МАТОЧНАЯ СМЕСЬ И СПОСОБ ПОЛУЧЕНИЯ ПОЛИАМИДНОЙ СМОЛЯНОЙ КОМПОЗИЦИИ С ПРИМЕНЕНИЕМ МАТОЧНОЙ СМЕСИ

Изобретение относится к маточной смеси для полиамидной смоляной композиции, используемой для изготовления упаковочного материала, непроницаемого для бензина материала, волокнистого материала, материалов для шлангов, упаковочных бутылок, а также к способу получения полиамидной смоляной композиции с применением вышеуказанной маточной смеси. Маточная смесь содержит полиамид (X), включающий диаминовое звено, состоящее на 70 мольных % или более из метаксилилендиаминового звена, и звено дикарбоновой кислоты, и щелочное соединение (A). Средний диаметр частиц щелочного соединения (A), содержащегося в маточной смеси, равен 50 мкм или меньше. Содержащееся число частиц с диаметром частиц, превышающим 80 мкм, на 5 квадратных миллиметров поперечного среза маточной смеси, равно 1,5 частицам или менее. Сумма (m) значений, полученных умножением молярной концентрации атома щелочного металла и молярной концентрации атома щелочноземельного металла, каждого содержащегося на 1 г маточной смеси, на валентности ...

СМЕСЬ ПОЛИАМИДОВ С УЛУЧШЕННОЙ ТЕКУЧЕСТЬЮ

Изобретение относится к термопластичной композиции с улучшенной текучестью в расплавленном состоянии на основе полиамидов, предпочтительно приемлемых для получения композиционных материалов, получаемых пропиткой упрочняющего наполнителя, способу получения композиционного изделия и применению неизменяющегося полиамида в качестве добавки, понижающей вязкость. Термопластичная композиция содержит, по меньшей мере: (a) полиамид, имеющий в расплавленном состоянии вязкость, превышающую или равную 50 Па·с, и неизменяющийся полиамид (b), имеющий в расплавленном состоянии вязкость, меньшую, чем вязкость полиамида (a) в расплавленном состоянии, и превышающую 0,8 Па·с. Полиамид (b) обладает среднечисленной молекулярной массой Mn, меньшей, чем у полиамида (a). Указанная композиция имеет в расплавленном состоянии вязкость, стабилизированную при значении меньшем, чем значение вязкости полиамида (a) в расплавленном состоянии. Причем в полиамиде (b) концентрация концевых аминогрупп (AEG) и/или концевых ...

КОМПОЗИЦИЯ ПОЛИАМИДНОЙ СМОЛЫ

Группа изобретений касается композиции полиамидной смолы, способа ее получения, а также многослойного формованного изделия, используемого в виде упаковочного материала. Композиция полиамидной смолы содержит полиамид (X), включающий диаминовое звено, включая 90 мол.% или более метаксилилендиаминового звена, и звено дикарбоновой кислоты, включая 70 мол.% или более звена адипиновой кислоты или звена себациновой кислоты, и щелочное соединение (A), которое представляет собой, по меньшей мере, одно соединение, выбранное из карбонатов и карбоксилатов щелочных металлов и щелочноземельных металлов, где удовлетворяются следующие уравнения с (1) по (4):10≤([COOH]-[NH])≤80 (1)0,32≤P<6,46 (2)0,50≤M<17,00 (3)2≤M/P≤3 (4).В указанных уравнениях (1)-(4) [COOH] обозначает концентрацию (мкэкв./г) концевых карбоксильных групп в полиамиде (X); [NH] обозначает концентрацию (мкэкв./г) концевых аминогрупп в полиамиде (X); P обозначает мольную концентрацию (мкмоль/г) атомов фосфора, содержащихся в г композиции ...

ПАРОИЗОЛЯТОР НАПРАВЛЕННОГО ДЕЙСТВИЯ ДЛЯ РАБОТЫ В УСЛОВИЯХ ПЕРЕМЕННОЙ ВЛАЖНОСТИ

Изобретение относится к области изоляции зданий и касается пароизолятора направленного действия для работы в условиях переменной влажности. Изобретение также относится к применению пароизолятора для изоляции зданий, к системе, содержащей такой пароизолятор, и к применению определенной пленки для изоляции закрытого наружной облицовкой пространства в зданиях. Пароизолятор включает по меньшей мере два слоя, причем один слой является влагозависимым, а другой слой является влагонезависимым. Для первого слоя отношение сопротивления паропроницанию Sпри средней относительной влажности воздуха 25% к Sпри средней относительной влажности воздуха 71,5% составляет больше 3. Для второго слоя отношение сопротивления паропроницанию Sпри средней относительной влажности воздуха 25% к Sпри средней относительной влажности воздуха 71,5% составляет меньше 1,5. В силу определенной комбинации слоев, пароизолятор обладает чувствительной к направлению проницаемостью для водяных паров, поэтому может использоваться ...

ПАРОИЗОЛЯТОР НАПРАВЛЕННОГО ДЕЙСТВИЯ ДЛЯ РАБОТЫ В УСЛОВИЯХ ПЕРЕМЕННОЙ ВЛАЖНОСТИ

ПОЛИМЕРНАЯ ПЛЕНКА, СОДЕРЖАЩАЯ СОПОЛИАМИД ИЗ ПО МЕНЬШЕЙ МЕРЕ ОДНОГО ДИАМИНА, ОДНОЙ ДИКАРБОНОВОЙ КИСЛОТЫ И ОДНОЙ ДИМЕРНОЙ КИСЛОТЫ

СПОСОБ ПОУЧЕНИЯ ПОЛИАМИДА, НЕЙЛОНОВАЯ СОЛЬ, ИСПОЛЬЗУЕМАЯ В НЕМ, И СПОСОБ ПОЛУЧЕНИЯ ТАКОЙ СОЛИ

СОСУД ДАВЛЕНИЯ, ЛЕЙНЕР И СПОСОБ ИЗГОТОВЛЕНИЯ СОСУДА ДАВЛЕНИЯ

ТЕРМОУСАДОЧНАЯ ПЛЕНКА С ПОЛИАМИДОМ 6/6.6

Orientierter Film aus Polyamidharzzusammensetzung

HOCHTEMPERATUR-TRENNFOLIE FUER GEDRUCKTE SCHALTUNGSPLATTEN.

Co:polyamide for prodn. of hot melt adhesive film for textile material

Copolyamides having a m.pt. of 100-140 deg C and a melt index (DIN 735) of 5-50 g/10 minutes at 160 deg C, are made from a combination of: (a) 40-95 wt.% of an equimolar mixt. of piperazine and dodecanedicarboxylic acid, and (b) 60-5 wt.% 12-aminododecanoic acid and/or 11-aminoundecanoic acid. Also claimed are: (i) a method for preparing a polyamide foil by extrusion of the copolyamides; and (ii) use of the polyamide foils as high m.pt. foils.

Kunststoffbauteil, Fahrzeug und Verfahren zum Herstellen eines Kunststoffbauteils

Um ein Kunststoffbauteil, insbesondere ein Verbundbauteil, bereitzustellen, welches besonders leicht und insbesondere zugleich stabil ist, wird vorgeschlagen, dass das Kunststoffbauteil Folgendes umfasst: einen Grundkörper aus einem Grundmaterial, welcher in einem Spritzgussverfahren hergestellt ist; und ein oder mehrere Verstärkungselemente aus einem Verstärkungsmaterial, welche mit dem Grundkörper verbunden sind.

PHOSPHORHALTIGE FLAME PROTECTION CENTRAL AGGLOMERATES

COPOLYAMIDE

PIPERAZIN CONTAINING STURDY PP RESIN DISPERSION AND PROCEDURE FOR THE PRODUCTION

INTRINSISCH GEL-FREE, ZUFFÄLLIG BRANCHED PP

POLYESTER MERGING WITH GOOD GAS BARRIER CHARACTERISTICS

Variable-humidity directional vapour barrier

The present invention relates to a variable-humidity directional vapour barrier which comprises at least two layers, wherein one layer (layer 1) is humidity-variable and the other layer (layer 2) is humidity-independent. For layer 1, the quotient for the water vapour diffusion resistance from the s ...

New formulation methodology for distortional thermosets

NEW FORMULATION METHODOLOGY FOR DISTORTIONAL Methods and formulations for distortional thermosets are disclosed that display enhanced composite mechanical performances and robust sorption resistance. The composition includes an epoxy resin of formula (I): 0- -O (I), and a diamine curing agent. The resultant distortional thermoset compositions possess superior out life requirements and advantageous reaction kinetics for preparing prepreg compositions and materials.

Partially aromatic copolyamides

POLYAMIDE AND BIORESOURCED REINFORCEMENT COMPOSITIONS HAVING IMPROVED MECHANICAL PROPERTIES

La présente invention a pour objet une composition associant au moins un polyamide présentant au moins une entité MXD, MXD désignant la méta-xylylène diamine ou un mélange de méta-xylylène diamine et de para-xylylène diamine, à un renfort bioressourcé. L'invention concerne également la transformation de ces compositions, par injection ou extrusion, en objets ayant de bonnes propriétés mécaniques, lesdits objets répondant à des cahiers des charges techniques applicatifs tels que l'on peut trouver par exemple dans l'automobile, le bâtiment, le sport et les domaines électriques ou électroniques.

POLYAMIDES WITH PENDENT OPTICAL ABSORBERS AND RELATED METHODS

Methods for producing a polyamide having an optical absorber pendent from the polyamide's backbone (OAMB-polyamide) may comprise: esterifying a hydroxyl-pendent optical absorber with a halogen-terminal aliphatic acid to yield a halogen-terminal alkyl-optical absorber; and N-alkylating a polyamide with the halogen-terminal alkyl-optical absorber to yield the OAMB-polyamide. Other methods for producing an OAMB-polyamide may comprise: esterifying a carboxyl-pendent optical absorber with a halogen-terminal aliphatic alcohol to yield a halogen-terminal alkyl-optical absorber; and N-alkylating a polyamide with the modified optical absorber to yield a polyamide having the OAMB-polyamide.

POLYAMIDE 6 RESINS CONTAINING A LOW LEVEL OF POLYAMIDE 66 COMONOMER

Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol.% to 99 mol.% of the total moles of caprolactam and hexamethylenediamine adipate.

PROCESS AND FORMULATION FOR PRODUCING A POLYAMIDE HAVING LOW CAPROLACTAM CONCENTRATION AND SPECIFIC RELATIVE VISCOSITY

A base polyamide composition comprising a nylon mixture having caprolactam units from 1 wppb to 50 wppm catalyst composition; and greater than 0.75 wt% residual caprolactam, wherein the base polyamide composition has a delta end group level ranging from 30 µeq/gram to 90 µeq/gram.

FILM WITH ADJUSTABLE WATER VAPOR-PERMEABILITY

The invention relates to a hydrophobic breathable film based on a polymer mixture of A) at least one hydrophilic elastomer block copolymer made of at least one polyamide block and at least one polyalkylene oxide block and B) at least one thermoplastic polymer, which regulates the steam-permeability of the breathable film, with a water absorption of = 2 Gew.%.

PROCESS FOR PREPARING A POLYAMIDE, A NYLON SALT TO BE USED THEREIN AND A PROCESS FOR MAKING THE SALT

The present invention relates to a process for preparing a polyamide, a polyamide material obtainable by the said process, a nylon salt to be used therein, and a process for making the nylon salt. The process for preparing the polyamide is a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.

POLYAMIDE MIXTURE HAVING IMPROVED FLUIDITY

The invention concerns a thermoplastic composition having improved fluidity in the molten state, comprising at least: (a) a polyamide having a viscosity in the molten state greater than or equal to 50 Pa.s, and (b) a non-evolutive polyamide having a viscosity in the molten state less than that of said polyamide (a) in the molten state, greater than 0.8 Pa.s and provided with a number average molecular weight Mn less than that of said polyamide (a), said composition having a melt viscosity stabilised at a value less than the melt viscosity of said polyamide (a), said polyamide (b) having: - a concentration of amine end groups (GTA) and/or of carboxyl end groups (GTC) of less than or equal to 20 meq/kg, or - a concentration of amine end groups (GTA) of greater than or equal to 25 meq/kg; a concentration of acid end groups (GTC) of greater than or equal to 25 meq/kg; and a concentration of blocked end groups (GTB) of greater than or equal to 25 meq/kg.

POLYAMIDE RESIN FILMS AND PROCESSES FOR MANUFACTURING THEM

A xylylenediamine-based polyamide resin monolayer film which can be thinly rolled is provided. The polyamide film is derived from xylylenediamine having diamine structural units with a mole percent of at least 70, comprises a polyamide resin obtained by the polycondensation of dicarboxylic acid, has a film thickness of 10 to 50 µm, and graining is conducted on the surface thereof.

COMPOSITE COMPRISING A MATRIX MATERIAL MADE OF AN AMORPHOUS POLYAMIDE AND USE THEREOF

The invention relates to a composite which comprises a matrix material made of an amorphous polyamide with a glass transition temperature of at least 180°C. The composites according to the invention are used for the production of reinforced components in the fields of sport, leisure, engineering industry, electronics, construction, medical technology, communication and transport means and aeronautical and aerospace engineering.

CHEMICAL-RESISTANT FILMS OF HIGH OPTICAL QUALITY

The invention relates to a method for producing transparent plastic films or plastic moldings having particularly high chemical resistance, in particular very good resistance with respect to oil-water or water-oil emulsions, and of high optical quality.

FIBER-REINFORCED COMPOSITES MADE WITH THERMOPLASTIC RESIN COMPOSITIONS AND REACTIVE COUPLING FIBERS

Methods of making fiber-resin compositions are described. The methods may include the providing of a thermoplastic resin to an extruder, where the thermoplastic resin may include at least one reactive moiety capable of forming a covalent bond with a coupling agent on a plurality of reactive fibers. The methods may further include combining the thermoplastic resin with the plurality of reactive fibers also supplied to the extruder. The reactive fibers are sized with the coupling agent that reacts with the thermoplastic resin to form the fiber-resin composition, which may be extruded from the extruder. Methods of making fiber-reinforced composite articles from the fiber-resin composition are also described.

Monofilaments production from

Process for producing monofilaments with a diameter of >0.20 mm for industrial purposes using 100 % recycled polyamide-6,6 polymer, comprises filtering a melt of the recycled polymer through a 30-120 micrometre mesh sieve and subsequently granulating the material; post-condensing and drying the granulate; and melting and melt spinning the product.

Matériau composite à base de matière naturelle contenant des scléroprotéines.

L’invention concerne un matériau composite à base de particules d’une matière naturelle contenant des scléroprotéines, notamment de corne ou de cuir. Ces particules sont dispersées dans une matrice d’un polymère thermoplastique choisi parmi le polyamide 11 et les polyéther-bloc-amides. Un procédé de préparation de ce matériau composite comprend le mélange desdites particules et dudit polymère thermoplastique et la mise en forme de ce mélange.

Reinforced nylon material used for injection molding of high-precision complex-structure products with and preparation method of reinforced nylon material

Method and application for preparing polyamide/chitosan blend membrane

COMPOSITION AND METHOD FOR COMPOSITE MATERIAL WITH SEMI-CRYSTALLINE POLYAMIDE IMPREGNATION PREPOLYMER AND CHAIN EXTENDER

FIBROUS MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER

USE OF AN AQUEOUS DISPERSION FINE POLYMER FOR FIBER IMPREGNATION NATURAL.

L'invention concerne l'utilisation d'une dispersion aqueuse de polymère, comprenant au moins un polymère amorphe de Tg allant de 50°C à 175°C ou un polymère semi-cristallin de température de fusion allant de 70°C à moins de 220°C, ladite dispersion ayant un taux en poids dudit polymère allant de 5 à 50% avec une taille moyenne en nombre des particules de polymère inférieure à 10000 nm, comme liant d'imprégnation de mèches ou de rubans des fibres naturelles, en particulier des fibres de lin avec ledit polymère étant incorporé au cœur du faisceau de fibres constituant ladite mèche ou ledit ruban et liant ainsi lesdites fibres entre elles.

METHOD FOR COMPOSITE MATERIAL WITH IMPREGNATION BY THERMOPLASTIC POLYMER, FROM A PREPOLYMER AND A CHAIN EXTENDER

THERMOPLASTIC COMPOSITION HAS HIGH FLOW

COMPOSITION POLYAMIDE BASED THERMOPLASTIC POLYMER AND A PREPOLYMER CHAIN EXTENDER AND METHOD OF MANUFACTURE

WATER DISPERSIBLE POLYAMIDE POWDER

La présente invention concerne une poudre à base de particules de polyamide dans laquelle : - ledit polyamide comporte plus de 50% molaire d'extrémités amines sur le nombre total d'extrémités amines et acides du polyamide; - lesdites particules comportent à leur surface des groupements amines primaires neutralisés par un acide de Brönsted à base de phosphore, tel que l'acide phosphorique ; - la D50 des particules est comprise dans la gamme de 100 nm à 50 µm, de préférence de 100 nm à 20 µm. La présente invention concerne notamment un procédé de fabrication d'une telle poudre et la fabrication de dispersions aqueuses la comprenant.

THERMOPLASTIC POLYMERIC COMPOSITION CONTAINING POLYAMIDE

COMPOSITE ARTICLE CONTAINING RESINS POLYAMIDES OF LOW MOLECULAR MASSES

La présente invention concerne l'utilisation de résines polyamides de faibles masses moléculaires pouvant être mises en œuvre dans des conditions de transformation similaires à celles des polyamides de hautes masses moléculaires pour la fabrication d'articles composites. Les dits articles présentent de bonnes propriétés mécaniques, telles que notamment la rigidité, la résistance à la rupture, la résistance aux chocs, et le comportement en fatigue, même lorsqu'ils sont fabriqués avec des temps de cycle plus courts que ceux habituellement utilisés, et sans aucun autre traitement pendant ou après la fabrication des articles composites.

팽창된 폴리아미드 펠릿들 및 이들을 이용하여 몰딩된 구성요소들을 제조하는 방법

... 본 발명은 팽창된 폴리머 펠릿들을 생성하는 방법에 관한 것이며, 이는 다음 단계들: 폴리아미드를 포함한 폴리머를 용융하는 단계; 적어도 하나의 발포제를 첨가하는 단계; 팽창된 폴리머를 생성하기 위해 적어도 하나의 다이를 통해 용융물을 팽창시키는 단계; 및 팽창된 폴리머를 펠릿화하는 단계를 포함한다. 또한, 본 발명은 상기 방법으로 생성된 폴리머 펠릿들, 및 예를 들어 스포츠 의류용 완충 요소들의 생성을 위한, 예컨대 스포츠 슈즈의 창들 또는 창들의 부분들을 생성하기 위한 이들의 사용에 관련된다. 본 발명의 또 다른 실시형태는 몰딩된 구성요소들의 제조를 위한 방법에 관련되며, 이는 몰드로 팽창된 폴리머 재료의 펠릿들을 로딩하는 단계, 및 열 에너지를 제공함으로써 펠릿들을 연결하는 단계를 포함하고, 이때 펠릿들 또는 비드들의 팽창된 폴리머 재료는 사슬 연장제를 포함한다. 몰딩된 구성요소들은 광범위한 적용에서 사용될 수 있다.

팽창된 폴리머 펠릿

... 본 발명은 팽창된 폴리머 펠릿들을 생성하는 방법에 관한 것이며, 이는 다음 단계들: 폴리아미드를 포함한 폴리머를 용융하는 단계; 적어도 하나의 발포제를 첨가하는 단계; 팽창된 폴리머를 생성하기 위해 적어도 하나의 다이를 통해 용융물을 팽창시키는 단계; 및 팽창된 폴리머를 펠릿화하는 단계를 포함한다. 또한, 본 발명은 상기 방법으로 생성된 폴리머 펠릿들, 및 예를 들어 스포츠 의류용 완충 요소들의 생성을 위한, 예컨대 스포츠 슈즈의 창들 또는 창들의 부분들을 생성하기 위한 이들의 사용에 관련된다. 본 발명의 또 다른 실시형태는 몰딩된 구성요소들의 제조를 위한 방법에 관련되며, 이는 몰드로 팽창된 폴리머 재료의 펠릿들을 로딩하는 단계, 및 열 에너지를 제공함으로써 펠릿들을 연결하는 단계를 포함하고, 이때 펠릿들 또는 비드들의 팽창된 폴리머 재료는 사슬 연장제를 포함한다. 몰딩된 구성요소들은 광범위한 적용에서 사용될 수 있다.

폴리아미드 수지 조성물, 및 성형체

... 본 발명은, 폴리아미드(A) 및 자유체적 조정제(B)를 함유하고, 양전자 소멸법에 의해 구해지는 자유체적이 0.0545nm3 이하인, 폴리아미드 수지 조성물(1)을 제공한다. 또한, 하기 일반식(I)로 표시되는 방향족 디아민 단위를 70몰% 이상 포함하는 디아민 단위와, 하기 일반식(II-1)로 표시되는 직쇄 지방족 디카르본산 단위 및 하기 일반식(II-2)로 표시되는 방향족 디카르본산 단위의 적어도 한쪽을 합계 50몰% 이상 포함하는 디카르본산 단위를 함유하는 폴리아미드(A) 100질량부에 대하여, 실록산 결합으로 주쇄가 구성된 폴리실세스퀴옥산(B)을 0.005~1.200질량부 첨가한, 폴리아미드 수지 조성물(2)을 제공한다 [상기 일반식(II-1) 중, n은 2~18의 정수를 나타낸다. 상기 일반식(II-2) 중, Ar은 아릴렌기를 나타낸다.] ...

표면 작용화 폴리아미드의 합성

... 본 발명은 작용화 표면(fO)을 갖는 표면 작용화 몰딩(oF)의 제조 방법에 관한 것이다. 이 방법에서, 몰딩(F)의 표면(O)은 디에노필 함유 용액(dL)과 접촉된다. 표면(O)은 푸란 단위를 포함하는 폴리아미드(P)를 포함한다. 이러한 푸란 단위는 디에노필 함유 용액(dL)에 존재하는 하나 이상의 디에노필과 반응되어 작용화 표면(fO)을 갖는 표면 작용화 몰딩(oF)을 형성할 수 있다.

METHOD OF INCORPORATING AN ADDITIVE INTO A POLYMER COMPOSITION AND DISPERSION USED THEREIN

composição de resina de poliamida

Fiber-reinforced polyamide resin base, method for producing same, molded article containing same, and composite molded article

A fiber-reinforced polyamide resin base which is obtained by impregnating a continuous reinforcing fiber or a reinforcing fiber base, in which discontinuous reinforcing fibers are dispersed, with a polyamide resin, and which is configured such that the polyamide resin is a terminally modified polyamide resin wherein at least some polymers constituting the polyamide resin have a structure, which is composed of a structural unit different from a repeating structural unit that constitutes the main chain of the polymers, at one end group of the polymers. Consequently, the present invention provides a fiber-reinforced polyamide resin base which exhibits excellent impregnatability and thermal stability, while having few voids and excellent surface quality.

Flame-retardant polyamide compositions with a high glow wire ignition temperature and use thereof

The invention relates to flame-retardant polyamide compositions with a glow wire ignition temperature of not less than 775 DEG C, comprising - polyamide having a melting point of not more than 290 DEG C as component A, - fillers and/or reinforcers as component B, - phosphinic salt of the formula (I) as component C in which R1 and R2 are ethyl, M is Al, Fe, TiOp or Zn, m is 2 to 3, and p=(4-m)/2 - compound selected from the group of the Al, Fe, TiOp and Zn salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid as component D - phosphonic salt of the formula (II) as component E in which R3 is ethyl, Met is Al, Fe, TiOq or Zn, n is 2 to 3, and q=(4-n)/2, and - melamine polyphosphate having an average degree of condensation of 2 to 200 as component F. The polyamide compositions can be used for production of fibers, films and shaped bodies, especially for applications in the electricals and electronics ...

POLYAMIDE RESIN FILM AND METHOD FOR MANUFACTURING SAME

A xylylenediamine-based polyamide resin monolayer film which can be thinly rolled is provided. The polyamide film is derived from xylylenediamine having diamine structural units with a mole percent of at least 70, comprises a polyamide resin obtained by the polycondensation of dicarboxylic acid, has a film thickness of 10 to 50 μm, and graining is conducted on the surface thereof.

OVERMOLDED POLYAMIDE COMPOSITE STRUCTURES AND PROCESSES FOR THEIR PREPARATION

The present invention relates to the field of overmolded composites structures and processes for their preparation, particularly it relates to the field of overmolded polyamide composite structures. The disclosed overmolded composite structures comprise i) a first component having a surface, which surface has at least a portion made of a surface resin composition, and comprising a fibrous material selected from non-woven structures, textiles, fibrous battings and combinations thereof, said fibrous material being impregnated with a matrix resin composition, ii) a second component comprising an overmolding resin composition, wherein said second component is adhered to said first component over at least a portion of the surface of said first component, and wherein the surface resin composition is selected from polyamide compositions comprising a blend of two or more fully aliphatic polyamides having a melting point of at least 250°C and wherein the matrix resin composition is selected from ...

Polymer comprising terminal sulfonic acid group, and polymer electrolyte and fuel cell using the same

The present invention is related to a polymer comprising terminal sulfonic acid groups, which has a high ionic conductivity and good structural stability, does not decompose even under low humidity conditions, and is inexpensive to produce. Furthermore, the present invention is related to a polymer electrolyte and a fuel cell using the same. The polymer of the present invention has a substituent comprising a terminal sulfonic acid group comprising Formula (1) at a side chain: where n may be a number in the range of about 1 to about 5.

Sidewall functionalization of single-wall carbon nanotubes through C-N bond forming substitutions of fluoronanotubes

The present invention is directed toward a method of sidewall-functionalizing single-walled carbon nanotubes (SWNTs) through C-N bond forming substitution reactions with fluorinated SWNTs (fluoronanotubes), and to the sidewall-functionalized SWNTs comprising C-N bonds between carbons of the SWNT sidewall and nitrogens of the functionalizing groups made by these methods. Furthermore, when diamine species are utilized as reactants, novel materials like crosslinked SWNTs and "nanotube-nylons" can be generated. In some embodiments, SWNTs with functional groups covalently attached to their side walls through C-N bonds are prepared by either the direct interaction of fluoronanotubes with terminal alkylidene diamines or diethanolamine, or by a two-step procedure involving consecutive treatments with Li₃N in diglyme and RCl (R=H, n-butyl, benzyl) reagents. Evidence for sidewall attachment of amine-derived groups has been provided by Raman, FTIR, and UV-vis-NIR spectra, SEM/EDAX and TEM ...

POLYAMIDE 10.10 POWDER AND ITS USE IN PERSONAL CARE PRODUCTS

The present invention is directed to particles based on polyamide 10.10, wherein the particles have a mean particle size d50 from 1 to 50 m, an apparent density from 180 to 300 g/l and a NH2/COOH end group ratio of from 50:50 to 95:5, the use of such particles for the production of cosmetic compositions, the cosmetic composition itself and a process for producing the particles.

Hydroxypolyamide Gel Forming Agents

Hydroxypolyamides, hydroxypolyamide products, and post-hydroxypolyamides are disclosed as gel forming agents. Hydroxypolyamides and post-hydroxypolyamides are prepared from known methods. Hydroxypolyamide products are produced from a modified polymerization procedure which utilizes strong base for deprotonation of ammonium salts from the esterification of stoichiometrically equivalent polyacid:polyamine salts. The hydroxypolyamide products are capable of gel formation at lower concentrations than hydroxypolyamides and post-hydroxypolyamides from the known methods of preparation, and are therefore superior gel forming agents.

POLYAMIDE FILMS AND PROCESS FOR PREPARATION

The invention relates to a stretched polymer film made of a polyamide composition comprising a semi-crystalline semi-aromatic polyamide (PPA), wherein the PPA consists of repeat units derived from aromatic dicarboxylic acid comprising at least 80 mole % of terephthalic acid, relative to the total amount of aromatic dicarboxylic acid; and diamine comprising at least 5 mole % 1,4-butanediamine and at least 5 mole % 1,6-hexanediamine, relative to the total amount of diamine, the combined amount of 1,4-butanediamine and 1,6-hexanediamine being at least 60 mole % relative to the total amount of diamine; and 0-2 mole % of other monomeric units, relative to the total amount of aromatic dicarboxylic acid, diamine and other monomeric units. The invention further relates to a process for preparing the polyamide film by melt extrusion and stretching of the film.

POLYAMIDE 1010 POLYMER PARTICLES AND METHOD FOR PRODUCING SAME

The production of polyamide 1010 polymer particles, in which polyamide 1010 resin, a different polymer B and an organic solvent are dissolved and mixed and thereupon an emulsion is formed within a system for phase separation into two phases, being a solution phase having the polyamide 1010 resin as the main component and a solution phase having the polymer B as the main component, and thereafter a poor solvent of the polyamide 1010 resin is brought into contact therewith to precipitate the polyamide 1010 resin, wherein the formation of the emulsion is carried out at a temperature of 100° C. or higher, thereby making it possible to obtain highly crystalline polyamide 1010 particles having a high sphericity.

COMPOSITE MATERIAL BASED ON POLYAMIDE AND ON POLY(LACTIC ACID), MANUFACTURING PROCESS AND USE THEREOF

PROCEDURE FOR THE PRODUCTION OF BRANCHED PP

POLYMER-BASED CASING FOR SAUSAGES

Hydroxypolyamide gel forming agents

Hydroxypolyamides, hydroxypolyamide products, and post-hydroxypolyamides are disclosed as gel forming agents. Hydroxypolyamides and post-hydroxypolyamides are prepared from known methods. Hydroxypolyamide products are produced from a modified polymerization procedure which utilizes strong base for deprotonation of ammonium salts from the esterification of stoichiometrically equivalent polyacid:polyamine salts. The hydroxypolyamide products are capable of gel formation at lower concentrations than hydroxypolyamides and post-hydroxypolyamides from the known methods of preparation, and are therefore superior gel forming agents.

New formulation methodology for distortional thermosets

NEW FORMULATION METHODOLOGY FOR DISTORTIONAL Methods and formulations for distortional thermosets are disclosed that display enhanced composite mechanical performances and robust sorption resistance. The composition includes an epoxy resin of formula (I): 0 -O (I), and a diamine curing agent. The resultant distortional thermoset compositions possess superior out life requirements and advantageous reaction kinetics for preparing prepreg compositions and materials.

Composite comprising a matrix material made of an amorphous polyamide and use thereof

EMS-PATENT AG Abstract The invention relates to a composite which comprises a matrix material made of an amorphous polyamide with a glass transition temperature of at least 180'C. The composites according to the invention are used for the production of reinforced components in the fields of sport, leisure, engineering industry, electronics, construction, medical technology, communication and transport means and aeronautical and aerospace engineering.

Polyamide mixture having improved fluidity

The invention concerns a thermoplastic composition having improved fluidity in the molten state, comprising at least: (a) a polyamide having a viscosity in the molten state greater than or equal to 50 Pa.s, and (b) a non-evolutive polyamide having a viscosity in the molten state less than that of said polyamide (a) in the molten state, greater than 0.8 Pa.s and provided with a number average molecular weight Mn less than that of said polyamide (a), said composition having a melt viscosity stabilised at a value less than the melt viscosity of said polyamide (a), said polyamide (b) having: - a concentration of amine end groups (GTA) and/or of carboxyl end groups (GTC) of less than or equal to 20 meq/kg, or - a concentration of amine end groups (GTA) of greater than or equal to 25 meq/kg; a concentration of acid end groups (GTC) of greater than or equal to 25 meq/kg; and a concentration of blocked end groups (GTB) of greater than or equal to 25 meq/kg.

POLYMER-BASED CASING FOR SAUSAGES

The invention relates to a polymer-based casing for sausages which is designed to be used with uncooked meats such as chorizo. According to the invention, a polymer resin is mixed with a silicon-based barrier control agent, preferably a polyhedral oligomeric silsesquioxane, in order to increase the permeability of the sausage casing. The resulting mixture can be stretched and oriented biaxially in order to produce a polymer-based sausage casing comprising a single layer, which can be used with uncooked meat in the form of sausages, such as chorizo, and which is specifically designed to enable the gas and moisture permeability which is necessary during the curing of uncooked meats in the form of sausages. The inventive polymer-based casing can also be used for cooked sausages by selecting a silicon-based barrier control agent which increases the gas and moisture barrier, thereby increasing the shelf life of cased sausages. The invention also relates to a method of improving the casing detachment ...

RECYCLING OF FIBROUS SURFACE COVERINGS

Methods, compositions, single phase aqueous solutions, process mixtures, and kits are provided relating to recycling a fibrous surface covering, e.g., carpet, using a single-phase aqueous solution. For example, a method of recycling a fibrous surface covering may include providing the single phase aqueous solution. The single phase aqueous solution may include water and a surfactant composition. The method may include providing the fibrous surface covering. The fibrous surface covering may include: a fibrous surface layer; a first backing coupled to the fibrous surface layer; and a binder coupled to one or more of the first backing and the fibrous surface layer. The method may include contacting the single phase aqueous solution and the fibrous surface covering to form a process mixture under conditions effective to provide a recycled portion of the fibrous surface covering.

POLYAMIDES WITH PENDENT PIGMENTS AND RELATED METHODS

A nonlimiting example method for synthesizing a pigment-pendent polyamide (PP-polyamide) may comprise: functionalizing metal oxide particles bound to a pigment particle with a compound having an epoxy to produce a surface treated pigment having a pendent epoxy; and reacting the pendent epoxy with a polyamide to yield the PP-polyamide. Another nonlimiting example method for synthesizing a PP-polyamide may comprise: functionalizing metal oxide particles bound to a pigment particle with a silica particle having a carboxylic acid surface treatment to produce a surface treated pigment having a pendent carboxylic acid; converting the pendent carboxylic acid to a pendent acid chloride; and reacting the pendent acid chloride with a polyamide to yield the PP-polyamide. Said PP-polyamide may be useful in producing objects by methods that include melt extrusion, injection molding, compression molding, melt spinning, melt emulsification, spray drying, cryogenic milling, freeze drying polymer dispersions ...

POLYAMIDE BEADS AND METHOD FOR PRODUCING SUCH BEADS

La présente invention concerne des perles ou granulés en polyamide et un procédé de fabrication de ces perles ainsi que leur utilisation comme élémen t d'étayage des fissures souterraines naturelles ou artificielles de l'écorc e terrestre utilisées notamment pour l'extraction des hydrocarbures tels que le pétrole ou le gaz naturel.L'invention concerne des perles de polyamide d e forme sphérique ou ellipsoïdale dont la surface ne comprend pas de partie concave, avantageusement de forme régulière, présentant un diamètre moyen in férieur ou égal à 1,7 mm et une porosité inférieure à 0,1 ml/g. Elle concern e également un procédé de fabrication de ces perles utilisant un dispositif de coupe en tête noyée.

DOPE AND METHOD FOR MANUFACTURE OF FIBER USING THE DOPE

Disclosed is a dope which has an excellent moldability and can be molded into a fiber, a film, a pulp-like particle or the like by a wet bag process. Also disclosed is a method for manufacture of a fiber having excellent heat resistance, strength and elastic modulus. The dope comprises a polyamide having a repeat unit represented by the formula (I): wherein Ar1 represents at least one substituent selected from the group consisting of the following groups: and and has an intrinsic viscosity of 1.0 or more and a basic solvent. In the dope, the polyamide is contained at a concentration exceeding 10% by weight and up to 25% by weight. The dope has optical anisotropy at 50~C. The method for manufacture of the fiber is characterized by using the dope.

BINDER COMPOSITION, REINFORCING-FIBER BASE MATERIAL, PREFORM, FIBER-REINFORCED COMPOSITE MATERIAL, AND MANUFACTURING METHOD THEREFOR

Provided is a binder composition that contains: (A) an amorphous polyamide, having a glass transition temperature of at least 140°C, each molecule of which has a dicyclohexylmethane skeleton; and (B) a sulfonamide compound. Said binder composition is optimal for RTM and makes it possible to obtain a fiber-reinforced composite material that is highly impact-resistant, exhibits stable properties even under changing molding conditions, and is optimal for members such as primary structural members used in aircraft. Also provided are a reinforcing-fiber base material and a preform.

POLYAMIDE RESIN MOLDINGS

Provided is a xylylenesebacamide resin molding which is excellent in mechanical strength such as elastic modulus and avoids the problem of mechanical strength loss during long-term use. This is a molding of a polyamide resin or a polyamide resin composition containing the polyamide resin, wherein 70 mol % or more of the diamine structural unit is derived from xylylenediamine (A) and 50 mol % or more of the dicarboxylic acid structural unit is derived from sebacic acid (B), and the molding has a crystallinity index of 0 to 50 % and a moisture content of 0.1 to 2 % by mass.

COMPOSITIONS BASED ON BLOCK COPOLYETHERAMIDES, BLOCK COPOLYESTERS, FUNCTIONAL POLYOLEFINS AND STARCH FOR BREATHABLE FILM APPLICATIONS

Un film imper respirant comprenant: a) un copolyéther bloc amide et/ou un copolyéther bloc ester et/ou une polyoléfine fonctionnalisée; b) de l'amidon. Ce film peut être utilisé comme film sous-toiture ou film d'isolation murale d'une habitation.

SEMIAROMATIC POLYAMIDE MOLDING COMPOSITIONS AND THEIR USE

A polyamide molding composition with the following constitution is described: (A) from 30 to 100% by weight of at least one 10T/6T copolyamide, where this is composed of (A1) from 40 to 95 mol% of 10T units, formed from the monomers 1,10-decanediamine and terephthalic acid (A2) from 5 to 60 mol% of 6T units, formed from the monomers 1,6-hexanediamine and terephthalic acid (B) from 0 to 70% by weight of reinforcing materials and/or fillers (C) from 0 to 50% by weight of additives and/or further polymers where the entirety of components A to C is 100%, with the proviso that in component (A) up to 30 mol%, based on the entirety of the dicarboxylic acids, of the terephthalic acid can have been replaced by other aromatic, aliphatic, or cycloaliphatic dicarboxylic acids, and with the proviso that in component (A) up to 30 mol% of 1,10-decanediamine and respectively 1,6--hexanediamine, based on the entirety of the diamines, can have been replaced by other diamines, and with the proviso that not ...

SIZED GLASS FIBERS FOR FIBER-CONTAINING COMPOSITE ARTICLES AND METHODS OF MAKING THEM

Methods of making prepregs are described. The methods include the steps of forming a fiber-containing substrate, and contacting the fiber-containing substrate with a resin mixture. The resin mixture may include polymer particles mixed in a liquid medium, and the polymer particles may be coated on the fiber-containing substrate to form a coated substrate. The liquid medium may be removed from the coated substrate to form the prepreg. The prepregs may be used to make fiber-reinforced articles.

STABLE POLYAMIDE RESIN DISPERSIONS CONTAINING PIPERAZINE AND METHODS FOR THE MANUFACTURE THEREOF

... 2130901 9302125 PCTABS00019 Stable aqueous dispersions of finely divided piperazine-containing polyamide resin particles and methods for the manufacture thereof are provided. Dispersions according to this invention find use in hot melt adhesives, coatings, inks, and the like.

ПОЛИАМИДНЫЕ БУСИНКИ И СПОСОБ ПОЛУЧЕНИЯ ТАКИХ БУСИНОК

Изобретение относится к полиамидным бусинкам или гранулам и к способу производства таких бусинок, а также к их применению в качестве поддерживающего материала для подземных природных или искусственных трещин земной коры, особенно используемых для добычи углеводородов, таких как нефть или природный газ. Изобретение относится к полиамидным бусинкам, имеющим сферическую или эллипсоидную форму и имеющим поверхность без вогнутых частей, преимущественно имеющих одинаковую форму, средний диаметр менее чем или равный 1,7 мм и пористость менее чем 0,1 мл/г. Изобретение также относится к способу производства таких бусинок с использованием сопутствующего приспособления для резки.

ПОЛИАМИДНЫЕ БУСИНКИ И СПОСОБ ПОЛУЧЕНИЯ ТАКИХ БУСИНОК

Изобретение относится к полиамидным бусинкам или гранулам и к способу производства таких бусинок, а также к их применению в качестве поддерживающего материала для подземных природных или искусственных трещин земной коры, особенно используемых для добычи углеводородов, таких как нефть или природный газ. Изобретение относится к полиамидным бусинкам, имеющим сферическую или эллипсоидную форму и имеющим поверхность без вогнутых частей, преимущественно имеющих одинаковую форму, средний диаметр менее чем или равный 1,7 мм и пористость менее чем 0,1 мл/г. Изобретение также относится к способу производства таких бусинок с использованием сопутствующего приспособления для резки.

Insulating and flame retardance composite nylon material

Preparation method of high-abrasion-resistance carbon hybrid polyamide conductive composite material and material thereof

METHOD FOR TREATMENT OF POLYAMIDE SILICA FILLED BY IMPREGNATION IN THE SUPERCRITICAL CO2

METHOD IN OPEN MOLD FOR A COMPOSITE MATERIAL MATRIX REINFORCED SEMI-CRYSTALLINE POLYAMIDE FIBERS FROM REACTIVE PREPOLYMER PRECURSOR COMPOSITION

La présente invention concerne un procédé de fabrication en moule ouvert d'un matériau composite thermoplastique avec renfort fibreux et une matrice qui est un polyamide semi-cristallin de Tg d'au moins 80°C et de Tf inférieure ou égale à 280°C et supérieure à 200°C, préparé in-situ par polymérisation en masse à l'état fondu par polycondensation, d'une composition précurseur réactive comprenant selon A au moins un premier prépolymère polyamide A1 porteur de deux fonctions identiques X ou Y et au moins un second prépolymère polyamide A2 porteur de deux fonctions identiques X ou Y, différentes de celles de A1 et coréactives par rapport à celles de A1 ou d'une composition précurseur comprenant selon B au moins un prépolymère porteur (sur la même chaîne) de deux fonctions différentes X et Y coréactives entre elles ou d'une composition précurseur selon mélange de (A + B) avec X et Y étant respectivement carboxy ou amine et inversement avec ledit procédé comprenant les étapes successives de i ...

COMPOSITE BASED ON NATURAL LIGNOCELLULOSIC MATERIAL

POLYAMIDE COMPOSITION

La présente invention concerne des compositions polyamides ayant une bonne stabilité dimensionnelle comprenant une résine novolaque et des charges à structures en feuillets nanométriques. L'invention concerne aussi des procédés de fabrication de telles compositions et leurs utilisations pour la réalisation de différents articles, notamment par moulage par injection, pour diverses applications.

METHOD OF MAKING A COMPOSITE MATERIAL PART FROM PREPOLYMERS

ARTICLE FIREPROOFS CONTAINING POLYAMIDE INCLUDING/UNDERSTANDING A COATING BY PLASMA TREATMENT

La présente invention concerne des articles, notamment des articles moulés, ignifugés à base de polyamide comprenant un revêtement déposé en utilisant un plasma froid. Ces articles, présentant d'excellentes propriétés d'ignifugation, comprennent dans la matrice polyamide au moins un système d'ignifugation, et présentent un tel revêtement sur au moins une des surfaces desdits articles.

METHOD OF MAKING A COMPOSITE MATERIAL PART

WATER DISPERSIBLE POLYAMIDE POWDER

COMPOSITE POLYAMIDE BASED THERMOPLASTIC SEMICRYSTALLINE AND METHOD OF MANUFACTURE

ADAPTIVE VAPOR BARRIER

La présente invention concerne une barrière à la vapeur d'eau comprenant, voire consistant en, un film, un textile ou une couche de matériau P, ledit matériau P comprend, voire consiste en, au moins un copolymère A qui est un polyamide de type PAXY/XAIS Mn+1/n ou de type PAZ/XAISMn+1/n, un article comprenant une telle barrière, et l'utilisation d'un copolymère A ou d'un matériau P pour fabriquer une barrière à la vapeur d'eau, en particulier une barrière à la vapeur d'eau adaptative à l'humidité ambiante.

SEMIAROMATIC POLYAMIDE MOLDING COMPOSITIONS AND THEIR USE

복합 재료를 위한 높은 유리 전이 온도를 갖는 반결정질 폴리아미드 조성물, 이의 제조 방법, 및 이의 용도

... 본 발명은 하기를 포함하는 열가소성 복합 재료를 위한 조성물에 관한 것이다: - 50 내지 100 중량% 의 반결정질 폴리아미드 중합체 및 0 내지 50 중량% 의 하나 이상의 첨가제 및/또는 하나 이상의 기타 중합체를 포함하는, 30 내지 60 부피%, 바람직하게는 35 내지 50 부피% 의 열가소성 매트릭스; 및 - 40 내지 70 부피%, 바람직하게는 50 내지 65 부피% 의 긴 강화 섬유 (또는 긴 섬유 강화물), 상기 열가소성 매트릭스는 긴 강화 섬유 (또는 긴 섬유 강화물) 를 함침시키고, 상기 반결정질 폴리아미드 중합체는 하기이고: (a) 반결정질 폴리아미드 중합체의 하나 이상의 반응성 폴리아미드 예비중합체 전구체를 포함하거나 이로 이루어지는 반응성 조성물, 또는 (a) 에 대한 대안으로서, (b) 하나 이상의 폴리아미드 중합체의 비반응성 조성물, 상기 조성물은 상기 정의된 열가소성 매트릭스의 것임, 상기 조성물은 상기 정의된 열가소성 매트릭스의 것이고, 조성물 (a) 의 상기 반응성 폴리아미드 예비중합체 및 조성물 b) 의 상기 폴리아미드 중합체는 하나 이상의 BACT/XT 코폴리아미드를 포함하거나 이로 이루어짐.

폴리아미드 수지 조성물, 제조 방법, 성형품

... 내열노화성, 표면 외관, 체류 안정성, 치수 정도, 내약품성 등이 우수한 폴리아미드 수지 조성물을 제공한다. (I) 수산기, 에폭시기, 또는 카르보디이미드기를 가지는, 특정 구조의 화합물 및/또는 그 축합물을 특정량 포함하는 폴리아미드 수지 조성물. 또는 (II) 1분자 중에 3개 이상의 아미노기 또는 3개 이상의 수산기를 가지는 지방족 화합물이라고 상기 아미노기 또는 수산기와 반응할 수 있는 관능기를 1분자 중에 1개보다 많이 가지는 화합물을 특정량 포함하는 폴리아미드 수지 조성물이며, 상기 폴리아미드 수지 조성물을 사출 성형하여 얻을 수 있는 두께 3.2 mm의 ASTM1호 덤벨을, 대기 하, 130℃에서 100시간 열처리 했을 때, 성형품 표면으로부터 0.2 mm까지의 깊이의 폴리아미드 수지 조성물 중의 카르복시기 농도의 열처리 후의 증가율이 70% 미만인 폴리아미드 수지 조성물.

직물 절단 스크랩의 용도

... 본 발명은, 직물 절단 스크랩을 이용하는 방법으로서, (a) 절단 스크랩을 플레이크로 절단하는 단계, (b) 플레이크를 폴리머 용융물에 혼합하는 단계, (c) 플레이크를 갖는 폴리머 용융물을 혼련시켜, 플레이크가 개개의 섬유로 분해되도록 하는 단계, (d) 혼합된 섬유를 갖는 폴리머 용융물을 중간 물품으로 성형하는 단계 를 포함하는 방법을 제공한다.

Binder Compositions and Methods for Making and Using Same

Binder compositions and methods for making and using same are provided. The binder composition can include at least one polyamidoamine prepolymer and at least one copolymer. The copolymer can include one or more vinyl aromatic derived units, and one or more unsaturated carboxylic acids, one or more unsaturated carboxylic anhydrides, or a combination thereof. The copolymer can be modified by reaction with one or more base compounds.

Transparent or translucent extruded polyamide

The invention relates to a process for forming an extruded transparent or translucent polyamide article including melt calendering to improve the physical properties and optical clarity. The polyamide article is a sheet, film, or profile.

Method for increasing the recyclability of a polyamide used in sintering

The present invention relates to a method for increasing the recyclability of a polyamide in a sintering process, wherein at least 4000 ppm of at least one acid is incorporated in the polyamide, said acid being selected from: the acids of general formula HxPyOz in which x, y and z are integers selected in the range from 1 to 7, boric acid, the salts of these acids, their esters, their anhydrides and mixtures thereof.

Recycled thermoplastic with toughener

Disclosed is a thermoplastic composition including a) a recycled thermoplastic including polyamide resin, polyolefin and mineral filler, wherein the recycled thermoplastic includes at least 60 weight percent content of recycled polyamide selected from the group consisting of polyamide 66, polyamide 6, blends of polyamide 66 and polyamide 6, and copolymers having repeat units of polyamide 66 and polyamide 6; and at least 1 weight percent content of polyolefin; b) polymer toughener, wherein the polymer toughener includes at least 50 to 85 weight percent non-functionalized rubber and 15 to 50 weight percent of a functionalized rubber; and c) 10 to 50 reinforcing agent having a minimum aspect ratio of 3; and molded articles manufactured therefrom.

Polyamide resin-type composite material and method of producing same

A xylylenediamine-based polyamide resin/fiber composite material and molding are provided that do not exhibit a decline in properties under high temperatures and high humidities, and that exhibit a high elastic modulus and present little warping, and exhibit better recycle characteristics, a better moldability, and a better productivity than for thermosetting resins. The polyamide resin-type composite material comprises a fibrous material (B) impregnated with a polyamide resin (A) wherein at least 50 mole % of diamine structural units derived from xylylenediamine, and having a number-average molecular weight (Mn) of 6,000 to 30,000, and containing a component of a molecular weight of not more than 1,000 at 0.5 to 5 mass %.

Processes for recycling carpet and products of such processes

Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.

Film or plate

Film or plate containing a polyamide having monomer units of butane-1,4-diamine and monomer units of decanedioic acid (PA410). In a preferred embodiment the film or plate contains PA410 and at least one further polymer.

Polyamides with phosphorous and al-phosphonates

Described herein are thermoplastic molding materials including components:A) 10 to 98.5 wt % of a thermoplastic polyamide,B) 1 to 20 wt % of red phosphorus,C) 0.5 to 15 wt % of an aluminum salt of phosphonic acid,D) 0 to 55 wt % of a fibrous or particulate filler or mixtures thereof,E) 0 to 30 wt % of further additives,wherein the weight percentages of the components A) to E) sum to 100%.

POLYAMIDE-BASED RESIN FILM

The invention provides a biaxially oriented polyamide-based resin film, which contains a polyamide resin and 1 to 5% by mass of a polyamide-based block copolymer, and which is laminated with an adhesion-modifying layer containing a copolymerized polyester on at least one surface thereof. The polyamide-based block copolymer contains a hard constituent of a cyclic lactam residue having 4 to 10 carbon atoms and a soft constituent of a residue of a polyoxypropylene glycol or a polyoxytetramethylene glycol having a number average molecular weight of 500 to 3000. The content X of the hard constituent, the content Y of the soft constituent, and the number average molecular weight Mn of the soft constituent satisfy equations (1) X+Y=100 (parts by mass) and (2) 478.74×Mn≦Y≦93 (parts by mass). 1. A biaxially oriented polyamide-based resin film comprising a polyamide resin and 1 to 5% by mass of a polyamide-based block copolymer , and being laminated with an adhesion-modifying layer containing a copolymerized polyester on at least one surface thereof , wherein the polyamide-based block copolymer comprises a hard part of a cyclic lactam residue having 4 to 10 carbon atoms and a soft part of a residue of a polyoxypropylene glycol or a polyoxytetramethylene glycol having a number average molecular weight of 500 to 3000 , and the content X of the hard part , the content Y of the soft part , and the number average molecular weight Mn of the soft part satisfy the following equations (1) and (2):{'br': None, 'i': 'X+Y=', '100 (parts by mass)\u2003\u2003(1);'}{'br': None, 'i': ×Mn', '≦Y≦, 'sup': '−0.2989', '478.7493 (parts by mass)\u2003\u2003(2).'}2. The biaxially oriented polyamide-based resin film according to claim 1 , wherein the biaxially oriented polyamide-based resin film contains 0.05 to 0.30% by mass of ethylene bis(stearic acid amide) and 0.3 to 0.8% by mass of porous agglomerated silica having a fine pore volume of 1.0 to 1.8 ml/g and an average particle size of 2.0 to 7.0 ...

POLYAMIDE RESIN COMPOSITION, METHOD FOR PRODUCING POLYAMIDE RESIN COMPOSITION, AND MOLDED PRODUCT

The present invention provides a polyamide resin composition comprising (A) a polyamide resin, (B) an aluminic acid metal salt, and (C) an organic acid, wherein the content of the aluminic acid metal salt (B) is larger than 0.6 parts by mass based on 100 parts by mass of the polyamide resin (A). 1. A polyamide resin composition comprising(A) a polyamide resin,(B) an aluminic acid metal salt, and(C) an organic acid, whereina content of the aluminic acid metal salt (B) is larger than 0.6 parts by mass based on 100 parts by mass of the polyamide resin (A).2. The polyamide resin composition according to claim 1 , wherein the polyamide resin composition has a number-average molecular weight (Mn) of 10 claim 1 ,000 or higher.3. The polyamide resin composition according to claim 2 , wherein the polyamide resin composition has a moisture content of 1000 ppm or lower and has a peak at 0 ppm to 70 ppm in solid 27Al-NMR measurement.4. The polyamide resin composition according to claim 2 , wherein a water obtained by being impregnated in 2 g of the polyamide resin composition into 50 mL of distilled water and left for 24 hours under a condition of 80° C. has pH of 8 or lower.5. (canceled)6. (canceled)9. The polyamide resin composition according to claim 2 , wherein the organic acid (C) has a molecular weight (Mn) of 50≦Mn≦1000.10. (canceled)11. The polyamide resin composition according to claim 2 , wherein the organic acid (C) is an aromatic carboxylic acid.12. The polyamide resin composition according to claim 2 , wherein the polyamide resin composition has a weight-average molecular weight/number-average molecular weight (Mw/Mn) of 2.0 or higher claim 2 , and Mw/Mn of 3.0 or higher after heat aging at 120° C. for 1000 hours.13. The polyamide resin composition according to claim 2 , wherein in analysis based on a GPC-MALS-VISCO method claim 2 ,a molecule having a molecular weight of 100,000 or higher has a branched structure with one or more branch points, and the molecule ...

Compounded copolyamide powders

Compounded copolyamide powders, processes for preparation of compounded copolyamide powders, articles made therefrom and uses.

DRY-BLENDED MIXTURE

Disclosed is a dry-blend mixture including (A) a specified metaxylylene group-containing polyamide and (B) a specified aliphatic polyamide, wherein a mass ratio ((A)/(B)) of the metaxylylene group-containing polyamide (A) and the aliphatic polyamide (B) is in a range of from 55/45 to 65/35. 1. A dry-blend mixture , comprising:(A) a metaxylylene group-containing polyamide comprising a diamine unit including 80 mol % or more of a metaxylylenediamine unit based on the diamine unit and a dicarboxylic acid unit including 80 mol % or more of at least one unit selected from the group consisting of an α,ω-linear aliphatic dicarboxylic acid unit having 6 to 12 carbon atoms and an isophthalic acid unit based on the dicarboxylic acid unit, in which a molar ratio of the α,ω-linear aliphatic dicarboxylic acid unit and the isophthalic acid unit ((α,ω-linear aliphatic dicarboxylic acid unit)/(isophthalic acid unit)) is 80/20 to 100/0; and(B) an aliphatic polyamide comprising 75 to 95 mol % of an ε-aminocaproic acid unit and 25 to 5 mol % of a hexamethylene adipamide unit based on the total constitutional units of the aliphatic polyamide,wherein a mass ratio ((A)/(B)) of the metaxylylene group-containing polyamide (A) and the aliphatic polyamide (B) is in a range of from 55/45 to 65/35.2. The dry-blend mixture according to claim 1 , wherein a melting point peak (Tm(A claim 1 ,M)) of the metaxylylene group-containing polyamide (A) measured by differential scanning calorimetry for a molded product of the dry-blend mixture and a melting point (Tm(A)) of the metaxylylene group-containing polyamide (A) measured by differential scanning calorimetry for the metaxylylene group-containing polyamide (A) before dry-blending satisfy the following relation (1) claim 1 , and a melting point peak (Tm(B claim 1 ,M)) of the aliphatic polyamide (B) measured by differential scanning calorimetry for a molded product of the dry-blend mixture and a melting point (Tm(B)) of the aliphatic polyamide (B) ...

POLYARYLENE ETHER SULFONE COMPRISING NAPHTHALIC ACID ANHYDRIDE ENDGROUPS

A polyarylene ether sulfone comprising endgroups of formula (I), a process for its manufacture, a molding composition comprising the polyarylene ether sulfone, use of the molding composition and fiber, film or shaped article produced using the molding composition. 2: The polyarylene ether sulfone of claim 1 , comprising at least 15% of the endgroups.3: The polyarylene ether sulfone of claim 1 , comprising from 25% to 90% of the endgroups.8. (canceled)9: A molding composition comprising the polyarylene ether sulfone of .10: The molding composition of comprising(A) from 5 to 95% by weight of the polyarylene ether sulfone comprising endgroups of formula I,(B) from 5 to 95% by weight of a polyamide, andoptionally a further component,wherein total proportions of all components by weight is 100%, based on a thermoplastic molding composition.11: The molding composition of comprising(A) from 30 to 75% by weight of the polyarylene ether sulfone, and(B) from 25 to 70% by weight of the polyamide,12: The molding composition of claim 9 , comprising(B) polyamide PA 9T, PA 9T-co-8.1T, PA 6T6I, PA 6T66, PA 66T or a mixture thereof.13: The molding composition of claim 9 , further comprising(C) from 10 to 70% by weight of a polyarylene ether sulfone having no endgroups of formula I.14: The molding composition of claim 9 , further comprising(D) from 10 to 62.5% by weight of a fibrous or particulate filler.15. (canceled)16: A fiber claim 9 , film or shaped article comprising the molding composition of . The present invention relates to polyarylene ether sulfones having anhydride endgroups.Polyarylene ethers are classified as high-performance thermoplastics. Polyarylene ethers may have—depending on how they are produced—for instance hydroxy, halogen, amino, epoxy or anhydride endgroups. EP 840 758 A discloses polyarylene ethers with phthalic acid anhydride endgroups. These are obtained by reacting a hydroxy endgroup containing polyarylene ether with halogen substituted phthalic acid ...

RESIN POWDER FOR PRODUCING THREE-DIMENSIONAL OBJECT, THREE-DIMENSIONAL OBJECT PRODUCING METHOD, AND THREE-DIMENSIONAL OBJECT PRODUCING APPARATUS

Provided is a resin powder for producing a three-dimensional object, wherein the resin powder has a number-average equivalent circle diameter of 10 micrometers or greater but 150 micrometers or less, and wherein a median in an equivalent circle diameter-based particle size distribution of the resin powder is higher than the average equivalent circle diameter. 1. A resin powder for producing a three-dimensional object ,wherein the resin powder has a number-average equivalent circle diameter of 10 micrometers or greater but 150 micrometers or less, andwherein a median in an equivalent circle diameter-based particle size distribution of the resin powder is higher than the average equivalent circle diameter.2. The resin powder for producing a three-dimensional object according to claim 1 ,wherein particles of the resin powder comprise columnar particles.3. The resin powder for producing a three-dimensional object according to claim 2 ,wherein the columnar particles have a cylindrical length of 10 micrometers or greater but 150 micrometers or less and a cylindrical diameter of 10 micrometers or greater but 150 micrometers or less.4. The resin powder for producing a three-dimensional object according to claim 1 ,wherein the resin powder has an average circularity of 0.75 or higher but 0.90 or lower.5. The resin powder for producing a three-dimensional object according to claim 1 , the resin powder comprisinga crystalline resin,wherein the crystalline resin comprises at least one selected from the group consisting of polyolefin, polyamide, polyester, polyaryl ketone, and polyphenylene sulfide.6. The resin powder for producing a three-dimensional object according to claim 5 ,wherein the polyester comprises at least one selected from the group consisting of polyethylene terephthalate, polybutadiene terephthalate, and polylactic acid.7. A three-dimensional object producing method comprising:forming a layer that comprises a resin powder for producing a three-dimensional object ...

Fiber-reinforced thermoplastic-resin base and molded article obtained therefrom

A fiber-reinforced thermoplastic-resin base includes continuous reinforcing fibers aligned in parallel to each other and a thermoplastic resin is impregnated thereinto, wherein the base has a fiber volume content of 40-65 vol % and a dispersion parameter D of the fibers, determined by (i)-(iv), of 90% or more: (i) a cross-section of the fiber-reinforced thermoplastic-resin base that is perpendicular to the alignment direction of the reinforcing fibers is divided into a plurality of sections, and one of the sections is photographed, (ii) the photograph image of the section is divided into a plurality of square units each having a one-side length t, (iii) a dispersion parameter d is calculated, (iv) with respect to other sections, (i) to (iii) are repeatedly performed, and an average value of dispersion parameters d of the plurality of sections is dispersion parameter D.

SHORT DIAMINE-BASED SEMI-CRYSTALLINE POLYAMIDE COMPOSITION HAVING A HIGH GLASS TRANSITION TEMPERATURE FOR A THERMOPLASTIC MATERIAL, PRODUCTION METHOD THEREOF AND USES OF SAME

The invention relates to a composition for a thermoplastic material comprising: 2. The composition according to claim 1 , wherein said semi-crystalline polyamide polymer has a melting temperature Tm from 290° C. to 340° C. claim 1 , as determined according to standard ISO 11357-3 (2013).3. The composition according to claim 1 , wherein said semi-crystalline polyamide polymer has a glass transition temperature Tg>130° C. determined according to standard ISO 11357-2:2013.4. The composition according to claim 1 , wherein said semi-crystalline polyamide polymer has a difference between the melting temperature and the crystallization temperature Tm−Tc<40° C. claim 1 , determined according to standard ISO 11357-3:2013.5. The composition according to claim 1 , wherein the enthalpy of crystallization of the semi-crystalline polyamide polymer claim 1 , measured by differential scanning calorimetry (DSC) according to standard ISO 11357-3:2013 claim 1 , is greater than 40 J/g.6. The composition according to claim 1 , wherein the BAC is 1 claim 1 ,3 BAC.7. The composition according to claim 1 , wherein the BAC is 1 claim 1 ,3 BAC and XT is chosen from 4 T claim 1 , 5 T claim 1 , or 6 T.8. The composition according to claim 1 , wherein XT is 10 T claim 1 , 10 corresponding to 1 claim 1 ,10 decanediamine.9. The composition according to claim 1 , wherein the sum of the monomers that replace terephthalic acid claim 1 , BAC and X is equal to 0.10. The composition according to claim 1 , wherein said composition is a non-reactive composition according to b).11. The composition according to claim 1 , wherein said polyamide composition is a reactive prepolymer composition according to a) and precursor of said polyamide polymer of said matrix of the thermoplastic material.12. The composition according to claim 1 , wherein it further comprises at least one additive.13. The composition according to claim 12 , wherein the additive is selected from the group consisting of an antioxidant ...

Graphene-Reinforced Polymer Matrix Composites

A graphene-reinforced polymer matrix composite comprising an essentially uniform distribution in a thermoplastic polymer of about 10% to about 50% of total composite weight of particles selected from graphite microparticles, single-layer graphene nanoparticles, multi-layer graphene nanoparticles, and combinations thereof, where at least 50 wt % of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction. The graphene-reinforced polymer matrix is prepared by a method comprising (a) distributing graphite microparticles into a molten thermoplastic polymer phase comprising one or more matrix polymers; and (b) applying a succession of shear strain events to the molten polymer phase so that the matrix polymers exfoliate the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction. 1. A graphene-reinforced polymer matrix composite comprising a uniform distribution in a thermoplastic polymer matrix of up to about 50% of total composite weight of particles selected from the group consisting of graphite microparticles , single-layer graphene nanoparticles , multi-layer graphene nanoparticles , and combinations of two or more thereof wherein:said particles comprise single- and/or multi-layer graphene nanoparticles mechanically exfoliated in said polymer that are less than 50 nanometers thick along the c-axis direction; andsaid thermoplastic polymer is selected from the group consisting of polyamides, polystyrenes, polyphenylene sulfides, high-density polyethylenes, ABS polymers, polyacrylonitriles, polylactic acids, polyglycolic acids, polylactic-glycolic acid copolymers (PLGA) and mixtures of two or more thereof,wherein said graphene-reinforced polymer matrix composite comprises fractures of said single- and multi-layer ...

COPOLYAMIDE COMPOSITIONS WITH REDUCED CRYSTALLIZATION RATES

A copolyamide composition comprising a statistical copolyamide containing 70-99 wt % of diamine and dicarboxylic acid repeat units and 1-30 wt % of lactam or AA-BB repeat units, whereby incorporation of the comonomer lactam or AA-BB unit reduces the crystallization rate (longer crystallization times) while maintaining (1) high melting point, (2) low potential plate out, (3) low oxygen permeation, (4) high tensile strength and (5) puncture/tear resistance. 127-. (canceled)28. A copolyamide composition for film applications , the copolyamide composition comprising:60-99 mol % of a first repeating diamine and dicarboxylic acid unit and1-40 mol % of a repeating lactam or a second repeating diamine and dicarboxylic acid unit, wherein the first repeating diamine and dicarboxylic acid unit is different from the second repeating diamine and dicarboxylic acid unit; a number average molecular weight Mn of greater than 18,000 g/mol,', 'a relative viscosity according to ASTM 0789 (9.34) of 60-350, and', 'a melting point greater than 220° C., 'wherein the copolyamide composition has29. The copolyamide composition according to claim 28 , wherein the first repeating diamine and dicarboxylic acid unit is chosen from PA66 claim 28 , PA69 claim 28 , and PA6 claim 28 ,10.30. The copolyamide composition according to claim 28 , wherein the second repeating diamine and dicarboxylic acid unit is chosen from PA6 claim 28 , PA69 claim 28 , PA6 claim 28 ,10 claim 28 , PA6 claim 28 ,I claim 28 , PA6 claim 28 ,12 claim 28 , PA6 claim 28 ,18 claim 28 , PA9 claim 28 ,6 claim 28 , PA10 claim 28 ,6.31. The copolyamide composition according to claim 28 , wherein the copolyamide composition is a statistical copolymer chosen from PA66-s-6; PA69-s-6; PA66-s-6 claim 28 ,9;PA66-s-6,10; PA66-s-6,12; PA66-s-6,18; PA66-s-6,I; PA66-s-9,6; PA66-s-10,6; PA69-s-6,10; PA69-s-PA6,I; PA69-s-6,12; PA69-s-6,18; PA69-s-9,6; PA69-s-10,6; and PA6,10-s-6,I.32. The copolyamide composition according to claim 28 , wherein ...

COMPOSITIONS HAVING IMPROVED TRIBOLOGICAL PROPERTIES, METHODS OF MANUFACTURE THEREOF AND ARTICLES COMPRISING THE SAME

Disclosed herein is a composition comprising a crosslinked organic polymer; wherein the composition has a coefficient of friction that is in a range of ±30% of a coefficient of friction for a composition comprising the same organic polymer that is not crosslinked; and wherein the composition has a lower K factor than a K factor of the composition comprising the same organic polymer that is not crosslinked; the coefficient of friction and the K factor being measured in a thrust washer apparatus as per ASTM D-3702, where the counter stationary surface in the thrust washer apparatus comprises carbon steel having a Rockwell C hardness of 18 to 22 and a 12 to 16 micro-inch surface finish. 1. A composition comprising:a crosslinked organic polymer; wherein the composition does not undergo catastrophic failure for a period of about 1 to about 48 hours when tested in a thrust washer apparatus as per ASTM D-3702, where the counter stationary surface in the thrust washer apparatus comprises carbon steel having a Rockwell C hardness of 18 to 22 and a 12 to 16 micro-inch surface finish, where the composition is subjected to a pressure of about 2 to about 400 pounds per square inch and a linear velocity of about 20 to about 400 feet per minute during the test in the thrust washer apparatus.2. The composition of claim 1 , where the composition does not undergo catastrophic failure for a period of about 16 to about 30 hours when the composition is subjected to a pressure of about 20 to about 80 pounds per square inch and a linear velocity of about 40 to about 200 feet per minute during the test in the thrust washer apparatus.3. The composition of claim 1 , where the composition does not undergo catastrophic failure for a period of about 20 to about 28 hours when the composition is subjected to a pressure of about 40 to about 60 pounds per square inch and a linear velocity of about 100 to about 150 feet per minute during the test in the thrust washer apparatus.4. The composition of ...

Periodic structured organic films

An ordered structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

SEMIAROMATIC POLYAMIDE RESIN COMPOSITION AND FORMED BODY OBTAINED BY FORMING SAME

Disclosed is a semiaromatic polyamide resin composition including a semiaromatic polyamide (A) and a polyhydric alcohol (B), wherein a mass ratio (A/B) between the semiaromatic polyamide (A) and the polyhydric alcohol (B) is 99.95/0.05 to 90/10; and the semiaromatic polyamide (A) includes as constituent components thereof an aromatic dicarboxylic acid component and an aliphatic diamine component, and has a melting point of 300 to 350° C. 1. A semiaromatic polyamide resin composition comprising a semiaromatic polyamide (A) and a polyhydric alcohol (B) , wherein a mass ratio (A/B) between the semiaromatic polyamide (A) and the polyhydric alcohol (B) is 99.95/0.05 to 90/10; andthe semiaromatic polyamide (A) includes as constituent components thereof an aromatic dicarboxylic acid component and an aliphatic diamine component, and has a melting point of 300 to 350° C.2. The semiaromatic polyamide resin composition according to claim 1 , wherein the sun mc polyamide (A) includes as the constituent component thereof a monocarboxylic acid component claim 1 , and a content of the monocarboxylic acid component is 0.3 to 4.0 mol % claim 1 , in relation to a MIL Ole of monomer components constituting claim 1 , the semiaromatic polyamide (A).3. The semiaromatic polyamide resin composition according to claim 1 , wherein the polyhydric alcohol (B) is dipentherythritol.4. The semiaromatic polyamide resin composition according to claim 1 , wherein the polyhydric alcohol (B) forms at least one ester bond with a carboxylic acid claim 1 , leaving two or more hydroxyl groups of the polyhydric alcohol.5. The semiaromatic polyamide resin composition according to claim 1 , further comprising 5 to 200 parts by mass of a fibrous reinforcing material (C) in relation to 100 parts by mass of a total amount of the semiaromatic polyamide (A) and the polyhydric alcohol (B).6. The semiaromatic polyamide resin composition according to claim 5 , wherein the fibrous reinforcing material (C) is treated ...

Process For Preparing A Reinforced And Reactive Thermoplastic Composition, And this Composition

A process for preparing a reinforced and reactive thermoplastic composition having a continuous phase based on a thermoplastic polymer and dispersed therein is a discontinuous phase based on a reactive reinforcing agent that may be immiscible with the thermoplastic polymer is provided. A composition obtained by this process is also provided. The reinforcing agent is selected from the group consisting of epoxy resins, polyorganosiloxanes having SiH functional group(s), diisocyanates or polyisocyanates and mixtures thereof, comprises a grafting, a branching and/or a crosslinking, that are carried out in situ, by reactive compounding of these phases with a shear rate greater than 10s, of the reinforcing agent onto the chain of the thermoplastic polymer, so that the discontinuous phase is dispersed homogeneously in the continuous phase in the form of nodules having a number-average size of less than 5 μm. 1. A process for preparing a reactive thermoplastic composition comprising a continuous phase based on at least one thermoplastic polymer and dispersed in which is a discontinuous phase based on at least one reactive reinforcing chemical agent that may be immiscible with said at least one thermoplastic polymer and that is selected from the group consisting of epoxy resins , polyorganosiloxanes having SiH functional group(s) , diisocyanates or polyisocyanates and mixtures thereof , wherein this process comprises a grafting , a branching and/or a crosslinking , that are carried out in situ , by a reactive compounding of these phases with a shear rate greater than 10s , of said at least one reinforcing agent onto the chain of said at least one thermoplastic polymer , so that said discontinuous phase is dispersed in said continuous phase in the form of nodules having a number-average size of less than 5 μm with a maximum standard deviation of 0.5 μm , and wherein ,during this reactive compounding, at least one compatibilizing agent is used between these phases, which is ...

Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A resin powder for solid freeform fabrication includes a particle having a pillar-like form, wherein the ratio of the height of the particle to the diameter or the long side of the bottom of the particle is 0.5 to 2.0, the particle has a 50 percent cumulative volume particle diameter of from 5 to 200 μm, and the ratio (Mv/Mn) of the volume average particle diameter (Mv) to the number average particle diameter (Mn) of the particle is 2.00 or less.

SEPARATION COMPOSITE MEMBRANE, SEPARATION MEMBRANE MODULE, SEPARATOR, COMPOSITION FOR FORMING SEPARATION MEMBRANE, AND METHOD OF PRODUCING SEPARATION COMPOSITE MEMBRANE

A separation composite membrane, including a porous support layer, and a separation layer provided on the porous support layer and contains the following polymer a1 and b1; a separation membrane module; a separator; and a composition for forming a membrane suitable for preparing the separation composite membrane. 1. A separation composite membrane comprising:a porous support layer; anda separation layer which is provided on the porous support layer and contains the following polymer a1 and the following polymer b1.polymer a1: a polymer in which a ratio of a permeation rate of carbon dioxide to a permeation rate of methane is 15 or greater and the permeation rate of the carbon dioxide is smaller than that in the polymer b1 and which has a solubility parameter of 21 or greaterpolymer b1: a polymer in which a permeation rate of carbon dioxide is 200 GPU or greater and a ratio of the permeation rate of the carbon dioxide to a permeation rate of methane is smaller than that in the polymer a1 and which has a solubility parameter of 16.5 or less2. The separation composite membrane according to claim 1 ,wherein the separation composite membrane includes the porous support layer, a layer a2 containing the polymer a1, and a layer b2 containing the polymer b1 in this order.3. The separation composite membrane according to claim 1 ,wherein the separation layer is formed using a coating solution obtained by dissolving the polymer a1 and the polymer b1 in a solvent.4. The separation composite membrane according to any one of claim 1 ,wherein a content of the polymer a1 is smaller than a content of the polymer b1 in the separation layer.5. The separation composite membrane according to any one of claim 1 ,wherein a proportion of the content of the polymer a1 in a total content of the polymer a1 and the polymer b1 in the separation layer is 40% by mass or less.6. The separation composite membrane according to claim 5 ,wherein the proportion is 20% by mass or less.7. The separation ...

AQUEOUS DISPERSION, METHOD FOR MANUFACTURING THE SAME, AND IMAGE FORMING METHOD

Provided are an aqueous dispersion including a microcapsule that has a shell having a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and has a core, in which at least one of the shell or the core has a polymerizable group, including a dispersant that has at least one bond selected from a urethane bond or a urea bond and a hydrophilic group, and including water; a method for manufacturing the aqueous dispersion; and an image forming method using the aqueous dispersion. 1. An aqueous dispersion comprising:a microcapsule comprising: a shell having a three-dimensional cross-linked structure comprising at least one bond selected from a urethane bond or a urea bond; and a core, at least one of the shell or the core having a polymerizable group;a dispersant comprising: at least one bond selected from a urethane bond or a urea bond; and a hydrophilic group; andwater.2. The aqueous dispersion according to claim 1 , wherein at least one hydrophilic group of the dispersant is an anionic group.3. The aqueous dispersion according to claim 2 , wherein the anionic group is at least one of a carboxy group or a salt of a carboxy group.6. The aqueous dispersion according to claim 1 , wherein the dispersant has a value (U) claim 1 , that is obtained by the following Equation (U) claim 1 , that is from 1 mmol/g to 10 mmol/g:{'br': None, 'i': 'U', 'Value ()=(total number of urethane bonds and urea bonds contained in one molecule of dispersant/molecular weight of dispersant)×1000.\u2003\u2003Equation (U)7. The aqueous dispersion according to claim 1 , wherein the dispersant comprises an anionic group as the hydrophilic group claim 1 , and a value (a) claim 1 , that is a millimolar number of the anionic group included in 1 g of the dispersant claim 1 , is from 0.3 mmol/g to 3.5 mmol/g.8. The aqueous dispersion according to claim 1 , wherein a ratio of a mass content of the dispersant with respect to a mass content of a ...

PROCESS AND SYSTEM FOR RECOVERING POLYAMIDES AND POLYMERS FROM COMPOSITE ARTICLES

A process and system for recovering at least one polyamide from one or more composite materials is provided. The process comprises dissolving the at least one polyamide present in the one or more composite materials in a solvent. The process further comprises separating at least one undissolved polymer from the solution by filtration. Furthermore, the process comprises evaporating part of the solvent from the solution containing the at least one polyamide. Also, the process comprises neutralizing, using an alkali, the solvent remaining with the at least one polyamide. In addition, the process comprises washing, filtering and drying the mixture comprising the at least one polyamide to obtain polyamide. 1. A process for recovering at least one polyamide from one or more composite materials , the process comprising:dissolving the at least one polyamide present in the one or more composite materials in a solvent;separating at least one undissolved polymer from the solution by filtration;evaporating part of the solvent from the solution containing the at least one polyamide;neutralizing, using an alkali, the solvent remaining with the at least one polyamide; andwashing, filtering and drying the mixture to obtain polyamide.2. A process for recovering at least one of a polyamide and a polymer from one or more composite materials , the process comprising:dissolving the at least one polyamide present in the one or more composite materials in a solvent;separating at least one undissolved polymer from the solution by filtration;evaporating part of the solvent from the solution containing the at least one polyamide;neutralizing separately, using an alkali, the solvent remaining with the at least one polyamide and with the separated at least one polymer; andwashing, filtering and drying separately the mixtures comprising the at least one polyamide and the at least one polymer to obtain polyamide and polymer.3. The process of claim 1 , wherein the one or more composite materials ...

THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND MOLDED BODY

The purpose of the present invention is to provide: a thermoplastic resin composition which exhibits excellent rigidity, while having excellent impact strength characteristics; and a method for producing the thermoplastic resin composition. This thermoplastic resin composition, wherein a polyolefin resin contains a polyamide resin that is dispersed therein, is characterized in that: the thermoplastic resin composition is obtained by melting and kneading a polyolefin resin and a mixed resin that is obtained by melting and kneading a polyamide resin and a compatibilizer; and the compatibilizer is a modified elastomer that is obtained by providing an elastomer (such as an olefin-based thermoplastic elastomer or a styrene-based thermoplastic elastomer) with a reactive group that is reactive with the polyamide resin. The present invention also relates to a thermoplastic resin composition which is obtained by melting and kneading from 1% by mass to 80% by mass (inclusive) of a plant-derived polyamide resin such as polyamide 11, from 5% by mass to 75% by mass (inclusive) of a polyolefin resin and from 1% by mass to 30% by mass (inclusive) of a compatibilizer that is an olefin-based thermoplastic elastomer that is modified with an acid. 110.-. (canceled)11. A plant-derived polyamide resin-containing thermoplastic resin composition that is obtained by molten blending a polyamide resin , a polyolefin resin that does not comprise a reactive group that reacts with the polyamide resin , and a compatibilizer , wherein the polyamide resin is at least one plant-derived polyamide resin selected from the group consisting of polyamide 11 , polyamide 610 , polyamide 614 , polyamide 1010 , and polyamide 10T ,the content of the polyamide resin is from 1% to 80% by mass based on 100% by mass of the total of the polyamide resin, the polyolefin resin, and the compatibilizer,the content of the polyolefin resin is from 5% to 75% by mass based on 100% by mass of the total of the polyamide ...

POLYMER-GRAPHENE NANOCOMPOSITES

Provided herein is technology relating to polymer-graphene nanocomposites and particularly, but not exclusively, to methods for producing polymer-graphene nanocomposites using master batches comprising graphene and a polymer or polymer precursor. The resulting polymer-graphene nanocomposites comprise a high degree of exfoliation and dispersion of graphene nanoplatelets within the polymer matrix. 1. A master batch composition for making a polymer nanocomposite , the master batch composition comprising a polymer and at least 15% by weight graphene.24-. (canceled)5. The master batch composition of wherein the graphene is pristine graphene.6. The master batch composition of wherein the graphene is exfoliated graphene.7. The master batch composition of wherein the polymer is a poly(vinyl lactam) claim 1 , a polyacrylamide claim 1 , a thermoplastic polymer claim 1 , thermoset polymer claim 1 , polyethylene polymer claim 1 , polypropylene polymer claim 1 , polycarbonate polymer claim 1 , unsaturated polyester claim 1 , polyvinylchloride claim 1 , or epoxy vinyl ester claim 1 , or epoxy.8. (canceled)9. The master batch composition of comprising graphene and a poly(vinylpyrrolidone) in a weight ratio of 1:1 to 1:10.10. (canceled)11. The master batch composition of comprising graphene and a thermoplastic polymer in a weight ratio of 1:1 to 1:5.12. The master batch composition of wherein the average thickness of the graphene is less than 10 atomic layers claim 1 , a minimum of 5% of the graphene is single atomic layer graphene claim 1 , and the oxygen content of the graphene is less than 1%.1314-. (canceled)15. The master batch composition of wherein less than 10% of the graphene nanoplatelets have a maximum diameter of less than 0.5 microns.16. The master batch composition of comprising a poly(vinylpyrrolidone) that has a number average molecular weight of less than or equal to approximately 10 claim 1 ,000 u.1720-. (canceled)21. A method of making a master batch composition ...

POLYAMIDE RESIN COMPOSITION AND MOLDED ARTICLE USING SAME

The present invention provides a polyamide resin composition containing a polyamide resin (A) in which a diamine constituent unit thereof includes a constituent unit derived from a xylylenediamine (a-1), and a dicarboxylic acid constituent unit thereof includes a constituent unit derived from an α,ω-linear aliphatic dicarboxylic acid (a-2) having from 4 to 20 carbon atoms; and a polyether polyamide (B) in which a diamine constituent unit thereof includes constituent units derived from a polyether diamine compound (b-1) represented by a specified structural formula and a xylylenediamine (b-2), and a dicarboxylic acid constituent unit thereof includes a constituent unit derived from an α,ω-linear aliphatic dicarboxylic acid (b-3) having from 4 to 20 carbon atoms. 2. The polyamide resin composition according to claim 1 , having a flexural modulus claim 1 , as measured in conformity with JIS K7171 claim 1 , of 3 claim 1 ,300 MPa or more and a Charpy impact strength claim 1 , as measured in conformity with ISO179-1 claim 1 , of 75 kJ/mor more.3. The polyamide resin composition according to claim 1 , wherein a proportion of the constituent unit derived from the polyether diamine compound (b−1) in the diamine constituent unit of the polyether polyamide (B) is 1 to 50% by mole.4. The polyamide resin composition according to claim 1 , comprising 5 to 50% by mole of the polyether polyamide (B) in the polyamide resin composition.5. The polyamide resin composition according to claim 1 , wherein the xylylenediamine (b-2) is m-xylylenediamine claim 1 , p-xylylenediamine claim 1 , or a mixture thereof claim 1 , and the α claim 1 ,ω-linear aliphatic dicarboxylic acid (b-3) is adipic acid claim 1 , sebacic acid claim 1 , or a mixture thereof.6. The polyamide resin composition according to claim 1 , wherein the xylylenediamine (a-1) is m-xylylenediamine claim 1 , p-xylylenediamine claim 1 , or a mixture thereof claim 1 , and the α claim 1 ,ω-linear aliphatic dicarboxylic acid (a-2) ...

Recycling and reuse of sulfonated polymer material in additive manufacturing

A method of recycling and reusing a tap water-soluble sulfonated polymer material from a structural component made using an additive manufacturing process comprises dissolving the structural component in water to disperse the sulfonated polymer material into the water. The sulfonated polymer material is precipitated from the water and recovered; then dried and reformed into a form suitable for subsequent use as a consumable feedstock in a subsequent additive manufacturing process.

POLYARYLENE ETHER SULFONE COMPRISING NAPHTHALIC ACID ANHYDRIDE ENDGROUPS

A polyarylene ether sulfone contains endgroups of formula (I), 116-. (canceled)18: The molding composition according to claim 17 , comprising:from 30 to 75% by weight of the at least one polyarylene ether sulfone, andfrom 25 to 70% by weight of the at least one polyamide.19: The molding composition according to claim 17 , wherein the at least one polyamide is selected from the group consisting of PA 9T claim 17 , PA 9T-co-8.1T claim 17 , PA 6T6I claim 17 , PA 6T66 claim 17 , PA 66T claim 17 , and a mixture thereof.20: The molding composition according to claim 17 , wherein the at least one further component is at least one polyarylene ether sulfone having no endgroups of formula (I) claim 17 ,wherein the molding composition comprises 10 to 70% by weight of the at least one polyarylene ether sulfone having no endgroups of formula (I).21: The molding composition according to claim 17 , wherein the at least one further component is at least one fibrous or particulate filler claim 17 , andwherein the molding composition comprises 10 to 62.5% by weight of the at least one fibrous or particulate filler.22: A fiber claim 17 , film claim 17 , or shaped article claim 17 , comprising the molding composition according to .23: The molding composition according to claim 17 , wherein the at least one polyarylene ether sulfone comprises at least 15% of the endgroups of formula (I).24: The molding composition according to claim 17 , wherein the at least one polyarylene ether sulfone comprises from 25% to 90% of the endgroups of formula (I). The present invention relates to polyarylene ether sulfones having anhydride endgroups.Polyarylene ethers are classified as high-performance thermoplastics. Polyarylene ethers may have—depending on how they are produced—for instance hydroxy, halogen, amino, epoxy or anhydride endgroups. EP 840 758 A discloses polyarlyene ethers with phthalic acid anhydride endgroups. These are obtained by reacting a hydroxy endgroup containing polyarylene ether ...

MOLDED ARTICLE AND METHOD FOR PRODUCTION THEREOF

Disclosed is a molded article obtained by molding a thermoplastic resin composition, wherein the thermoplastic resin composition contains a thermoplastic resin (A) and an inorganic filler (B); the content of the inorganic filler (B) is 60 to 150 parts by mass based on 100 parts by mass of the thermoplastic resin (A); the content of a plate-shaped inorganic filler (b1) having an average thickness of 4.0 μm or less and an aspect ratio of 130 or more in the inorganic filler (B) is 35 to 100% by mass; and a thickness of the thinnest part thereof is 2.0 mm or less. 1: A molded article obtained by molding a thermoplastic resin composition , whereinthe thermoplastic resin composition comprises a thermoplastic resin (A) and an inorganic filler (B);a content of the inorganic filler (B) is from 60 to 150 parts by mass based on 100 parts by mass of the thermoplastic resin (A);a content of a plate-shaped inorganic filler (b1) having an average thickness of 4.0 μm or less and an aspect ratio of 130 or more in the inorganic filler (B) is 35 to 100% by mass; anda thickness of a thinnest part thereof is 2.0 mm or less.2: The molded article according to claim 1 , wherein a melting point or a glass transition temperature of the thermoplastic resin (A) is 130° C. or higher.3: The molded article according to claim 1 , wherein the thermoplastic resin (A) is at least one selected from the group consisting of a liquid crystal polymer claim 1 , a polycarbonate resin claim 1 , and a polyamide resin.4. The molded article according to wherein the thermoplastic resin (A) is a semi-aromatic polyamide resin.5: The molded article according to claim 1 , wherein the plate-shaped inorganic filler (b1) is at least one selected from the group consisting of glass flakes and mica.6: The molded article according to claim 1 , wherein the inorganic filler (B) further comprises 10 to 65% by mass of an inorganic filler (b2) other than the plate-shaped inorganic filler (b1) and having an average major axis of ...

WATER DISPERSIBLE POLYMER FOR USE IN ADDITIVE MANUFACTURING

A water dispersible sulfo-polyamide is configured as a filament for use as an extrudable support material in the additive manufacture of a part comprising a non water dispersible polymer. The water dispersible sulfo-polyamide is a reaction product of a sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer. 1. A water dispersible sulfo-polyamide configured as a filament for use as an extrudable support material in the additive manufacture of a part comprising a non water dispersible polymer , wherein the water dispersible sulfo-polyamide is a reaction product of a sulfo monomer , the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the part comprising the non water dispersible polymer.2. The water dispersible sulfo-polymer of claim 1 , wherein the water dispersible sulfo-polymer has a heat deflection temperature within ±20° C. of the heat deflection temperature of the non water dispersible polymer.3. The water dispersible sulfo-polymer of claim 1 , wherein the water dispersible polymer has a glass transition temperature within ±20° C. of the glass transition temperature of the non water dispersible polymer.4. The water dispersible polymer of claim 1 , and further comprising the reaction product of a condensation reaction.5. The water dispersible polymer of claim 1 , and further comprising approximately 18 to 40% metal sulfoisophthalic monomer.6. The water dispersible polymer of claim 6 , and further comprising approximately 20 to 30% metal sulfoisophthalic monomer.7. The water dispersible polymer of claim 1 , wherein the metal sulfo monomer is a sodio sulfo monomer or a lithium sulfo monomer.8. The water dispersible polymer of claim 3 , wherein the water dispersible polymer is characterized by a glass transition temperature of at least approximately 40° C.9. ...

FIBER REINFORCED POLYMER COMPOSITION

The invention relates to a fiber reinforced thermoplastic molding composition comprising a thermoplastic polymer and reinforcing fibers, wherein the composition comprises (i) a thermoplastic polymer selected from the group consisting of polyesters, polyamides, polycarbonates, polyphenylene sulphides (PPS), polyphenylene ethers (PPO), polyetheretherketones (PEEK), polyaryletherketones (PAEK), polyamidimides (PAI), polyetherimides (PEI) and liquid crystal polymers (LCPs), and combinations thereof and (ii) silicon-boron glass fibers consisting predominantly of silicon dioxide (SiO) and boron trioxide (BO). 1. Composition comprising a thermoplastic polymer and glass fibers , wherein the composition comprises(i) a thermoplastic polymer selected from the group consisting of polyesters (PES), polyamides (PA), polycarbonates (PC), polyphenylene sulphides (PPS), polyphenylene ethers (PPO), polyetheretherketones (PEEK), polyaryletherketones (PAEK), polyamidimides (PAI), polyetherimides (PEI) and liquid crystal polymers (LCPs), and combinations thereof;{'sub': 2', '2', '3, '(ii) at least 22 wt. % of silicon-boron glass fibers comprising predominantly silicon dioxide (SiO) and boron trioxide (BO); and'}(iii) 0-7 wt. % of halogen free flame retardant, wherein the weight percentages (wt. %) are relative to the total weight of the composition.2. Composition according to claim 1 , wherein the thermoplastic polymer comprises a polyamide or a semi-crystalline polyester claim 1 , or a combination thereof.3. Composition according to claim 1 , wherein the silicon-boron glass fibers comprise silicon dioxide and boron trioxide in a combined amount of at least 90 wt. % claim 1 , relative to the weight of the silicon-boron glass fibers.4. Composition according to claim 3 , wherein the silicon-boron glass fibers consist of: (a) 65-85 wt. % SiO; (b) 15-30 wt. % BO; (c) 0-4 wt. % sodium oxide (NaO) or potassium oxide (KO) claim 3 , or a combination thereof; and (d) 0-4 wt. % other components; ...

THERMOPLASTIC RESIN SHEET, LAMINATED SHEET, AND MOLDED OBJECT

Disclosed herein are a thermoplastic resin sheet having excellent mechanical strength and excellent conformability during molding, a laminated sheet using such a thermoplastic resin sheet, and a molded body. The thermoplastic resin sheet includes a thermoplastic resin containing a polyolefin resin, a polyamide resin, and a compatibilizer, wherein the compatibilizer is a modified elastomer having a reactive group that reacts with the polyamide resin. The laminated sheet includes a base layer containing a polyolefin resin and the thermoplastic resin sheet bonded to one surface of the base layer. The molded body includes a base body containing a polyolefin resin and the thermoplastic resin sheet or the laminated sheet bonded to one surface of the base body. 1. A thermoplastic resin sheet comprising a thermoplastic resin containing a polyolefin resin , a polyamide resin , and a compatibilizer , whereinthe compatibilizer is a modified elastomer having a reactive group that reacts with the polyamide resin.2. The thermoplastic resin sheet according to claim 1 , which has a continuous phase (A) containing the polyolefin resin anda dispersed phase (B) dispersed in the continuous phase (A) and containing the polyamide resin and the modified elastomer.3. The thermoplastic resin sheet according to claim 2 , wherein the dispersed phase (B) has a continuous phase (B) containing the polyamide resin and{'sub': 2', '1, 'a fine dispersed phase (B) dispersed in the continuous phase (B) and containing the modified elastomer.'}4. The thermoplastic resin sheet according to claim 1 , which is a melt-kneaded product of a melt-kneaded product of the polyamide resin and the modified elastomer and the polyolefin resin.5. The thermoplastic resin sheet according to claim 1 , wherein{'b': '6', 'the polyamide resin has a structure in which a hydrocarbon group between adjacent amide bonds in a main chain has a linear chain of or more carbon atoms.'}6. The thermoplastic resin sheet according to ...

FLAME-RESISTANT POLYAMIDE, METHOD FOR THE PRODUCTION OF SAID FLAME-RESISTANT POLYAMIDE, AND USE OF SAID FLAME-RESISTANT POLYAMIDE.

The invention relates to a flame-resistant polyamide as a product of the condensation of dicarboxylic acids with diamines and with a flame-retardant phosphorus compound, which flame-resistant polyamide is characterized in that the flame-resistant polyamide FR contains, in the main chain thereof, phosphinic acid amide structural units of formula (II) —PO(R)—NH— (II) in addition to the amide structural units of formula (I) —CO—NH— (I), in which formula (II) Rmeans hydrogen or an organic group and can differ in the individual phosphinic acid amide structural units within the main chain, and that the polyamide FR achieves a relative viscosity, measured as a 1% solution in 96% sulfuric acid at 25° C., of at least 2.0 (in accordance with DIN 51562). The invention further relates to a method for producing said flame-resistant polyamide FR. In said method, one or more diamines are polycondensed with one or more dicarboxylic acids under pressure and at elevated temperature in the presence of water and with one or more diphosphinic acids and/or one or more phosphino-carboxylic acids by means of a polyamide synthesis. After the polycondensation, the pressure in the reaction chamber is reduced to less than 1 bar. The flame-resistant polyamide can be advantageously used to produce molded bodies, in particular films, components, and filaments or filament yarns. 1. A flame-retardant polyamide as condensation product of dicarboxylic acids with diamines and also a flame-retardant phosphorus compound , characterized in that the flame-retardant polyamide FR contains in its main chain not only the amide structural units of the formula (I){'br': None, '—CO—NH—\u2003\u2003(I)'} {'br': None, 'sup': '1', '—PO(R)—NH—\u2003\u2003(II),'}, 'but also phosphinamide structural units of the formula (II)'}{'sup': '1', 'Rbeing hydrogen or an organic group, and in which individual phosphinamide structural units within the main chain may be different, and in that the polyamide FR attains a relative ...

COMPOSITION AND METHOD FOR COMPOSITE MATERIAL IMPREGNATED WITH SEMI-CRYSTALLINE POLYAMIDE, OBTAINED FROM A PREPOLYMER AND A CHAIN EXTENDER

A molding composition including at least one semi-crystalline polyamide derived from the polyaddition of a) at least one polyamide prepolymer bearing n identical functions X chosen from carboxyl, amine and hydroxyl, and of b) at least one non-polymeric reactive extender bearing two identical functions Y that are reactive with said functions X with n ranging from 1 to 3, the polyamide and prepolymer a) including 55 mol % to 95 mol % of amide units A, 5 mol %-45 mol % of amide units B with A corresponding to x.T in which x is a linear aliphatic C9-C18 diamine and B corresponding to x′.T in which x′ may be B1): specific branched aliphatic diamine dependent on x or B2): MXD or B3): linear aliphatic diamine which depends on x, the polyamide having a Tg of at least 90° C. and a Tm of less than or equal to 280° C. 1. A non-reactive molding composition comprising at least one thermoplastic polymer and optionally reinforcing fibers or fibrous reinforcement , and , in this case , said at least one polymer being able to impregnate said fibers (or said fibrous reinforcement) and to form the thermoplastic matrix of the composite material:{'sub': 2', '2, 'wherein at least one thermoplastic polymer is a semi-crystalline polyamide polymer with a glass transition temperature Tg of at least 80° C., and a melting point Tm of less than or equal to 280° C. and in that it is a polyaddition polymer between a) at least one thermoplastic polyamide prepolymer, bearing n identical reactive end functions X, chosen from: —NH, —COH and —OH, with n being from 1 to 3, and b) at least one chain extender Y-A′-Y, with A′ being a single bond linking the two functions Y or a hydrocarbon-based diradical, of non-polymeric structure and bearing two identical reactive end functions Y, which are reactive by polyaddition with at least one function X of said prepolymer a), and said extender b) having a molecular mass of less than 500,'}and [{'sub': 9', '18, 'A: is a major amide unit present in a molar content ...

METHOD FOR A COMPOSITE MATERIAL IMPREGNATED WITH THERMOPLASTIC POLYMER, OBTAINED FROM A PREPOLYMER AND A CHAIN EXTENDER

A process for a composite material, including an assembly of one or more reinforcing fibers, impregnated with at least one thermoplastic polymer with a glass transition temperature Tg of less than or equal to 75° C. and a melting point of from 150° C. to less than 250° C. or a Tg of greater than 75° C., the process including: i) a step of impregnating said assembly in bulk melt form with at least one thermoplastic polymer, which is the product of polymerization by polyaddition reaction of a reactive precursor composition including: a) at least one prepolymer P(X)n of said thermoplastic polymer, and b) at least one chain extender, represented by Y-A-Y, ii) a step of cooling and obtaining a fibrous preimpregnate, and iii) a step of processing and final forming of said composite material. 1. A process for manufacturing a composite material comprising an assembly of one or more synthetic or natural reinforcing fibers , melt-impregnated with at least one thermoplastic polymer as matrix , having a glass transition temperature Tg of less than or equal to 75° C. and a melting point (Tm) ranging from 150° C. to less than 250° C. or a Tg of greater than 75° C. , said process comprising:i) a step of impregnating said assembly in bulk melt form with at least one thermoplastic polymer, having a viscosity at the impregnation temperature in bulk melt form not exceeding 200 Pa·s, with said at least one polymer being the product of polymerization by polyaddition reaction of a reactive precursor composition comprising:{'sub': '2', 'a) at least one prepolymer P(X)n of said thermoplastic polymer, comprising a hydrocarbon-based molecular chain P and bearing at its ends n identical reactive functions X, with X being a reactive function from among: OH, NHor COOH, with n ranging from 1 to 3, and a number-average molecular mass Mn ranging from 500 to 10 000 g·mol-1,'}b) at least one chain extender, represented by Y-A-Y, comprising two identical functions Y that are reactive with at least ...

SIZED GLASS FIBERS FOR FIBER-CONTAINING COMPOSITE ARTICLES AND METHODS OF MAKING THEM

Methods of making prepregs are described. The methods include the steps of forming a fiber-containing substrate, and contacting the fiber-containing substrate with a resin mixture. The resin mixture may include polymer particles mixed in a liquid medium, and the polymer particles may be coated on the fiber-containing substrate to form a coated substrate. The liquid medium may be removed from the coated substrate to form the prepreg. The prepregs may be used to make fiber-reinforced articles. 1. A method of making a prepreg , the method comprising: contacting glass fibers with a sizing composition comprising a blocked isocyanate coupling compound to make sized glass fibers; and', 'assembling the sized glass fibers into the sized glass-fiber substrate; and, 'forming a sized glass-fiber substrate, wherein the sized glass-fiber substrate is formed bycontacting the sized glass-fiber substrate with a solid thermoplastic polymer comprising a polymer film or polymer particles.2. The method of claim 1 , wherein the blocked isocyanate coupling compound comprises a carboxamide compound claim 1 , a carbamate compound claim 1 , or an isocyanurate compound.3. The method of claim 2 , wherein the carboxamide compound is 2-oxo-N-(3-(triethoxysilyl)propyl)azepane-1-carboxamide.4. The method of claim 2 , wherein the carbamate compound is chosen from triethoxysilylpropylethyl carbamate and (3-triethoxysilylpropyl)-t-butyl carbamate.5. The method of claim 2 , wherein the isocyanurate compound is tris(3-trimethoxysilylpropyl)isocyanurate.6. The method of claim 1 , wherein the solid thermoplastic polymer comprises a polyamide polymer.7. The method of claim 6 , wherein the polyamide polymer comprises nylon-6 claim 6 , or nylon-6 claim 6 ,6.8. The method of claim 1 , wherein the sized glass-fiber substrate comprises a woven glass-fiber fabric.9. The method of claim 1 , wherein the contacting the sized glass-fiber substrate with the solid thermoplastic polymer comprises:pouring a resin ...

POLYMER RECYCLING

Compositions and methods of making a culture medium from a polymeric material are described herein. The method can include (a) depolymerizing and/or dispersing the polymeric material to obtain a depolymerized and/or dispersed residue, and (b) combining the depolymerized and/or dispersed residue with one or more adjuvants to form a culture medium. In some embodiments, the polymeric material can be a plastic article, such as a waste carpet material. Culture media prepared from the compositions and methods are also described. The culture media are suitable for culturing microorganisms including bacterium, algae, and fungus. The microorganisms can be used to produce a bioproduct such as a biopolymer, an enzyme, or a cellular metabolite. 1. A method of making a culture medium from a polymeric material , the method comprising:(a) depolymerizing and/or dispersing the polymeric material to obtain a depolymerized and/or dispersed residue, and(b) combining the depolymerized and/or dispersed residue with one or more adjuvants to form a culture medium.2. The method of claim 1 , wherein the polymeric material includes polyalkylene claim 1 , polystyrene claim 1 , polyurethane claim 1 , polyester claim 1 , nylon claim 1 , polyimide claim 1 , polyamide claim 1 , polyacrylate claim 1 , polyalkylene terephthalate claim 1 , polyalkylene naphthalate claim 1 , polyolefin claim 1 , polyacrylonitrile claim 1 , rayon claim 1 , polyether ketone claim 1 , polyetherimide claim 1 , polyamide-imide claim 1 , polyvinylalcohol claim 1 , polypeptide claim 1 , protein claim 1 , cellulose claim 1 , wool claim 1 , or a combination thereof.3. The method of any one of or claim 1 , wherein the polymeric material is a plastic article.4. The method of claim 3 , wherein the plastic article comprises a fibrous material.5. The method of any one of - claim 3 , wherein depolymerizing and/or dispersing the polymeric material comprises contacting the polymeric material with a solvent.6. The method of claim 5 , ...

FLAME-RESISTANT POLYAMIDE, METHOD FOR THE PRODUCTION OF SAID FLAME-RESISTANT POLYAMIDE, AND USE OF SAID FLAME-RESISTANT POLYAMIDE

The invention relates to a flame-resistant polyamide as a product of the condensation of dicarboxylic acids with diamines and with a flame-retardant phosphorus compound, which flame-resistant polyamide is characterized in that the flame-resistant polyamide FR contains, in the main chain thereof phosphinic acid amide structural units of formula (II) —PO(R)—NH— (II) in addition to the amide structural units of formula (I) CO—NH— (I), in which formula (II) RI means hydrogen or an organic group and can differ in the individual phosphinic acid amide structural units within the main chain and that the polyamide FR achieves a relative viscosity, measured as a 1% solution in 96% sulfuric acid at 25° C., of at least 2.0 (in accordance with DIN 51562). The invention further relates to a method for producing said flame-resistant polyamide FR. In said method, one or more diamines are polycondensed with one or more dicarboxylic acids under pressure and at elevated temperature in the presence of water and with one or more diphosphinic acids and/or one or more phosphino-carboxylic acids by means of a polyamide synthesis. After the polycondensation, the pressure in the reaction chamber is reduced to less than 1 bar. The flame-resistant polyamide can be advantageously used to produce molded bodies, in particular films, components, and filaments or filament yarns. 1. (canceled)2. (canceled)3. The process according to claim 17 , wherein the C-Calkyl group is a methyl claim 17 , ethyl claim 17 , and/or a 2-propyl group.4. (canceled)5. The process according to claim 17 , wherein the polyamide FR contains 0.01 to 8 wt % claim 17 , of phosphorus.6. (canceled)7. The process according to claim 17 , further comprising the addition of an additive selected from UV stabilizers claim 17 , heat stabilizers and/or matting agents.8. The process according to claim 7 , further comprising the addition of 0.01 to 1.0 wt % of said additive.9. (canceled)10. The process according to claim 17 , ...

POLYAMIDE RESIN-TYPE COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME

A xylylenediamine-based polyamide resin/fiber composite material and molding are provided that do not exhibit a decline in properties under high temperatures and high humidities, and that exhibit a high elastic modulus and present little warping, and exhibit better recycle characteristics, a better moldability, and a better productivity than for thermosetting resins. The polyamide resin-type composite material comprises a fibrous material (B) impregnated with a polyamide resin (A) wherein at least 50 mole % of diamine structural units derived from xylylenediamine, and having a number-average molecular weight (Mn) of 6,000 to 30,000, and containing a component of a molecular weight of not more than 1,000 at 0.5 to 5 mass %. 1. (canceled)2. A polyamide resin composite material comprising:a fibrous material (B) impregnated with a polyamide resin (A),wherein the polyamide resin (A) is composed of diamine structural units and dicarboxylic units, at least 50 mole % of the diamine structural units is derived from xylylenediamine, the polyamide resin (A) has a number-average molecular weight (Mn) of 6,000 to 30,000, and 0.5 to 5 mass % of the polyamide resin (A) is a polyamide resin with a molecular weight of not more than 1,000.3. The material of claim 2 , wherein 0.01 to 1 mass % of the polyamide resin (A) is a cyclic compound which is produced when a salt from a diamine component and dicarboxylic acid component as starting materials for the polyamide resin (A) forms a ring.4. The material of claim 2 , wherein the polyamide resin (A) has a molecular weight distribution (Mw/Mn) of 1.8 to 3.1.5. The material of claim 2 , wherein the polyamide resin (A) has a melt viscosity of 50 to 1 claim 2 ,200 Pa·s claim 2 , when measured at a temperature of a melting point of the polyamide resin (A)+30° C. claim 2 , at a shear rate of 122 sec claim 2 , and at a moisture content in the polyamide resin (A) of not more than 0.06 mass %.6. The material of claim 2 , wherein the polyamide ...

METHOD OF INJECTION MOLDING RECYCLED POLYAMIDE POWDER AND PARTS FORMED BY THE METHOD

A method of manufacturing an injection molded part includes formulating recycled polyamide material from a waste polyamide powder with at least one crystallization agent and at least one lubricant agent, forming recycled polyamide pellets from the recycled polyamide material, and injection molding a part from the recycled polyamide pellets. The crystallization agent is a metal salt of an organic acid with a content in the recycled polyamide material, in weight percent, between 0.1% and 1.0%, and the lubricant agent is a metal stearate with a content between 100 ppm to 5000 ppm. The waste polyamide powder is waste polyamide powder from a selective laser sintering process, for example waste polyamide 12 powder. Also, the waste polyamide 12 powder is not graded before forming the recycled polyamide material. 1. A method of manufacturing an injection molded part comprising:formulating recycled polyamide material from a waste polyamide powder, wherein the waste polyamide powder is formulated with at least one crystallization agent and at least one lubricant agent;forming recycled polyamide pellets from the recycled polyamide material; andinjection molding a part from the recycled polyamide pellets.2. The method according to claim 1 , wherein the waste polyamide powder is waste polyamide powder from a selective laser sintering (SLS) process.3. The method according to claim 1 , wherein the waste polyamide powder is waste polyamide 12 powder.4. The method according to claim 1 , wherein the recycled polyamide material is recycled polyamide 12 material.5. The method according to claim 1 , wherein the waste polyamide powder is from a selective laser sintering (SL) process that is not graded before formulating to form the recycled polyamide material.6. The method according to claim 5 , wherein the waste polyamide powder is not graded before forming the recycled polyamide pellets.7. The method according to claim 1 , wherein the crystallization agent is a metal salt of an organic ...

NON-WEAVE FABRIC, SHEET OR FILM, MULTI-LAYERED SHEET, MOLDED ARTICLE AND METHOD FOR MANUFACTURING NON-WEAVE FABRIC

Provided is a non-weave fabric containing a thermoplastic resin fiber and a carbon fiber as major ingredients, capable of yielding a resin molded article when molded thereinto, which is excellent in mechanical strength and in appearance, and, a multi-layered sheet having the non-weave fabric and a textile layer, which is excellent in mechanical strength and less likely to warp. The non-weave fabric includes a thermoplastic resin fiber (A), a carbon fiber (B), and a thermoplastic resin (C) having a glass transition temperature lower than that of the thermoplastic resin fiber (A), the ratio of content of the thermoplastic resin (C) being 1 to 50% by weight of the total content of the thermoplastic resin fiber (A) and the thermoplastic resin (C). 1. A non-weave fabric comprising:a thermoplastic resin fiber (A);a carbon fiber (B); anda thermoplastic resin (C) having a glass transition temperature lower than a glass transition temperature of the thermoplastic resin fiber (A),which comprises the thermoplastic resin (C) in a content of 1 to 50% by weight, relative to a total content of the thermoplastic resin fiber (A) and the thermoplastic resin (C).2. The non-weave fabric of claim 1 , wherein the carbon fiber (B) has an average fiber length of 1 to 15 mm.3. The non-weave fabric of claim 1 , wherein the thermoplastic resin fiber (A) has an average fiber length of 1 to 15 mm.4. The non-weave fabric of claim 1 , wherein the thermoplastic resin (C) is in a form of a fiber.5. The non-weave fabric of claim 1 , wherein the thermoplastic resin (C) is in a form of a fiber having an average fiber length of 1 to 15 mm.6. The non-weave fabric of claim 1 , which has a difference between the average fiber length of the thermoplastic resin fiber (A) and the average fiber length of the carbon fiber (B) of 10 mm or smaller.7. The non-weave fabric of claim 1 , which has a ratio of mixing (ratio by weight) of the thermoplastic resin fiber (A) and the carbon fiber (B) of 99:1 to 25:75.8. ...

Polyamide resin composition reinforced with glass fiber

The present invention provides a polyamide resin composition reinforced with glass fiber which can produce a molded product having high anti-vibration property or, in other words, having very high resonance frequency and having, upon necessity, excellent weather-resisting color fastness. A polyamide resin composition reinforced with glass fiber, comprising a polyamide resin (A) constituted from aliphatic polyamide (a1) and aromatic component-containing polyamide (a2), and glass fibers (B) having a cross-sectional area of 1.5 to 5.0×10 −6 cm 2 , wherein ratio by weight of the polyamide resin (A) to the glass fibers (B) [(A):(B)] is from 20:80 to 35:65 and ratio by weight of the aliphatic polyamide (a1) to the aromatic component-containing polyamide (a2) [(a1):(a2)] is from 5:95 to 95:5. The polyamide resin composition reinforced with glass fibers of the present invention can further comprise carbon black (C) in an amount of at most 5% by weight.

Polyamide-Based Resin Composition Having Excellent Flexural Modulus and Impact Strength

Disclosed is a polyamide-based resin composition comprising (A) 20 to 60% by weight of an aliphatic polyamide resin having 16 to 24 carbon atoms, and (B) 40 to 80% by weight of a glass fiber having a fibrous shape and a ratio of a short axis to a long axis of 1:2 to 1:6 in cross section. The polyamide-based resin composition according to the present invention exhibits excellent flexural modulus and impact strength. 1. A polyamide-based resin composition comprising: (A) 20 to 60% by weight of an aliphatic polyamide resin having 16 to 24 carbon atoms; and (B) 40 to 80% by weight of a glass fiber having a fibrous shape and a ratio of a short axis to a long axis of 1:2 to 1:6 in cross section.2. The polyamide-based resin composition according to claim 1 , wherein the aliphatic polyamide resin (A) is selected from the group consisting of nylon 610 claim 1 , nylon 611 claim 1 , nylon 612 claim 1 , nylon 1010 claim 1 , nylon 1011 claim 1 , nylon 1111 claim 1 , nylon 1112 claim 1 , nylon 1212 and mixtures thereof.3. The polyamide-based resin composition according to claim 1 , wherein the aliphatic polyamide resin (A) has a melting point of 160 to 230° C.4. The polyamide-based resin composition according to claim 1 , wherein the glass fiber (B) is surface-treated with at least one coupling agent selected from the group consisting of urethane-based coupling agents claim 1 , silane-based coupling agents and epoxy-based coupling agents.5. The polyamide-based resin composition according to claim 1 , wherein the polyamide-based resin composition further comprises at least one additive (C) selected from the group consisting of a thermal stabilizer claim 1 , a lubricant claim 1 , a releasing agent claim 1 , a dispersing agent claim 1 , an anti-dripping agent claim 1 , a weather stabilizer claim 1 , an inorganic filler and an inorganic fiber.6. The polyamide-based resin composition according to claim 5 , further comprising 0.1 to 10 parts by weight of the additive (C) based on 100 ...

FAST PREPARATION OF LOW PRIMARY AMINE CONTAINING POLYASPARTIC ESTERS AND USE OF THESE POLYASPARTIC ESTERS IN SLOW REACTIVITY POLYUREA SYSTEMS

Low primary amine (LPA) polyaspartic esters are provided which comprise a reaction product of an aliphatic diamine and an excess of a Michael addition receptor optionally, in the presence of a C-Calcohol, wherein the low primary amine (LPA) polyaspartic ester has a monoaspartate content of less than 10%. The low primary amine (LPA) polyaspartic esters of the invention may find use in slow reactivity polyurea systems and react with polyisocyanates to produce polyurea coatings, adhesives, sealants, films, composites, castings, and paints. 1. A low primary amine (LPA) polyaspartic ester comprising a reaction product of an aliphatic diamine and an excess of a Michael addition receptor , optionally , in the presence of a C-Calcohol ,wherein the low primary amine (LPA) polyaspartic ester has a monoaspartate content of less than 10%.2. The low primary amine (LPA) polyaspartic ester according to claim 1 , wherein the C-Calcohol is ethanol.3. The low primary amine (LPA) polyaspartic ester according to claim 1 , wherein the aliphatic diamine is a cycloaliphatic diamine.4. The low primary amine (LPA) polyaspartic ester according to claim 3 , wherein the cycloaliphatic diamine is selected from the group consisting of isophoronediamine (5-amino-(1-aminomethyl)-1 claim 3 ,3 claim 3 ,3-trimethylcyclohexane) claim 3 , 1 claim 3 ,3-cyclohexanebis(methylamine) claim 3 , 1 claim 3 ,4-cyclohexanebis(methylamine) claim 3 , 4 claim 3 ,4′-diaminodicyclohexylmethane (PACM 20) claim 3 , bis(4-amino-3-methylcyclohexyl)methane claim 3 , 3 claim 3 , 3′-dimethyl-4 claim 3 , 4′-diaminodicyclohexyl-methane (DMDC) claim 3 , isomers thereof claim 3 , salts thereof claim 3 , complexes thereof claim 3 , adducts thereof claim 3 , and any mixtures thereof.5. The low primary amine (LPA) polyaspartic ester according to claim 1 , wherein the Michael addition receptor is selected from the group consisting of dimethyl maleate claim 1 , diethyl maleate claim 1 , dibutyl maleate claim 1 , dimethyl fumarate ...

METHOD OF SEPARATING MATERIALS FROM AN OBJECT

The present invention relates to a process for treating an object comprising a first material and a second material bound to the first material by centrifugal force. A process for treating an object comprising a first material which is a thermoplastic polymer and a second material selected from the group consisting of silicones, polyurethanes, fluorinated polymers, rubbers and polyvinylchloride bound to the first material, wherein the density of the first material is different from the density of the second material, said process comprising the following steps: (i) physically treating the object to obtain micronized particles, (ii) suspending the micronized particles in an acidic or alkaline solution to at least partially separate the first material from the second material, (iii) recovering the solids from the suspension obtained in step (ii) and suspending the recovered solids in a liquid composed of water and dissolved salt and having a density which is between the density of the first material and the density of the second material, and (iv) separating the first material from the second material by applying a centrifugal force to the suspension obtained in step (iii). 1. A process for treating an object comprising a first material which is a thermoplastic polymer and a second material selected from the group consisting of silicones , polyurethanes , fluorinated polymers , rubbers and polyvinylchloride bound to the first material , wherein the density of the first material is different from the density of the second material , said process comprising the following steps:(i) physically treating the object to obtain micronized particles,(ii) suspending the micronized particles in an acidic or alkaline solution to at least partially separate the first material from the second material,(iii) recovering the solids from the suspension obtained in step (ii) and suspending the recovered solids in a liquid composed of water and dissolved salt and having a density which is ...

COPOLYMER POWDER WITH POLYAMIDE BLOCKS AND POLYETHER BLOCKS

The invention relates to a copolymer powder containing polyamide blocks and polyether blocks having: 1. A copolymer powder containing polyamide blocks and polyether blocks having:an enthalpy of fusion of the polyamide blocks of greater than or equal to 70 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 4;an enthalpy of fusion of the polyamide blocks of greater than or equal to 50 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is greater than or equal to 1 and less than 4; oran enthalpy of fusion of the polyamide blocks of greater than or equal to 20 J/g if the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is less than 1.2. The powder as claimed in claim 1 , wherein the polyamide blocks of the copolymer are blocks of polyamide 11 claim 1 , or of polyamide 12 claim 1 , or of polyamide 6 claim 1 , or of polyamide 10.10 claim 1 , or of polyamide 10.12 claim 1 , or of polyamide 6.10; and/or wherein the polyether blocks of the copolymer are blocks of polyethylene glycol or of polytetrahydrofuran.3. The powder as claimed in claim 1 , wherein the polyamide blocks have a number-average molar mass of from 600 to 6000; and/or wherein the polyether blocks have a number-average molar mass of from 250 to 2000.4. The powder as claimed in claim 1 , wherein the weight ratio of the polyamide blocks relative to the polyether blocks of the copolymer is from 2 to 19.5. The powder as claimed in claim 1 , being in the form of spheroidal particles having a Dv50 size of from 20 to 150 μm.6. The powder as claimed in claim 1 , wherein the copolymer containing polyamide blocks and polyether blocks comprises ester bonds between the polyamide blocks and the polyether blocks.7. The powder as claimed in claim 1 , having an enthalpy of fusion of the polyamide blocks of greater than or equal to 70 J/g.8. A process for manufacturing ...

POLYAMIDE RESIN AND FILM COMPRISING THE SAME

Provided is a polyamide resin having excellent heat shrinkability. A polyamide resin which contains three or more types of units, wherein the polyamide resin comprises (A) units derived from a lactam and/or an aminocarboxylic acid, and (B) units derived from an equimolar salt of a diamine and a dicarboxylic acid, wherein (B) the units derived from an equimolar salt of a diamine and a dicarboxylic acid comprise (B-1) units having no alicyclic structure and (B-2) units having an alicyclic structure. 116-. (canceled)17. A polyamide resin containing three or more types of units ,the polyamide resin comprising:(A) units derived from a lactam and/or an aminocarboxylic acid; and(B) units derived from an equimolar salt of a diamine and a dicarboxylic acid,wherein (B) the units derived from an equimolar salt of a diamine and a dicarboxylic acid comprise:(B-1) units having no alicyclic structure; and(B-2) units having an alicyclic structure, andwherein (B-2) the units having an alicyclic structure comprise at least dicarboxylic acid units having an alicyclic structure.18. The polyamide resin according to claim 17 , wherein (B-2) the units having an alicyclic structure consist of dicarboxylic acid units having an alicyclic structure.19. The polyamide resin according to claim 17 , wherein (B-2) the units having an alicyclic structure comprise diamine units having an alicyclic structure and dicarboxylic acid units having an alicyclic structure.20. The polyamide resin according to claim 17 , wherein (A) the units derived from a lactam and/or an aminocarboxylic acid are contained in an amount of 50 to 98% by weight claim 17 , and(B-2) the units having an alicyclic structure are contained in an amount of 1 to 49% by weight, based on the weight of the all units of the polyimide resin.21. The polyamide resin according to claim 17 , wherein (B-1) the units having no alicyclic structure are units derived from an equimolar salt of hexamethylenediamine and adipic acid.22. The polyamide ...

GLASS FIBER-REINFORCED POLYAMIDE 66 RESIN COMPOSITION WITH HIGH TENSILE STRENGTH AND METHOD OF MANUFACTURING THE SAME

A glass fiber-reinforced polyamide 66 resin composition with a high tensile strength of 260 MPa or more and a method of manufacturing the same are provided. The method of manufacturing the composition includes that 27.2 to 49% by weight of a polyamide 66 resin, 0.2 to 2% by weight of a dye mixture, 0.2 to 2% by weight of a compatibilizer, 0.1 to 3% by weight of an antioxidant, 0.1 to 3% by weight of a lubricant and 50 to 70% by weight of a glass fiber chopped strand are mixed in a twin screw extruder, the materials are extruded in the form of a strand by an extrusion die, and cooled to obtain a pellet-type glass fiber-reinforced polyamide 66 resin composition. The glass fiber-reinforced polyamide 66 resin composition is suitable for vehicular engine mounts due to excellent mechanical strength, and for parts requiring physical properties. 1. A glass fiber-reinforced polyamide 66 resin composition with a high tensile strength of 260 MPa or more comprising:27.2 to 49% by weight of a polyamide 66 resin:0.2 to 2% by weight of a dye mixture for coloring;0.2 to 2% by weight of a compatibilizer for improving physical properties;0.1 to 3% by weight of an antioxidant comprising 1,3,5-tris(2,6-dimethyl-3-hydroxy-4-tert-butylbenzyl)isocyanurate,0.1 to 3% by weight of a lubricant comprising an ethylene bis stearamide wax; and50 to 70% by weight of a glass fiber chopped strand,wherein the compatibilizer is a zinc-based complex, and the zinc-based complex comprises at least one of zinc soap, fatty acid zinc, zinc oxide, zinc stearate, zinc borate, zinc laurate, zinc tartrate, zinc oleate, zinc sulfate, and a mixture of at least a part thereof,the polyamide 66 resin has a relative viscosity of 1.5 to 3.5 in a sulfuric acid solution,the glass fiber has a mean particle diameter of 6 μm to 15 μm and a mean length of 2 mm to 12 mm,the dye mixture is a mixture of 10 to 70% by weight of a dye and 30 to 90% by weight of polyethylene, andthe dye comprises carbon black or nigrosine.2. A ...

Painted Molding Article

The present invention relates to a painted molding article in which a paint composition is painted in a molding part formed of an injection molding thermoplastic resin composition, and the injection molding thermoplastic resin composition comprises: (a) a base resin including polyamide (a-1) and polyphenylene ether (a-2); (b) an impact modifier; and (c) a carbon fibril, wherein the polyamide (a-1) forms a matrix phase of the injection molding thermoplastic resin composition, the polyphenylene ether (a-2) and the impact modifier (b) form a domain phase of the injection molding thermoplastic resin composition, the carbon fibril (c) is dispersed on the domain phase and the matrix phase, the content of the carbon fibril (c) dispersed on the matrix phase is higher than the content of the carbon fibril (c) dispersed on the domain phase, and the ratio of weight of the carbon fibril (c) to weight of the polyamide (a-1) may be 0.006 to 0.03. 1. A painted molded article including a molded part formed of an injection molding thermoplastic resin composition and painted with a paint composition , the injection molding thermoplastic resin composition comprising: (a) a base resin comprising (a-1) a polyamide and (a-2) a polyphenylene ether; (b) an impact modifier; and (c) carbon fibrils ,wherein the polyamide (a-1) forms a matrix phase of the injection molding thermoplastic resin composition, the polyphenylene ether (a-2) and the impact modifier (b) form a domain phase of the injection molding thermoplastic resin composition, the carbon fibrils (c) are dispersed in the domain phase and the matrix phase, the carbon fibrils (c) being dispersed in a higher content in the matrix phase than in the domain phase, and a weight ratio of the carbon fibrils (c) to the polyamide (a-1) ranges from 0.006 to 0.03.2. The painted molded article according to claim 1 , wherein the injection molding thermoplastic resin composition comprises 3 parts by weight to 20 parts by weight of the impact ...

Particles comprising polyamides with pendent pigments and related methods

A nonlimiting example method of forming polyamide polymer particles having pigments therein may comprising: mixing a mixture comprising a polyamide having a pigment pendent from a backbone of the polyamide (PP-polyamide), a carrier fluid that is immiscible with the PP-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the PP-polyamide and at a shear rate sufficiently high to disperse the PP-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the PP-polyamide to form solidified particles comprising the PP-polyamide and, when present, the emulsion stabilizer associated with an outer surface of the solidified particles. Said solidified particles may be used in additive manufacturing to make a variety of objects like containers, toys, furniture parts and decorative home goods, plastic gears, automotive parts, medical items, and the like.

Polymeric nanogels with degradable backbones and from gras components, and compositions and methods thereof

The invention generally relates to novel polymers and polymeric nanogels having biodegradable polymeric backbones, and compositions and methods of preparation and use thereof, for example, as guest-host polymer nano-assemblies and nano-delivery vehicles, which offer utilities in diverse fields including drug delivery, diagnostics and specialty materials.

Fiber-reinforced polyamide resin base, method for producing same, molded article containing same, and composite molded article

A fiber-reinforced polyamide resin base material comprises continuous reinforcing fibers, or comprises a reinforcing fiber base material in which discontinuous reinforcing fibers are dispersed, impregnated with a polyamide resin. In the polyamide resin, at least part of the polymer constituting the polyamide resin is an end-modified polyamide resin having, at an end group of the polymer, a structure constituted by a structural unit different from a repeating structural unit constituting the backbone of the polymer. A fiber-reinforced polyamide resin base material having an excellent impregnation property and thermal stability, less void, and excellent surface quality is provided.

Copolymer Foam With Polyamide Blocks And Polyether Blocks

The invention relates to a non-cross-linked copolymer foam with polyamide blocks and polyether blocks, wherein: the polyamide blocks of the copolymer have an average molar mass of from 200 to 1,500 g/mol; the polyether blocks of the copolymer have an average molar mass of from 800 to 2,500 g/mol; and the weight ratio of the polyamide blocks to the polyether blocks of the copolymer is from 0.1 to 0.9. The invention also relates to a method for manufacturing said foam and items manufactured from said foam. 112.-. (canceled)13. A non-crosslinked polyamide polyether block copolymer foam , comprising:polyamide blocks having a number average molecular weight of from 200 to 1500 g/mol; andpolyether blocks having a number average molecular weight of from 800 to 2500 g/mol,wherein a mass ratio of the polyamide blocks relative to the polyether blocks of the copolymer is from 0.1 to 0.9.14. The foam of claim 13 , wherein:the polyamide blocks have a number average molecular weight of from 400 to 1000 g/mol; andthe polyether blocks have a number average molecular weight of 1000 to 2000 g/mol,wherein the mass ratio of the polyamide blocks relative to the polyether blocks of the copolymer is from 0.3 to 0.6.15. The foam of claim 13 , wherein:the polyamide blocks have a number average molecular weight of from 600 to 850 g/mol; andthe polyether blocks have a number average molecular weight of 1000 to 2000 g/mol,wherein the mass ratio of the polyamide blocks relative to the polyether blocks of the copolymer is from 0.3 to 0.6.16. The foam of claim 13 , wherein the polyamide blocks of the copolymer include at least one member selected from the group consisting of polyamide 6 claim 13 , polyamide 11 claim 13 , polyamide 12 claim 13 , polyamide 6.10 claim 13 , polyamide 10.10 claim 13 , and polyamide 10.12.17. The foam of claim 14 , wherein the polyamide blocks of the copolymer include at least one member selected from the group consisting of polyamide 6 claim 14 , polyamide 11 claim 14 ...

METHOD FOR IMPREGNATING NATURAL FIBRES WITH A POLYMER IN AQUEOUS DIPERSION AND USE OF SAID FIBRES IN COMPOSITE MATERIALS

A method for impregnating strands or strips of natural fibres, using the following successive steps: i) the impregnation of the strands or strips by immersion in a bath containing a fine aqueous polymer dispersion; followed by ii) the drying of the strands or strips using a heating system, with the progressive elimination of the water and the gradual melting of the polymer, and the coating of the strands or strips and the molten polymer incorporated into the core of the strands or strips as a binder between the fibres; iii) optionally, the forming of the treated strands or strips into their final shape; and iv) the cooling of the treated strands or strips. The aqueous polymer dispersion comprises at least one semi-crystalline or amorphous polymer and, in the case of an amorphous polymer, has a Tg varying between 50° C. and 175° C. 2. The process as claimed in claim 1 , wherein said polymer is chosen from: (co)polyamides claim 1 , (co)polyesters claim 1 , polyurethanes claim 1 , poly(meth)acrylates claim 1 , fluorinated polymers or polyolefins.3. The process as claimed in claim 2 , wherein said polymer is chosen from a poly(meth)acrylate (including copolymers) functionalized with acid functions or a fluorinated polymer (including copolymers) grafted with reactive functions and that said aqueous dispersion is an aqueous dispersion obtained by emulsion polymerization in the presence of a surfactant and wherein said reactive functions can react with said natural fibers and more particularly with flax fibers.4. The process as claimed in claim 2 , wherein said polymer is a polyurethane formed from a polyisocyanate prepolymer comprising an ionic group claim 2 , dispersed in water with chain extension in an aqueous medium.5. The process as claimed in claim 1 , wherein said polymer is dispersible (or dispersed) in powder form in an aqueous medium without surfactant.6. The process as claimed in claim 5 , wherein said polymer is a copolyamide.7. The process as claimed in claim ...

Resin powder, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

A resin powder contains a resin, wherein the proportion of fine powder having a number diameter of 40 percent or less of a mean number diameter Mn of the resin powder is 30 percent or less in the resin powder.

Solvent Resistant, Transparent Aromatic Polyamide Films with High Refractive Indices

A solvent resistant, transparent aromatic polyamide film with a high refractive index may be made by reacting at least one aromatic diacid chloride, a first aromatic diamine, and at least one crosslinking agent or a second aromatic diamine in an organic solvent to form an aromatic polyamide polymer in solution. In one embodiment, the at least one aromatic diacid chloride is selected from the group consisting of isophthaloyl dichloride, terephthaloyl dichloride, 2,6 -naphthalene-dicarboxylic chloride, or combinations thereof and the first aromatic diamine is selected from the group consisting of 9,9-Bis(4-hydroxyphenyl)fluorine, 2,2′,5,5′-Tetrachlorobenzidine, or combinations thereof. The organic solvent is then evaporated from the aromatic polyamide polymer in solution to form a transparent aromatic polyamide precursor film. The precursor film is then heated at a temperature close to the glass transition temperature of the transparent aromatic polyamide precursor film to form the solvent resistant, transparent aromatic polyamide film.

TRANSPARENT POLYAMIDE RESIN COMPOSITION AND CROSSLINKED TRANSPARENT POLYAMIDE RESIN MOLDED BODY

A transparent polyamide resin composition includes a transparent polyamide resin which is a copolymer of an alicyclic diamine and a dicarboxylic acid and which has a refractive index of 1.500 to 1.550, and a transparent crosslinking auxiliary having a refractive index of 1.500 to 1.550, in which the amount of the crosslinking auxiliary added is 13 to 26 parts by mass relative to 100 parts by mass of the transparent polyamide resin, and the crosslinking auxiliary is dispersed, as phases with a diameter of 350 nm or less, in the transparent polyamide resin. A crosslinked transparent polyamide resin molded body is obtained by molding the transparent polyamide resin composition and crosslinking the transparent polyamide resin. 1. A transparent polyamide resin composition comprising:a transparent polyamide resin which is a copolymer of an alicyclic diamine and a dicarboxylic acid and which has a refractive index of 1.500 to 1.550; anda transparent crosslinking auxiliary having a refractive index of 1.500 to 1.550,wherein the amount of the crosslinking auxiliary added is 13 to 26 parts by mass relative to 100 parts by mass of the transparent polyamide resin, and the crosslinking auxiliary is dispersed, as phases with a diameter of 350 nm or less, in the transparent polyamide resin.2. The transparent polyamide resin composition according to claim 1 , wherein the alicyclic diamine is an alicyclic diamine selected from the group consisting of 4 claim 1 ,4′-methylenebis (2-methylcyclohexylamine) and 4 claim 1 ,4′-methylenebis(cyclohexylamine).3. The transparent polyamide resin composition according to claim 1 , wherein the dicarboxylic acid is dodecanediacid.4. The transparent polyamide resin composition according to claim 1 , wherein the crosslinking auxiliary contains triallyl isocyanurate as a basic structure.5. The transparent polyamide resin composition according to claim 1 , wherein the melt flow rate is 35 g/10 min or more at 250° C. under a load of 5 kg.6. A ...

POLYAMIDE RESIN COMPOSITION, AND MOLDED ARTICLE

The invention provides a polyamide resin composition (1) containing a polyamide (A) and a free volume modifier (B), and having a free volume, as measured according to a positron annihilation method, of 0.0545 nmor less. The invention also provides a polyamide resin composition (2) prepared by adding from 0.005 to 1.200 parts by mass of a polysilsesquioxane (B) whose main chain is comprised of siloxane bonds, to 100 parts by mass of a polyamide (A) that contains a diamine unit including an aromatic diamine unit represented by the following general formula (I) in an amount of 70 mol % or more and a dicarboxylic acid unit including at least one of a linear aliphatic dicarboxylic acid unit represented by the following general formula (II-1) and an aromatic dicarboxylic acid unit represented by the following general formula (II-2) in a total amount of 50 mol % or more: 1. A polyamide resin composition comprising a polyamide (A) and a free volume modifier (B) , and having a free volume , as measured according to a positron annihilation method , of 0.0545 nmor less.3. The polyamide resin composition according to claim 1 , wherein the free volume modifier (B) is a polysilsesquioxane (B1) whose main chain is comprised of siloxane bonds.4. The polyamide resin composition according to claim 3 , wherein the polysilsesquioxane (B1) is a compound represented by the following general formula (b):{'br': None, 'sub': 1.5', 'n, '(RSiO)\u2003\u2003(b)'}wherein n indicates an integer represented by (2m+4) (where m indicates an integer of 1 or more), R independently represents a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, an imide group, an alkenyl group, an alkynyl group, a cyano group, a nitro group, an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 3 to 12 carbon atoms, an aryl group having from 6 to 18 carbon atoms, an arylalkyl group having from 6 to 24 carbon atoms, a polyalkyleneoxy group having from 2 to 10 carbon atoms, an ...

POLYAMIDE RESIN COMPOSITION AND METHOD FOR ENHANCING THERMAL AGING RESISTANCE OF POLYAMIDE RESIN

The present invention is a polyamide resin composition having excellent thermal aging resistance and excellent mechanical characteristics, and containing 0.5 to 20 part(s) by mass of a metal cyanide salt having the general composition formula (A[M(CN)]) to 100 parts by mass of a polyamide resin. In the general composition formula, M is at least one member of transition metal elements in groups 5 to 10 and periods 4 to 6 of a periodic table; A is at least one member of alkali metal and alkaline earth metal; y is an integer of from 3 to 6; and x is a number calculated by (y−m)/a, wherein m is a valence of M and a is a valence of A. 1. A polyamide resin composition , characterized in that , to 100 parts by mass of a polyamide resin , 0.5 to 20 part(s) by mass of a metal cyanide salt having the following general composition formula (1) is compounded:{'br': None, 'sub': x', 'y, 'A[M(CN)]\u2003\u2003General composition formula (1)'}(In the general composition formula (1), M is at least one member of transition metal elements in groups 5 to 10 and periods 4 to 6 of a periodic table; A is at least one member of alkali metal and alkaline earth metal; y is an integer of from 3 to 6; and x is a number calculated by (y−m)/a, wherein m is a valence of M and a is a valence of A.)2. The polyamide resin composition according to claim 1 , wherein M in the general composition formula (1) is iron.3. The polyamide resin composition according to claim 1 , wherein the metal cyanide salt in the general composition formula (1) is one or more member(s) selected from the group consisting of alkali metal hexacyanoferrate (II) and alkali metal hexacyanoferrate (III).4. The polyamide resin composition according to claim 1 , wherein claim 1 , to 100 parts by mass of the polyamide resin claim 1 , a copper compound is compounded in an amount of 0.0001 to 1 part by mass as copper.5. A method for enhancing thermal aging resistance of a polyamide resin claim 1 , characterized in that claim 1 , to 100 ...

Sliding Member and Process for Producing the Same

A sliding member comprising a polyamide resin and 10 to 50 wt % of a fibrous filler selected from the group consisting of carbon fibers, aramid fibers, and whiskers, and having fine dents formed in a sliding surface thereof by dimpling using a laser; and a process for producing a sliding member comprising adding 10 to 50 wt % of a fibrous filler selected from the group consisting of carbon fibers, aramid fibers, and whiskers to a polyamide resin, and forming fine dents in a sliding surface of the sliding member by dimpling using a laser.

Process for preparing a polyamide, a nylon salt to be used therein and a process for making the salt

Processes for preparing a polyamide, a polyamide material obtained by such processes, a nylon salt to be used therein, and processes for making the nylon salt are disclosed. The processes for preparing the polyamide include a direct solid state polymerization process. The salt used herein is a granulate material, prepared by a process, comprising spraying an aqueous solution comprising a diamine and a dicarboxylic acid dissolved in an aqueous medium, or an aqueous slurry comprising a diammonium dicarboxylate salt dispersed in an aqueous medium directly obtained from such an aqueous solution, onto or in a fluidized bed of diammonium dicarboxylate salt particles, while evaporating the aqueous medium, thereby forming a granulate salt material.

Polymer composition for selective sintering methods

A polymer composition can be used for selective absorbing sintering, SAS, or selective inhibition sintering, SIS. The polymer has open mesopores and the cumulative pore volume distribution of the mesopores, measured to DIN 66134, is at least 0.01 cm/g. 115-. (canceled)16: A process for producing a polymer composition for selective absorbing sintering or selective inhibition sintering , the process comprising:a) at least partly dissolving a polymer in a solvent at a temperature of 10 K to 60 K above a dissolution temperature of the polymer, and thenb) reducing the temperature down to a precipitation temperature to obtain the polymer composition in the form of a suspension;{'sup': '3', 'wherein the polymer composition comprises open mesopores, and wherein a cumulative pore volume distribution of the mesopores, measured according to DIN 66134, is at least 0.01 cm/g.'}17: The process according to claim 16 , wherein the cumulative pore volume distribution is at least 0.025 cm/g.18: The process according to claim 16 , wherein the cumulative pore volume distribution is at least 0.035 cm/g.19: The process according to claim 16 , wherein at least 30% of a sum total of open macro- and mesopores of the polymer composition having a pore diameter of 2 to 300 nm claim 16 , measured according to DIN 66134 claim 16 , are open mesopores.20: The process according to claim 16 , wherein at least 50% of a sum total of open macro- and mesopores of the polymer composition having a pore diameter of 2 to 300 nm claim 16 , measured according to DIN 66134 claim 16 , are open mesopores.21: The process according to claim 16 , wherein the polymer composition absorbs liquid in a volume of 1 claim 16 ,000 pl/g to 30 claim 16 ,000 pl/g.22: The process according to claim 16 , wherein a BET surface area of the polymer composition claim 16 , measured to DIN ISO 9277 claim 16 , is at least 7 m/g.23: The process according to claim 16 , wherein a BET surface area of the polymer composition claim 16 , ...

METHOD FOR PRODUCING GLASS-FIBER-REINFORCED POLYAMIDE RESIN COMPOSITION

The present invention aims to provide a method for producing a glass-fiber-reinforced polyamide resin composition which can stably provide a molded product that has excellent weather resistance, and has a highly excellent appearance (textured surface uniformity). According to the present invention, there is provided a method for producing a glass-fiber-reinforced polyamide resin composition by using an extruder, wherein the composition contains a crystalline aliphatic polyamide resin (A), an amorphous polyamide resin (B), an acrylic resin (C), mica (D), glass fiber (E) and a master batch of carbon black (F) in a specific ratio by mass, respectively, wherein the composition further contains a specific amount of a copper compound (G), and wherein the extruder has a supply port for raw materials, a side-feeder, and a discharge port, which are arranged in this order from an upstream side being a raw material-supply side, characterized in that, the ingredients (A), (B), (C) and (F) as well as a dispersion of the ingredient (G) are supplied to the extruder from the supply port for raw materials, and the ingredients (D) and (E) are supplied to the extruder from the side-feeder. 1. A method for producing a glass-fiber-reinforced polyamide resin composition by using an extruder , wherein the composition contains a crystalline aliphatic polyamide resin (A) , an amorphous polyamide resin (B) , an acrylic resin (C) , mica (D) , glass fiber (E) and a master batch of carbon black (F) in a ratio by mass of (17 to 30):(10 to 16):(3 to 8):(10 to 25):(20 to 50):(1 to 8) , respectively , wherein a mass ratio of (A) and (B) ((B)/(A)) satisfies 0.50 to 0.61 , wherein the composition further contains a copper compound (G) in a rate of 0.005 to 1.0 part by mass when a total amount of the ingredients (A) to (F) is taken as 100 parts by mass , and wherein the extruder has a supply port for raw materials , a side-feeder , and a discharge port , which are arranged in this order from an ...

METHOD FOR PRODUCING A MODIFIER FOR PREPARING A COMPOSITE MATERIAL BASED ON A THERMOPLASTIC POLYMER

A method for producing a modifier for preparing a composite material based on a thermoplastic polymer where the thermoplastic polymer is mixed with a solvent and salts of alkali metals with the following ratio of components (wt. %): thermoplastic polymer—3-15, solvent—70-94, salts of alkali metals—3-15, until the polymer is fully dissolved, and then carbon nanotubes are added to the mixture in an amount up to 5 wt. % while stirring to produce a dispersion, then a coagulant is added to the dispersion under continuous stirring, the resulting dispersion is then filtered, and the filter cake is rinsed and dried up. The solvent is selected from the group of: alcohol, or N-methylpyrrolidone, or dimethylacetamide. The alkali metal salt is lithium chloride or calcium chloride. The carbon nanotubes are single-wall carbon nanotubes. 144-. (canceled)45. A method for producing a modifier for preparing a composite material based on a thermoplastic polymer , the method comprising:mixing the thermoplastic polymer with a solvent and salts of alkali metals or calcium in a following ratio (wt. %):the thermoplastic polymer: 3-15,the solvent: 70-94, andthe salts of alkali metals or calcium: 3-15,until the thermoplastic polymer is fully dissolved;adding carbon nanotubes to the mixture in an amount of up to 5 wt. % while stirring the mixture to produce a dispersion;adding a coagulant to the dispersion under continuous stirring;filtering the resulting coagulated dispersion to produce a filter cake; andrinsing and drying the filter cake.46. The method of claim 45 , wherein the solvent is selected from the group consisting of: alcohol claim 45 , or N-methylpyrrolidone claim 45 , or dimethylacetamide.47. The method of claim 45 , wherein the salt is lithium chloride or calcium chloride.48. The method of claim 45 , wherein the carbon nanotubes are single-wall carbon nanotubes.49. The method of claim 45 , wherein the dispersion of carbon nanotubes is prepared using a high-speed disperser claim ...

Polyimide film, block copolymer of polyamide acid, and method for manufacturing the block copolymer of polyamide acid

A block copolymer of polyamide acid includes a first polyamide acid and a second polyamide acid alternately connected. The first polyamide acid is made by first dianhydride monomers and second diamine monomers. The second polyamide acid is made by second dianhydride monomers and first diamine monomers. Each first dianhydride monomer is or comprises a liquid crystal structure. Each second dianhydride monomer and each second diamine monomer respectively include a first flexible structure. Each first diamine monomer includes a liquid crystal structure. Each liquid crystal structure includes a cyclic group selected from a chemical structural formula of and intermediate groups selected from a chemical structural formula of Each flexible structure includes a group selected from a group consist of ether bond, ketone group, sulphone group, aliphatic hydrocarbon group, and any combination thereof.

ACOUSTIC EMISSION REDUCTION OF COMPOSITES CONTAINING SEMI-AROMATIC POLYAMIDES

The present invention relates to a composite structure having a surface, which surface has at least a portion made of a surface resin composition, and comprising a woven glass fiber fabric, said woven glass fiber fabric being fully impregnated with a matrix resin composition, wherein 1. A composite structure having a surface , which surface has at least a portion made of a surface resin composition , and comprising a woven glass fiber fabric , said woven glass fiber fabric being fully impregnated with a matrix resin composition , whereina. the matrix resin composition comprises a blend of PA6T/DT and PA66/6T 'and wherein', 'b. the surface resin composition is independently selected from an amorphous polyamide composition comprising PA6I/6T or a polyamide composition comprising a blend of PA66 and PA6'}{'sup': '2', 'c. the woven glass fiber fabric has a basis weight of between 280 to 320 g/m'}d. the coverage of the woven glass fiber fabric is of between 95% to 100%.2. The composite structure according to claim 1 , wherein the fiber volume fraction of the composite structure is of between 45 to 60%.3. The composite structure according to claim 1 , further comprising a fibrous material made of carbon fibers.4. The composite structure according to claim 1 , wherein the weight ratio of PA6T/DT and PA66/6T in the blend of the matrix resin composition is between from about 30:70 to about 70:30 claim 1 , preferably 50:50.5. The composite structure according to claim 1 , wherein the matrix resin composition further comprises PA6I/6T.6. The composite structure according to claim 1 , wherein the matrix resin composition and the surface resin composition comprise a blend of PA6T/DT claim 1 , PA66/6T and PA6I/6T.7. The composite structure according to claim 1 , wherein the weight ratio of PA6T/DT claim 1 , PA66/6T and PA6I/6T in the blend of the matrix resin composition and surface resin composition is about 40:40:20.81. The composite structure according to claim claim 1 , ...

BIAXIALLY STRETCHED POLYAMIDE FILM AND LAMINATE FILM

The objective of the present invention is to provide a biaxially stretched polyamide film that is excellent in an impact resistance, a folding pinhole resistance and a friction pinhole resistance and that is produced from a raw material derived from a biomass. The present invention relates to a biaxially stretched polyamide film, comprising 99 to 70 mass % of a Polyamide 6 resin and 1 to 30 mass % of a polyamide resin, wherein at least a part of a raw material of the polyamide resin is derived from a biomass, and the biaxially stretched polyamide film meets the following (a) and (b): (a) the number of Gelbo pinhole defect is 10 or less after the biaxially stretched polyamide film is twisted and bent 1000 times at 1° C. using a Gelbo flex tester, (b) a distance leading to a pinhole formation by a friction resistance pinhole test is 2900 cm or more.

Polyamide molding composition for high-gloss applications

Described herein is a thermoplastic molding material includinga) a mixture of 100 parts by weight of polyamide including aliphatic unbranched C10-12-foundational units and 5 to 100 parts by weight of polyamide 6 and/or polyamide 6/6,6 as component A), andb) 0% to 30% by weight, based on component A), of further additives as componentB), including 0% to 20% by weight, based on component A), of inorganic fillers and reinforcing materials.

Easily tearable film, multilayer film, packaging material, and container

An easily tearable film with excellent linear cuttability, as well as a multilayer film, a packaging material, and a container are provided. The easily tearable film is a polyamide resin film including polyamide resin components including more than 20 parts by mass and 70 parts by mass or less of a semi-aromatic polyamide resin A and less than 80 parts by mass and 30 parts by mass or more of an aliphatic polyamide resin B; wherein the semi-aromatic polyamide resin A is constituted of a diamine-derived constituent unit and a dicarboxylic acid-derived constituent unit; 60 mol % or more of the diamine-derived constituent units are derived from metaxylylenediamine; 60 mol % or more of the dicarboxylic acid-derived constituent units are derived from an α,ω-linear aliphatic dicarboxylic acid having from 4 to 10 carbons; and the polyamide resin film is stretched, the polyamide resin film having an area fraction corresponding to the semi-aromatic polyamide resin A, as observed in secondary electron image observation, of 9.8% or more after plane ion milling of a cross section of the polyamide resin film in the TD direction.

FORMULATION METHODOLOGY FOR DISTORTIONAL THERMOSETS

Methods and formulations for distortional thermosets are disclosed that display enhanced composite mechanical performances and robust sorption resistance. The composition includes an epoxy resin of formula (I): 2. The composition of claim 1 , wherein the composition has a von Mises strain of at least 0.300.9. The composition of claim 1 , wherein the epoxy resin of formula (I) is in stoichiometric excess relative to the diamine curing agent.10. The composition of claim 1 , wherein the diamine curing agent has a Fukui electrophilic index between about 0.04 and about 0.06.11. The composition of claim 1 , further comprising a second diamine curing agent.13. The composition of claim 11 , wherein the second diamine curing agent is 4 claim 11 ,4′-sulfonyldianiline.14. The composition of claim 11 , wherein the second diamine curing agent has a curing reaction control value between about 1 and about 55 as relative reactivity compared to 4 claim 11 ,4′-sulfonyldianiline by Mulliken-based correlations.15. The composition of claim 11 , wherein the second diamine curing agent has a curing reaction control value between about 1 and about 55 as relative reactivity compared to 4 claim 11 ,4′-sulfonyldianiline by Mulliken-based correlations.16. The composition of claim 15 , wherein the second diamine curing agent has a curing reaction control value between about 1 and about 8 as relative reactivity compared to 4 claim 15 ,4′-sulfonyldianiline by Mulliken-based correlations.17. The composition of claim 16 , wherein the first diamine curing agent has a curing reaction control value between about 24 and about 55 as relative reactivity compared to 4 claim 16 ,4′-sulfonyldianiline by Mulliken-based correlations.18. The composition of claim 11 , wherein the second diamine curing agent comprises at least one electron-withdrawing moiety.19. The composition of claim 18 , wherein the at least one electron-withdrawing moiety of the second diamine curing agent is selected from the group ...

Polymer nanofiber sheet and method for producing the same

A polymer nanofiber sheet including polymer nanofibers having a polymer, the polymer nanofibers being accumulated and three dimensionally entangled. The polymer nanofiber sheet has a low molecular weight organic compound containing at least one 4- or higher-membered ring structure with an ether linkage. The difference between the average solubility parameter of the polymer and the average solubility parameter of the low molecular weight organic compound is less than 8 (J/cm 3 ) 1/2 .

POLYAMIDE MOLDING MATERIALS REINFORCED WITH GLASS FIBERS AND INJECTION MOLDED PARTS THEREOF

The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix. 1. Reinforced polyamide molding materials with high notch impact strength , comprising low viscous polyamides and flat glass fibers as a reinforcing medium , consisting ofa polyamide matrix, consisting of the following components:{'sub': 'rel', '(A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity η, measured in m-cresol (0.5 wt-%), of more than 1.3 and of less than 1.9, selected from the group consisting of polyamide 11, polyamide 12, polyamide 1212, polyamide 1010, polyamide 1012 and polyamide 1112,'}{'sub': 'rel', '(B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, with a solution viscosity η, measured in m-cresol (0.5 wt-%), of more than 1.3 and less than 1.9,'} {'br': None, 'i': A', 'B, '()+()=20 to 60 wt.-%'}, 'wherein the components (A) and (B) fulfil the conditionand that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, anda filler component, consisting of:(C) 40 to 80 wt.-% flat glass fibers with elongated shape, and the glass fibers have a non-circular cross-sectional area and a size ratio of the main cross-sectional axis to the secondary cross-sectional axis of between 2 to 5, and(D) 0 to 40 wt.-% particle like or layer like fillers,with the proviso that carbon fibers are excluded, wherein the polyamide molding materials optionally comprise up to 5 wt.-% of further usual additives and auxiliary agents (E), andwherein the weight of the components (A) to (E) sums up to 100%.2. Reinforced polyamide ...

Recycling of Fibrous Surface Coverings

Methods, compositions, single phase aqueous solutions, process mixtures, and kits are provided relating to recycling a fibrous surface covering, e.g., carpet, using a single-phase aqueous solution. For example, a method of recycling a fibrous surface covering may include providing the single phase aqueous solution. The single phase aqueous solution may include water and a surfactant composition. The method may include providing the fibrous surface covering. The fibrous surface covering may include: a fibrous surface layer; a first backing coupled to the fibrous surface layer; and a binder coupled to one or more of the first backing and the fibrous surface layer. The method may include contacting the single phase aqueous solution and the fibrous surface covering to form a process mixture under conditions effective to provide a recycled portion of the fibrous surface covering. 1. A method for recycling a fibrous surface covering using a single-phase aqueous solution , comprising:providing the single phase aqueous solution comprising: water and a surfactant composition; a fibrous surface layer;', 'a first backing coupled to the fibrous surface layer;', 'a binder coupled to one or more of the first backing and the fibrous surface layer; and, 'providing the fibrous surface covering comprisingcontacting the single phase aqueous solution and the fibrous surface covering to form a process mixture under conditions effective to provide a recycled portion of the fibrous surface covering.2. The method of claim 1 , further comprising one or more of:at least partly uncoupling the recycled portion of the fibrous surface covering from the fibrous surface covering;suspending the recycled portion in the process mixture;dissolving the recycled portion in the process mixture;separating the recycled portion of the fibrous surface covering from the process mixture; andrecovering the recycled portion of the fibrous surface covering from the process mixture.3. The method of claim 1 , the ...

Retort food packaging film containing graphene

The present application relates to a retort food packaging film containing graphene and a method for manufacturing the retort food packaging film.

Method for Dispersion of Nanocellulose in Melt-Processed Polymers

The present disclosure relates to a novel method for dispersion of nanocellulose in melt-processed polymers without the introduction of solvent during melt processing. 1. A method of preparing a substantially homogeneous nanocellulose-dispersed organic hydrophobic polymer composition , wherein the method comprises:a) preparing a nanocellulose solution with a first solvent;b) preparing an organic additive solution with a second solvent, wherein the second solvent is capable of being a common solvent for said nanocellulose and said additive, and the first and the second solvent may be same or different;c) mixing the nanocellulose solution and the additive organic additive solution to provide a solution mixture of said nanocellulose and said organic additive;d) removing said first solvent and said second solvent from said solution mixture to provide a substantially solvent free composition comprising said nanocellulose and said organic additive; ande) melt-compounding said solid composition comprising said nanocellulose and said organic additive with an organic hydrophobic polymer to provide a substantially homogeneous polymer comprising said nanocellulose, said organic additive, and said organic hydrophobic polymer.2. The method of claim 1 , wherein the nanocellulose comprises cellulose nanofibrils (CNFs) claim 1 , cellulose nanocrystals (CNCs) claim 1 , or a combination thereof.3. The method of claim 1 , wherein said first and said second solvent are both water.4. The method of claim 1 , wherein said first solvent is water claim 1 , said second solvent is a water soluble organic solvent.5. The method of claim 4 , wherein said second solvent comprises alcohols claim 4 , ketones claim 4 , esters claim 4 , ethers claim 4 , acetonitrile claim 4 , or any combination thereof.6. The method of claim 5 , wherein said first solvent is water claim 5 , said second solvent is a straight or branched C-Calcohol claim 5 , acetone claim 5 , ethyl acetate claim 5 , tetrahydrofuran ...

TRANSPARENT POLYIMIDE AND PRECURSOR THEREOF

Provided is a polyimide excellent in heat resistance and colorless transparency and also excellent in flexibility and ultraviolet ray transmittance. The polyimide includes a structural unit represented by Formula (1a) and a structural unit represented by Formula (1b) wherein R is a specific aromatic group. 2. The polyimide according to claim 1 , wherein in Formulae (1a) and (1 b) claim 1 , R is a group represented by Formula (x1).4. The polyamic acid according to claim 3 , wherein in the Formulae (2a) and (2b) claim 3 , R is a group represented by Formula (x1).5. A polyimide composition comprising the polyimide according to and an inorganic filler.6. A polyamic acid composition comprising the polyamic acid according to and an inorganic filler.7. A process for producing the polyamic acid according to claim 3 , comprising a step of allowing a diamine mixture containing 1 claim 3 ,4-cyclohexanediamine and 1 claim 3 ,4-bis(aminomethyl)cyclohexane such that a molar ratio of 1 claim 3 ,4-cyclohexanediamine/1 claim 3 ,4-bis(aminomethyl)cyclohexane ranges from 99.9/0.1 to 50.0/50.0 to react with a tetracarboxylic dianhydride containing at least one selected from bis(3 claim 3 ,4-dicarboxyphenyl)ether dianhydride claim 3 , 3 claim 3 ,3′ claim 3 ,4 claim 3 ,4′-diphenylsulfonetetracarboxylic dianhydride and 2 claim 3 ,2-bis(3 claim 3 ,4-dicarboxyphenyl)-1 claim 3 ,1 claim 3 ,1 claim 3 ,3 claim 3 ,3 claim 3 ,3-hexafluoropropane dianhydride.9. A polyamic acid varnish comprising the polyamic acid according to and a solvent.10. A dry film comprising the polyamic acid according to .11. A film comprising the polyimide according to .12. An optical film comprising the film according to .13. A substrate for a flexible display claim 12 , comprising the optical film according to claim . The present invention relates to a transparent polyimide and its precursor which is a polyamic acid, as well as their uses.Polyimides generally have excellent heat resistance, mechanical properties and ...

Thermoplastic composites and corresponding fabrication methods and articles

Described herein are thermoplastic composites including a polymer matrix, having a at least one semi-crystalline polyphthalamide (“PPA”) polymer, and at least one continuous reinforcing fiber. It was surprisingly discovered that incorporation of semi-crystalline PPA polymers, having a selected melt profile, into the polymer matrix provided for crack-free thermoplastic composites. Based at least in part on the semi-crystalline structure of PPA polymers, the thermoplastic composite can have improved tensile strength, chemical resistance and thermal stability, relative to composites incorporating an amorphous PPA polymer. The composites can be formed using melt impregnation techniques, well known in the art. The composites can be desirably used in a wide range of application settings including, but not limited to automotive, aerospace, automotive and oil and gas and mobile electronic device applications.

POLYIMIDE POLYMER, POLYIMIDE FILM HAVING THE SAME AND POLYIMIDE LAMINATE HAVING THE SAME

A polyimide polymer, polyimide film and polyimide laminate plate including the same are provided. The polyimide polymer includes Formula (I), Formula (II) and Formula (III). 2. The polyimide polymer of claim 1 , wherein a ratio of B:B′:B″ is 4:3:3 or 3:2:5.4. The polyimide polymer of claim 1 , wherein A further comprises A′ and A″ claim 1 , A′ is aromatic group with fluorine but without fluorenyl group claim 1 , A″ is aromatic group with fluorine and fluorenyl group claim 1 , and a ratio of A′:A″ is between 1:1 and 9:1.9. The polyimide film of claim 8 , wherein a ratio of B:B′:B″ is 4:3:3 or 3:2:5.11. The polyimide film of claim 8 , wherein A further comprises A′ and A″ claim 8 , A′ is aromatic group with fluorine but without fluorenyl group claim 8 , A″ is aromatic group with fluorine and fluorenyl group claim 8 , and a ratio of A′:A″ is between 1:1 and 9:1.15. The polyimide film of claim 8 , further comprising a colorant claim 8 , the colorant being blended into the thin film layer claim 8 , and the colorant is selected from the group consisting of titanium dioxide claim 8 , aluminium oxide claim 8 , calcium carbonate claim 8 , calcium sulfate claim 8 , silicon dioxide claim 8 , boron nitride claim 8 , carbon black claim 8 , ultramarine claim 8 , copper phthalocyanine and combinations thereof.16. The polyimide film of claim 8 , further comprising an inorganic nanoparticle claim 8 , the inorganic nanoparticle being blended into the thin film layer claim 8 , and the inorganic nanoparticle is selected from the group consisting of silicon dioxide claim 8 , talcum powder claim 8 , mica claim 8 , clay claim 8 , titanium dioxide and combinations thereof.18. The polyimide laminate plate of claim 17 , wherein a ratio of B:B′:B″ is 4:3:3 or 3:2:5.20. The polyimide laminate plate of claim 17 , wherein A further comprises A′ and A″ claim 17 , A′ is aromatic group with fluorine but without fluorenyl group claim 17 , A″ is aromatic group with fluorine and fluorenyl group claim ...

THERMOPLASTIC COMPOSITES

Provided are thermoplastic composites having improved flexural properties. 1. A thermoplastic composite comprising a fibrous material selected from the group consisting of non-woven structures , textiles , fibrous battings and combinations thereof , said fibrous material being impregnated with a matrix resin composition , wherein the matrix resin composition is selected from polyamide compositions comprising an aliphatic polyamide , a semi-aromatic polyamide , and blends of the foregoing , and from 0.1 to 3.0 wt % of one or more diamines , based on the matrix resin composition.2. The thermoplastic composite of claim 1 , wherein the fibrous material is selected from (a) non-woven structures that have random fiber orientation with chopped or continuous fiber in the form of a mat claim 1 , a needled mat or a felt; (b) non-woven structures that have aligned fiber orientation claim 1 , in the form of unidirectional fiber strands; (c) multi-axial textiles; and combinations thereof.3. The thermoplastic composite of claim 1 , wherein the fibrous material comprises or consists of carbon fiber.4. The thermoplastic composite of claim 1 , wherein the matrix resin composition is selected from aliphatic polyamides claim 1 , and blends thereof.5. The thermoplastic composite of claim 1 , wherein the matrix resin composition is selected from semi-aromatic polyamides and blends thereof.6. The thermoplastic composite of claim 1 , wherein the matrix resin composition is selected from blends of one or more aliphatic polyamides with one or more semi-aromatic polyamides.7. The thermoplastic composite of claim 1 , wherein the matrix resin composition is selected from the group consisting of:(1) an aliphatic polyamide selected from poly(ε-caprolactam) (PA 6), poly(hexamethylene hexanediamide) (PA 66), poly(1,3-trimethylene hexanediamide) (PA3,6), poly(tetramethylene hexanediamide (PA46), poly(pentamethylene hexanediamide (PA56), hexamethylene dodecanediamide (PA612), poly(pentamethylene ...

COMPOSITION MADE FROM POLYAMIDE MXD.10

The invention concerns a composition comprising a first polyamide, a second polyamide, different from the first polyamide, and 0.1 to 5% by weight of carbonaceous nanofillers, in which: a) the first polyamide comprises a unit derived from the condensation of meta-xylylene diamine or from a mixture of meta-xylylene diamine and para-xylylene diamine with sebacic acid, said first polyamide having a melting temperature Tf; and b) the second polyamide has a melting temperature Tfhigher than or equal to Tf−40° C. The invention also relates to a method for producing said composition and the use thereof for producing various items. 1. A composition comprising a first polyamide , a second polyamide distinct from the first polyamide and from 0.1 to 5% by weight of carbon-based nanofillers , in which:{'sub': '1', 'the first polyamide comprises a unit resulting from the condensation of meta-xylylenediamine or of a mixture of meta-xylylenediamine and para-xylylenediamine with sebacic acid, said first polyamide exhibiting a melting point Tf;'}{'sub': 2', '1, 'the second polyamide exhibits a melting point Tfof greater than or equal to Tf−40° C.'}2. The composition as claimed in claim 1 , in which the carbon-based nanofillers are selected from the group consisting of carbon nanotubes claim 1 , carbon nanofibers claim 1 , carbon black claim 1 , graphene and the mixtures of these.3. The composition as claimed in claim 1 , comprising from 0.2 to 2% by weight of carbon-based nanofillers.4. The composition as claimed in claim 1 , in which the second polyamide exhibits a melting point Tfsuch that Tf−40° C.≦Tf Подробнее

FLAME RETARDANT POLYAMIDE COMPOSITION

Flame retardant polyamide compositions comprise (A) a semi-crystalline semi-aromatic polyamide having a melting temperature (TmA) and having a number average molecular weight in the range between 7,500 and 30,000 g/mol; (B) a semi-crystalline aliphatic polyamide having a melting temperature (TmB); and having a number average molecular weight in the range between 7,500 and 50,000 g/mol; and (C) a halogen free flame retardant system comprising a metal salt of a phosphinic acid and/or a diphosphinic acid, wherein TmA is higher than TmB and weight ratio of (A):(B) is in the range between 50:50 and 75:25. Process for moulding the flame retardant polyamide composition, and moulded parts made of the flame retardant polyamide composition are also provided. 1. An injection molded part made of a flame retardant polyamide composition consisting of(A)/(B) 30-90 wt. % of a polyamide (A) and a polyamide (B) in a weight ratio in the range between 50:50 and 75:25 of the polyamide (A) to the polyamide (B);(C) 5-25 wt. % of metal(di)phosphinate;(D) 0-60 wt. % of inorganic fillers and/or fibrous reinforcing agents; and(E) 0-40 wt. % of other components;wherein the polyamide (A) is a semi-crystalline semi-aromatic polyamide having a melting temperature (TmA) and a number average molecular weight (Mn-A) in the range between 7,500 and 30,000 g/mol; and the polyamide (B) is a semi-crystalline aliphatic polyamide having a melting temperature (TmB) and a number average molecular weight (Mn—B) in the range between 7,500 and 50,000 g/mol;); and wherein TmA is higher than TmB.2. The injection molded part according to claim 1 , wherein the flame retardant polyamide composition consists of(A)/(B) 30-87 wt. % of polyamide (A) and polyamide (B) in a weight ratio in the range between 50:50 and 75:25 of the polyamide (A) to the polyamide (B);(C) 7.5-20 wt. % of metal(di)phosphinate;(D) 5-55 wt. % of inorganic fillers and/or fibrous reinforcing agents; and(E) 0.5-20 wt. % of other components.3. The ...

Metal-plastic hybrid component

The invention relates to a polymer composition, and to a semifinished plastics product, the surface of which has been formed at least to some extent from the polymer composition. The invention further relates to a production process associated therewith for the semifinished plastics product. A feature of the polymer composition is that it comprises from 50 to 99.7% by weight of a polymer and from 0.3 to 20% by weight of one or more adhesion-promoting additives. The invention further relates to plastics-metal hybrid components and production of these.

Mixed waste plastics compatibilizers for asphalt

An asphalt modifier includes bitumen, polyolefin particles, and one or more alkyl terephthalamides. Preparing an asphalt modifier includes combining one or more alkyl terephthalamides, polyolefin particles, and bitumen, and dispersing the polyolefin particles in the bitumen to yield the asphalt modifier. Digesting polyethylene terephthalate includes combining polyethylene terephthalate with an alkylamine or carboxyalkylamine to yield a reaction mixture, and heating the reaction mixture to a temperature between about 20° C. and about 300° C. to yield an alkyl terephthalamide.

POLYMER-HYBRID CARBON FILLER COMPOSITE AND METHOD FOR PREPARING THE SAME

A polyamide/hybrid carbon filler composite is disclosed. The composite includes a polyamide as a matrix and a hybrid carbon filler dispersed in and bonded to the polyamide matrix. The hybrid carbon filler is composed of a nano carbon and a carbon fiber. Also disclosed is a method for preparing the polyamide/hybrid carbon filler. The method includes simultaneously subjecting a mixture of a polyamide and a hybrid carbon filler to mechanofusion and plasma treatments. 1. A method for preparing a polyamide-carbon filler composite , comprising simultaneously subjecting a mixture of a polyamide and a carbon filler to mechanofusion and plasma treatments.2. The method according to claim 1 , wherein the mechanofusion treatment is performed by rotating the mixture of a polyamide and a carbon filler under a pressure lower than atmospheric pressure.3. The method according to claim 2 , wherein the plasma treatment is performed by applying a voltage to a chamber for the mechanofusion treatment.4. The method according to claim 3 , wherein the pressure is from 100 to 1 claim 3 ,000 Pa claim 3 , the rotational speed is from 100 to 5 claim 3 ,000 rpm claim 3 , the voltage is from 0.5 to 5 kV claim 3 , and the mechanofusion and plasma treatments are performed for 5 to 30 min.5. The method according to claim 4 , wherein the mechanofusion and plasma treatments are performed in an atmosphere of a gas selected from nitrogen claim 4 , air claim 4 , argon claim 4 , oxygen claim 4 , and mixed gases thereof.6. The method according to claim 5 , wherein the carbon filler is composed of a carbon fiber alone or is a mixture of a carbon fiber and a nano carbon.7. The method according to claim 6 , wherein the polyamide claim 6 , the carbon fiber claim 6 , and the nano carbon are present in amounts of 46 to 94% by weight claim 6 , 5 to 50% by weight claim 6 , and 0.1 to 5% by weight claim 6 , respectively.8. The method according to claim 7 , wherein the polyamide claim 7 , the carbon fiber claim 7 , ...

METHOD FOR PREPARING AN IMPREGNATED FIBROUS MATERIAL BY REACTIVE PULTRUSION

A method for manufacturing at least one impregnated fibrous material including a fibrous material made of continuous fibers and at least one thermoplastic polymer, the method including a step of impregnating the at least one fibrous material in a pultrusion head by injecting a reactive composition in the melt state including at least one precursor of the thermoplastic polymer in the presence of the fibrous material, the at least one fibrous material on entry into the pultrusion head being divided in its thickness into layers, with each layer circulating in its own channel within the pultrusion head, the reactive composition being injected into each channel and/or between the layers when they are recombined at the exit from each channel, the channel being heated, in which the precursors of the thermoplastic polymer are at least partly polymerized. 1. A method for manufacturing at least one impregnated fibrous material comprising a fibrous material (or ravings) made of continuous fibers and at least one thermoplastic polymer having a glass transition temperature Tg more than or equal to 40° C. , or a melting temperature Tm less than or equal to 400° C. , the glass transition temperature Tg and the melting temperature Tm being measured by DSC according to standard ISO 11357-2: 2013 and ISO 11357-3: 2013 , respectively ,wherein said method comprises a step of impregnating, in a pultrusion head, said at least one fibrous material by injecting a reactive composition in the melt state comprising at least one precursor of said thermoplastic polymer in the presence of said fibrous material,said at least one fibrous material being, when it enters said pultrusion head, divided in its thickness into n layers, n being from 2 to 20,each layer circulating in said pultrusion head in a channel that is specific to it,said reactive composition being injected in each channel and/or between said layers when they are recombined at the exit from each channel,said channel being heated to a ...

METHODS OF MODIFYING SURFACES OF STRUCTURES USED IN THE MANUFACTURE OF A SEMICONDUCTOR DEVICE VIA FLUORINATION

Methods are disclosed for modifying surfaces of a structure used in manufacturing semiconductor devices wherein the structures are formed from organic polymers. In addition to the surface of the structure, which is over a core, a portion of the structure slightly below the surface is also modified via fluorination of the organic polymer. The fluorination is achieved by exposing the structure to a mixture of gases including fluorine in a range from about 0.01% to about 10% and inert gas comprising a remainder of the mixture of gases. Fluorination occurs from the surface into the core to a depth of no more than about 1 micron and such that a portion of the core below more than 1 micron from the surface is not fluorinated. 1. A method , comprising:obtaining a structure configured to be used in manufacturing a semiconductor device, wherein the structure comprises a surface over a core, wherein the core and the surface are formed from an organic polymer;{'sub': 2', '2, 'exposing the structure to a mixture of gases comprising Fand at least one inert gas such that the organic polymer is fluorinated from the surface into the core to a depth of no more than about 1 micron and such that a portion of the core below more than 1 micron from the surface is not fluorinated, wherein the mixture of gases comprises Fin a range from about 0.01% to about 10% and the inert gas comprises a remainder of the mixture of gases.'}2. The method of claim 1 , wherein the organic polymer is at least one of aliphatic polymers claim 1 , aromatic polymers claim 1 , semi-aromatic polymers claim 1 , and polyolefins.3. The method of claim 2 , wherein the polyolefin is at least one of polycarbonate claim 2 , polyethylene claim 2 , polypropylene claim 2 , and nylon.4. The method of claim 1 , wherein the inert gas comprises at least one of Nand He.5. The method of claim 1 , wherein the gas comprises Fin an amount less than about 5%.6. The method of claim 1 , wherein the gas comprises Fin an amount less ...

COMPOSITIONS AND METHODS FOR IMPROVING POLYMER FLOW RATE

The present disclosure provides a polymeric composition including a thermoplastic polymer and an ionic liquid compound, wherein the ionic liquid compound improves the melt flow rate of the polymeric composition. The present disclosure also provides a method of preparing a polymeric composition with improved melt flow rate by mixing an ionic liquid compound with a thermoplastic polymer to obtain the polymeric composition. In some aspects, the polymeric composition includes a recycled polymer. 2. The method of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of polycarbonates claim 1 , polyolefins claim 1 , polyimides claim 1 , polyphthalamide claim 1 , polyamides claim 1 , polymethyl methacrylate claim 1 , polyamideimides claim 1 , polysulfones claim 1 , polyethersulfones claim 1 , polyurethane claim 1 , polyarylsulfones claim 1 , poly ketones claim 1 , polyphenylsulfones claim 1 , polyetherimides claim 1 , polyetherketones claim 1 , polyphenylene sulfoxide claim 1 , thermoplastic vulcanizate and combinations thereof.3. The method of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of rubber claim 1 , fiber claim 1 , plastic claim 1 , adhesive polymer claim 1 , polymer paint claim 1 , polymer composite claim 1 , engineering plastics claim 1 , thermoplastic elastomers claim 1 , and high temperature plastics.4. The method of claim 1 , wherein at least 25% of the thermoplastic polymer is a recycled polymer.5. The method of claim 1 , wherein the thermoplastic polymer is a high temperature polymer selected from the group consisting of polyamides claim 1 , polyamideimides claim 1 , polysulfones claim 1 , polyethersulfones claim 1 , polyarylsulfones claim 1 , poly ketones claim 1 , polyphenylsulfones claim 1 , polyetherimides claim 1 , polyetherketones claim 1 , polyphenylene sulfoxide claim 1 , and combinations thereof.6. The method of claim 1 , wherein the thermoplastic polymer is a thermoplastic elastomer ...

Polyamide Resin Composition for Slide Fastener, Slide Fastener Component, and Slide Fastener Provided with Same

Provided is a polyamide resin composition for a slide fastener that includes at least one polyamide resin and reinforcing fibers, wherein a total mass of the polyamide resin and the reinforcing fibers accounts for 90% by mass or more of the composition; wherein poly(m-xylylene adipamide) (MXD 6) accounts for 60% by mass or more of the polyamide resin; wherein reinforcing fibers account for 45 to 70% by mass of the total mass of the polyamide resin and the reinforcing fibers; wherein both first reinforcing fibers having a fiber diameter of from 5 to 7 μm and second reinforcing fibers having a fiber diameter larger than that of the first reinforcing fibers by more than 2 μm account for 90% by mass or more of the reinforcing fibers; and wherein the first reinforcing fibers account for 20% by mass or more and less than 50% by mass of the reinforcing fibers. 1. A polyamide resin composition for a slide fastener , comprising at least one polyamide resin and reinforcing fibers ,wherein a total mass of the polyamide resin and the reinforcing fibers accounts for 90% by mass or more of the composition;wherein poly(m-xylylene adipamide) (MXD 6) accounts for 60% by mass or more of the polyamide resin;wherein the reinforcing fibers account for from 45 to 70% by mass of the total mass of the polyamide resin and the reinforcing fibers;wherein both first reinforcing fibers having a fiber diameter of from 5 to 7 μm and second reinforcing fibers having a fiber diameter larger than that of the first reinforcing fibers by more than 2 μm account for 90% by mass or more of the reinforcing fibers; andwherein the first reinforcing fibers account for 20% by mass or more and less than 50% by mass of the reinforcing fibers.2. The polyamide resin composition according to claim 1 , wherein the polyamide resin further comprises an aliphatic polyamide having a water absorption rate lower than that of poly(m-xylylene adipamide) (MXD 6).3. The polyamide resin composition according to claim 2 , ...

PROCESS FOR PREPARING A BIAXIALLY ORIENTED MULTILAYERED FILM

The invention relates to a process for preparing a biaxially oriented multilayered film, the film comprising at least one layer comprising a polyolefin composition and at least one layer comprising a polyamide composition, the process comprising the steps of: a) Melting a polyamide composition comprising: i. a semi-crystalline polyamide Y comprising: ⋅monomeric units derived from caprolactam in an amount of at least 75 wt %; ⋅monomeric units derived from an aliphatic diamine in an amount of between 2.5 and 12.5 wt %; ⋅monomeric units derived from an aromatic diacid in an amount of between 2.5 and 12.5 wt %; wherein the weight percentage is given with respect to the total weight of the polyamide Y; ii. an amorphous polyamide in an amount of between 2.5 and 50 wt % with respect to the total weight of the polyamide composition; wherein the amorphous polyamide comprises: ⋅monomeric units derived from an aliphatic diamine X in an amount of between 30 and 70 wt %; ⋅monomeric units derived from an aromatic diacid in an amount of between 30 and 70 wt %; wherein the weight percentage is given with respect to the total weight of the amorphous polyamide; b) Melting a composition comprising a polyolefin; c) Co-extruding at least the melts obtained from a) and b) to form a film of at least two layers; d) Cooling the film to a temperature of at most 50° C., while the film is transported in a direction, referred to as machine direction; e) Stretching the film obtained in step d) with a stretch ratio of at least 13, at a temperature between the Tg of polyamide Y and Tm of the polyolefin, wherein the stretch ratio is defined as being the product of the stretch ratio parallel to the machine direction and the stretch ratio perpendicular to the machine direction. The invention also relates to a biaxially oriented multilayered film obtainable by the process. 1. Process for preparing a biaxially oriented multilayered film , the film comprising at least one layer comprising a polyolefin ...

FIBER-REINFORCED COMPOSITES MADE WITH THERMOPLASTIC RESIN COMPOSITIONS AND REACTIVE COUPLING FIBERS

Methods of making fiber-resin compositions are described. The methods may include the providing of a thermoplastic resin to an extruder, where the thermoplastic resin may include at least one reactive moiety capable of forming a covalent bond with a coupling agent on a plurality of reactive fibers. The methods may further include combining the thermoplastic resin with the plurality of reactive fibers also supplied to the extruder. The reactive fibers are sized with the coupling agent that reacts with the thermoplastic resin to form the fiber-resin composition, which may be extruded from the extruder. Methods of making fiber-reinforced composite articles from the fiber-resin composition are also described. 1. A method of making a fiber-resin composition , the method comprising:providing a thermoplastic resin to an extruder, wherein the thermoplastic resin comprises at least one reactive moiety capable of forming a covalent bond with a coupling agent on a plurality of reactive fibers;combining the thermoplastic resin with a plurality of the reactive fibers that are also supplied to the extruder, wherein the plurality of reactive fibers are sized with the coupling agent; andextruding the fiber-resin composition from the extruder, wherein the thermoplastic resin reacts with the coupling agent on the reactive fibers to covalently bond the thermoplastic resin and the plurality of fibers in the fiber-resin composition.2. The method of claim 1 , wherein the thermoplastic resin comprises a polyamide polymer.3. The method of claim 2 , wherein the polyamide polymer is chosen from polyamide—6; polyamide—6 claim 2 ,6; polyamide—6 claim 2 ,12; polyamide—4 claim 2 ,6; polyamide—6 claim 2 ,10; polyamide—12; polyamide 6T (polyhexamethylene terephthalamide); and polyamide 6I (polyhexamethylene isophthalamide).4. The method of claim 1 , wherein the thermoplastic resin is chosen from polybutylene terephthalate claim 1 , thermoplastic polyurethane claim 1 , poly(styrene-co-maleic ...

Polyamide beads and method for the production thereof

Certain polyamide beads or granules are useful as a sustaining material for underground natural or artificial cracks of the earth's crust essentially employed for the extraction of hydrocarbons such as crude oil or natural gas; such polyamide beads have a spherical or ellipsoidal shape and have a surface free of concave portions, advantageously having a uniform shape, and having a mean diameter lower than or equal to 1.7 mm and a porosity lower than 0.1 ml/g, and are produced using a particular cutting device/extruder.

Method for heat-treating powders

The present invention relates to a process comprising a step of heat treatment of a polyamide-based powder so as to reduce the difference between the initial crystal rearrangement temperature and the final crystal rearrangement temperature. The invention also relates to articles obtained by using powders that have undergone this treatment, in particular by selective melting of layers of polymer powder, in particular rapid prototyping by solid-phase sintering using a laser.

RESIN PELLET, RESIN PELLET MANUFACTURING METHOD, AND MOLDED ARTICLE MANUFACTURING METHOD

Carbodiimide is added to a molten polyamide resin so as to provide resin pellets. The percentage of residual unreacted carbodiimide to each resin pellet is 0.03% to 0.33% by mass. Manufacturing molded articles using the resin pellets achieves both of an improvement in mechanical strength and an increase in wear resistance, and reduces property variations among the molded articles. 1. A resin pellet comprising:a polyamide resin; anda carbodiimide group, whereina percentage of the carbodiimide group to the resin pellet is 0.03% to 0.33% by mass.2. The resin pellet according to claim 1 , whereinthe percentage of the carbodiimide group to the resin pellet is 0.06% to 0.25% by mass.3. The resin pellet according to claim 1 , wherein cutting a thin piece from the pellet,', 'measuring an intensity of the carbodiimide group (—N═C═N—) by passing infrared rays through the thin piece, and', "quantifying a concentration of the carbodiimide group in the thin piece by Lambert-Beer's law."], 'determining the mass percentage of the carbodiimide group involves'}4. The resin pellet according to claim 2 , wherein cutting a thin piece from the pellet,', 'measuring an intensity of the carbodiimide group (—N═C═N—) by passing infrared rays through the thin piece, and', "quantifying a concentration of the carbodiimide group in the thin piece by Lambert-Beer's law."], 'determining the mass percentage of the carbodiimide group involves'}5. The resin pellet according to claim 1 , whereinthe carbodiimide group is bound to an aromatic structure.6. The resin pellet according to claim 2 , whereinthe carbodiimide group is bound to an aromatic structure.7. The resin pellet according to claim 1 , further comprising a lubricant.8. The resin pellet according to claim 2 , further comprising a lubricant.9. The resin pellet according to claim 7 , whereinthe lubricant heated by TG-DTA at 10° C./min in a nitrogen atmosphere is reduced in weight by 10% at a temperature of 340° C. or above.10. The resin ...

Reinforcing Fiber Bundle and Method for Producing Same

A fiber reinforcing bundle with a sizing agent adhering to the surface thereof is provided, in which the sizing agent contains a thermoplastic resin as a main component and an emulsion or a dispersion, and in which a melt viscosity of a solid content of the sizing agent at 150° C. and at a shear rate of 10 sis 50 to 300 Pa·s; and a method for producing the fiber reinforcing bundle. Preferably, the sizing agent contains a water-soluble polymer, the sizing agent contains a hardly water-soluble polymer, and the reinforcing fiber bundle is a carbon fiber bundle. 1. A reinforcing fiber bundle with a sizing agent adhering to a surface thereof ,wherein the sizing agent comprises a thermoplastic resin as a main component and an emulsion or a dispersion, and{'sup': '−1', 'wherein a melt viscosity of a solid content of the sizing agent at 150° C. and at a shear rate of 10 sis 50 to 300 Pa·s.'}2. The reinforcing fiber bundle according to claim 1 , wherein the melt viscosity of the solid content of the sizing agent at 250° C. and at a shear rate of 50 sis 10 to 200 Pa·s.3. The reinforcing fiber bundle according to claim 1 , wherein the sizing agent contains a water-soluble polymer.4. The reinforcing fiber bundle according to claim 1 , wherein the sizing agent contains particles of an emulsion or dispersion-derived polymer component.5. The reinforcing fiber bundle according to claim 1 , wherein the reinforcing fiber bundle is a carbon fiber bundle.6. The reinforcing fiber bundle according to claim 1 , wherein the solid content of the sizing agent is a mixture of two or more polymers claim 1 , and contains at least one or more hardly water-soluble polymers.7. A method for producing a reinforcing fiber bundle claim 1 , comprising adhering a processing liquid claim 1 , in which a melt viscosity of a solid content at 150° C. is 50 to 300 Pa·s and which contains an emulsion or a dispersion claim 1 , to the surface of a fiber bundle constituted by reinforcing fibers claim 1 , and ...

Adaptive vapor barrier

The present invention relates to the use, as water vapour barrier, of a film, of a textile or of a layer of material P, said material P comprising, or even consisting of, at least one copolymer A which is a polyamide of PAXY/XAIS M n+ 1/n type or of PAZ/XAISM n+ 1/n type. It also relates to a construction element comprising a film, a textile or a layer of said material P and a construction material.

POLYAMIDE-BASED FILM, PREPARATION METHOD THEREOF, COVER WINDOW AND DISPLAY DEVICE COMPRISING THE SAME

The embodiments relate to a polyamide-based film that is excellent in optical properties and mechanical properties, to a process for preparing the same, and to a cover window and a display device comprising the same. There are provided a polyamide-based film, which comprises a polyamide-based polymer and has a plasticity characteristic value represented by the following equation of 18.45 to 19.97%, a process for preparing the same, and a cover window and a display device comprising the same: Plasticity characteristic value (%)=(100−nIT)/(HIT/HM). In this equation, nIT, HIT, and HM are measured according to the ISO 14577 standard with a nanoindenter, nIT is the elasticity (%), HIT is the indentation hardness (N/mm), and HM is the composite hardness (N/mm). 1. A polyamide-based film , which comprises a polyamide-based polymer , wherein the plasticity characteristic value represented by the following Equation 1 is 18.45 to 19.97%:{'br': None, 'i': −nIT', 'HIT/HM, 'Plasticity characteristic value (%)=(100)/()\u2003\u2003[Equation 1]'}{'sup': 2', '2, 'in Equation 1, nIT, HIT, and HM are measured according to the ISO 14577 standard with a nanoindenter, nIT is the elasticity (%), HIT is the indentation hardness (N/mm), and HM is the composite hardness (N/mm).'}2. The polyamide-based film of claim 1 , wherein the polyamide-based polymer comprises an amide-based repeat unit and an imide-based repeat unit at a molar ratio of 100:0 to 90:10.3. The polyamide-based film of claim 2 , wherein the amide-based repeat unit comprises a first amide-based repeat unit derived from a first dicarbonyl compound and a second amide-based repeat unit derived from a second dicarbonyl compound claim 2 , andthe angle between the two carbonyl groups contained in the first dicarbonyl compound is greater than the angle between the two carbonyl groups contained in the second dicarbonyl compound.4. The polyamide-based film of claim 3 , wherein the molar ratio of the repeat unit derived from the first ...

Semipermeable composite membrane and method for producing same

Provided are: a semipermeable composite membrane having high fouling resistance against membrane; and a method for producing the semipermeable composite membrane. This semipermeable composite membrane comprises a substrate, a porous support layer disposed on the substrate, and a separation functional layer disposed on the porous support layer, wherein the separation functional layer contains: from the porous support layer side, a first layer containing a crosslinked aromatic polyamide which is a polymer of a polyfunctional aromatic amine and a polyfunctional aromatic acid chloride; and an aliphatic polyamide which is present on the first layer and which is a polymer of a polyfunctional aliphatic carboxylic acid and a polyfunctional aliphatic amine.