КОМПОЗИЦИИ, СОДЕРЖАЩИЕ ПОЛИКАРБОНАТ

Изобретение относится к формовочной композиции, содержащей поликарбонат. Композиция дополнительно содержит одно или несколько различных соединений общей формулы (Ia): где а равно от 1 до 20, b равно от 1 до 25, с равно от 10 до 40, и одно или несколько различных соединений общей формулы (Iб): где а' равно 0, b' равно от 1 до 25 и с' равно от 10 до 40, при этом содержание соединений формулы (Ia)+(Iб) составляет от 0,02 до 1,0% масс. Также изобретение относится к изделию и многослойному изделию. Изобретение позволяет получить формовочную массу, не приводящую к образованию повреждений поверхности полученного из нее изделия. 3 н. и 7 з.п. ф-лы, 1 табл.

СТАБИЛИЗАТОРЫ ДЛЯ ЭМУЛЬСИОННЫХ СЫРЫХ КАУЧУКОВ, СИНТЕТИЧЕСКОГО ЛАТЕКСА И НАТУРАЛЬНОГО КАУЧУКОВОГО ЛАТЕКСА

Изобретение относится к композициям, содержащим эмульсионный сырой каучук, синтетический латекс или натуральный каучуковый латекс, подверженный окислительной, тепловой, динамической и/или фотоиндуцируемой деградации. Описывается композиция, содержащая а) сырой эмульсионный каучук, синтетический латекс или натуральный каучуковый латекс, подверженный окислительной, тепловой, механической и/или фотоиндуцируемой деградации, и b) в качестве стабилизатора, по крайней мере, одно соединение формулы I где R1 – С8-С20алкил, и с) в качестве другого стабилизатора, по крайней мере, одно соединение формулы II: где R2 - С8-С12алкил, R3 - водород, С1-С12алкил, циклогексил, 1-метилциклогексил, бензил, α-метилбензил, α,α-диметилбензил или –CH2-S-R2, R4– С1-С12алкил, бензил, α-метилбензил, α,α-диметилбензил или -C2-S-R2, и R5 - водород или метил. Описывается также способ стабилизации с использованием указанной смеси соединений I и II. Предложенная смесь стабилизаторов обладает повышенной эффективностью по ...

ПОЛИАМИДНАЯ КОМПОЗИЦИЯ, СТАБИЛИЗИРОВАННАЯ С ПОМОЩЬЮ КОМПЛЕКСОВ МЕДИ И ОРГАНИЧЕСКИХ ГАЛОИДНЫХ СОЕДИНЕНИЙ, СТАБИЛИЗАТОР И СПОСОБ ПОЛУЧЕНИЯ КОМПОЗИЦИИ

Описана полиамидная композиция, включающая полиамид и стабилизатор, причем в качестве стабилизатора композиция содержит по меньшей мере один комплекс меди с фосфиновым соединением и/или меркаптобензимидазольным соединением и по меньшей мере одно органическое галоидное соединение, при этом количество меди составляет 10 - 1000 ч/млн, количество галогена составляет 50 - 30000 г/млн, при молярном соотношении медь:галоген, равном 1:1-1:3000. Также описаны стабилизатор и способ получения полиамидной композиции. Использование в полиамидной композиции нового стабилизатора позволяет повысить стойкость к токам утечки, термостабильность при температурах выше 150oС, а также устойчивость к экстракции. 3 с. и 6 з.п. ф-лы, 6 табл.

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ

Использование: для изготовления литьевых изделий конструкционного назначения. Сущность: полимерную композицию готовят смешением в экструдере компонентов: 100 мас.ч. полиалкилентерефталата, 2,0 10,0 мас.ч. высокомолекулярной модифицированной эпоксидной смолы, 0,2 1,0 мас.ч. (ди)ангидрида ароматической ди-, три- или тетракарбоновой кислоты, 0,2 2,0 мас.ч. термостабилизатора и 2,0 90 мас.ч. наполнителя. Высокомолекулярную эпоксидную смолу получают взаимодействием низкомолекулярной эпоксидиановой смолы мол.м.340 600 с техническим диоксидифенилсульфоном, фталевым ангидридом и три (n-аминофенил)метаном при их массовом соотношении (50 94) (4,8 - 27,5) (0,5 14,5) (0,7 8,0) соответственно. На основе композиции изготавливают изделия литьем под давлением. 4 табл.

СТАБИЛИЗАТОР ДЛЯ ПОЛИУРЕТАНОВ НА ОСНОВЕ ПРОСТЫХ ПОЛИЭФИРОВ И АРОМАТИЧЕСКИХ ДИИЗОЦИАНАТОВ

Использование: для получения полиуретанов на основе простых полиэфиров и ароматических диизоцианатов. Сущность изобретения: в результате сочетания бис-(4-окси-3, 5-ди-трет-бутилфенилпропиогидразидо)фосфита с 2,2,6,6-тетраметилпиперидиламид- 2′,2′,6′,6′ -тетраметилпиперидиламинопропионовой кислоты при их массовом соотношении 1 : (1 - 5). Полиуретановые пленки, содержащие стабилизатор, длительное время сохраняют первоначальный цвет. 1 табл.

Способ получения стабилизатора многофункционального действия для хлорсодержащих полимеров

Изобретение относится к химии полимеров, а именно к способам получения комплексных стабилизаторов поливинилхлорида, и может быть использовано при переработке композиций хлорсодержащих полимеров в различные изделия (пленочные материалы, кабельные пластикаты, профили, строительные материалы, трубы и т.д.). Способ реализуется путем взаимодействия на первой стадии монокарбоновых кислот в количестве 0,5 моль со смесью окисей Вa, Zn или Са в присутствии фенольного антиоксиданта и сложноэфирного пластификатора при нагревании до 130-150°С до достижения кислотного числа не более 5 мг KОН/г, далее в реакционную массу добавляют остаточное количество монокарбоновой кислоты в количестве 0,2 моль и глицерина и ведут синтез при температуре 165°С до достижения кислотного числа 5-10 мг KОН/г, далее реакционную массу охлаждают до 40-45°С и добавляют эпоксидированное соевое масло, полиглицерин и фосфит НФ, полученную смесь перемешивают в течение 20 минут. Задачей изобретения является расширение ассортимента ...

Термопластичная композиция

Изобретение относится к термопластичной композиции, предназначенной для использования в кабельной промышленности, в производстве упаковочного материала и других изделий. Композиция содержит следующие компоненты, мас.%: 91,5-91,9 полиэтилена низкой плотности, 0,1-0,2 термостабилизатора фенольного или фосфитного типа, 8,0-8,3 УФ-светостабилизатора. В качестве термостабилизатора фенольного типа используют эфир 3,5-ди-трет-бутил-4-гидроксифенилпропионовой кислоты и пентаэритрита, в качестве термостабилизатора фосфитного типа используют смесь эфира 3,5-ди-трет-бутил-4-гидроксифенилпропионовой кислоты и пентаэритрита и три-(2,4-ди-трет-бутилфенил)фосфита в массовом соотношении 1:1, в качестве УФ-светостабилизатора используют 30%-ный концентрат технического углерода на основе полиэтилена низкой плотности. Изобретение позволяет повысить технологические показатели композиции, в частности повысить текучесть расплава, термостабильность и стойкость к растрескиванию, при сохранении на высоком уровне ...

ПОЛИМЕРНАЯ КОМПОЗИЦИЯ НА ОСНОВЕ ПОЛИВИНИЛБУТИРАЛЯ И МНОГОСЛОЙНОЕ СТЕКЛО ИЗ СИЛИКАТНЫХ СТЕКЛЯННЫХ ПЛАСТИН С ПРОМЕЖУТОЧНЫМ СЛОЕМ

Использование: полимерная композиция на основе поливинилбутираля и многослойное стекло из силикатных стеклянных пластин с промежуточным слоем из полимерной поливинилбутиральной композиции. Сущность изобретения: полимерная композиция содержит поливинилбутираль и стабилизатор против окисления. Стабилизатор является многоядерным фенолом, в котором в пара-положении к фенольной гидроксильной группе находится четвертичный C-атом. В случае необходимости многоядерный фенольный стабилизатор содержит синергические совместимые стабилизаторы из класса азотсодержащих соединений, серусодержащих соединений. Композиция содержит пластификатор и целевые добавки. Стекло содержит пленку из вышеуказанной композиции толщиной 0,2 - 2 мм. 2 с. и 24 з.п. ф-лы, 1 табл.

ТЕРМОПЛАСТИЧНАЯ ПОЛИМЕРНАЯ КОМПОЗИЦИЯ

Термопластичная полимерная композиция, включающая поликарбонат, сополимер акрилонитрила, бутадиена и стирола и термостабилизатор, отличающаяся тем, что в качестве термостабилизатора она содержит производное дифосфитпентаэритрита и арилфосфат при следующем соотношении компонентов, мас.ч.: Поликарбонат - 20 - 80 Сополимер акрилонитрила, бутадиена и стирола - 20 - 80 Производное дифосфитпентаэритрита - 0,05 - 0,5 Арилфосфат - 1 - 4о ...

Эластомерная термопластичная композиция

Stabilisator und thermoplastische Zusammensetzungen, die diese enthalten

Reifenlauffläche mit farbigen Nuten

Verfahren zum Stabilisieren von festen Polyolefinen

VERFAHREN ZUR HERSTELLUNG ALIPHATISCHER POLYESTER

TRANSPARENTE, SCHLAGZÄHMODIFIZIERTE THERMOPLASTISCHE FORMMASSEN

Verfahren zur Herstellung von Mischungen, die einen Polyester, ein Polyphenylenoxid und Block-und/oder Pfropfcopolymere auf der Basis vom Polyester und Polyphenylenoxid enthalten.

POLYESTER/POLYCARBONAT BLENDS MIT VERMINDERTER GELBHEIT

POLYMERBLENDS

Farbige Polymermischungen mit Aminverbindungen als UV-Stabilisator

Die Erfindung betrifft farbstabile Mischungen, die mindestens ein transparentes Polymer, eine farbige Verbindung und ein Amin als UV-Stabilisator der farbigen Verbindung enthalten. DOLLAR A Die farbstabilen Mischungen können insbesondere zur Herstellung von Zwischenschichtfolien zur Herstellung von Verbundverglasungen verwendet werden.

Zusammensetzung für zeitweiligen Schutzanstrich.

ZUSAMMENSETZUNG ZUM SCHUTZ EINES FORMKÖRPERS VOR KORROSION

STABILISATOR FUER POLYVINYLCHLORID

Stabilisatoren für polymere organische Materialien

Processing stabilizers for polymeric materials e.g. polyolefins, especially alpha -polyolefins, comprise a) one or more phosphonites of formula I wherein R, R1, are organic radicals and m and n are 0 or 1 and Y is -O-, -S-, -CHR5- or -C6H4- b) a one or more nitrogen atoms containing guard agent and optionally c) a compound of formula II wherein R1, R3, are organic radicals and n and na are 0 or 1, and optionally d) a compound of formula IV and/or V R7(OH) (IV> R8(OH)2 (V), wherein R7 and R8 are organic radicals. The guard agent (b) in the claims is N, N, N', N<1>-tetrakis (2'-hydroxypropyl)ethylene diamine.

Flammhemmende Harzzusammensetzung und daraus geformte Produkte

MISCHUNGEN AUS PHOSPHOR-ENTHALTENDEN VERBINDUNGEN ZUR VERWENDUNG ALS POLYMERSTABILSATOREN

INTERNE FORMTRENN-ZUSAMMENSETZUNGEN, ENTHALTEND PHOSPHATESTER

HARZZUSAMMENSETZUNGEN

Halogenfreie flammhemmende thermoplastische Formmassen

POLYCARBONATE COMPOSITION

Novel Sulphur-Containing Phosphites and their use in the Stabilisation of Olefin Polymers

... 1,167,917. Sulphur-containing phosphites. NATIONAL DISTILLERS & CHEMICAL CORP. 13 Oct., 1967 [20 Oct., 1966], No. 46916/67. Heading C2C. [Also in Division C3] The invention comprises compounds of the general formula in which Y is a C 1 -C 10 alkylene group, R is a C 1 -C 12 alkyl group and n is an integer from one to five. They are prepared by reacting a tri - (chloroalkoxy) - phosphate and an alkylphenylthiosodium compound in the presence of nitrogen. In the examples, tri-(2-methyl-4- tert - butylphenylthioethyl) - phosphite and tri- (4 - tert - butylphenylthioethyl) - phosphite are prepared but many other compounds are also specified. The compounds are used as stabilizers for olefin polymers.

Stabilizer mixture based on polyalkyl-l-oxa-diazaspirodecane compounds

STABILISATION OF ELASTOMERS WITH ALIPHATIC-PHENYL DIAMINES AND ALIPHATIC PHOSPHITE COMPOUNDS

Elastomers such as guayule rubber is stabilized by the addition of an alkyl, cycloalkyl or alkyl substituted cycloalkyl phenyl-phenylenediamine compound with an alkyl, cycloalkyl or alkyl substituted cycloalkyl phosphite compound which, in combination, yield an unexpectant and synergistic result.

Rigid or semi-rigid PVC stabilised with N,N-dimethyl-6-aminouracils

Process for stabilising vinyl chloride polymers and copolymers

A process for the stabilisation of a polymer or copolymer of vinyl chloride, which process comprises incorporating a tertiary phosphite of isotridecyl alcohol in the polymer or copolymer, in an amount of from 0.1 to 5% by weight based on the weight of the polymer. The stabilising phosphite is advantageously used in conjunction with Ba-Cd or Ba-Zn soaps. It may also be combined with an epoxide such as epoxidised soya oil and/or an amino additive such as tris- isopropanolamine. The resultant plastics have an excellent long-term stability which is superior to that obtained when other trialkyl or alkylaryl phosphites are used.

Color improving stabilizing compositions comprising leucine

Stabilization of polyolefins

Substituted phosphorus compounds of formula: where R1 is alkylphenoxy, alkoxy, phenoxy or alkylthio; R is R1, hydroxyl or phenyl; R2 and R3 are alkyl; R4 is H or a C1-6 alkyl; and n is 0, 1, 2 or 3 are prepared by the following two methods. where R1, R11 and R111 are the same or different phenyl, alkyl, alkylphenyl or alkylarylalkylene; R2, R3, R4 and n are as before; R5 is a C1-6 alkyl or H and Hal is a halogen, e.g. Cl. where the R groups and n are as in (1) above.ALSO:A polyolefine, e.g. polypropylene, is stabilized against deterioration by incorporation of a minor amount of (1) a substituted phosphorus compound of formula: where R1 is alkylphenoxy, alkoxy, phenoxy or alkylthio; R is R1, hydroxyl or phenyl; R2 and R3 are alkyl; R4 is H or a C1-6 alkyl; and n is 0, 1, 2 or 3; (ii) (a) a phosphite compound of formula: where X, Y and Z are =O or =S; R6 and R7 are alkyl or alkylphenyl; and ...

Lactone compositions

Lactones are stabilized with a triorgano phosphite and optionally with an "alkylated phenol." By "alkylated phenol" is meant alkyl- or alkoxy-phenol. The lactone may be d -valerolactone or z-enantholactone, but is preferably t-caprolactone or an alkyl derivative. Suitable triorgano phosphites have the formula wherein each R6 is an alkyl, cycloalkyl, aryl, aralkyl or alkaryl radical. Any or all of the R6 radicals may be substituted by hydroxy, alkoxy, aryloxy, or acyloxy radicals. Suitable alkylated phenols are of the formula wherein each R1, R2, R4, R5 is hydrogen, alkyl, cycloalkyl, alkoxy, hydroxy or hydroxyalkylene, m is 0 or 1 and R3, depending on the value of m, is hydrogen, alkyl, alkylene, cycloalkyl, cycloalkylene, alkoxy, alkyleneoxy, hydroxy or oxy. Any or all of R1-R5 may be substituted by hydroxy, alkoxy, aryloxy, carbalkoxy or acyloxy.

Stabilization of Vicinal Epoxy Compounds

... 1,180,836. Stabilization of epoxides. ARGUS CHEMICAL CORP. 21 March, 1967 [4 April, 1966], No. 13193/67. Heading C2C. [Also in Division C3] Liquid epoxide compositions having improved resistance to discoloration and gelation and not curable by heating to 350‹ F., consist essentially of a liquid epoxide, containing only internal epoxy group and having a tendency to discolour and/or gel, and a stabilizing amount, insufficient to cure or polymerize the epoxide, of at least one organic phosphite ester containing at least two organic groups of 1-30 carbon atoms linked through oxygen to each phosphorus atom. The term "consisting essentially of" is defined as excluding from the compositions polyvinyl chloride resins and stabilizers for such resins, except the present phosphites. The compositions may include other inert diluents and solvents. Many epoxides which are stabilized by the organic phosphites are listed, in particular, epoxidized natural oils, epoxidized synthetic mono- and polyesters ...

Stabilization of polypropylene against degradative deterioration on ageing

... 945,441. Stabilizing polypropylene. ARGUS CHEMICAL CORPORATION. June 9, 1961 [June 15, 1960], No. 20991/61. Heading C3P. Polypropylene is stabilized with a combination of an organic phenol, an organic phosphite triester, an ester of thiodipropionic acid and optionally a salt of an organic acid and a Group II metal. The phenol may be monohydric or polyhydric and may be in the form of a phenate; those specified include bis-phenols and thio-bisphenols. The phosphite may be of formula (RA) 3 P in which A is O or S or wherein both O and S may be present in the same molecule. The ester of thiodipropionic acid may be a di-ester, may contain only one ester group, may contain a polymeric chain of ester units, or may also be a salt of a Group II metal (e.g. Zn, Ca, Cd, Ba, Mg or Sr). The optional salt of an organic acid is preferably that of Zn, Ca, Cd, Ba, Mg or Sr. Stabilization of propylene/ethylene copolymers or of polypropylene/polyethylene compositions is also within the scope of the invention ...

Organic phosphites containing polycyclic aromatic groups and synthetic resin compositions containing the same

Organic polyphosphite esters have at least one polycarbocyclic aromatic group attached to each phosphite wherein the carbocyclic nuclei are joined by a bivalent linking group other than a direct C-C link between ring carbons, a thioether group or a polysulphide group; and contain at least one aliphatic or cycloaliphatic group in the molecule, preferably also attached to a phosphite group; less than one phenolic -OH per phosphite group being present on the carbocyclic nuclei, and phosphite groups being joined only via the polycarbocyclic groups. The phosphites may have the general formula wherein m is an integer of 1 to 20, each Ar which may be the same or different, is a carbocyclic aromatic nucleus, Y is a linking group other than thioether or polysulphide or a direct link between ring carbons, and Z is hyrogen or organic monovalent or bivalent groups satisfying the remaining phosphite oxygen valences. The groups Ar may be substituted by up to four substituent groups ...

Processing stabiliser composition

IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS

IMPROVEMENTS RELATING TO ALKYD RESINS

... 1,240,230. Alkyd resins. SOC. ITALIANA RESINE S.p.A. 24 Dec., 1969 [31 Dec., 1968], No. 62925/69. Heading C3R. Alkyd resins are obtained by polycondensing polyhydroxyl alcohols with polycarboxylic acids in the presence of drying oils, characterized by the addition of one or more alkyl or aryl phosphites during the polycondensation in a quantity of 0.05 to 0.8% by weight based on the monomers, and treatment of the polycondensate with a naphthenate or octoate of Ca, Pb, Mn, Co, Cu, Fe, Ce or Zr and a peroxide at from 40-100‹ C. for 30-50 minutes. Preferred reagents are: Phosphites-trimethyl, triethyl and triphenyl phosphites; Peroxides-methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, and cumoyl peroxides and t-butyl hydroperoxide. The alkyd exemplified is a soya oil modified glyceryl phthalate.

Stabilizer composition

Improvements in resinous compositions

A resinous copolymer of acrylonitrile with 15 to 70 wt. per cent of vinyl chloride or vinylidene chloride or both are stabilized by incorporating in the copolymer a triorgano-phosphorus compound of the general formula: where X, X1 and X2 represent unsubstituted or substituted hydrocarbyl or hydrocarbyloxy radicals and when one or more of the X, X1, and X2 radicals is a hydrocarbyloxy radical at least one of the hydrocarbyloxy radicals contains an aliphatic carbon atom connected through an oxygen atom to the phosphorus atom, and further X1 and X2 may together represent a divalent radical consisting of a carbon chain terminated by oxygen atoms, which radical may be unsubstituted, or substituted by hydrocarbyl and/or hydrocarbyloxy radicals. The Specification contains a very extensive list of compounds of the above general formula. Examples of these compounds are triethyl phosphate, tridodecyl phosphate, tri-(2-methylpropenyl) phosphite, dibutyl phenylphosphonite, triphenyl ...

Unsaturated polyester compositions

The gel time of a thermosetting composition of an unsaturated polyester and a copolymerizable monomer is increased by adding phosphorous acid or a phosphite soluble in the composition. Additional stability is achieved by adding hydroquinone or t-butyl catechol. Specfied polyesters are those derived from an unsaturated dicarboxylic acid (e.g. maleic or fumaric acids), a glycol (e.g. propylene glycol) and, if desired, a saturated dicarboxylic acid (e.g. adipic, sebacic, phthalic, isophthalic, terephthalic or tetrachlorophthalic acids). Specifield monomers are styrene, methyl styrene, methyl methacrylate, diallyl phthalate and a mixture of styrene and methyl methacrylate. Specified phosphites are various di- and tri-phosphite esters. Polymerization of the composition may be effected with a paste of benzoyl peroxide, dimethyl phthalate and cobalt naphthenate as catalyst. Specifications 588,833 and 588,834, [both in Group IV], are referred to.

NICKEL-CONTAINING PHOSPHITE ESTER PRODUCTS USEFUL AS STABILIZERS FOR POLYOLEFINS

A process for the production of filaments or films by shaping linear polycarbonates of high molecular weight

... 1,057,828. Polycarbonate films and filaments. FARBENFABRIKEN BAYER A.G. April 10, 1964 [April 11, 1963], No. 14963/64. Heading B5B. [Also in Division C3] Filaments and films of improved crystallinity are made by adding to a polycarbonate solution from 10 to 100% (calculated on the weight of the polycarbonate) of a phosphite of formula in which R 1 and R 2 are C 1 -C 3 alkyl radical and R 3 is hydrogen or a C 1 -C 3 alkyl radical, and thereafter shaping the solution to form a filament or film. In examples a solution of the polycarbonate of bis-phenol A is methylene chloride containing diethyl phosphite was (1) forced through a spinneret into a heated shaft blown with heated air and the resulting filaments drawn off by a roller system and wound and then stretched above the second order transition temperature in the ratio 1: 4.9; (2) cast on to a drum to form a film which was dried in an air stream and stretched.

Composition

NEW POLYMER MIXTURES

MIT N,N-DIMETHYL-6-AMINOURACILEN STABILISIERTE HART- ODER HALBHART-PVC-MATERIALIEN

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

STABILIZER COMBINATIONS FOR CHLORIC POLYMERS

COMPOSITION AND PROCEDURE FOR THE COLOR IMPROVEMENT OF NIROXYL ABSTENTION POLYMERS

FLAME RETARDING PP FIGURATION COMPOSITION

POLYOLEFIN COMPOSITION WITH SILIKONHALTIGEM FILLER

EXTRUSION VON ALPHA-OLEFINPOLYMEREN

STABILISIERUNG VON POLYOLEFINEN IN DAUERKONTAKT MIT EXTRAHIERENDEN MEDIEN

PROCEDURES FOR THE PRODUCTION FROM MIXTURES DIFFERENTLY SUBSTITUTED PHOSPHITEN

FIRM ONE PHOSPHOROUS ACID ESTER PREPARATIONS WITH IMPROVED STABILIZER EFFECT IN POLYOLEFIN - PLASTICS

POLYMEMASSE

MIXTURES OF POLYESTER AND POLYCARBONATE FOR EXTRUDING BLOW MOULDINGS

PROCEDURE FOR THE PRODUCTION OF POWDERED FLUORINE RESINS WITH HARDENABLE FUNCTIONAL GROUPS AND THESE CONTAINING COATING COMPOSITIONS

FLAME RETARDING POLYPROPYLENE COMPOSITION

STABILIZATION OF INTERLACED PL WITH VERY MUCH LOW DENSITY (VLDPE).

PROCESS FOR THE STABILISATION OF HDPE

USE OF A POLYOLEFIN MOLDING MATERIAL FOR CONTINUOUS CONTACT WITH EXTRACTING MEDIA.

POLYMERE ONE OF ADDITIVES.

PROCEDURE FOR THE PRODUCTION OF LIGHT-RESISTING POLYVINYL BUTYRAL FOILS.

TRISORGANOPHOSPHITZUSAMMENSETZUNGEN WITH HYDROLYTIC STABILITY.

STABILIZER COMBINATION FOR CHLORIC POLYMERS

STABILIZER COMPOSITION II

STABILIZER COMBINATIONS FOR CHLORIC POLYMERS

PROCEDURES FOR THE PRODUCTION FROM MIXTURES DIFFERENTLY SUBSTITUTED PHOSPHITEN

PETROLEUM RESINS AND PROCEDURES FOR THEIR PRODUCTION.

STABILIZATION COMPOSITIONS FOR POLYOLEN AND POLYURETHAN-FOAM.

PROCEDURE FOR THE PRODUCTION OF SPIN FLEECES

MICRO CAPS, CONTAINING A STABILIZER MIXTURE FROM CHROMANDERIVATEN, INERT ONES ORGANIC SOLVENTS AND ORGANIC PHOSPHITEN OR PHOSPHONITEN AND/OR AMINES.

PROCEDURE FOR THE COLOR IMPROVEMENT OF BASIC METAL-ORGANIC SALTS AND THEIR EMPLOYMENT FOR THE STABILIZATION OF HALOGENHALTIGEN POLYMERS

STABILIZER COMBINATIONS FOR CHLORIC POLYMERS

Against oxidation stabilized polyolefin mixtures

WITH COPPER COMPLEXES AND ORGANIC HALOGEN CONNECTIONS PP COMPOSITION STABILIZED

STABILIZER COMBINATIONS FOR CHLORIC POLYMERS

Procedure for the production of a Stabilisierungsmittels

PROCEDURE FOR THE PRODUCTION COLOR HELLER URETDIONPOLYISOCYANATE

FIRE - AND ELECTRICITY-STEADY COMPOSITIONS

Stabilized plastic mass

Heat-stabilized, firm compositions

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

COMPOSITION CONTAINING THERMOPLASTIC PLASTICS

Polycarbonate/polyethylene terephthalate composite resin composition and molded article

A polycarbonate/polyethylene terephthalate composite resin composition is provided, which contains a resin component of 100 parts by weight and contains a phosphorus thermal stabilizer of 0.01 to 0.5 parts by weight and/or a hindered phenol thermal stabilizer of 0.01 to 1 parts by weight, the resin component containing a polycarbonate resin of 95 to 30 weight % and a polyethylene terephthalate resin of 5 to 70 weight %. The polyethylene terephthalate resin contains a deactivated polycondensation catalyst. The polycarbonate/polyethylene terephthalate composite resin composition can be prevented from being deteriorated resulting from being thermally preserved.

FLUOROELASTOMER COMPOSITION AND MOLDED ARTICLE

The present invention is to provide a fluoroelastomer composition which can suppress generation of unvulcanized portions even when a quaternary phosphonium salt is used as a vulcanization accelerator. Specifically, the present invention is a fluoroelastomer composition containing a polyol-crosslinkable fluoroelastomer, a polyhydroxy aromatic compound, a quaternary phosphonium salt, a divalent metal oxide and/or divalent metal hydroxide and an antioxidant. 1. A fluoroelastomer composition comprising:a polyol-crosslinkable fluoroelastomer,a polyhydroxy aromatic compound,a quaternary phosphonium salt,a divalent metal oxide and/or divalent metal hydroxide and an antioxidant.2. The fluoroelastomer composition according to claim 1 ,wherein the antioxidant is at least one selected from the group consisting of amine-based antioxidants, phenolic antioxidants, phosphite antioxidants and benzimidazole-based antioxidants.3. The fluoroelastomer composition according to claim 1 ,wherein the polyhydroxy aromatic compound is 2,2-bis(4-hydroxyphenyl)perfluoropropane.4. The fluoroelastomer composition according to claim 1 ,wherein the quaternary phosphonium salt is at least one selected from the group consisting of benzyltriphenylphosphonium chloride and 2,2-bis(4-hydroxyphenyl)perfluoropropane salt of benzyltriphenylphosphonium.5. The fluoroelastomer composition according to claim 1 ,wherein the antioxidant is contained at less than 0.5 parts by mass relative to 100 parts by mass of the fluoroelastomer.6. A molded article obtained with the fluoroelastomer composition according to .7. The molded article according to claim 6 , which is a sealing material. The present invention relates to a fluoroelastomer composition and a molded article.Patent Literature 1 discloses a fluoroelastomer vulcanizing composition characterized in that it comprises (a) a peroxide vulcanizable fluoroelastomer, (b) an organic peroxide, (c) a multi-functional co-crosslinking agent and (d) a phenolic ...

Polyolefin Compositions for Film, Fiber and Molded Articles

Polyolefin compositions prepared by processing a polyolefin resin and a mixture of a select hindered phenol and select liquid phosphite above the melting point of the polyolefin contain a higher amount of retained active phosphorus than when other common phosphites are used. The compositions, and films, fibers and other molded articles prepared from the compositions show improved stabilization against NOX discoloration and long term oxidation. The select liquid phosphite consists mainly of a mixture of triphenyl phosphite derivatives wherein the phenyl groups are substituted by different numbers of butyl and/or amyl substituents. 3. A film or fiber prepared from a composition according to .4. The composition according to wherein said liquid phosphite comprises a mixture consisting of:from 0 to 20 weight percent based on the total weight of phosphite of tris(di-t-amylphenyl)phosphite;from 20 to 70 weight percent based on the total weight of the phosphite of tris(mono-t-amylphenyl)phosphite;from 2 to 20 weight percent based on the total weight of the phosphite of bis(di-t-amylphenyl)mono-t-amylphenyl phosphite; andfrom 15 to 60 weight percent based on the total weight of the phosphite of a bis(mono-t-amylphenyl)di-t-amylphenyl phosphite,which mixture which is liquid at 25° C. makes up at least 90% by weight of all phosphites present in the composition.5. The composition according to wherein said liquid phosphite comprises a mixture consisting of:from 0 to 3 weight percent based on the total weight of phosphite of tris(di-t-butylphenyl)phosphite;from 35 to 75 weight percent based on the total weight of the phosphite of tris(mono-t-butylphenyl)phosphite;from 5 to 15 weight percent based on the total weight of the phosphite of bis(di-t-butylphenyl)monobutylphenyl phosphite; andfrom 21 to 47 weight percent based on the total weight of the phosphite of bis(mono-t-butylphenyl)dibutylphenyl phosphite,which mixture which is liquid at 25° C. makes up at least 90% by weight of ...

THERMALLY RESISTANT OPTICAL SILOXANE RESIN COMPOSITION

The present disclosure relates to a thermally resistant optical siloxane resin composition including siloxane containing photo-cationically polymerizable epoxy group, a photo initiator, and an antioxidant. 1. A thermally resistant optical siloxane resin composition comprising:siloxane containing photo-cationically polymerizable epoxy group; a photo initiator; and an antioxidant.2. The thermally resistant optical siloxane resin composition of claim 1 ,wherein the siloxane containing photo-cationically polymerizable epoxy group is produced through a sol-gel reaction.3. The thermally resistant optical siloxane resin composition of claim 2 ,wherein the siloxane containing photo-cationically polymerizable epoxy group is produced through a sol-gel reaction of alkoxysilane containing an epoxy group.4. The thermally resistant optical siloxane resin composition of claim 2 ,wherein the siloxane containing photo-cationically polymerizable epoxy group is produced through a sol-gel reaction between alkoxysilane or silanol and alkoxysilane containing epoxy group.5. The thermally resistant optical siloxane resin composition of claim 3 , {'br': None, 'sup': 1', '2, 'sub': n', '4-n, 'RSi(OR)\u2003\u2003[Chemical formula 1]'}, 'wherein the alkoxysilane containing epoxy group includes a structure represented by [Chemical formula 1]{'sub': 1', '1', '7, 'sup': '2', 'wherein Rdenotes an epoxy group or an alicyclic epoxy group; Rdenotes a linear or branched (Cto C)alkyl group;'}and n denotes an integer of 1 to 3.6. The thermally resistant optical siloxane resin composition of claim 4 , {'br': None, 'sup': 3', '4, 'sub': n', '4-n, 'RSi(OR)\u2003\u2003[Chemical formula 2]'}, 'wherein the alkoxysilane or silanol includes a structure represented by [Chemical formula 2]{'sup': 3', '4, 'sub': 1', '20', '2', '20', '2', '20', '6', '20', '1', '7, 'wherein Rdenotes (Cto C)alkyl group, (Cto C)alkenyl group, (Cto C)alkinyl group or (Cto C)aryl group which may have a substituent selected from Group A; ...

STABILIZER COMPOSITION FOR POLYMERS

The present invention relates to a composition, which comprises (a) a compound of formula (A-1) (b) a compound of formulae (B-1), (B-11), (B-111) or (B-IV) wherein Zis linear C-alkyl or linear C-alkyl, and (c) a compound, which is a further sterically hindered phenolic antioxidant. The composition is used for stabilization of an organic polymer against degradation by heat, light and/or oxidation. The organic polymer is for example a styrene-butadiene copolymer, a styrene-isoprene copolymers or polybutadiene. 2. A composition according to claim 1 , further comprising (d) an organic polymer.3. A composition according to claim 2 , wherein the organic polymer (d) is selected from the group consisting of butadiene-styrene copolymers claim 2 , isoprene-styrene copolymers and butadiene polymers.4. A composition according to claim 3 , wherein the organic polymer (d) originates from a solution polymerisation process or an emulsion polymerisation process.5. A composition according to claim 3 , wherein the organic polymer (d) is selected from the group consisting of styrene-butadiene-styrene block copolymer claim 3 , styrene-isoprene-styrene block copolymer claim 3 , styrene-ethylene-butadiene-styrene copolymer claim 3 , styrene-butadiene-styrene random copolymer and polybutadiene.6. A composition according to claim 1 , wherein the weight ratio of component (a) to component (b) is from 2 to 1 to 1 to 20.7. A composition according to claim 2 , wherein the weight ratio of component (a) to component (d) is from 1 to 1 to 1 to 60.8. A composition according to claim 1 , wherein the weight ratio of component (a) to (b) is from 2 to 1 to 1 to 20 and the weight ratio of component (a) to component (c) is from 1 to 1 to 1 to 60.9. A composition according to claim 2 , wherein the combined weight of component (a) claim 2 , component (b) and component (c) is from 0.02% to 10% of the weight of component (d).10. A composition according to claim 2 , wherein the weight of component (a) is from ...

Alkylphenol free - liquid polymeric polyphosphite polymer stabilizers

An alkylphenol-free liquid polymeric polyphosphite is described of general Structure IV illustrated below wherein each R 1 , R 2 , R 3 and R 4 can be the same or different and independently selected from the group consisting of C 1-20 alkyl, C 2-22 alkenyl, C 6-40 cycloalkyl, C 7-40 cycloalkylene, C 3-20 methoxy alkyl glycol ethers, C 3-20 alkyl glycol ethers, and or Y—OH; Y is selected from the group consisting of C 2-40 alkylene, C 2-40 alkyl lactone, —R 7 —N(R 8 )—R 9 —, wherein R 7 , R 8 and R 9 are independently selected from the group previously defined for R 1 , R 2 , R 3 and R 4 , now further including H; m is an integral value ranging from 2 to 100 inclusive; and x is an integral value ranging from 1 to 1,000 and further in which by controlling a molar ratio of reactants, the number of terminal hydroxyl groups is minimized. The alkylphenol-free liquid polymeric phosphite is useful in reducing phosphite migration within polymers.

CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS

A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain. 5. The polymeric polyphosphite of whereinsaid polymeric polyalkylene glycol is selected from the group consisting of polyethylene glycol and polypropylene glycol.6. A process for the preparation of a polymeric polyphosphite comprising the steps of:reacting a triphosphite with a limiting molar amount of a dihydroxy-terminated reactant with a molar excess of a monofunctional chain stopper;adding a base;heating said triphosphite, a dihydroxy-terminated reactant wherein said dihydroxy-terminated reactant comprises at least at least one saturated carbocyclic ring and monofunctional chain stopper and base; and at least one monohydroxy-terminated reactant;', {'sup': 7', '8', '9', '7', '8', '9, 'sub': a', 'b', '1-6', '1-6, 'at least one dihydroxy-terminated reactant selected from the group HO—[R]—R—[R]—OH, where Ris a linear or branched Calkylene, Ris a saturated carbocyclic ring having from 5 to 10 carbon atoms in the ring, and Ris a linear or branched Calkylene, and further wherein a and b are values of 0 and 1; and'}, 'a trifunctional reactant comprising at least one phosphorus moiety; and, 'further wherein said polymeric polyphosphite is a reaction product ofisolating said alkylphenol-free phosphite.7. The process of wherein said step of reacting further comprises the step of:adding at least one second polyalkylene glycol dihydroxy-terminated reactant.8. The process of whereinsaid polyalkylene glycol is selected from the group consisting of polyethylene glycol and polypropylene glycol.10. The polymeric phosphite of claim 9 , in which Y represents a —CHCH— or —CH(CH)CH— group.11. The polymeric polyphosphite of claim 9 , in which m is from 5 to 20.12. The polymeric polyphosphite of claim 9 , which contains no units of Formula B.13. The polymeric phosphite of claim 9 , in which Rrepresents a ...

Process to Produce Enhanced Melt Strength Ethylene/Alpha-Olefin Copolymers and Articles Thereof

An ethylene/α-olefin copolymer comprising units derived from ethylene; and units derived from at least one α-olefin; wherein the ethylene/α-olefin copolymer has a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; an Mw/Mn of from 3 to 5; and from 300 to 500 vinyl unsaturations per 1,000,000 carbon atoms in the ethylene/α-olefin copolymer is provided. Also provided is a process for producing an ethylene/α-olefin copolymer comprising: (1) polymerizing ethylene and one or more α-olefins in a polymerization reactor; (2) thereby producing an enhanced melt strength ethylene/α-olefin copolymer having from 300 to 500 vinyl unsaturation units per 1,000,000 carbon atoms, a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; and a Mw/Mn of from 3 to 5. 1. An ethylene/α-olefin copolymer comprising:units derived from ethylene; andunits derived from at least one α-olefin;{'sub': '2', 'wherein the ethylene/α-olefin copolymer has a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; an Mw/Mn of from 3 to 5; and'}from 300 to 500 vinyl unsaturations per 1,000,000 carbon atoms in the ethylene/α-olefin copolymer, and wherein the ethylene/α-olefin copolymer is produced using a polymerization step occurring at a temperature of at least 205° C.2. A process for producing an ethylene/α-olefin copolymer comprising the steps of: (1) polymerizing ethylene and one or more α-olefins in a polymerization reactor wherein the ethylene/α-olefin copolymer is produced using a polymerization step occurring at a temperature of at least 205° C.; (2) thereby producing an enhanced melt strength ethylene/α-olefin copolymer having from 300 to 500 vinyl unsaturation units per 1 ,000 ,000 carbon atoms , a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; and a Mw/Mn of from 3 to 5.3. The process ...

METHOD FOR DEFOAMING A VINYL CHLORIDE RESIN SLURRY

Disclosed is a method for defoaming a vinyl chloride resin slurry. The agent of the present invention may prevent generation of Fish eyes and deteriorate in production efficiency caused by slurry foams without inhibiting inherent transparency of vinyl chloride resins, in the process of preparing the vinyl chloride resins by polymerizing a monomer mixture containing vinyl chloride as a main component in a polymerization reactor. 2. The method for defoaming a vinyl chloride resin slurry according to claim 1 , wherein claim 1 , in Formula 1 claim 1 , the number of carbon atoms in the alkyl group is an integer of 4 to 18.3. The method for defoaming a vinyl chloride resin slurry according to claim 1 , a is an integer of 1 to 15.4. The method for defoaming a vinyl chloride resin slurry according to claim 1 , b is an integer of 10 to 100.5. The method for defoaming a vinyl chloride resin slurry according to claim 1 , the number of carbon atoms in the alkyl group is an integer of 4 to 18.6. The method for defoaming a vinyl chloride resin slurry according to wherein the compound of Formula 1 and the compound of Formula 2 are mixed at a weight ratio of 9:1 to 3:7.7. The method for defoaming a vinyl chloride resin slurry according to further comprising a polyvinyl acetate compound having a partial saponification degree of 90% or less.8. The method for defoaming a vinyl chloride resin slurry according to wherein the partially saponified polyvinyl acetate compound has a partial saponification degree of 30% to 90%.9. The method for defoaming a vinyl chloride resin slurry according to wherein the partially saponified polyvinyl acetate compound has a weight average molecular weight (Mw) of 7 claim 1 ,000 to 20 claim 1 ,000.10. The method for defoaming a vinyl chloride resin slurry according to claim 7 , wherein a weight ratio of the at least one compound selected from the compound of Formula 1 and the compound of Formula 2 claim 7 , and the partially saponified polyvinyl acetate ...

PHOSPHOROUS-CONTAINING FLAME RETARDANTS FOR POLYURETHANE FOAMS

Embodiments of the invention include a phosphorus containing flame retardant which may be the reaction product of a reaction mixture where the reaction mixture includes at least one active hydrogen-containing compound and at least one phosphorus containing compound. The at least one active hydrogen-containing compound is selected from the group of a first polyol having a hydroxyl functionality of at least 3, a polyamine having an amine functionality of at least 2, and an amino alcohol having a combined amine and hydroxyl functionality of at least 2. The at least one phosphorus containing compound has the general formula (1), (2) or combination thereof: 3. The phosphorus containing flame retardant of claim 1 , wherein R is at least one of propylene claim 1 , 2-methylpropylene claim 1 , neopentylene claim 1 , and 2-butyl-2-ethylpropylene.4. The phosphonate flame retardant of claim 1 , wherein X is selected from the group consisting of Cl claim 1 , Br claim 1 , and I claim 1 , and sulfonate.5. The phosphorus containing flame retardant of claim 1 , wherein the phosphorus containing compound is 2-Chloro-5 claim 1 ,5-dimethyl-1 claim 1 ,3 claim 1 ,2-dioxaphosphinane claim 1 , 2-chloro-5 claim 1 ,5-dimethyl-1 claim 1 ,3 claim 1 ,2-dioxaphosphinane 2-oxide claim 1 , diethyl phosphorochloridite claim 1 , or diethyl phosphorochloridate.6. The phosphorus containing flame retardant of claim 1 , wherein the at least one first polyol comprises at least one of polyoxalkylene polyol having an equivalent weight about 60-2500.7. The phosphorus containing flame retardant of claim 6 , wherein the at least one polyoxalkylene polyol is initiated with glycerol claim 6 , sucrose claim 6 , sorbitol claim 6 , or a combination thereof claim 6 , and the polyoxalkylene comprises at least one of polyoxyethylene and polyoxypropylene.8. The phosphorus containing flame retardant of claim 1 , wherein the first polyol comprises a sorbitol initiated polyoxypropylene polyol with an equivalent weight of ...

POLYCARBONATE RESIN, AND POLYCARBONATE RESIN COMPOSITION

Provided is a polycarbonate resin, including, as a raw material, a bisphenol A having 100 ppm by mass or less of isopropenylphenol and 250 ppm by mass or less of 2-(2-hydroxyphenyl)-2-(4-hydroxyphenyl)propane, each detected after heating in air at 175° C. for 1 hour. 1. A polycarbonate resin , comprising as a raw material , a bisphenol A having 100 ppm by mass or less of isopropenylphenol and 250 ppm by mass or less of 2-(2-hydroxyphenyl)-2-(4-hydroxyphenyl) propane , each detected after heating in air at 175° C. for 1 hour.2. The polycarbonate resin according to claim 1 , wherein the bisphenol A serving as the raw material satisfies the following formula (i).{'br': None, '(Concentration of isopropenylphenol detected after heating at 175° C. for 1 hour)−(concentration of isopropenylphenol before heating at 175° C. for 1 hour)≦50 ppm by mass \u2003\u2003Formula (i)'}3. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a viscosity-average molecular weight of from 9 claim 1 ,000 to 17 claim 1 ,500.4. A polycarbonate resin composition claim 1 , comprising 100 parts by mass of (A) a polycarbonate resin containing 60 mass % or more of the polycarbonate resin of claim 1 , and 100 ppm by mass to 1 claim 1 ,500 ppm by mass of (B) a phosphorus-based antioxidant.5. The polycarbonate resin composition according to claim 4 , wherein (B) the phosphorus-based antioxidant has a pentaerythritol structure.6. The polycarbonate resin composition according to claim 4 , wherein (B) the phosphorus-based antioxidant comprises bis(2 claim 4 ,6-di-tent-butyl-4-methylphenyl)pentaerythritol diphosphite and/or bis(2 claim 4 ,4-dicumylphenyl)pentaerythritol diphosphite.7. The polycarbonate resin composition according to claim 4 , further comprising claim 4 , with respect to 100 parts by mass of (A) the polycarbonate resin claim 4 , 200 ppm by mass to 1 claim 4 ,500 ppm by mass of (C) a polyorganosiloxane having a functional group.8. The polycarbonate resin ...

Bisphenol polyether oligomers, methods of manufacture, and polycarbonates made therefrom

A bisphenol polyether oligomer composition comprising greater than 90 wt. % of an oligomer of the formula wherein R a , R b , and R c are each independently a C 1-12 alkyl, C 1-12 alkoxy, or C 1-12 alkylarylene, each X a is independently a single bond, —O—, —S—, —S(O)—, —S(O) 2 —, —C(O)—, or a C 1-18 organic group, G is H or p, q, and t are each independently integers of 0 to 4, n is 1 to 10; and wherein the bisphenol polyether oligomer composition comprises: a total halide content of less than 1000 ppm, less than 1000 ppm of —CH 2 OH groups, less than 5 wt. % cyclic oligomers, and less than 100 ppm of a bisphenol of the formula wherein R a , R b , X a , p and q are the same as in the oligomer.

WOOL-LIKE POLYESTER FILAMENT AND PREPARING METHOD THEREOF

A type of wool-like polyester filament and preparing method thereof are disclosed. The preparing method is manufacturing filament from a modified polyester through a POY process and a successive DTY processes, wherein the modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, 1,4-butanediol, fluorinated dicarboxylic acid, tert-butyl branched hexanediol and 2,5,6,6-tetramethyl-2,5-heptanediol. The obtained fiber has a dye uptake of 90.32-93.27% and a K/S value of 22.15-23.42 when dyed at 100° C., and has an intrinsic viscosity drop of 17-20% when stored at 25° C. and R.H. 65% for 60 months. This invention features a method with ease of application and a product with good dyeing and degradation performance. 2. The preparing method of claim 1 ,wherein the tert-butyl branched hexanediol is synthesized by means of:mixing a 300-350 g/L solution of material A and a 200-300 g/L solution of dilute sulfuric acid at a molar ratio of (1.5-2):1 of the material A to the sulfuric acid to form a mixed solution, and adding the mixed solution into an electrolytic cell, then cooling the mixed solution to 10-15° C. and carrying out an electrolytic reduction until a concentration of the material A decreases to less 10 wt %, and finally obtaining the target compound through a series of processes of cooling crystallization, separation and purification;{'sub': 2', '3', '3', '3, 'wherein the material A is 2,2-methylpropionaldehyde, 2,2-dimethyl-3-pentanone or 2,2,4,4-tetramethyl-3-pentanone when R (in Formula 1) stands for —H, —CHCHor —C(CH), respectively;'}wherein the 2,5,6,6-tetramethyl-2,5-heptanediol is synthesized by means of:(1) mixing KOH, 3-methyl-3-hydroxybutyne, 3,3-dimethyl-2-butanone and isopropyl ether in a molar ratio of (1-1.2):1:(1.2-1.3):(2.0-3.0), then carrying out the reaction in an ice bath for 2-4 hrs, finally obtaining octyne diol through a series of processes of cooling crystallization, ...

FLAME-RESISTANT FOAMED STYRENE-BASED RESIN COMPOSITION

The present invention provides a recyclable flame-retardant expandable styrene-based resin composition that attains high flame retardancy and high heat stability with a small addition amount of a bromine-containing flame retardant. Specifically, the present invention provides a flame-retardant expandable styrene-based resin composition comprising a styrene-based resin (A), a flame retardant (B), fatty acid zinc (C), a heat stabilizer (D), and a foaming agent (F), wherein the flame retardant (B) comprises tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) (B1) and a bromine-containing flame retardant (B2) other than (B1). 1. A flame-retardant expandable styrene-based resin composition comprising a styrene-based resin (A) , a flame retardant (B) , fatty acid zinc (C) , a heat stabilizer (D) , and a foaming agent (F) ,wherein the flame retardant (B) comprises tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) (B1) and a bromine-containing flame retardant (B2) other than (B1).2. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the ratio of the tetrabromobisphenol A-bis(2 claim 1 ,3-dibromo-2-methylpropyl ether) (B1) to the bromine-containing flame retardant (B2) other than (B1) is 1/99 to 40/60 on a weight basis.3. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the heat stabilizer (D) is contained in an amount of 16 to 20000 parts by mass per 100 parts by mass of the fatty acid zinc (C).4. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the fatty acid zinc (C) is contained in an amount of 0.025 to 300 parts by mass per 100 parts by mass of the tetrabromobisphenol A-bis(2 claim 1 ,3-dibromo-2-methylpropyl ether) (B1).5. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the fatty acid zinc (C) is contained in an amount of 0.01 to 5 parts by mass per 100 parts by mass of the ...

Method for producing polylactic acid-based hot melt adhesive

A method for manufacturing a polylactic acid-based hot melt adhesive includes: (1) preparing a first polylactic acid composition by adding a phosphite and a hindered phenol to a mixture prepared by adding and melt-mixing a first polylactic acid (relative viscosity 2.5-4.0) in a liquid mixture of a dithiocarbamate and a plasticizer at 180 to 280° C., wherein with respect to 100 parts by weight of the first polylactic acid, 10 to 100 parts by weight of the plasticizer, 0.02 to 0.3 parts by weight of the dithiocarbamate, 1 to 10 parts by weight of the phosphite, and 1 to 10 parts by weight of the hindered phenol are used; and (2) mixing a second polylactic acid (relative viscosity 2.5-4.0), into the first polylactic acid composition at 180-280° C., a weight ratio of the first polylactic acid/the second polylactic acid is 2/8 to 8/2.

PRODUCTION METHOD FOR STABILIZED OLEFIN RESIN COMPOSITION

Provided is a production method that can produce an olefin resin composition having excellent long-term stability and providing a sufficient stabilization effect to the olefin resin composition. This production method is a method of producing an olefin resin composition that contains a polyolefin resin polymerized with an addition of a mixture of a phenolic antioxidant represented by the following Formula (1) and a phosphite compound represented by the following Formula (2) or (3), and an organoaluminum compound or a mixed solvent of an organoaluminum compound and an organic solvent, to a catalyst system or a polymerization system before or during the polymerization of the olefin monomer, in which method 0.001 to 5 parts by mass of the phenolic antioxidant represented by Formula (1) and 0.001 to 3 parts by mass of the phosphite compound represented by Formula (2) or (3) are incorporated with respect to 100 parts by mass of an olefin resin obtained by the polymerization: 2. The method of producing an olefin resin composition according to claim 1 , wherein the olefin monomer comprises ethylene or propylene.3. The method of producing an olefin resin composition according to claim 1 , wherein Rin Formula (1) is an alkyl group having 12 to 24 carbon atoms.4. The method of producing an olefin resin composition according to claim 1 , wherein the organoaluminum compound is a trialkyl aluminum.5. An olefin polymer obtained by the method according to .6. An olefin resin composition comprising the olefin polymer according to .7. A molded article obtained by molding the olefin resin composition according to .8. The method of producing an olefin resin composition according to claim 2 , wherein Rin Formula (1) is an alkyl group having 12 to 24 carbon atoms.9. The method of producing an olefin resin composition according to claim 2 , wherein the organoaluminum compound is a trialkyl aluminum.10. The method of producing an olefin resin composition according to claim 3 , wherein the ...

VINYL CHLORIDE RESIN COMPOSITION FOR TRANSPARENT PRODUCTS

A vinyl chloride resin composition for transparent products, comprising 100 parts by mass of the vinyl chloride resin, 0.01 to 10 parts by mass of the following component (A), 0.01 to 10 parts by mass of the following component (B) and 0.01 to 3 parts by mass of the following component (C);

Polycarbonate resin composition

The present invention relates to a polycarbonate resin composition. The polycarbonate resin composition exhibits excellent optical properties, and thus can be used as a material for a light guide plate.

Polymer Compositions Having an Improved Printable Surface and Related Methods

A composition having a polymer-film composition having a compound having the structure: wherein: each R is independently selected; each R is a C 1-20 alkyl moiety, C 2-22 alkenyl moiety, C 6-40 cycloalkyl moiety, C 6-40 cycloalkylene moiety, C 2-20 alkyl glycol ether moiety, C 10 -C 16 linear alkyl alcohol moiety, or Y—OH moiety; each Y is a C 2-40 alkylene moiety, C 6-40 cycloalkylene moiety, C 2-20 alkylene glycol ether, or a C 3-40 alkylene lactone; m is an integer ranging from 1 to 100; x is an integer ranging from 2 to 1,000; and the polymer-film composition having an oxidized polymer-film surface.

POLYOLEFIN STABILIZERS WITH REDUCED FRAGMENTATION

The disclosure relates to a polyolefin composition having a selected thermal and processing stabilizer so that less pollutants emerge from the polyolefin. 2. The polyolefin composition according to claim 1 , whereby in structure (I) Rto Rare independently from each other methyl and t-butyl.3. The polyolefin composition according to claim 1 , furthermore comprising an acid scavenger.4. The polyolefin composition according to claim 1 , whereby the processing stabilizer comprises a compound selected out of the group comprising phosphites (without a hydrolizable 2 claim 1 ,4-phenyl moiety) claim 1 , phosphonites (without a hydrolizable 2 claim 1 ,4-phenyl moiety) claim 1 , N-hydroxylamines claim 1 , natural antioxidants claim 1 , cyclic pentaerythritole diphosphite esters claim 1 , partially unsaturated hydrocarbons or mixtures thereof7. The polyolefin composition according to claim 1 , furthermore comprising an acid scavenger comprising a layered double hydroxide compound.8. The polyolefin composition according to claim 1 , whereby the content of the radical scavenger is ≥1000 μm.9. The polyolefin composition according to claim 1 , whereby the content of the radical scavenger is ≤1000 μm.10. Use of a stabilizer composition claim 1 , comprising a radical scavenger comprising a compound selected from the compound (I) and (II) or mixtures thereof and a processing stabilizer which essentially does not contain a hydrolizable phosphite compound having 2-4-substituted phenol moiety claim 1 , in polyolefins for reducing the amount of pollutants.11. Use of a stabilizer composition claim 1 , comprising a radical scavenger comprising a compound selected from the compound (I) and (II) or mixtures thereof and a processing stabilizer which essentially does not contain 2-4-substituted phenol moiety for reducing the amount of pollutants resulting from the fragmentation of the stabilizer composition.12. A product comprising a polyolefin according to claim 1 , the product being selected ...

FLAME-RETARDED STYRENE-CONTAINING COMPOSITIONS

A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one dialkyl phosphinic acid metal salt M(RRPO)wherein Mis a metal cation with valence n and R, Rare alkyl groups which may be the same or different; at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements. 1. A composition comprising:an impact modified styrene-containing polymer;at least one bromine-containing flame retardant;{'sub': 1', '2', 'n', '1, 'sup': n+', '1', '2', '1', '2, 'at least one dialkyl phosphinic acid metal salt M(RRPO)wherein Mis a metal cation with valence n and R, Rare alkyl groups which may be the same or different;'}at least one anti-dripping agent,wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.2. A composition according to claim 1 , wherein the impact modified styrene-containing polymer is selected from the group consisting of acrylonitrile-butadiene-styrene (ABS) and high impact polystyrene (HIPS).3. A composition according to claim 2 , wherein the styrene-containing polymer is ABS.4. A composition according to claim 1 , wherein the total concentration of the bromine-containing flame retardant and the M(RRPO)is from 18 to 26% by weight.5. A composition according to claim 1 , wherein the bromine concentration of the composition is from 9.5 to 15.5% by weight based on the total weight of the composition.6. A composition according to claim 1 , wherein the concentration of the ...

Polymer compositions with improved weathering resistance

This invention relates to a polymer composition comprising:(A) at least one polyester, and(B) a stabilizer composition comprising:(1) at least one primary antioxidant comprising at least one hindered phenolic antioxidant;(2) at least one secondary antioxidant comprising at least one phosphite;(3) at least one chain extending agent;(4) at least one ultraviolet light absorbing agent; and(5) at least one hindered amine light stabilizer.

POLYCARBONATE RESIN COMPOSITION

Provided is a polycarbonate resin composition having the following features: even when the composition is retained in a molding machine at a high temperature exceeding 340° C., the composition shows little yellowing and hence maintains a satisfactory color tone; and even when a molded article obtained by molding the composition after the composition has been retained under a high-temperature condition undergoes thermal history, the molded article shows a small change in color tone with time and is hence excellent in long-term stability of its optical characteristics. The polycarbonate resin composition includes predetermined amounts of a polycarbonate resin (A), a specific polyether compound (B), and a specific antioxidant (C). 2. The resin composition according to claim 1 , wherein a remaining ratio of the antioxidant (C) in a molded article (I) obtained by molding the resin composition with respect to an amount of the antioxidant (C) in the resin composition is 60% or more.3. The resin composition according to claim 1 , wherein a remaining ratio of the antioxidant (C) in a molded article (II) obtained by molding the resin composition after the resin composition has been retained in a molding machine at 350° C. for 20 minutes with respect to an amount of the antioxidant (C) in the resin composition is 50% or more.4. The resin composition according to claim 2 , wherein the molded article (I) having a thickness of 3.2 mm has a YI value (YI) claim 2 , which is measured with a spectrophotometer under conditions of a C light source and a two-degree field of view claim 2 , of 1.00 or less.5. The resin composition according to claim 3 , wherein claim 3 , when a YI value of the molded article (II) having a thickness of 3.2 mm claim 3 , which is measured with a spectrophotometer under conditions of a C light source and a two-degree field of view claim 3 , is represented by YI claim 3 , and a YI value after the molded article (II) has been heated at 85° C. for 200 hours is ...

POLYCARBONATE RESIN COMPOSITION, HEAT RAY SHIELDING MOLDED BODY AND HEAT RAY SHIELDING LAMINATION BODY

A polycarbonate resin composition capable of suppressing the deterioration of the weather resistance of the infrared shielding material fine particles, including: a composite tungsten oxide fine particle (A), a weather resistance improver (B), and a polycarbonate resin (C), wherein (A) is expressed by a general formula MxWOy, and (B) is any one of those containing a phosphite compound (B1), or containing the phosphite compound and one or more kinds selected from a hindered phenol-based stabilizer, phosphoric acid-based stabilizer and sulfur-based stabilizer (B2), or containing a hindered phenol-based stabilizer and one or more kinds selected from a phosphoric acid-based stabilizer and sulfur-based stabilizer (B3), and an addition amount of (B) is 0.1 parts by weight or more and 20 parts by weight or less, based on 1 parts by weight of (A), and provides a heat ray shielding molded body and a heat ray shielding lamination body produced using the composition. 2. The polycarbonate resin composition according to claim 1 , wherein a dispersed particle size of the composite tungsten oxide fine particle (A) is 1 nm or more and 200 nm or less.3. The polycarbonate resin composition according to claim 1 , wherein the phosphite compound includes: 2 claim 1 ,4 claim 1 ,8 claim 1 ,10-tetra-t-butyl-6-[3-(3-methyl-4-hydroxy-5-t-butylphenyl) propoxy] dibenzo [d claim 1 , f][1 claim 1 ,3 claim 1 ,2] dioxaphosphepin claim 1 , 2 claim 1 ,10-dimethyl-4 claim 1 ,8-di-t-butyl-6-[3-(3 claim 1 ,5-di-t-butyl-4-hydroxyphenyl) propoxy]-12H-dibenzo [d claim 1 , g][1 claim 1 ,3 claim 1 ,2] dioxaphosphocin claim 1 , 2 claim 1 ,4 claim 1 ,8 claim 1 ,10-tetra-t-butyl-6-[3-(3 claim 1 ,5-di-t-butyl-4-hydroxyphenyl) propoxy] dibenzo [d claim 1 , f][1 claim 1 ,3 claim 1 ,2] dioxaphosphepin claim 1 , 2 claim 1 ,4 claim 1 ,8 claim 1 ,10-tetra-t-pentyl-6-[3-(3 claim 1 ,5-di-t-butyl-4-hydroxyphenyl) propoxy]-12-methyl-12H-dibenzo [d claim 1 , g][1 claim 1 ,3 claim 1 ,2] dioxaphosphocin claim 1 , 2 claim 1 ...

ACID RESISTANT POLYETHYLENE CONTAINERS

Rotomolded polyethylene containers that are used to store sulfuric acid can become discolored on the interior surface which is in contact with the acid. This problem may be mitigated by the use of an additive package that contains two primary antioxidants. 1. A method for improving the discoloration resistance of a rotational molded polyethylene container that is contacted with concentrated sulfuric acid , said method comprising the steps of A.1) a hindered phenolic primary antioxidant;', 'A.2) a hydroxylamine primary antioxidant;', 'B) a phosphite secondary antioxidant;', 'C) a hindered amine light stabilizer; and, '1) providing a stabilized ethylene copolymer composition, wherein said stabilized ethylene copolymer composition contains an additive package comprising'}2) subjecting said stabilized ethylene copolymer composition to rotational molding conditions to produce a rotational molded polyethylene container; and 'wherein said acid contacted container has improved color in comparison to a control acid contacted container that is prepared using an additive package that does not contain any of said hydroxylamine primary antioxidant.', '3) contacting said rotational molded polyethylene container with concentrated sulfuric acid to produce an acid contacted container;'}2. The method of wherein said ethylene copolymer composition has a melt index claim 1 , I claim 1 , of from 1 to 10 grams per 10 minutes.3. The method of wherein said ethylene copolymer composition has a density of from 0.93 to 0.95 grams per cubic centimeter.4. The method of wherein said rotational molding conditions included a molding temperature of from 230 to 350° C. and a heated molded time of from 10 to 60 minutes.5. The method of wherein said ethylene copolymer composition is prepared from a catalyst type chosen from single site catalysts claim 1 , Ziegler Natta catalysts and combinations thereof.6. The method of wherein said catalyst type consists essentially of at least one single site ...

Process for the preparation of silylated polymers employing a backmixing step

A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.

PROCESS FOR THE PREPARATION OF SILYLATED POLYMERS EMPLOYING A BACKMIXING STEP

A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step. 125-. (canceled)27. The silylated polyurethane of having a color of less than 50 Pt-Co.28. The silylated polyurethane of having less than about 0.02 weight percent isocyanate.35. A process for the preparation of the silylated polymer comprising(a) continuously reacting a prepolymer with a silylating agent, by a silylation reaction, to produce a silylated polymer composition;(b) continuously backmixing at least a first portion of the silylated polymer composition with a loop connected from a downstream outlet to an upstream outlet of a reactor to adjust to at least one upstream process parameter; and{'claim-ref': {'@idref': 'CLM-00026', 'claim 26'}, '(c) continuously reacting at least a second portion of the silylated polymer composition with a cyclic amide scavenging agent or scavenging package containing at least one cyclic amide scavenging agent to produce the quenched silylated polymer of .'}36. The process of claim 35 , wherein the cyclic amide scavenging agent is selected from the group consisting of ε-caprolactam and 2-pyrrolidone.38. The process of claim 44 , wherein the prepolymer is at least one prepolymer selected from the group consisting of a chain extended polyol with terminal hydroxyl groups claim 44 , chain extended polyol with terminal isocyanate groups or a chain extended polyol with both hydroxyl and isocyanate groups39. The process of further comprising adding a ...

STABILIZED HIGH-DENSITY POLYETHYLENE COMPOSITION WITH IMPROVED RESISTANCE TO DETERIORATION AND STABILIZER SYSTEM

The disclosure relates to a high-density polyethylene (HDPE) composition with resistance to deterioration in the presence of chlorinated and non-chlorinated water at temperatures in the range of about 0° C. to about 100° C., due to a particular stabilizer system which is composed of a hindered phenol antioxidant, a phosphonite or phosphine antioxidant, and a natural or synthetic hydrotalcite. The stabilizer system is specifically tailored to protect the HDPE as well as other polyolefins against deterioration and degradation. 1. A high-density polyethylene (HDPE) composition having improved resistance to deterioration in the presence of chlorinated and non-chlorinated water at temperatures in the range of about 0° C. to about 100° C. and consisting essentially of:a) the HDPE;b) an effective amount of a hindered phenol antioxidant;c) an effective amount of a phosphonite or phosphine antioxidant;d) an effective amount of a co-stabilizing synthetic or natural hydrotalcite; ande) optionally one or more additives different from components (b) to (d).2. The HDPE composition of claim 1 , consisting essentially of:a) the HDPE;b) from about 0.05 to about 0.5%-wt., based on the weight of (a), of the hindered phenol antioxidant;c) from about 0.02 to about 0.5%-wt., based on the weight of (a), of the phosphonite or phosphine antioxidant;d) from about 0.01 to about 1.0%-wt., based on the weight of (a), of the co-stabilizing synthetic or natural hydrotalcite; ande) optionally one or more additives different from components (b) to (d), in each case in amounts of from about 0.01 to about 3.0%-wt., based on the weight of (a).3. The HDPE composition of claim 1 , wherein the HDPE (a) meets at least one of the following provisions (a) to (a):{'sub': '1', 'a) the HDPE has a molecular weight distribution which is at least bimodal; and/or'}{'sub': '2', 'sup': '3', 'a) the HDPE has a density of ≧0.946 g/cm, a HLMI of ≦20 g/10 min.; and/or'}{'sub': 3', '2, 'sup': '3', 'a) the HDPE has at ...

COMPACTED PELLETIZED ADDITIVE BLENDS CONTAINING A POLYMER CARRIER

Improved solventless processing technology for additive blends containing a polymer carrier, including those which have high level of additives, is described. High concentrations of low-melting, sticky additives lead to phase separation and extrusion instability, such that pellets cannot be formed from such additive blends by traditional extrusion process. These blends include those with a high level of active additives that have been described in the literature as Type A Superblends. Here a polymer typically acts as the carrier of the additives. The new and improved technology involves the solid state compaction processing, using a tubular die, of such impossible-to-pelletize additive blends of the Type A composition to produce commercially useful pelletized additive blends. 1. A solventless method for solid state compaction processing of a solid powder additive blend into pellets , wherein the additive blend cannot be processed into pellets using traditional melt extrusion method , comprising:mixing one or more additives with granular polymer resin and without a solvent, to produce a starting or initial powder blend; andcompacting the starting powder blend using a pelletizing mill with tubular die to produce compacted additive pellets by compression force,wherein at least one of the additives has a melting temperature below about 70° C., wherein the granular polymer resin has a median particle size greater than about 350 microns and less than about 4000 microns, and wherein the compacted additive pellets have an attrition index of greater than about 90%.2. The method of claim 1 , wherein the solid state compaction processing is performed using a pelletizing mill with rotating die containing tubular orifices and a fixed roller.3. The method of claim 1 , wherein the solid state compaction processing is performed using a pelletizing mill with stationary non-rotating die containing tubular orifices and rotating rollers.4. The method of claim 1 , wherein at least one ...

POLYARYLATE RESIN COMPOSITION AND MOLDED ARTICLE USING THE SAME

The present invention provides a polyarylate resin composition sufficiently excellent in heat resistance, transparency, heat discoloration resistance and moist heat resistance, and a molded article made of the same. The present invention relates to a polyarylate resin composition containing 0.005˜5 parts by mass of a silane compound (C) with a boiling point of 200° C. or more, based on 100 parts by mass of the total of a polyarylate resin (A) and a polycarbonate resin (B), a content ratio of the polyarylate resin (A) and the polycarbonate resin (B) being 5/95 to 95/5 (mass ratio). 1. A polyarylate resin composition; comprising 0.005˜5 parts by mass of a silane compound (C) with a boiling point of 200° C. or more , based on 100 parts by mass of the total of a polyarylate resin (A) and a polycarbonate resin (B) , a content ratio of the polyarylate resin (A) and the polycarbonate resin (B) being 5/95 to 95/5 (mass ratio).3. A polyarylate resin composition of claim 1 , further comprising a phosphorus-based compound (D).4. A polyarylate resin composition of claim 3 , wherein a content of the phosphorus-based compound (D) is 0.01 to 1 parts by mass based on 100 parts by mass of the total of the polyarylate resin (A) and the polycarbonate resin (B).5. A polyarylate resin composition of claim 3 , wherein the phosphorus-based compound (D) is selected from phosphite compounds claim 3 , tertiary phosphines claim 3 , phosphonite compounds.6. A molded article claim 1 , being obtained from the polyarylate resin composition of .6. A molded article of claim 6 , wherein the molded article is a lamp peripheral part. The present invention relates to a polyarylate resin composition excellent in heat resistance, transparency, heat discoloration resistance and moist heat resistance, and a molded article made of the same.Conventionally, polyarylate resins and polycarbonate resins have been used for lamp covers, lenses and the like for automotive use because they are excellent in heat ...

ARTICLE WITH REDUCED ABSORBANCE

In an embodiment, an article includes a transparent layer, wherein the transparent layer has a light transmission of greater than or equal to 3%; and a second layer comprising a composition, wherein the composition comprises an infrared transmissive additive, an infrared reflective additive, or a combination comprising one or both of the foregoing and a thermoplastic polymer, and wherein the composition has a light transmission of less than 30%; wherein the transparent layer has a first transparent layer surface and wherein the second layer is located on at least a portion of the first transparent layer surface and at least a portion of the first transparent layer surface is free of the second layer. 1. An article comprising:a transparent layer, wherein the transparent layer has a light transmission of greater than or equal to 3%; anda second layer comprising a composition, wherein the composition comprises an optional infrared transmissive additive, an infrared reflective additive, and a thermoplastic polymer, wherein the thermoplastic polymer comprises a polycarbonate, a polyalkylene terephthalate, an acrylonitrile-butadiene-styrene copolymer, a polysiloxane, a polyacrylate, or a combination comprising one or more of the foregoing, and wherein the composition has a light transmission of less than 30%;wherein the transparent layer has a first transparent layer surface and wherein the second layer is located on at least a portion of the first transparent layer surface and at least a portion of the first transparent layer surface is free of the second layer;wherein the article is a window or a headlamp;wherein the second layer has a thickness of 0.1 to 5 mm thick; andwherein the light transmission is determined using 3.2 mm thick samples using ISO D1003-00, Procedure B using CIE standard illuminant C, with unidirectional viewing.2. The article of claim 1 , wherein the thermoplastic polymer comprises the polycarbonate.3. The article of claim 1 , wherein the ...

Polyolefin Compositions And Processes For Making The Same

Polyolefin compositions including phosphite additives and methods for making the same are provided. 1. A composition comprising:a) at least one polyolefin polymer,b) from 100 to 4000 parts by weight of a first antioxidant, andc) from 1 to 450 parts by weight of a second antioxidant, based on one million parts of the polyolefin polymer.2. The composition of claim 1 , wherein the first antioxidant is a hindered phenol.3. The composition of claim 2 , wherein the hindered phenol is octadecyl-3-(3 claim 2 ,5-di-tert.butyl-4-hydroxyphenyl)-propionate claim 2 , pentaerythritol tetrakis(3-(3 claim 2 ,5-di-tert-butyl-4-hydroxyphenyl)propionate) claim 2 , or a combination thereof.4. The composition of claim 1 , wherein the second antioxidant comprises a mixture of C-Calkyl aryl phosphites.5. The composition of claim 1 , wherein the second antioxidant is represented by the formula [4-(2-methylbutan-2-yl)phenyl][2 claim 1 ,4-bis(2-methylbutan-2-yl)phenyl]phosphate claim 1 , wherein x=0 claim 1 , 1 claim 1 , 2 claim 1 , 3 claim 1 , or combinations thereof.6. The composition of claim 1 , wherein the second antioxidant comprises mono-amylphenyl phosphites claim 1 , di-amylphenyl phosphites claim 1 , dimethylpropyl phosphites claim 1 , 2-methylbutanyl phosphites claim 1 , or combinations thereof.7. The composition of claim 1 , wherein the composition comprises from 750 to 2500 parts by weight of the first antioxidant claim 1 , based on one million parts of the polyolefin polymer.8. The composition of claim 1 , wherein the composition comprises from 1000 to 2000 parts by weight of the first antioxidant claim 1 , based on one million parts of the polyolefin polymer.9. The composition of claim 1 , wherein the composition further comprises one or more of neutralizing agents claim 1 , fillers claim 1 , colorants claim 1 , dyes claim 1 , pigments claim 1 , color enhancers claim 1 , whitening agents claim 1 , cavitation agents claim 1 , anti-slip agents claim 1 , lubricants claim 1 , ...

RESIN COMPOSITION INCLUDING ACRYLIC BLOCK COPOLYMER AND LIGHT DIFFUSING AGENT

A resin composition is provided which has high transparency, light guiding properties and luminescent properties and can guide light therethrough with little change in chromaticity. A shaped article such as an optical element including the resin composition is also provided. The resin composition includes an acrylic block copolymer (A) and a light diffusing agent (B), wherein the acrylic block copolymer (A) has at least one structure in which polymer blocks (a) based on methacrylic acid ester units are bonded to both ends of a polymer block (a) based on acrylic acid ester units, and has a weight average molecular weight of 10,000 to 150,000 and a tensile elastic modulus of 1 to 1,500 MPa, the light diffusing agent (B) is rutile titanium oxide having an average particle size of 0.5 to 2.0 μm, and the content of the light diffusing agent (B) is 0.5 to 10 ppm (on mass basis) based on the acrylic block copolymer (A). 1. A resin composition , comprising an acrylic block copolymer (A) and a light diffusing agent (B) , wherein{'b': 1', '2, 'the acrylic block copolymer (A) comprises at least one structure in which polymer blocks (a) based on methacrylic acid ester units are bonded to both ends of a polymer block (a) based on acrylic acid ester units, and has a weight average molecular weight of 10,000 to 150,000 and a tensile elastic modulus of 1 to 1,500 MPa,'}the light diffusing agent (B) is rutile titanium oxide having an average particle size of 0.5 to 2.0 μm, anda content of the light diffusing agent (B) is 0.5 to 10 ppm by mass, based on the acrylic block copolymer (A).3. The resin composition of claim 1 , wherein a refractive index of the acrylic block copolymer (A) is 1.485 to 1.495.4. The resin composition of claim 1 , wherein an order-disorder transition temperature (ODTT) of the acrylic block copolymer (A) is not more than 260° C.52. The resin composition of claim 1 , wherein the polymer block (a) is a copolymer block comprising 50 to 90 mass % of an acrylic acid ...

RESIN ADDITIVE COMPOSITION, THERMOPLASTIC RESIN COMPOSITION, AND MOLDED ARTICLE THEREOF

Provided are a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof. 2. A thermoplastic resin composition claim 1 , wherein the resin additive composition according to is contained in such a manner that the phosphoric ester compound (A) represented by the general formula (1) is 0.001 to 10 parts by mass based on 100 parts by mass of a thermoplastic resin.3. The thermoplastic resin composition according to claim 2 , wherein the thermoplastic resin is a polyolefin resin.4. The thermoplastic resin composition according to claim 2 , further containing 1 to 80 parts by mass of a thermoplastic elastomer (C) and 1 to 80 parts by mass of a filler (D).5. The thermoplastic resin composition according to claim 4 , wherein the thermoplastic elastomer (C) is a copolymer of ethylene and an α-olefin or a copolymer of ethylene and a vinyl ester.7. A molded article characterized by using the thermoplastic resin composition according to . The present invention relates to a resin additive composition, a thermoplastic resin composition (hereinafter, also simply referred to as “resin composition”), and a molded article thereof, and specifically to a resin additive composition which is excellent in fluidity and can impart excellent physical properties to a thermoplastic resin, a thermoplastic resin composition, and a molded article thereof.The thermoplastic resin is widely utilized for a variety of molded articles such as building materials, automobile materials, household electric and electronic materials, textile materials, packaging materials, agricultural materials, housing materials for home appliances, houseware goods, films, sheets and structural parts depending on a variety of physical properties such as molding processability and low specific gravity. In particular, a polyolefin resin such as polyethylene, polypropylene, or polybutene-1 has ...

ANTIOXIDANT BLEND FOR EMULSION POLYMERISATION RUBBERS

The present invention relates to stabilising compositions, particularly stabilising compositions which can be used to stabilise elastomeric materials, such as rubbers and/or butadiene based elastomers. The stabilising composition comprises: a first stabilising component comprising at least one phosphite antioxidant; a second stabilising component comprising at least one aminic antioxidant; and a third stabilising component comprising at least one phenolic antioxidant. Also disclosed herein is use of the stabilising composition for stabilising elastomeric materials, a stabilised composition comprising an elastomeric material and the aforementioned stabilising composition and a useful article comprising the stabilising composition. 1. A stabilising composition for an elastomer , comprising:a. at least one phosphite antioxidant;b. at least one aminic antioxidant; andc. at least one phenolic antioxidant.2. (canceled)3. The stabilising composition according to claim 1 , further comprising at least one sulphur-containing antioxidant.4. The stabilising composition according to claim 1 , wherein the phenolic antioxidant is a hindered phenolic antioxidant.5. The stabilising composition according to claim 1 , wherein the phenolic antioxidant is present in the stabilising composition in an amount of from about 20% to about 50% by weight of the stabilising composition.6. The stabilising composition according to claim 1 , wherein the phosphite antioxidant is a triaryl phosphite or a nonyl phenyl free antioxidant.7. The stabilising composition according to claim 1 , wherein the phosphite antioxidant is present in an amount from about 45% to about 70% by weight of the stabilising composition.8. The stabilising composition according to claim 1 , wherein the phosphite antioxidant is a liquid at a temperature of 50° C. or lower claim 1 , at atmospheric pressure i.e. 101.325 kPa.9. The stabilising composition according to claim 1 , wherein the aminic antioxidant is a secondary amine. ...

Pipe produced with a polymer composition comprising a polyethylen

The invention relates a pipe for the transport of water with improved resistance to chlorinated disinfectants. The pipe is produced with a polymer composition comprising polyethylene and zinc sulfide.

RESIN COMPOSITION AND RESIN MOLDED ARTICLE

A resin composition is provided and includes: a cellulose acylate (A); a cardanol compound (B); and a compound (C), and the compound (C) is at least one selected from the group consisting of a hindered phenol compound, a tocopherol compound, a tocotrienol compound, a phosphite compound, and a hydroxylamine compound. 1. A resin composition comprising:a cellulose acylate (A);a cardanol compound (B); anda compound (C) being at least one selected from the group consisting of a hindered phenol compound, a tocopherol compound, a tocotrienol compound, a phosphite compound, and a hydroxylamine compound.2. The resin composition according to claim 1 ,wherein the cellulose acylate (A) contains at least one selected from the group consisting of cellulose acetate propionate and cellulose acetate butyrate.3. The resin composition according to claim 1 ,wherein the cardanol compound (B) contains a cardanol compound having a molecular weight of 500 or less.8. The resin composition according to claim 1 , further comprising a thermoplastic elastomer (D).9. The resin composition according to claim 8 ,wherein the thermoplastic elastomer (D) contains at least one selected from the group consisting of: a core-shell structure polymer (d1) that has a core layer and a shell layer containing an alkyl (meth)acrylate polymer on a surface of the core layer; and an olefin polymer (d2) that is a polymer of an α-olefin and an alkyl (meth)acrylate and contains 60% by mass or more of a structural unit derived from the α-olefin.10. The resin composition according to claim 1 ,wherein a mass percentage of the compound (C) based on a total amount of the cellulose acylate (A), the cardanol compound (B) and the compound (C) is from 0.1% by mass to 5% by mass.11. The resin composition according to claim 1 ,wherein a content of the cellulose acylate (A) in the resin composition based on a total amount of the resin composition is 50% by mass or more.12. The resin composition according to claim 1 ,wherein a ...

Stabilised resin composition

The invention is directed to a resin composition that has both high heat resistance and high resistance against ultraviolet radiation. The invention is further directed to an article comprising said composition, and to the use of a combination of compounds for stabilising a resin composition. The resin composition of the invention comprises (A) a polypropylene resin, (B) an optionally substituted linear or branched alkyl ester of 3-(alkylated 4′-hydroxyphenyl) propionic acid having a molecular weight of 750 g/mol or less, (C) a hindered amine light stabiliser, having a molecular weight of 1250 g/mol or more, wherein the hindered amine is comprised in the backbone of the hindered amine light stabiliser molecule, and (D) a thiosynergist.

THERMOPLASTIC COMPOSITIONS, ARTICLES FORMED THEREFROM, AND METHODS OF MANUFACTURE THEREOF

A thermoplastic composition comprises, based on the total weight of the thermoplastic composition, 3 to 20 wt. % of an impact modifier composition comprising a first impact modifier and a second impact modifier; 15 to 50 wt. % of a poly(etherimide); 5 to 60 wt. % of a polycarbonate; 5 to 20 wt. % of compatibilizer component comprising a poly(carbonate-arylate ester); up to 15 wt. % of an ultraviolet light absorbing additive; 0 to 20 wt. % of TiO2; and 0.01 to 0.5 wt. %, of an organophosphite; wherein a sample of the composition has a notched Izod impact energy of at least 200 J/m at 23° C. measured in accordance to ASTM D256. 1. A thermoplastic composition comprising , based on the total weight of the thermoplastic composition ,3 to 20 wt. % of an impact modifier composition comprising a first impact modifier and a second impact modifier, preferably a core-shell acrylic rubber and a styrene-ethylene-butylene-styrene rubber;15 to 50 wt. % of a poly(etherimide);5 to 60 wt. % of a polycarbonate, preferably a poly(carbonate-siloxane);5 to 20 wt. % of compatibilizer component comprising a poly(carbonate-arylate ester);up to 15 wt. % of an ultraviolet light absorbing additive;{'sub': '2', '0 to 20 wt. % of TiO; and'}0.01 to 0.5 wt. %, of an organophosphite;wherein a sample of the composition hasa notched Izod impact energy of at least 200 J/m at 23° C. measured in accordance to ASTM D256,optionally, a yield stress retention of 80% and higher after exposure of an ISO tensile bar for 24 hours to sunscreen at a temperature of 23° C. to 80° C. under 0.5% or 1% strain compared to a non-exposed reference tested according to ISO 527 at the same temperature, andoptionally, an elongation at break retention of 75% and higher after exposure of an ISO tensile bar for 24 hours to sunscreen at a temperature of 23° C. to 80° C. under 0.5% or 1% strain compared to a non-exposed reference tested according to ISO 527 at the same temperature.2. The composition of claim 1 , comprising 3 to ...

PROCESS FOR THE PREPARATION OF SILYLATED POLYMERS HAVING LOW COLOR AND COLOR STABILITY

A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used. 130-. (canceled)32. The quenched silylated polymer of claim 31 , wherein Ris derived from poly(oxyethylene) diols claim 31 , the poly(oxypropylene) diols claim 31 , poly(oxyethylene-oxypropylene)diols claim 31 , polyoxyalkylene triols claim 31 , polytetramethylene glycols claim 31 , polyacetals claim 31 , polyhydroxy polyacrylates claim 31 , polyhydroxy polyester amides claim 31 , polyhydroxy polythioethers claim 31 , polycaprolactone diols or polycaprolactone triols.33. The quenched silylated polymer of claim 31 , wherein Ris derived from a poly(alkylene oxide) diol.34. The quenched silylated polymer of claim 32 , wherein poly(oxypropylene)diol has a number average molecular weight of from 4 claim 32 ,000 to 20 claim 32 ,000 grams/mole.35. The quenched silylated polymer of claim 31 , wherein R′ is derived from a diisocyanate extended poly(propylene oxide) diol.36. The quenched silylated polymer of claim 31 , wherein Ris —CH— claim 31 , —CHCH— claim 31 , —CHCHCH— or —CHCH (CH)CH—.37. The quenched silylated polymer of claim 31 , wherein Ris —CHor —CHCH.38. The quenched silylated polymer of claim 31 , wherein Ais —O— or —NH—.39. The quenched silylated polymer of claim 31 , wherein Ais —NH— or —NCH—40. The quenched silylated polymer of claim 31 , where a is 2.41. The quenched silylated polymer of claim 31 , where h is 1 or 2.42. The quenched silylated polymer of claim 34 , wherein Ris —CH— claim 34 , —CHCH— claim 34 , —CHCHCH— or —CHCH (CH)CH—; Ris —CHor —CHCH; Ais —O— or —NH—; Ais —NH— or —NCH—; and a is 2.43. The quenched silylated polymer of claim 35 , wherein Ris —CH— claim 35 , —CHCH— claim 35 , —CHCHCH— or —CHCH (CH)CH—; Ris —CHor —CHCH; ...

Thermoplastic Resin Composition and Thermoplastic Resin Molded Body

The present invention provides a thermoplastic resin composition having a gel content of 40% by mass or more, comprising: a rubber-containing polymer (A); and a phosphorus-based antioxidant (B) having an alkyl group having 8 or more carbon atoms, wherein a melt flow rate (M1) for a retention time of 4 minutes measured in accordance with JIS K7210 under conditions of a temperature of 280° C. and a load of 49 N is 20 [g/10 min] or more. Even with a high gel content, the thermoplastic resin composition is high in fluidity and thermal stability during molding and easy to handle, and can be stably produced. 1. A thermoplastic resin composition having a gel content of 40% by mass or more , comprising:a rubber-containing polymer (A); anda phosphorus-based antioxidant (B) having an alkyl group having 8 or more carbon atoms, whereina melt flow rate (M1) for a retention time of 4 minutes measured in accordance with JIS K7210 under conditions of a temperature of 280° C. and a load of 49 N is 20 [g/10 min] or more.2. The thermoplastic resin composition according to claim 1 , wherein an MFR retention ratio (M2/M1) claim 1 , which is a ratio of a melt flow rate (M2) for a retention time of 30 minutes claim 1 , is 0.8 to 1.2.3. The thermoplastic resin composition according to claim 1 , wherein an MFR retention ratio (M3/M1) claim 1 , which is a ratio of a melt flow rate (M3) for a retention time of 60 minutes claim 1 , is 0.8 to 1.2.4. The thermoplastic resin composition according to claim 1 , further comprising a phenolic antioxidant (C).5. The thermoplastic resin composition according to claim 1 , wherein a heating weight loss (30 min) at 30 minutes after heating to 280° C. in an air atmosphere is 10% by mass or less.6. The thermoplastic resin composition according to claim 1 , wherein a heating weight loss (60 min) at 60 minutes after heating to 280° C. in an air atmosphere is 10% by mass or less.7. The thermoplastic resin composition according to claim 1 , wherein the ...

ALIPHATIC COPOLYESTERS COMPOSITIONS WITH IMPROVED IMPACT AND WEATHER RESISTANCE

Disclosed are polymeric compositions that exhibit improved weathering and ultraviolet radiation resistance. The compositions comprise a polymer, at least one ultra-violet light (UV) absorber, at least one primary antioxidant, at least one secondary antioxidant, at least one hindered amine light stabilizer and at least one chain extending agent. In some embodiments the invention comprises a polyester; at least one triazine UV absorber; at least one hindered phenol primary antioxidant; at least one phosphite secondary antioxidant; at least one hindered amine light stabilizer and at least one styrene-acrylate copolymer. 1. An ultraviolet light degradation resistant composition comprising:a. a polymer;b. at least one UV absorber;c. at least one primary antioxidant;d. at least one secondary antioxidant;e. at least one hindered amine light stabilizer; andf. at least one chain extending agent.2. The composition of wherein said polymer is selected from the group consisting of polyesters claim 1 , copolyesters claim 1 , liquid crystalline polyesters/amides/imides claim 1 , polyesteramides claim 1 , polyimides claim 1 , polyetherimides claim 1 , polyurethanes claim 1 , polyureas claim 1 , polybenzimidazole claim 1 , polybenzoxazoles claim 1 , polyimines claim 1 , polycarbonate claim 1 , and polyamides3. The composition of wherein said polymer is selected from the group consisting of polycaprolactone claim 1 , polycaprolactam claim 1 , polyphenylene sulfide claim 1 , polyphenylene oxide claim 1 , poly ether ether ketone claim 1 , poly ether ketone claim 1 , poly ether ketone ketone.4. The composition of wherein said UV absorber B is selected from the group consisting of benzotriazoles claim 1 , benzophenones claim 1 , triazines claim 1 , benzoxazinones claim 1 , oxanilides and benzylidene malonates and combinations thereof.5. The composition of wherein said primary antioxidant is selected from the group consisting of hindered phenols and arylamines.6. The composition of ...

CHLORINE-RESISTANT CROSSLINKABLE POLYOLEFIN COMPOSITIONS AND ARTICLES MADE THEREFROM

The present invention relates to chlorine resistant crosslinkable silane-containing polyolefin compositions and stabilizer masterbatch compositions, their preparation, and articles made therefrom. These crosslinkable silane-containing compositions contain a mixture of antioxidants, light absorbers and stabilizers that provide resistance to the levels of chlorine used in potable water and to light, thereby extending the useful life of said articles made therefrom, such as potable water pipes and valves, bottles, tanks, and the like. 149-. (canceled)50. A crosslinkable silane-containing polyolefin composition comprising:(a) a polyolefin containing at least one hydrolysable silyl group;(b) a sterically hindered phenol antioxidant;(c) a phosphite processing stabilizer;(d) a sterically hindered amine light stabilizer;(e) a substituted benzotriazol ultraviolet light absorber; and(f) a curing catalyst.52. The crosslinkable silane-containing polyolefin composition of wherein the metal deactivator is selected from the group consisting of 1 claim 51 ,2-bis(3 claim 51 ,5-di-tert-butyl-4-hydroxyhydrocinnamoyl)hydrazine claim 51 , 2 claim 51 ,2′-oxamidobis(ethyl-3-(3 claim 51 ,5-di-tert-4-hydroxyphenyl)-propionate claim 51 , tris[2-tert-butyl-4-(5-tert-butyl-4-hydroxy-2-methylphenyl)sulfanyl-5-methylphenyl]phosphate claim 51 , 2-[[2-[2-[3-(3 claim 51 ,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]ethylamino]-2-oxoacetyl]amino]ethyl 3-(3 claim 51 ,5-ditert-butyl-4-hydroxyphenyl)propanoate claim 51 , and mixtures thereof.53. The crosslinkable silane-containing polyolefin composition of claim 50 , wherein the composition comprises:90 to 99.95 weight percent of the polyolefin containing at least one hydrolysable silyl group (a);0.01 to 4 weight percent of the sterically hindered phenol antioxidant (b);0.01 to 2 weight percent of the phosphite processing stabilizer (c);0.01 to 2 weight percent of the sterically hindered amine light stabilizer (d);0.01 to 2 weight percent of the ...

POLYAMIDE RESIN COMPOSITION AND MOLDED ARTICLE PRODUCED THEREFROM

[Problem] 2: The polyamide resin composition according to claim 1 , wherein the phosphinic acid salt (B) is contained in an amount of 7 to 30 parts by mass based on 100 parts by mass of the polyamide (A).5: The polyamide resin composition according to claim 1 , wherein the phosphorous acid ester (C) is contained in an amount of 0.2 to 2 parts by mass based on 100 parts by mass of the polyamide (A).6: The polyamide resin composition according to claim 1 , further comprising (D) a phenol-based stabilizer in an amount of 0.001 to 7 parts by mass based on 100 parts by mass of the polyamide (A).7: The polyamide resin composition according to claim 1 , wherein the phenol-based stabilizer (D) is contained in an amount of 0.2 to 0.5 parts by mass based on 100 parts by mass of the polyamide (A).8: The polyamide resin composition according to claim 1 , wherein the polyamide (A) has an aromatic dicarboxylic acid unit and an aliphatic diamine unit.9: The polyamide resin composition according to claim 8 , wherein the aliphatic diamine is an aliphatic diamine having 4 to 18 carbon atoms.10: The polyamide resin composition according to claim 1 , wherein the phosphinic acid salt (B) is aluminum diethylphosphinate.11: The polyamide resin composition according to claim 1 , further comprising (E) a reinforcing material.12: The polyamide resin composition according to claim 11 , wherein the reinforcing material (E) is a fibrous reinforcing material.13: A molded article comprising the polyamide resin composition according to . The present invention relates to a polyamide resin composition and a molded article including the same.Polyamides are excellent in dynamic properties or heat resistance, and hence, they are frequently used in the field of automotive components or field of electric and electronic components. In the field of electric and electronic components, a surface mounting process with high mounting efficiency of components is diffused, and heat-resistant polyamides with high ...

Polycarbonate Resin and Preparation Method Therefor

A polycarbonate resin of the present invention comprises: a repeat unit represented by chemical formula 1 in the specification; a repeat unit represented by chemical formula 2; and a repeat unit represented by chemical formula 3. The polycarbonate resin has excellent flame retardancy, thermal resistance, transparency, impact resistance, etc. 2. The polycarbonate resin according to claim 1 , wherein a molar ratio of the repeat unit represented by Formula 1 to the repeat unit represented by Formula 2 ranges from about 5:1 to about 100:1 claim 1 , and the unit represented by Formula 3 is present in an amount of about 0.01 parts by mole to about 10 parts by mole relative to 100 parts by mole of the repeat unit represented by Formula 1 and the repeat unit represented by Formula 2.3. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a weight average molecular weight of about 10 claim 1 ,000 g/mol to about 200 claim 1 ,000 g/mol.4. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has an intrinsic viscosity of about 0.1 dl/g to about 3.0 dl/g.5. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a Mark-Houwink constant of about 0.50 to about 0.65.6. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a flame retardancy of V-1 or more claim 1 , as measured on an about 2.0 mm thick specimen by the UL-94 vertical test method.7. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a notched Izod impact strength of about 6 kgf·cm/cm to about 20 kgf·cm/cm claim 1 , as measured on an about ⅛″ thick specimen in accordance with ASTM D256.8. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a transmittance of about 85% or more claim 1 , as measured on an about 3.2 mm thick specimen in accordance with ASTM D1003.9. The polycarbonate resin according to claim 1 , wherein the polycarbonate resin has a ...

HIGH-DENSITY MICROPOROUS CARBON AND METHOD FOR PREPARING SAME

A gelled aqueous polymer composition made from a resin produced by polycondensation of at least: a polyhydroxybenzene R, preferably resorcinol, hexamethylenetetramine HMTA, an anionic polyelectrolyte PA, preferably phytic acid. An aerogel obtained by drying these microparticles, and porous carbon microspheres obtained from the gel microparticles by pyrolysis. A method for producing a polymerised aqueous gel, an aerogel and porous carbon microspheres. Electrodes and electrochemical cell prepared from the porous carbon particles. 120-. (canceled)21. A gelled aqueous polymeric composition based on a resin resulting from the polycondensation of at least the following monomers:a polyhydroxybenzene R,hexamethylenetetramine HMTA,an anionic polyelectrolyte AP with a molar mass of less than or equal to 2000 g/mol.22. The composition as claimed in claim 21 , wherein the polyhydroxybenzene R is resorcinol.23. The composition as claimed in claim 21 , in which the anionic polyelectrolyte comprises nitrogen atoms or phosphorus atoms.24. The composition as claimed in claim 23 , in which the anionic polyelectrolyte is phytic acid HPhy.25. The composition as claimed in in which the anionic polyelectrolyte comprises several carboxylic acid functional groups.26. The composition as claimed in claim 25 , in which the anionic polyelectrolyte is chosen from: citric acid claim 25 , oxalic acid claim 25 , fumaric acid claim 25 , maleic acid claim 25 , succinic acid claim 25 , ethylenediaminetetraacetic acid claim 25 , polyacrylic acids or polymethacrylic acids.27. The composition as claimed in claim 21 , which is in the form of gel microparticles in an aqueous medium.28. The composition as claimed in claim 21 , in which the monomers comprise at least one cationic polyelectrolyte.29. The composition as claimed in claim 21 , in which the AP/HMTA molar ratio is from 0.010 to 0.150.30. The composition as claimed in claim 21 , in which the ratio by weight R/W of the polyhydroxybenzene claim 21 , ...

Glass fiber filled thermoplastic composition having good mechanical properties

The invention relates to a composition for producing a thermoplastic moulding material, wherein the composition contains the following constituents:A) at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyestercarbonate and polyester,B) at least one anhydride-functionalized ethylene-α-olefin copolymer or ethylene-α-olefin terpolymer having a weight-average molecular weight Mw of 50000 to 500000 g/mol determined by high-temperature gel permeation chromatography using ortho-dichlorobenzene as solvent against polystyrene standards,C) glass fibres,and also to a process for producing the moulding material, to the moulding material itself, to the use of the composition or of the moulding material for producing moulded articles and to the moulded articles themselves.

Polyolefin materials for rotational molding applications having improved impact properties and color stability

Provided herein are polyolefin-based compositions useful for making rotomolded parts having useful properties, including those related to impact resistance and color. In one aspect, there are provided compositions comprising (a) a rotational molded polyolefin, comprising a resin, wherein the resin is polyethylene or a copolymer thereof, having a melt index (MI) ranging from about 1 g/10 minutes to about 10 g/10 minutes; and (b) an additive package comprising: (i) an antioxidant; (ii) a processing stabilizer; (iii) optionally a UV light stabilizer; (iv) optionally a fatty acid-based acid scavenger comprising a metal salt of a fatty acid; and (v) a dihydrotalcite-based acid scavenger present in the composition at between about 800 ppm to about 3,000 ppm. In some embodiments, the ARM Impact Percent Ductility is greater than or equal to about 60% for a molded part made from the cured composition and measured after the composition has been cured between 18-24 minutes at a temperature of 550° F.

PHENOL FREE STABILIZATION OF POLYETHYLENE

This invention provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. The stabilizer package of this invention is “phenol free” and comprises at least two selected phosphite stabilizers. In some embodiments, the process is suitable for the manufacture of polyethylene film. 1. A process for stabilizing a thermoplastic polyolefin during melt processing conditions said process comprising the step of incorporating into said thermoplastic polyolefin a stabilizer package comprising:(i) a first phosphite:tris(2-4-di-tert-butylphenyl)phosphite; and(ii) a second phosphite composition consisting essentially of phosphorous acid, mixed 2,4-bis(1,1-dimethylpropyl)phenyl and 4-(1,1-dimethylpropyl) phenyl triesters,and subjecting said thermoplastic polyolefin to sufficient temperature to melt said polyolefin;with the proviso that said stabilizer package is essentially free of any additive selected from hindered phenolic antioxidants, lactone stabilizers and hydroxylamine stabilizers.2. The process according to wherein said stabilizer formulation further comprises an acid neutralizer.3. The process according to wherein said stabilizer formulation further comprises a hindered amine light stabilizer.4. The process according to wherein said thermoplastic polyolefin is a linear polyethylene which contains from 0.5 to 10 ppm of at least one transition metal selected from titanium claim 1 , vanadium claim 1 , zirconium and chromium.5. The process according to wherein said linear polyethylene is a copolymer of ethylene and at least one olefin selected from butene claim 4 , pentene claim 4 , hexene and octene.6. The process according to wherein said linear polyethylene has a density of from 0.880 to 0.960 g/cc and a melt index claim 5 , 12 claim 5 , as determined by ASTM D1238 of from 0.3 to 150 g/10 minutes.7. The process according to wherein said melt processing conditions comprise a film extrusion at a temperature of from 200° C. to 320° ...

POLYESTER COMPOSITION SUITABLE FOR ULTRASONIC WELDING AND PREPARATION METHOD THEREOF

The present disclosure provides a polyester composition suitable for ultrasonic welding and preparation method thereof, the composition includes the following components in parts by weight: 30˜50 parts of poly(1,4-cyclohexylene dimethylene terephthalate), 40˜60 parts of ABS, 5˜10 parts of a melt enhancer, 0.1˜1 parts of an antioxidant, and 0.1˜1 parts of a lubricant. Compared with the existing technologies, the polyester composition provided by the present disclosure improves melt strength by using the melt enhancer. The melt enhancer used is an ultra-high density polyethylene resin having a glycidyl methacrylate group after an irradiation treatment, so that the compatibility of the melt enhancer to the poly(1,4-cyclohexylene dimethylene terephthalate) is improved. In addition, by controlling a glass-transition temperature of the composition, no chipping is generated during ultrasonic welding, and the composition has a high welding strength, which is suitable for ultrasonic welding. 1. A polyester composition suitable for ultrasonic welding , wherein the composition comprises the following components in parts by weight:30˜50 parts of poly(1,4-cyclohexylene dimethylene terephthalate),40˜60 parts of ABS,5˜10 parts of a melt enhancer,0.1˜1 parts of an antioxidant, and0.1˜1 parts of a lubricant.2. The polyester composition suitable for ultrasonic welding according to claim 1 , wherein in the poly(1 claim 1 ,4-cyclohexylene dimethylene terephthalate) claim 1 , 1 claim 1 ,4-cyclohexanedimethanol has a mass percentage of 70˜90%.3. The polyester composition suitable for ultrasonic welding according to claim 1 , wherein the poly(1 claim 1 ,4-cyclohexylene dimethylene terephthalate) has a weight-average molecular weight of 25 claim 1 ,000-40 claim 1 ,000.4. The polyester composition suitable for ultrasonic welding according to claim 1 , wherein the ABS has a weight-average molecular weight of 120 claim 1 ,000˜150 claim 1 ,000.5. The polyester composition suitable for ...

POLYMERIZABLE COMPOSITION FOR OPTICAL MATERIAL, AND MOLDED PRODUCT

A polymerizable composition for an optical material according to the present invention includes (A) phosphite triester represented by Formula (1), (D) a photochromic compound, (E) a polyisocyanate compound, and (F) a difunctional or higher functional active hydrogen compound. 4. The polymerizable composition for an optical material according to claim 1 ,wherein a content of the phosphite triester (A) is 0.01% by weight to 0.5% by weight with respect to 100% by weight of the polymerizable composition for an optical material.5. The polymerizable composition for an optical material according to claim 1 ,wherein the phosphite triester (A) is a compound including an aromatic ring.6. The polymerizable composition for an optical material according to claim 1 ,wherein the phosphite triester (A) is at least one selected from triphenyl phosphite, trisnonylphenyl phosphite, tricresyl phosphite, diphenyl(2-ethylhexyl)phosphite, diphenylisodecyl phosphite, diphenyltridecyl phosphite, tetraphenyl dipropylene glycol diphosphite, and tris(2,4-dibutylphenyl) phosphite.713-. (canceled)15. The polymerizable composition for an optical material according to claim 1 ,wherein the polyisocyanate compound (E) is at least one selected from hexamethylene diisocyanate, pentamethylene diisocyanate, m-xylylene diisocyanate, p-xylylene diisocyanate, isophorone diisocyanate, bis(isocyanatomethyl) cyclohexane, dicyclohexylmethane diisocyanate, 2,5-bis(isocyanatomethyl)bicyclo-[2.2.1]-heptane, 2,6-bis(isocyanatomethyl)bicyclo-[2.2.1]-heptane, tolylene diisocyanate, phenylene diisocyanate, and diphenylmethane diisocyanate.1618-. (canceled)19. A molded product comprised of a cured product of the polymerizable composition for an optical material according to .20. An optical material comprised of the molded product according to .21. A plastic lens comprised of the molded product according to .22. (canceled)23. A master batch for the polymerizable composition for an optical material according to claim 1 ...

HALOGEN-FREE PLASTIC FLOOR TILE AND MODIFIED POLYESTER COMPOSITION FOR USE IN PRODUCING THE SAME

A modified polyester resin composition comprises a combination of a PET polyester, a PCT polyester, a CHDM modified copolyester comprising PCTA, PCTG or PETG, and a modified polymer at least comprising TPU or EPDM, wherein the modified polymer accounts for 3-25 wt % and the rest accounts for 97-75 wt %, based on the total weight of the resin; and the modified polyester resin composition is suited for use in a halogen-free, heavy metal-free, and volatile organic compound-free polyester-based plastic floor tile excellent in higher resistance to wear and tear, better tensile strength, more preferable resistance to both lit cigarette e and solvents, and particularly being friendliness to environment and not hazardous to health. 1. A modified polyester resin composition for use in producing a halogen-free and heavy metal-free polyester-based plastic floor tile excellent in high resistance to wear and tear , better tensile strength and preferable resistance to both lit cigarette and solvents , consisting of the following compositions: 'wherein the modified polymer accounts for 3-25 wt % and the rest accounts for 97-75 wt %, based on the total weight of the resin;', '(a) resin of 100 PHR, including a PET polyester, a PCT polyester, a CHDM modified copolyester selected one or more from the group consisting of PCTA, PCTG and PETG, and a modified polymer selected one or more from the group consisting of polybutadiene, TPU, styrene-butadiene copolymer, ethylene-propylene elastomer, polyolefin, polyether-ester type elastomer, EPDM, MBS, SBS and SEBS;'}(b) processing aid of 0.3-6.0 PHR; selected one or more from the group consisting of an aromatic carboxylate, a propionate and a phosphate;{'sub': 28', '32', '28', '32', '28', '32, '(c) lubricant of 0.1-5.0 PHR; selected one or more from the group consisting of C-Cfatty acid fatty acid, C-Cfatty acid fatty acid esters, C-Cfatty acid fatty alcohol and paraffin oil;'}(d) plasticizer of 0.1-50 PHR; selected one or more from the group ...

BISPHENOL POLYETHER OLIGOMERS, METHODS OF MANUFACTURE, AND POLYCARBONATES MADE THEREFROM

A bisphenol polyether oligomer composition comprising greater than 90 wt. % of an oligomer of the formula 2. The bisphenol polyether oligomer composition of claim 1 , wherein the composition does not exhibit a half maximal inhibitory concentration (IC) less than 0.00025 M for alpha or beta in vitro estradiol receptors.5. The bisphenol polyether oligomer composition of claim 4 , wherein Ris methyl or phenyl claim 4 , and p claim 4 , q claim 4 , j claim 4 , and t are 0.8. The polyether polycarbonate of claim 7 , comprising from 5 to 500 of polycarbonate repeat units.9. The polyether polycarbonate of claim 7 , wherein each thermolytic and hydrolytic degradation product of each of the repeating carbonate units in the polycarbonate does not exhibit a half maximal inhibitory concentration (IC) less than 0.00025 M for alpha or beta in vitro estradiol receptors.10. The polyether polycarbonate of claim 7 , wherein the polycarbonate has a glass transition temperature of greater than 135° C.11. The polyether polycarbonate of claim 7 , wherein the endcap is a phenoxy group.12. The polyether polycarbonate of claim 7 , further havingan Mw of 3,000 to 80,000 Daltons,a phenolic end group content less than 20 meq/kg,a total chloride content less than 50 ppm,a transition metal content less than 50 ppm, anda residual phenolic monomer content less than 100 ppm.14. The polyether polycarbonate of claim 7 , whereinthe polycarbonate is a poly(ester carbonate) further comprising repeating ester units derived from a dicarboxylic acid monomer, and{'sub': '50', 'the dicarboxylic acid monomer does not exhibit a half maximal inhibitory concentration (IC) less than 0.00025 M for alpha or beta in vitro estradiol receptors.'}15. The polyether polycarbonate of claim 14 , wherein the dicarboxylic acid monomer is a isophthalic acid claim 14 , terephthalic acid claim 14 , a Caliphatic dicarboxylic acid claim 14 , a hydroxy benzoic acid claim 14 , or a combination comprising at least one of the ...

HINDERED AMINE LIGHT STABILIZERS

A compound of formula (I) 2. The compound according to claim 1 , wherein{'sub': 1', '2', '1', '8', '1', '18, 'Rand Rindependently of one another are hydrogen, C-Calkyl, C-Calkoxy or cyclohexyloxy; and'}{'sub': 3', '4', '1', '6, 'Rand Rindependently of one another are C-Calkyl.'}4. A composition comprising:an organic material susceptible to degradation induced by light, heat or oxidation, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the compound according to .'}5. The composition according to claim 4 , wherein the organic material is a thermoplastic polymer.6. The composition according to claim 4 , wherein the organic material is a polyolefin claim 4 , an acrylonitrile/butadiene/styrene claim 4 , a polyvinyl chloride claim 4 , a polymethylmethacrylate claim 4 , a polyamide or a polyoxymethylene.7. The composition according to claim 4 , wherein the organic material is a thermoplastic polyolefin.8. The composition according to claim 4 , wherein the organic material is a thermoplastic polyethylene or polypropylene.9. The composition according to claim 4 , further comprising a phenolic antioxidant and/or a phenolic phosphite.10. The composition according to claim 9 , wherein the phenolic antioxidant is pentaerythritol tetrakis[3 claim 9 ,5-di-tert-butyl-4-hydroxyphenylpropionate] claim 9 , octadecyl-3-(3 claim 9 ,5-di-tert-butyl-4-hydroxyphenyl)proprionate claim 9 , 1 claim 9 ,3 claim 9 ,5-tris(3 claim 9 ,5-di-tert-butyl-4-hydroxybenzyl)-2 claim 9 ,4 claim 9 ,6-trimethylbenzene claim 9 , N claim 9 ,N′-bis(3 claim 9 ,5-di-tert-butyl-4-hydroxyphenylpropionyl)hexamethylene-diamide or 1 claim 9 ,3 claim 9 ,5-tris[3 claim 9 ,5-di-tert-butyl-4-hydroxybenzyl]isocyanurate claim 9 , 2 claim 9 ,4-di-t-butylphenyl-3 claim 9 ,5-di-t-butyl-4-hydroxybenzoate or bis(1 claim 9 ,2 claim 9 ,2 claim 9 ,6 claim 9 ,6-pentamethylpiperidin-4-yl)-butyl(3 claim 9 ,5-di-t-butyl-4-hydroxybenzyl)malonate) claim 9 ,and the phenolic phosphite is tris[2,4-di-tert-butyl phenyl]phosphite.11. ...

STABILIZATION OF DCOIT IN AQUEOUS SYSTEMS

An aqueous dispersion comprising: (a) at least one of an acrylic polymer and an inorganic pigment; (b) 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (c) an alkyl acetoacetate. 1. An aqueous dispersion comprising: (a) at least one of an acrylic polymer and an inorganic pigment; (b) 4 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (c) an alkyl acetoacetate.2. The aqueous dispersion of in which the acrylic polymer comprises at least 75 wt % polymerized units of monomers selected from (meth)acrylic acid and C-Calkyl (meth)acrylates and the inorganic pigment is selected from the group consisting of titanium dioxide claim 1 , kaolin claim 1 , talc claim 1 , calcium carbonate claim 1 , nepheline syenite claim 1 , barite claim 1 , mica claim 1 , silica and combinations thereof.3. The aqueous dispersion of in which a mole ratio of the alkyl acetoacetate to 4 claim 2 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one is from 0.3:1 to 20:1.4. An aqueous composition comprising: (a) an emulsion polymer; (b) an inorganic pigment; (c) 4 claim 2 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (d) an alkyl acetoacetate.5. An aqueous composition comprising: (a) 4 claim 2 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (b) an aliphatic acid anhydride comprising from four to thirty carbon atoms.6. The aqueous dispersion of in which a mole ratio of the anhydride to 4 claim 5 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one is from 0.3:1 to 20:1.7. The aqueous dispersion of in which the aliphatic acid anhydride is an anhydride of an aliphatic carboxylic or dicarboxylic acid.8. An aqueous composition comprising: (a) 4 claim 6 ,5-dichloro-2-n-octyl-4-isothiazolin-3-one; and (b) at least one of: (i) an organic phosphorus acid or salt thereof or (ii) a carboxylic or dicarboxylic acid ester comprising from four to thirty carbon atoms.9. The aqueous dispersion of in which a mole ratio of the organic phosphorus acid or salt thereof or the carboxylic or dicarboxylic acid ester to DCOIT is from 0.3:1 to 20 ...

METHOD FOR THE MANUFACTURE OF A COLORED POLYMER COMPOSITION

Method for the manufacture of a colored polymer composition comprising a polymer, a release agent and a colorant, the method comprising the steps of feeding a solid form of a release agent composition comprising said release agent and said colorant to a feed section of a melt mixing device, feeding said polymer to said melt mixing device and mixing said release agent composition and said polymer in said melt mixing device at a temperature above the melting temperature of said polymer, wherein—said colorant is a pigment, or a dye which is soluble in said release agent, —said polymer comprises or consists of polycarbonate, —the release agent is selected from the group consisting of penta-erythritol tetra stearate, glycerol monostearate, glycerol tristearate and mixtures thereof. 1. A method for the manufacture of a colored polymer composition comprising a polymer , a release agent and a colorant , the method comprising the steps offeeding a solid form of a release agent composition comprising said release agent and said colorant to a feed section of a melt mixing device, and said colorant is a pigment, or a dye which is soluble in said release agent,', 'said polymer composition comprises polycarbonate, and', 'the release agent consists of penta-erythritol tetra stearate, glycerol monostearate, glycerol tristearate or a mixture thereof., 'feeding said polymer to said melt mixing device and mixing said release agent composition and said polymer in said melt mixing device at a temperature above the melting temperature of said polymer, wherein'}2. The method of wherein said colorant comprises a dye.3. The method of wherein the solid form of the release agent consists of one or more of pellets claim 1 , powder claim 1 , flakes or beads.4. The method of wherein the release agent composition further comprises one or more functional additives claim 1 , wherein the one or more functional additives comprises anti-oxidants claim 1 , UV stabilisers claim 1 , hydrolytical ...

FAST CURING, TRANSPARENT AND TRANSLUCENT, NON-HALOGENATED FLAME RETARDANT SYSTEMS

Methods for curing unsaturated polyesters or vinyl esters in compositions that include oligomeric phosphonates, and combinations thereof and compositions and cured polymers made by these methods are described herein. 1. A cured polymer comprising an unsaturated polyester , an oligomeric phosphonate , and a cobalt containing curing agent.2. The cured polymer of claim 1 , wherein the unsaturated polyester is selected from the group consisting of ortho-resins based on phthalic anhydride claim 1 , maleic anhydride claim 1 , or fumaric acid and glycols claim 1 , such as 1 claim 1 ,2-propylene glycol claim 1 , ethylene glycol claim 1 , diethylene glycol claim 1 , triethylene glycol claim 1 , 1 claim 1 ,3-propylene glycol claim 1 , dipropylene glycol claim 1 , tripropylene glycol claim 1 , neopentyl glycol or hydrogenated bisphenol-A claim 1 , iso-resins prepared from isophthalic acid claim 1 , maleic anhydride or fumaric acid claim 1 , and glycols claim 1 , bisphenol-A-fumarates derived from bisphenol-A and fumaric acid claim 1 , chlorendics prepared from chlorine/bromine containing anhydrides or phenols claim 1 , and vinyl ester resins claim 1 , vinyl ester which can be prepared from epoxy resins such as claim 1 , for example claim 1 , diglycidyl ether of bisphenol-A claim 1 , epoxies of the phenol-novolac type claim 1 , or epoxies based on tetrabromobisphenol-A reacted with (meth)acrylic acid or acrylamide monomers4. The cured polymer of claim 3 , wherein —O—Ar—O— is derived from a dihydroxy compound selected from the group consisting of resorcinols claim 3 , hydroquinones claim 3 , and bisphenols claim 3 , such as bisphenol A claim 3 , bisphenol F claim 3 , and 4 claim 3 ,4′-biphenol claim 3 , phenolphthalein claim 3 , 4 claim 3 ,4′-thiodiphenol claim 3 , 4 claim 3 ,4′-sulfonyldiphenol claim 3 , 1 claim 3 ,1-bis-(4-hydroxyphenyl)-3 claim 3 ,3 claim 3 ,5-trimethylcyclohexane claim 3 , and combinations thereof.5. The cured polymer of claim 1 , wherein the oligomeric ...

Process For Producing Functionalized Polymers

A method for method for preparing a functionalized polymer, the method comprising the steps of preparing an active polymerization mixture including a reactive polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst; introducing a heterocyclic nitrile compound with the reactive polymer to form a functionalized polymer within the polymerization mixture; introducing a quenching agent to the polymerization mixture including the functionalized polymer, where the ratio of water or protic hydrogen atoms in the quenching agent to the lanthanide atoms in the lanthanide-based catalyst is less than 1500 to 1. 1. A method for preparing a functionalized polymer , the method comprising the steps of:(i) preparing an active polymerization mixture including a reactive polymer by polymerizing conjugated diene monomer with a lanthanide-based catalyst;(ii) introducing a heterocyclic nitrile compound with the reactive polymer to form a functionalized polymer within the polymerization mixture; and(iii) introducing a quenching agent to the polymerization mixture including the functionalized polymer, where the ratio of water or protic hydrogen atoms in the quenching agent to the lanthanide atoms in the lanthanide-based catalyst is less than 1500 to 1.2. The method of claim 1 , where the quenching agent is selected from the group consisting of alcohols claim 1 , carboxylic acids claim 1 , inorganic acids claim 1 , water claim 1 , and mixtures thereof.3. The method of claim 1 , where the amount of quenching agent is sufficient to inactivate catalyst components of the lanthanide-based catalyst system.4. The method of claim 1 , where the ratio of water or protic hydrogen atoms in the quenching agent to the lanthanide atoms in the lanthanide-based catalyst is less than 1450 to 1.5. The method of claim 1 , where the heterocyclic nitrile compound is defined by the formula θ-C≡N or θ-R—C≡N claim 1 , where θ is a heterocyclic group and R is a divalent organic group.6. ( ...

POLYIMIDE RESIN FILM AND METHOD FOR PRODUCING POLYIMIDE RESIN FILM

A method for producing a polyimide resin film, including: a coating step of forming a coated film by coating a polyimide resin composition containing a polyimide resin, an antioxidant, and a solvent on a substrate; and a drying step of drying the coated film in air at 180° C. or more, the antioxidant being a phenol-based antioxidant, and a content of the phenol-based antioxidant being 0.05 part by mass or more per 100 parts by mass of the polyimide resin. 1. A method for producing a polyimide resin film , comprising: a coating step of forming a coated film by coating a polyimide resin composition containing a polyimide resin , an antioxidant , and a solvent on a substrate; and a drying step of drying the coated film in air at 180° C. or more ,the antioxidant being a phenol-based antioxidant, anda content of the phenol-based antioxidant being 0.05 part by mass or more per 100 parts by mass of the polyimide resin.2. The method for producing a polyimide resin film according to claim 1 , comprising claim 1 , between the coating step and the drying step claim 1 , a primarily dried film producing step of providing a primarily dried film by heating the coated film at a heating temperature of 50 to 110° C. for a heating period of 30 to 90 minutes.3. The method for producing a polyimide resin film according to claim 1 , wherein the solvent is at least one selected from the group consisting of N claim 1 ,N-dimethylacetamide and γ-butyrolactone.4. The method for producing a polyimide resin film according to claim 1 , wherein the polyimide resin composition contains a sulfur-based antioxidant and/or a phosphorus-based antioxidant claim 1 , anda total content of the sulfur-based antioxidant and/or the phosphorus-based antioxidant is 10 parts by mass or less per 100 parts by mass of the polyimide resin.5. A polyimide resin film claim 1 , which is composed of a dried product of a polyimide resin composition containing a polyimide resin and a phenol-based antioxidant and has a ...

CYCLOALIPHATIC POLYPHOSPHITE POLYMER STABILIZERS

A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain. 3. A process for the preparation of a polymeric polyphosphite comprising the steps of:reacting a triphosphite with a limiting molar amount of a dihydroxy-terminated reactant with a molar excess of a monofunctional chain stopper;adding a base; at least one monohydroxy-terminated reactant;', {'sup': 7', '8', '9', '7', '8', '9, 'sub': a', 'b', '1-6', '1-6, 'at least one dihydroxy-terminated reactant selected from the group HO—[R]—R—[R]—OH, where Ris a linear or branched Calkylene, Ris a saturated carbocyclic ring having from 5 to 10 carbon atoms in the ring, and Ris a linear or branched Calkylene, and further wherein a and b are values of 0 and 1; and'}, 'a trifunctional reactant comprising at least one phosphorus moiety; and', 'isolating said alkylphenol-free phosphite., 'further wherein said polymeric polyphosphite is a reaction product of, 'heating said triphosphite, a dihydroxy-terminated reactant wherein said dihydroxy-terminated reactant comprises at least at least one saturated carbocyclic ring and monofunctional chain stopper and base; and'}4. The process of wherein said step of reacting further comprises the step of:adding at least one second polyalkylene glycol dihydroxy-terminated reactant.5. The process of whereinsaid polyalkylene glycol is selected from the group consisting of polyethylene glycol and polypropylene glycol.7. The polymeric polyphosphite of claim 6 , in which Formula B is present and wherein claim 6 ,{'sub': 2', '2', '3', '2, 'Y represents a —CHCH— or —CH(CH)CH— group.'}8. The polymeric polyphosphite of claim 6 , in which Formula B is present and wherein claim 6 ,m is from 5 to 20.9. The polymeric polyphosphite of claim 6 ,which contains no units of Formula B.10. The polymeric polyphosphite of claim 6 , in which{'sup': '2', 'sub': '10-20', 'Rrepresents a Calkyl ...

Polycarbonate resin composition

Disclosed is a polycarbonate resin a composition. The polycarbonate resin composition may simply and exactly improve appearance properties such as yellow index (Y. I), haze and the like, and thermal stability during a high-temperature process, and provide processability by reducing gas generation during molding, through provision of a relational formula of addition amounts of a hindered phenol-based compound and a phosphite-based compound which function as antioxidants when mixed with the polycarbonate resin.

A LIQUID ANTIOXIDANT COMPOSITION FOR RAW RUBBERS

The present invention provides a liquid antioxidant composition used for raw rubbers comprising 5% to 30% by weight of at least one aromatic amine-based antioxidant agent, 20% to 70% by weight of at least one hindered phenol-based antioxidant agent, 0% to 40% by weight of at least one phosphite-based antioxidant agent; and 20% to 40% by weight of at least one solvent having boiling point higher than 185° C. and freezing point lower than −10° C. under 101.325 KPa, the weight percentage of component a), b), c) or d) is based on the total weight of antioxidant composition, wherein the mixture of component a), b) and c) is liquid at 25° C. under 101.325 KPa. The present invention also provides a liquid antioxidant composition comprising 5% to 20% by weight of solid aromatic amine-based antioxidant agent, 20% to 50% by weight of solid hindered phenol-based antioxidant agent, 0% to 30% by weight of solid phosphite-based antioxidant agent and 30% to 40% by weight of solvent having boiling point higher than 185° C. and freezing point lower than −10° C. under 101.325 KPa. The weight percentage is based on the total weight of antioxidant composition. The present invention further provides an application of said liquid antioxidant composition in raw rubbers such as natural rubber and raw rubbers synthesized via solution polymerization. 1. A liquid antioxidant composition , comprising:a) 5% to 30% by weight of at least one aromatic amine-based antioxidant agent;b) 20% to 70% by weight of at least one hindered phenol-based antioxidant agent;c) 0% to 40% by weight of at least one phosphite-based antioxidant agent; andd) 20% to 40% by weight of at least one solvent having boiling point higher than 185° C. and freezing point lower than −10° C. under 101.325 KPa, wherein the weight percentage of component a), b), c) or d) is based on the total weight of antioxidant composition, wherein the mixture of component a), b) and c) is liquid at 25° C. under 101.325 KPa.2. The antioxidant ...

ELASTOMERIC COMPOSITIONS AND THEIR APPLICATIONS

The present disclosure generally relates to silicone gels cured via a condensation cure chemistry and their use in encapsulating, sealing or filling of electrical and/or electronic parts, which, compared to conventional known silicone gels, exhibit good bonding to the electrical or electronic parts even when used under high-temperature conditions. 1. A multi-part condensation curable silicone composition for making a silicone material and/or elastomer , the composition comprising:(i) at least one condensation curable silyl terminated polymer having at least one, optionally at least 2 hydroxyl functional groups per molecule; silanes having at least 2 hydrolysable groups, optionally at least 3 hydrolysable groups per molecule, and/or', 'silyl functional molecules having at least 2 silyl groups, each silyl group containing at least one hydrolysable group;, '(ii) a cross-linker selected from the group consisting of;'}(iii) a condensation catalyst selected from the group consisting of titanates and/or zirconates; and wherein polymer (i), cross-linker (ii) and condensation catalyst (iii) are not all in the same part;', 'wherein the molar ratio of total silicon-bonded hydroxyl groups to total hydrolysable groups is between 0.5:1 to 2:1 for silanes (ii) and between 0.5:1 and 10:1 for silyl functional molecules (ii); and', 'wherein the molar ratio of condensation catalyst (iii) M-OR functions to the total silicon-bonded hydroxyl groups is between 0.01:1 and 0.5:1, where M is titanium or zirconium., '(iv) at least one chemical compound that prevents or scavenges the formation of free radicals;'}2. The multi-part condensation curable silicone composition in accordance with claim 1 , wherein the composition is stored in two parts and where the parts are divided as follows:a) polymer (i) and cross-linker (ii) in one part and polymer (i) and condensation catalyst (iii) in the other part; orb) cross-linker (ii) in one part and polymer (i) and condensation catalyst (iii) in the ...

POLYMERS AND METHODS OF PRODUCING THEREOF

Provided herein are methods of producing polymers from furan and optionally diol compounds, using an organocatalyst. A polymer composition comprising a polymer prepared by the method is contemplated. Provided herein are also polymer compositions, such as poly(alkylene-2,5-furandicarboxylate). In some embodiments, polymer compositions have any one of the characteristics discussed herein, or any combinations thereof. 1. A composition comprising a polymer with a polymer backbone ,wherein the polymer backbone comprises an optionally substituted furandicarboxylate moiety or an optionally substituted tetrahydrofurandicarboxylate moiety,wherein the composition is free from metal catalysts or residues thereof;wherein the composition has an number average molecular weight of at least 10,000 Da; andwherein a solution of 5 mg/mL of the composition has an absorbance of less than 0.05 at 400 nm.2. A composition comprising a polymer with a polymer backbone ,wherein the polymer backbone comprises an optionally substituted furandicarboxylate moiety or an optionally substituted tetrahydrofurandicarboxylate moiety,wherein the composition has a metal content that does not come from metal catalysts used to produce the polymer or precursors thereof, and wherein a solution of 5 mg/mL of the composition has an absorbance of less than 0.05 at 400 nm.3. The composition of claim 1 , wherein the metal catalysts are transesterification catalysts.4. The composition of claim 1 ,wherein the composition has a total metal content of less than 0.1 wt %.5. The composition of claim 4 , wherein the total metal content includes the content of transition metals claim 4 , post-transition metals claim 4 , metalloids claim 4 , or lanthanoid metals claim 4 , or any combinations thereof.6. The composition of claim 4 , wherein the total metal content excludes the content of alkali metals claim 4 , alkaline earth metals claim 4 , and silicon.7. The composition of claim 1 , wherein the optionally substituted ...

(METH)ACRYLIC COPOLYMER, RESIN COMPOSITION, MOLDED BODY OF SAME, AND METHOD FOR PRODUCING MOLDED BODY

Provided is a resin composition which is capable of forming a molded body that has excellent surface hardness, transparency, hue and weather resistance, while exhibiting excellent wet heat resistance. A resin composition which contains a (meth)acrylic copolymer (A) and a polycarbonate-based resin (B), and wherein: the (meth)acrylic copolymer (A) contains an aromatic (meth)acrylate unit (a1), a methyl (meth)acrylate unit (a2) and a (meth)acrylate unit (a3) represented by formula (1); the mass ratio (a1)/(a2) is from 5/95 to 85/15; the content of the unit (a3) is 0.1-10 parts by mass relative to 100 parts by mass of the total of the units (a1) and (a2); and the unit (a1) is different from the unit (a3). 3. The resin composition according to claim 1 , wherein the content of the unit (a3) is 0.1 to 4 parts by mass relative to 100 parts by mass of the total of the units (a1) and (a2).5. The resin composition according to claim 1 , wherein the (meth)acrylic copolymer (A) has a mass-average molecular weight of 3 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.6. The resin composition according to claim 1 , which contains an ultraviolet absorber (C) in an amount of 0 to 0.5 parts by mass relative to 100 parts by mass of a resin component that contains the (meth)acrylic copolymer (A) and the polycarbonate-based resin (B).7. The resin composition according to claim 6 , wherein the ultraviolet absorber (C) comprises at least one of a benzotriazole-based compound claim 6 , a triazine-based compound and a benzoxazinone-based compound.8. The resin composition according to claim 1 , which contains an antioxidant (D) in an amount of 0.05 to 1.0 parts by mass relative to 100 parts by mass of the resin component that contains the (meth)acrylic copolymer (A) and the polycarbonate-based resin (B).9. The resin composition according to claim 8 , wherein the antioxidant (D) comprises a phenol-based antioxidant or a phosphite-based antioxidant.10. (canceled)11. The resin composition according ...

Stabilized Polyolefin Compositions Comprising Benzofuranones and Hindered Amine Light Stabilizers

Polyolefin compositions comprising i) a polyolefin, ii) one or more phosphorus—containing benzofuranone compounds and iii) one or more hindered amine light stabilizers are provided excellent protection against discoloration and enhanced thermal stability during melt processing as exhibited by improved retention of molecular weight and maintenance of polymer molecular architecture. 2. The composition according to claim 1 , wherein the polyolefin comprises polypropylene.3. The composition according to claim 1 , wherein the polyolefin comprises polyethylene.4. The composition according to claim 1 , wherein the hindered amine light stabilizers are selected from the group consisting of(1) 1-cyclohexyloxy-2,2,6,6-tetramethyl-4-octadecylaminopiperidine,(2) bis(2,2,6,6-tetramethylpiperidin-4-yl) sebacate,(3) bis(1-acetoxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate,(4) bis(1,2,2,6,6-pentamethylpiperidin-4-yl) sebacate,(5) bis(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate,(6) bis(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl) sebacate;(7) bis(1-acyl-2,2,6,6-tetramethylpiperidin-4-yl) sebacate,(8) bis(1,2,2,6,6-pentamethyl-4-piperidyl) n-butyl-3,5-di-tert-butyl-4-hydroxybenzylmalonate(9) 2,4-bis[(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl)butylamino]-6-(2-hydroxyethyl amino-s-triazine,(10) bis(1-cyclohexyloxy-2,2,6,6-tetramethylpiperidin-4-yl) adipate,(11) 2,4-bis[(1-cyclohexyloxy-2,2,6,6-piperidin-4-yl)butylamino]-6-chloro-s-triazine,(12) 1-(2-hydroxy-2-methylpropoxy)-4-hydroxy-2,2,6,6-tetramethylpiperidine,(13) 1-(2-hydroxy-2-methylpropoxy)-4-oxo-2,2,6,6-tetramethylpiperidine,(14) 1-(2-hydroxy-2-methylpropoxy)-4-octadecanoyloxy-2,2,6,6-tetramethylpiperidine,(15) bis(1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl) sebacate,(16) bis(1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl) adipate,(17) 2,4-bis{N-[1-(2-hydroxy-2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl]-N-butyl-amino}-6-(2-hydroxyethylamino)-s-triazine,(18) 4 ...

Process for the preparation of a composition comprising heterophasic propylene co-polymer and talc

The invention relates to a Process for the preparation of a composition comprising a heterophasic propylene copolymer and talc, wherein the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene-α-olefin copolymer consisting of at least 70% by mass of propylene and up to 30% by mass of α-olefin, based on the total mass of the propylene-based matrix, wherein the propylene-based matrix is present in an amount of 60 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 40 to 5 wt % based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein the composition has a desired melt flow index in the range of 1 to 200 dg/min as measured according to ISO1133 (2.16 kg/230° C.), wherein at least part of the talc is surface-modified and wherein the amount of talc in the composition is from about 0.5 to at most 5 wt % based on the heterophasic propylene copolymer, comprising the step of (a) melt-mixing the heterophasic propylene copolymer with the talc and a peroxide, wherein the amount of peroxide is chosen such that a composition comprising a heterophasic propylene copolymer and talc having the desired melt flow index is obtained.

CURABLE EPOXIDE COMPOSITION

An object of the present invention is to provide a composite material including an epoxide resin, having an improved strength. The object can be solved by a curable epoxide composition comprising an epoxide compound; a carbon fiber; a curing agent; and phosphite ester or phosphate ester. According to the present invention, a strength of the curable epoxide composition comprising a carbon fiber can be improved. 1. An adhesive comprising a curable epoxide composition , wherein the curable epoxide composition comprises an epoxide compound; a carbon fiber; a curing agent;and phosphite ester or phosphate ester.2. The adhesive according to claim 1 , wherein an average fiber length of the carbon fiber is 20 μm to 1 mm.3. The adhesive according to claim 1 , wherein an amount of phosphite ester or phosphate ester is 2 to 40% by weight.4. The adhesive according to claim 1 , wherein the curable epoxide composition further comprises a humed silica and/or a rheological agent.5. A molded body comprising a curable epoxide composition claim 1 , wherein the curable epoxide composition comprises an epoxide compound; a carbon fiber; a curing agent; and phosphite ester or phosphate ester.6. The molded body according to claim 5 , wherein an average fiber length of the carbon fiber is 20 μm to 1 mm.7. The molded body according to claim 5 , wherein an amount of phosphite ester or phosphate ester is 2 to 40% by weight.8. The molded body according to claim 5 , wherein the curable epoxide composition further comprises a humed silica and/or a rheological agent. The present invention relates to a curable epoxide composition. According to the present invention, a strength of the curable epoxide composition comprising a carbon fiber can be improved.Carbon fiber has excellent properties such as high strength, high elastic modulus, and high conductivity, and is used in various composite materials. As a matrix resin to be composited with the carbon fiber, there may be mentioned thermosetting resins ...

METHOD FOR PRODUCING STABILIZED POLYMER

Provided is a method of producing a stabilized polymer by which, while imparting sufficient stabilizing effect to the polymer of a monomer having an ethylenically unsaturated bond, the amount of residual solvent in the polymer can be reduced and the occurrence of foaming can be inhibited. The method of producing a stabilized polymer comprises the step of adding an antioxidant having a melting point of 70° C. or lower to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond such that 0.005 to 0.5 parts by mass of the antioxidant is incorporated with respect to 100 parts by mass of a polymer obtained by the polymerization of the monomer having an ethylenically unsaturated bond. 1. A method of producing a stabilized polymer , said method comprising the step of adding an antioxidant having a melting point of 70° C. or lower to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond such that 0.005 to 0.5 parts by mass of said antioxidant is incorporated with respect to 100 parts by mass of a polymer obtained by said polymerization of said monomer having an ethylenically unsaturated bond.2. A method of producing a stabilized polymer , said method comprising the step of adding a mixture of an antioxidant having a melting point of 70° C. or lower and a solvent to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond such that 0.005 to 0.5 parts by mass of said antioxidant and 5 parts by mass or less of said solvent are incorporated with respect to 100 parts by mass of a polymer obtained by said polymerization of said monomer having an ethylenically unsaturated bond.3. The method of producing a stabilized polymer according to claim 1 , wherein said monomer having an ethylenically unsaturated bond comprises an α-olefin.4. The method of producing a ...

ORGANIC-INORGANIC HYBRID COMPOSITION, AND ARTICLE AND OPTICAL COMPONENT INCLUDING THE SAME

Disclosed an organic-inorganic hybrid composition including a polymer (A) including a triazine ring structure represented by General Formula (1) in a polymer main chain structure; 2. The organic-inorganic hybrid composition of claim 1 , wherein a glass transition temperature (Tg) of the polymer (A) is greater than or equal to about 80° C. and less than or equal to about 200° C.4. The organic-inorganic hybrid composition of claim 1 , wherein the Rincludes a carboxyl group.6. The organic-inorganic hybrid composition of claim 1 , wherein the acidic functional group of the surface-treatment agent (C) is a carboxyl group.7. The organic-inorganic hybrid composition of claim 1 , wherein a refractive index of the inorganic particulate (B) is greater than or equal to about 1.8 and less than or equal to about 3.0.8. The organic-inorganic hybrid composition of claim 1 , wherein the inorganic particulate (B) includes at least one particle selected from zirconium oxide claim 1 , titanium oxide claim 1 , barium titanate claim 1 , strontium titanate claim 1 , and zinc oxide.9. The organic-inorganic hybrid composition of claim 1 , wherein an amount sum of the inorganic particulate (B) and the surface-treatment agent (C) is in a range of greater than or equal to about 5 wt % to less than about 80 wt % based on about 100 wt % of a sum of the polymer (A) claim 1 , the inorganic particulate (B) claim 1 , and the surface-treatment agent (C).10. The organic-inorganic hybrid composition of claim 1 , wherein a refractive index (nd) (587.6 nm) is greater than or equal to about 1.7.11. An article comprising the organic-inorganic hybrid composition of .12. An optical component comprising the organic-inorganic hybrid composition of . This application claims priority to and the benefit of Japanese Patent Application No. 2017-032990 filed in the Japanese Intellectual Property Office on Feb. 24, 2017; Japanese Patent Application No. 2017-032989 filed in the Japanese Intellectual Property Office ...

Antidegradant blend

In accordance with the present invention there is provided an antidegradant blend, comprising: a metal carboxylate; an inorganic phosphite; and a phenolic antioxidant.

Thermal stabilizer composition and synthetic resin composition comprising same

Provided are: a thermal stabilizer composition which does not generate an odor of a phosphorus-based antioxidant; and a synthetic resin composition comprising the same. The thermal stabilizer composition comprises: 100 parts by mass of a phosphorus-based antioxidant having a phosphite structure; and 0.001 to 10 parts by mass of a phenolic antioxidant having a substructure represented by the following Formula (1): (wherein, R 1 , R 2 , R 3 and R 4 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; a represents an integer of 0 to 2; and, when a is 2, plural R 3 s are optionally the same or different).

FLAME RETARDANT POLYOLEFIN-TYPE RESIN AND PREPARATION METHOD AS WELL AS OPTIC FIBER CABLE USING THE SAME

A method of preparing a flame retardant grafted polyolefin resin is provided. The method includes a step of reacting in an extrusion barrel a reactive polyolefin and a monomeric flame retardant agent to form the flame retardant grafted polyolefin resin. The reactive polyolefin has a functional group including a moiety selected from the group consisting of anhydrides, epoxies, carboxylic acids, ketones, and isocyanates. The monomeric flame retardant agent has an amine functional group. The method also includes a step of extruding the flame retardant grafted polyolefin resin. Also provided is a flame retardant grafted polyolefin resin that can be made according to the method. Further provided is a flame retardant cable that incorporates can incorporate the flame retardant grafted polyolefin resin. 1. A method of preparing a flame retardant grafted polyolefin resin , the method comprising the steps of:reacting in an extrusion barrel a reactive polyolefin and a monomeric flame retardant agent to form the flame retardant grafted polyolefin resin, wherein the reactive polyolefin has a functional group including a moiety selected from the group consisting of anhydrides, epoxies, carboxylic acids, ketones, and isocyanates and wherein the monomeric flame retardant agent has an amine functional group; andextruding the flame retardant grafted polyolefin resin.2. The method of claim 1 , wherein the reactive polyolefin is a copolymer selected from the group consisting of olefin/glycidyl methacrylate claim 1 , olefin/maleic anhydride claim 1 , olefin/acrylate/glycidyl methacrylate claim 1 , olefin/acrylate/maleic anhydride claim 1 , and combinations thereof.3. The method of claim 1 , wherein the monomeric flame retardant agent contains at least one element selected from the group consisting of phosphorus claim 1 , nitrogen claim 1 , silicon claim 1 , and sulfur.4. The method of claim 3 , wherein the at least one element comprises more than 10% by weight of the monomeric flame ...

RESIN COMPOSITION AND MOLDED ARTICLE

A resin composition contains, per 100 parts by mass of a resin ingredient composed of 10 to 60 parts by mass of a polyphenylene ether resin and 90 to 40 parts by mass of a polyamide resin: 0.01 to 1.0 parts by mass of a compatibilizer; 0.01 to 1.0 parts by mass of a phenolic antioxidant represented by formula (1); 0.01 to 1.0 parts by mass of a phosphorus-containing antioxidant; and 0.01 to 1.0 parts by mass of an amine-based antioxidant, having a mass ratio given by phenolic antioxidant represented by formula (1)/phosphorus-containing antioxidant/amine-based antioxidant of 1/0.1 to 2.0/0.1 to 2.0. 19-. (canceled)11. The resin composition of claim 10 , further comprising 0.001 to 0.5 parts by mass of hydrotalcite claim 10 , per 100 parts by mass of the resin ingredient.13. The resin composition of . wherein the resin composition contains no claim 10 , or less than 0.0001% by mass relative to the composition claim 10 , of a copper-containing compound.14. The resin composition of claim 10 , which has a nominal tensile strain retention of 30% or larger claim 10 , after being formed into a dumbbell-shaped multipurpose test specimen claim 10 , type A claim 10 , as specified in ISO 3167:93. and treated at 120° C. for 3000 hours.15. The resin composition of claim 10 , which has a Charpy impact strength retention according to ISO 179 of 50% or larger claim 10 , after being formed into a dumbbell-shaped multipurpose test specimen claim 10 , type A. as specified in ISO 3167:93 claim 10 , and treated at 120° C. for 3000 hours.16. The resin composition of claim 10 , which has a color tone change (ΔE) of 10 or smaller claim 10 , after being formed into a dumbbell-shaped multipurpose test specimen claim 10 , type A claim 10 , as specified in ISO 3167:93 claim 10 , and treated at 120° C. for 3000 hours.18. The resin composition of claim 11 , wherein the resin composition contains no claim 11 , or less than 0.0001% by mass relative to the composition claim 11 , of a copper- ...

Copolyetherester formulation with improved heat-stability

Described herein is a copolyetherester resin composition having excellent retention of mechanical properties on prolonged heat exposure. The composition comprises at least one copolyetherester; at least one phenolic antioxidant; at least one thioester antioxidant; at least one phosphite and/or phosphonite antioxidant; and at least one epoxy compound or a reaction product of the epoxy compound. Further provided are articles comprising the composition.

POLYAMIDE MOULDING COMPOSITION, MOULDED ARTICLES PRODUCED THEREFROM AND ALSO USE OF THE POLYAMIDE MOULDING COMPOSITIONS

The invention relates to a polyamide moulding composition which comprises a partially aromatic polyamide and also a mixture of at least two UV absorbers. The invention likewise relates to moulded articles which comprise corresponding polyamide moulding compositions. The polyamide moulding compositions according to the invention are used as parts of electrical or electronic components or housings or housing components, in particular housings or housing parts for portable electronic devices, household appliances, household machines, devices and apparatus for telecommunication and consumer electronics, interior and exterior parts in the automobile sector and in the field of other transport means, interior and exterior parts, preferably with a portable or mechanical function in the field of electrics, furniture, sport, mechanical engineering, the sanitary field and hygiene, medicine, energy- and drive technology, particularly preferably mobile telephones, smart phones, organisers, laptop computers, notebook computers, tablet computers, radios, cameras, clocks, calculators, devices for playing music or video, navigation devices, GPS devices, electronic picture frames, external hard disks and other electronic storage media, or for the production of mono- or multilayer films, containers or pipes. 1. A polyamide moulding composition comprising: a1) at least one aromatic dicarboxylic acid and optionally at least one aliphatic dicarboxylic acid with 6 to 44 C atoms,', 'a2) at least one aliphatic and/or cycloaliphatic diamine and', 'a3) optionally at least one lactam with 4 to 15 C atoms and/or at least one α,ω-amino acid with 4 to 15 C atoms,, 'a) at least one partially aromatic polyamide producible by polycondensation of'}b) at least one UV absorber from the group of N,N′-oxamides andc) at least one UV absorber from the group of hydroxyphenyltriazines.5. The polyamide moulding composition according to claim 1 , wherein the at least one alipihatic dicarboxylic acid is ...

POLYCARBONATE RESIN COMPOSITION

Provided is a polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group, and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a specific polyoxyalkylene structure, in which: an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B); and when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more. 1. A polycarbonate resin composition , comprising , with respect to 100 parts by mass of an aromatic polycarbonate resin (A) , 0.005 part by mass to 1 part by mass of a phosphorus-based compound (B) having an aryl group , and 0.005 part by mass to 5 parts by mass of a polyether compound (C) having a polyoxyalkylene structure ,wherein:an amount of a compound having a phenol structure produced by decomposition of the phosphorus-based compound (B) 1,500 hours after standing thereof under conditions of 40° C. and a humidity of 90% is 5 mass % or less with respect to the phosphorus-based compound (B);when a weight of the phosphorus-based compound (B) is measured with a thermogravimetric-differential thermal analysis (TG-DTA) machine under a nitrogen atmosphere, a temperature at which the weight becomes smaller than the weight before the measurement by 2% is 340° C. or more; and {'br': None, 'sup': C3', 'C1', 'C2', 'C4, 'sub': m', 'n, 'RO—(RO)(RO)—R\u2003\u2003(1)'}, 'the polyether compound (C) is represented by the following formula (1){'sup': C1', 'C2', 'C1', 'C2', 'C1', 'u', 'C3', 'C4', 'C3', ...

POLYCARBONATE RESIN COMPOSITION FOR THIN OPTICAL COMPONENT, AND METHOD FOR PRODUCING THIN OPTICAL COMPONENT

An object of the present invention is to provide a polycarbonate resin composition for a thin optical component, which polycarbonate resin composition has favorable fluidity as well as excellent strength. This object is achieved by a polycarbonate resin composition for a thin optical component, which composition contains: 100 parts by mass of an aromatic polycarbonate resin (A) having a viscosity average molecular weight (Mv) of 10,000 to 15,000; and 2 to 100 parts by mass of an aromatic polycarbonate copolymer (B) including a carbonate structural unit (i) represented by a particular Formula (1) and a carbonate structural unit (ii) represented by a particular Formula (2), wherein the ratio of the carbonate structural unit (i) to a total of 100 mol % of the carbonate structural unit (i) and the carbonate structural unit (ii) in the aromatic polycarbonate copolymer (B) is more than 10 mol % and less than 39 mol %. 2. The polycarbonate resin composition for a thin optical component according to claim 1 , further comprising 0.01 to 1 part by mass of polyalkylene glycol or a fatty acid ester thereof (C) with respect to a total of 100 parts by mass of the aromatic polycarbonate resin (A) and the aromatic polycarbonate copolymer (B).3. The polycarbonate resin composition for a thin optical component according to claim 1 , further comprising 0.005 to 0.5 part by mass of a heat stabilizer (D) with respect to a total of 100 parts by mass of the aromatic polycarbonate resin (A) and the aromatic polycarbonate copolymer (B).4. The polycarbonate resin composition for a thin optical component according to claim 3 , wherein the heat stabilizer (D) is a phosphorus-based antioxidant.5. A method for producing a thin optical component claim 1 , said method comprising the step of molding the polycarbonate resin composition according to .6. The method for producing a thin optical component according to claim 5 , wherein the thin optical component is a light guide plate having a thickness ...

POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION

A polybutylene terephthalate resin composition in which it is possible to effectively suppress discoloration without lowering the heat shock resistance. The polybutylene terephthalate resin composition is part of a molded article having a lightness L* value of 80 or higher as measured using a color difference meter, and includes a polybutylene terephthalate resin having a terminal carboxyl group content of 30 meq/kg or less, a carbodiimide compound, and a phosphite compound; and the phosphite compound content is 0.05-0.15 parts by mass per 100 parts by mass of polybutylene terephthalate resin. 1. A polybutylene terephthalate resin composition for forming a molded article for a housing of a sensor or ECU used for electric control in the automotive field , the molded article having a lightness L* value of 80 or more as measured with a color difference meter , the polybutylene terephthalate resin composition comprising:a polybutylene terephthalate resin having a terminal-carboxyl group content of 30 meq/kg or less; an aromatic carbodiimide compound; and a phosphite-based compound,the content of the phosphite-based compound being 0.05 parts by mass or more to 0.12 parts by mass or less per 100 parts by mass of the polybutylene terephthalate resin.2. The polybutylene terephthalate resin composition according to claim 1 , wherein the content of the aromatic carbodiimide compound is 0.01 parts by mass or more to 5.0 parts by mass or less per 100 parts by mass of the polybutylene terephthalate resin.3. The polybutylene terephthalate resin composition according to or claim 1 , wherein the molded article has heat shock resistance of 300 cycles or more as measured according to a heat shock resistance test claim 1 , and has an increase in a hue b* value by 5 or less before and after treatment as measured with a color difference meter before and after cold and heat treatment of 120° C.×1000 hours claim 1 ,the heat shock resistance test being defined as follows:a cycle where the ...

ONE-COMPONENT, CURABLE SILICONE COMPOSITION THAT IS STABLE IN STORAGE

The invention relates to a composition containing a) 30 to 99.799989 wt % of at least one linear or branched polyorganosiloxane, containing at least two alkenyl or alkinyl groups, as component A; b) 0.1 to 30 wt % of at least one linear or branched polyorganosiloxane containing at least 3 Si—H groups, as component B; c) 0.000001 to 1 wt % of a hydrosilylation catalyst chosen from the group comprising the platinum-1, 3-divinyl-1,1, 3, 3-tetramethyl disiloxane complex (Karstedt complex), the platinum-1,3-diallyl-1,1,3,3-tetramethyldisiloxane complex, the platinum-1,3-divinyl-1,3-dimethyl-1,3-diphenyldisiloxane complex, the platinum-1,1,3,3-tetraphenyl-disiloxane complex, and the platinum-1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane complex, as component C; d) 0.00001 to 5 wt % of tris(2,4-di-tert.-butylphenyl) phosphite, as component D; e) 0 to 69.899989 wt % of at least one possibly coated filler as component E; f) 0 to 69.899989 wt % of one or more linear or branched polyorganosiloxanes, containing two terminal Si—H groups or one terminal Si—H group and one terminal alkenyl group, as component F; g) 0 to 69.799989 wt % of one or more further linear or branched polyorganosiloxanes as component G; h) 0 to 10 wt % of one or more additives as component H; wherein the sum of the components A to H yields 100 wt %. 1. A composition comprisinga) from 30 to 99.799989% by weight of at least one linear or branched polyorganosiloxane comprising at least two alkenyl or alkynyl groups, as component A;b) from 0.1 to 30% by weight of at least one linear or branched polyorganosiloxane comprising at least 3 Si—H groups, as component B;c) from 0.000001 to 1% by weight of a hydrosilylation catalyst selected from the group consisting of a platinum-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex (Karstedt complex), a platinum-1,3-diallyl-1,1,3,3-tetramethyldisiloxane complex, a platinum-1,3-divinyl-1,3-dimethyl-1,3-diphenyldisiloxane complex, a platinum-1,1,3,3- ...

RESIN COMPOSITION AND MOLDED ARTICLE

The present invention provides a resin composition excellent in a molding stability, which can be molded into a molded article excellent in a dust generation resistance, a heat resistance, a dimensional stability, and an external appearance, and a molded article obtained by molding the same. The present invention relates to a resin composition comprising a polyarylate resin, a polycarbonate resin, silica particles having an average particle diameter of 0.5 to 10 μm and a phosphite ester compound shown by a general formula (I), wherein a mass ratio of the polyarylate resin and the polycarbonate resin is 25/75 to 90/10, a content of the silica particles is 5 to 60 parts by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin and a content of the phosphite ester compound is 0.01 to 1 part by mass with respect to 100 parts by mass of a total amount of the polyarylate resin and the polycarbonate resin: 4. A molded article comprising the resin composition of .5. The molded article of claim 4 , wherein the molded article is a camera module part.6. The molded article of claim 4 , wherein the molded article is a lens unit part.7. The molded article of claim 4 , wherein the molded article is an actuator part. The present invention relates to a resin composition and a molded article obtained by molding the same.A camera module part having an imaging element such as a CCD (Charge Coupled Device) and a CMOS (Complementary Metal Oxide Semiconductor) is used in a cellular phone, a game machine, a personal computer, a car-mounted camera, a cellular phone terminal or the like. In recent years, further miniaturization and high-performance have been promoted, and development of a small camera module part has been promoted.The camera module part is generally subjected to soldering of electric wiring. For this reason, a precision part such as a lens unit and an actuator constituting a camera module part is required to have the ...

Stabilized Polyolefin-Polymer Compositions and Related Methods

A composition having a film having linear low density polyethylene and a first antioxidant component that is: 2. The composition of claim 1 , wherein each R moiety is independently selected and is a C13 alkyl moiety.3. The composition of claim 1 , wherein each R moiety is independently selected and is a branched C13 alkyl moiety.4. The composition of claim 1 , wherein the first antioxidant component is present in the film in an amount ranging from 0.001 weight percent to about 5 weight percent.5. The composition of claim 1 , wherein the first antioxidant component is present in the film in an amount ranging from 0.01 weight percent to 2.0 weight percent.6. The composition of claim 1 , wherein the first antioxidant component is present in the film in an amount ranging from 0.025 weight percent to 1 weight percent.7. The composition of claim 1 , wherein the film has a thickness ranging from 0.05 mils to 5 mils.8. The composition of claim 1 , wherein the film has a thickness ranging from 0.05 mils to 20 mils.9. The composition of claim 1 , further comprising a second antioxidant component that is:i) octadecyl-3-(3.5-ditert butyl-4-hydroxyphenyl)-propionate;ii) pentaerythriol tetrakis (3-(3.5-ditert butyl-4-hydroxyphenyl)-propionate); oriii) a combination thereof.10. The composition of claim 9 , wherein the second antioxidant component is octadecyl-3-(3.5-ditert butyl-4-hydroxyphenyl)-propionate.11. The composition of claim 9 , wherein the second antioxidant component is pentaerythriol tetrakis (3-(3.5-ditert butyl-4-hydroxyphenyl)-propionate).12. The composition of claim 1 , further comprising an additional component that is:i) triethanolamine;ii) triisopropanolamine; oriii) a combination thereof.13. The composition of claim 12 , wherein the additional component is triethanolamine.14. The composition of claim 12 , wherein the additional component is triisopropanolamine.15. The composition of claim 1 , wherein the film is a blown film that has at least 30% fewer gels ...

Thermochromic polymer composition, electrical device, and corresponding use and processes

A thermochromic polymer composition including a base polymer material; a temperature sensitive material, which changes a color of the thermochromic polymer composition in response to a temperature change; and a stabilizer, which enhances stability performance of the thermochromic polymer composition. The thermochromic polymer composition which has a good thermochromic performance and good thermal performance and thus could provide a visible indication of the overheat condition. An electrical device is formed from the thermochromic polymer composition. A further embodiment of the process for preparing the thermochromic polymer composition and forming the electrical device.

Additive Systems Containing an Antioxidant and a Glycerol Stearate for Improved Color in Polyethylene Resins

Polymer compositions containing an ethylene polymer, 50-1500 ppm by weight of a glycerol stearate, and 250-7500 ppm by weight of an antioxidant selected from a phenolic antioxidant, a phosphite antioxidant, a thioester antioxidant, or any combination thereof, are described. These polymer compositions have improved initial color, improved color after long-term aging, or improved color after multi-pass extrusion processing. 1. A polymer composition comprising:(i) an ethylene polymer;(ii) from about 50 ppm to about 1500 ppm of a glycerol stearate; and(iii) from about 250 ppm to about 7500 ppm of an antioxidant comprising a phenolic antioxidant, a phosphite antioxidant, a thioester antioxidant, or any combination thereof.2. The composition of claim 1 , wherein:at least about 75 wt. % of the glycerol stearate is glycerol monostearate; andthe ethylene polymer comprises an ethylene homopolymer and/or an ethylene/α-olefin copolymer.3. The composition of claim 1 , wherein the polymer composition comprises:from about 100 ppm to about 850 ppm of the glycerol stearate; andfrom about 500 ppm to about 5000 ppm of the antioxidant.4. The composition of claim 1 , wherein:the polymer composition is in the form of pellets; andthe polymer composition has an initial PE color number of at least 200.5. The composition of claim 1 , wherein the antioxidant comprises:the phenolic antioxidant and a monophosphite antioxidant; orthe thioester antioxidant and a monophosphite antioxidant.6. The composition of claim 1 , wherein the ethylene polymer contains:less than 0.2 ppm of zirconium;less than 0.2 ppm of hafnium; andless than 5 ppm of magnesium.7. An article of manufacture comprising the polymer composition of .8. The composition of claim 1 , wherein:the polymer composition has an initial PE color number that is greater than that or within 20 of an otherwise equivalent polymer composition that contains 500 ppm of a diphosphite antioxidant instead of the glycerol stearate;the polymer ...

POLYESTER COMPOSITION FOR LED REFLECTIVE PLATES, LED REFLECTIVE PLATE, AND LIGHT EMITTING DEVICE EQUIPPED WITH SAID REFLECTIVE PLATE

The present invention relates to a polyester composition for an LED reflection plate containing a polyester (A), a titanium oxide (B), a phenolic antioxidant (C), and a phosphorus-based antioxidant (D), wherein the polyester (A) is a polyester having a structural unit derived from a dicarboxylic acid including 50 mol % or more of terephthalic acid and a structural unit derived from a diol including 50 mol % or more of 1,4-cyclohexanedimethanol; the phosphorus-based antioxidant (D) contains three or more groups represented by the formula (1) in a molecule thereof; the content of the titanium oxide (B) is 20 to 90 parts by mass, and the content of the phenolic antioxidant (C) is 0.1 to 0.8 parts by mass, on the basis of 100 parts by mass of the polyester (A); and the content of the phosphorus-based antioxidant (D) satisfies the following equation (I); an LED reflection plate composed of the foregoing composition; and a light-emitting device including the foregoing reflection plate. 2. The polyester composition according to claim 1 , wherein the mass ratio of the phenolic antioxidant (C) to the phosphorus-based antioxidant (D) [component (C)/component (D)] satisfies equation (I′):{'br': None, 'i': C', 'D, '0.20≤mass ratio [component ()/component ()]≤3.00\u2003\u2003(I′).'}3. The polyester composition for according to claim 1 , further comprising 5 to 50 parts by mass of a reinforcing material (E) on the basis of 100 parts by mass of the polyester (A).4. The polyester composition according to claim 3 , wherein the reinforcing material (E) is a glass fiber.5. The polyester composition according to claim 1 , wherein the polyester (A) is a polycyclohexane dimethylene terephthalate having a structural unit derived from a dicarboxylic acid comprising 75 to 100 mol % of terephthalic acid and a structural unit derived from a diol comprising 75 to 100 mol % of 1 claim 1 ,4-cyclohexanedimethanol.6. The polyester composition according to claim 1 , wherein the phosphorus-based ...

ADDITIVE MIXTURE

An additive mixture containing (A) at least one compound of the formula (I) wherein Rand Rindependently of one another are hydrogen, C-Calkyl, —O—, —OH, —CH2CN, C-Calkoxy, C-Calkoxy substituted by —OH; C-Ccycloalkoxy, C-Calkenyl, C-Calkenyloxy, C-Cphenylalkyl unsubstituted or substituted on the phenyl by 1, 2 or 3 C-Calkyl; or C-Cacyl; and Rand Rindependently of one another are C-Calkyl or a group of the formula (Ia) wherein Rhas one of the meanings of Rand R, and (B) at least one anti-scratch additive. 2: The additive mixture according to claim 1 , wherein Rand Rindependently of one another are hydrogen claim 1 , C-Calkyl claim 1 , C-Calkoxy or cyclohexyloxy;and{'sub': 3', '4', '1', '6, 'Rand Rindependently of one another are C-Calkyl.'}4: The additive mixture according to claim 1 , wherein the anti-scratch additive is an unsaturated or saturated fatty acid amide or a poly(organo)siloxane or a mixture thereof.5: A composition comprising an organic material susceptible to degradation induced by light claim 1 , heat or oxidation claim 1 , and an additive mixture according to .6: The composition according to claim 5 , wherein the organic material is a polyolefin claim 5 , an acrylonitrile/butadiene/styrene claim 5 , a polyvinyl chloride claim 5 , a polymethylmethacrylate claim 5 , a polyamide or a polyoxymethylene.7: The composition according to claim 5 , wherein the organic material is a thermoplastic polyolefin claim 5 , preferably a thermoplastic polyethylene or polypropylene.8: The composition according to claim 5 , which further comprises a phenolic antioxidant and/or a phenolic phosphite.9: The composition according to claim 8 , wherein the phenolic antioxidant is pentaerythritol tetrakis[3 claim 8 ,5-di-tert-butyl-4-hydroxyphenylpropionate] claim 8 , octadecyl-3-(3 claim 8 ,5-di-tert-butyl-4-hydroxyphenyl)proprionate claim 8 , 1 claim 8 ,3 claim 8 ,5-tris(3 claim 8 ,5-di-tert-butyl-4-hydroxybenzyl)-2 claim 8 ,4 claim 8 ,6-trimethylbenzene claim 8 , N claim 8 ,N ...

STABILIZER COMPOSITION, VINYL CHLORIDE RESIN COMPOSITION CONTAINING SAME, AND ARTICLE MOLDED THEREFROM

Provided are: a stabilizer composition capable of imparting a vinyl chloride resin with excellent thermal stability, coloration resistance, and thermal coloration resistance; a vinyl chloride resin composition containing the same and a molded article of the composition. The stabilizer composition contains, with respect to 100 parts by mass of a component (A): 5 to 700 parts by mass of a component (B) and 5 to 200 parts by mass of a component (C). The component (A) is at least one organic acid zinc salt, the component (B) is at least one selected from the group consisting of organic acid barium salts, overbased barium carbonates, organic acid calcium salts and overbased calcium carbonates, and the component (C) is at least one hindered amine-based light stabilizer. 1. A stabilizer composition comprising , with respect to 100 parts by mass of a component (A):5 to 700 parts by mass of a component (B); and5 to 200 parts by mass of a component (C),whereinthe component (A) is at least one organic acid zinc salt,the component (B) is at least one selected from the group consisting of organic acid barium salts, overbased barium carbonates, organic acid calcium salts, and overbased calcium carbonates, andthe component (C) is at east one hindered amine-based light stabilizer.2. The stabilizer composition according to claim 1 , further comprising 5 to 300 parts by mass of at least one β-diketone compound as a component (D) with respect to 100 parts by mass of the component (A).3. The stabilizer composition according to claim 1 , further comprising 5 to 700 parts by mass of at least one phosphite compound as a component (E) with respect to 100 parts by mass of the component (A).4. The stabilizer composition according to claim 1 , further comprising 5 to 200 parts by mass of at least one phenolic antioxidant as a component (F) with respect to 100 parts by mass of the component (A).5. The stabilizer composition according to claim 1 , wherein the component (C) has a base ...

STABLE POLYCARBONATE COMPOSITION

A composition includes a polycarbonate resin, a heat stabilizer, and an acid stabilizer. An article formed from the composition, when tested using a 2.5 mm color plaque, includes a level of free —OH groups that is less than a level of free —OH groups of a reference article injection molded from a substantially similar reference composition consisting essentially of the polycarbonate resin without the heat stabilizer and the acid stabilizer. Methods for forming the molded article in accordance with the above are also described. 1. A composition comprising:a polycarbonate resin;a heat stabilizer; andan acid stabilizer,wherein an article formed from the composition, when tested using a 2.5 mm injection molded color plaque, comprises a level of free —OH groups that is less than a level of free —OH groups of a reference article injection molded from a substantially similar reference composition consisting essentially of the polycarbonate resin without the heat stabilizer and the acid stabilizer.2. A composition comprising:a polycarbonate resin;a heat stabilizer; andan acid stabilizer comprising sulfonic acid,wherein an article formed from the composition, when tested using a 2.5 mm injection molded color plaque, comprises a level of free —OH groups that is less than a level of free —OH groups of a reference article injection molded from a substantially similar reference composition consisting essentially of the polycarbonate resin without the heat stabilizer and the acid stabilizer.3. The composition of claim 1 , wherein the article formed from the composition claim 1 , when tested using a 2.5 mm injection molded color plaque claim 1 , comprises less than 400 ppm by weight free —OH groups with a maximum molding temperature of at least about 320° C. and at a residence time of at least about 6 minutes.4. The composition of claim 1 , wherein the article formed from the composition claim 1 , when tested using a 2.5 mm injection molded color plaque claim 1 , comprises less ...

NEW POLYISOCYANATE COMPOSITIONS

The invention relates to a new polyisocyanate composition for producing coatings, said composition comprising at least one monophenol alkyl compound, a mixture of phosphite compounds for preventing yellowing and/or precipitation of the composition, and optionally, a catalyst. 1. A polyisocyanate composition comprising: Y is the remainder of an isocyanate or a polyisocyanate after elimination of an isocyanate function and', 'n is at least equal to 1,, 'a) at least one polyisocyanate with the general formula (I): O═C═N—Y—(N═C═O)n whereinb) at least one monophenol alkyl compound,c) a mixture of phosphite compounds comprising a maximum of 17% of trialkyl phosphite moles in relation to the total phosphite moles,d) optionally at least one cross-linking catalyst ande) optionally one or more additives.2. The composition according to wherein the general formula (I):Y is a group: aryl comprising 6 to 15 atoms of carbon, heteroaryl comprising 5 to 15 members, linear or branched alkyl comprising 2 to 15 atoms of carbon, araliphatic comprising 6 to 15 atoms of carbon, heterocycle comprising 3 to 15 members or cycloalkyl comprising 3 to 15 atoms of carbon, preferentially aryl comprising 6 to 12 atoms of carbon, heteroaryl comprising 5 to 12 members, linear or branched alkyl comprising 2 to 12 atoms of carbon, araliphatic comprising 6 to 12 atoms of carbon, heterocycle comprising 3 to 12 members or cycloalkyl comprising 3 to 12 atoms of carbon, preferentially aryl comprising 6 to 10 atoms of carbon, heteroaryl comprising 5 to 10 members, linear or branched alkyl comprising 4 to 10 atoms of carbon, araliphatic comprising 4 to 10 atoms of carbon, heterocycle comprising 4 to 10 members or cycloalkyl comprising 4 to 10 atoms of carbon; andn is at least equal to 1.3. The composition according to wherein the monophenol alkyl compound comprises at least one hindered phenol or hindered thiophenol function.4. The composition according to wherein the trialkylphosphites are compounds ...

ARTIFICIAL TURF FIBER WITH UV PROTECTION SUBSTANCES

The invention relates to a polymer-based artificial turf fiber comprising substances () adapted for protecting the fiber against UV radiation. The substances comprise a hindered amine light stabilizer—HALS and a first and a second UV-absorbent substance. The molecular weights of the first and the second UV-absorbent substances differ from each other by at least 100 g/mol. 1. A polymer-based artificial turf fiber comprising substances adapted for protecting the fiber against UV radiation , the substances comprising:a hindered amine light stabilizer—HALS; anda first UV-absorbent substance; anda second UV-absorbent substance, the molecular weights of the first and the second UV-absorbent substances differing from each other by at least 100 g/mol.2. The artificial turf fiber of claim 1 , the HALS being 1 claim 1 ,3-propanediamine claim 1 , N claim 1 ,N-1 claim 1 ,2-ethanediylbis- claim 1 , reaction products with cyclohexane and peroxidized N-butyl-2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-4-piperidinamine-2 claim 1 ,4 claim 1 ,6-trichloro-1 claim 1 ,3 claim 1 ,5-triazine reaction products.3. The artificial turf fiber of claim 1 , the HALS being an N-methyl-HALS claim 1 , the HALS being in particular 1 claim 1 ,6-Hexanediamine claim 1 , N claim 1 ,N′-bis(2 claim 1 ,2 claim 1 ,6 claim 1 ,6-tetramethyl-4-piperidinyl)- claim 1 , polymers with morpholine-2 claim 1 ,4 claim 1 ,6-trichloro-1 claim 1 ,3 claim 1 ,5-triazine.4. The artificial turf fiber of claim 1 , the first UV-absorbent substance having a molecular weight smaller than 800 g/mol claim 1 , preferably smaller than 600 g/mol.5. The artificial turf fiber of claim 1 , the first UV-absorbent substance being a sterically hindered phenolic antioxidant claim 1 , in particular octadecyl-3-(3 claim 1 ,5-di-tert.butyl-4-hydroxyphenyl)-propionate.6. The artificial turf fiber of claim 1 , the second UV-absorbent substance having a molecular weight higher than 800 g/mol claim 1 , preferably higher than 1000 g/mol.7. The ...

Additive systems containing an antioxidant and a glycerol stearate for improved color in polyethylene resins

Polymer compositions containing an ethylene polymer, 50-1500 ppm by weight of a glycerol stearate, and 250-7500 ppm by weight of an antioxidant selected from a phenolic antioxidant, a phosphite antioxidant, a thioester antioxidant, or any combination thereof, are described. These polymer compositions have improved initial color, improved color after long-term aging, or improved color after multi-pass extrusion processing.

Alternative methods to control crosslinking in high impact polystyrene

High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system.

Polyolefin materials for rotational molding applications having improved impact properties and color stability

Provided herein are polyolefin-based compositions useful for making rotomolded parts having useful properties, including those related to impact resistance and color. In one aspect, there are provided compositions comprising (a) a rotational molded polyolefin, comprising a resin, wherein the resin is polyethylene or a copolymer thereof, having a melt index (Ml) ranging from about lg/10 minutes to about lOg/10 minutes; and (b) an additive package comprising: (i) an antioxidant; (ii) a processing stabilizer; (iii) optionally a UV light stabilizer; (iv) optionally a fatty acid-based acid scavenger comprising a metal salt of a fatty acid; and (v) a dihydrotalcite-based acid scavenger present in the composition at between about 800 ppm to about 3,000 ppm. In some embodiments, the ARM Impact Percent Ductility is greater than or equal to about 60% for a molded part made from the cured composition and measured after the composition has been cured between 18-24 minutes at a temperature of 550 °F (288 °C).

Liquid phosphite blends as stabilizers

A composition is disclosed that comprises a blend of at least two different phosphites of the structure wherein R 1 , R 2 , and R 3 are independently selected alkylated aryl groups and wherein said blend is a liquid at ambient conditions. The compositions are useful for stabilizing thermoplastic resins and elastomers.

PROCESSES TO FORM ARILO PHOSPHITE COMPOSITIONS RENTED FROM COMPLEX HYDROCARBON CURRENTS

Procesos para alquilar compuestos de hidroxiarilo haciendo reaccionar un hidroxiarilo con al menos una olefina de una corriente de hidrocarburos compleja. La corriente de hidrocarburos compleja comprende con preferencia una fraccion de una corriente de alimentacion de hidrocarburos craqueada o productos de reaccion de una deshidrogenacion de una materia prima parafínica. La olefina de la corriente de hidrocarburos compleja es, con preferencia, una olefina ramificada, por ejemplo, isobutileno o isoamileno. Las composiciones alquiladas son apropiadas para formar composiciones líquidas de fosfito. Processes for renting hydroxyaryl compounds by reacting a hydroxyaryl with at least one olefin of a complex hydrocarbon stream. The complex hydrocarbon stream preferably comprises a fraction of a cracked hydrocarbon feed stream or reaction products of a dehydrogenation of a paraffinic raw material. The olefin of the complex hydrocarbon stream is preferably a branched olefin, for example, isobutylene or isoamylene. The alkylated compositions are suitable for forming liquid phosphite compositions.

Polyolefin compositions for film, fiber and molded articles

Polyolefin compositions prepared by processing a polyolefin resin and a mixture of a select hindered phenol and select liquid phosphite above the melting point of the polyolefin contain a higher amount of retained active phosphorus than when other common phosphites are used. The compositions, and films, fibers and other molded articles prepared from the compositions show improved stabilization against NOX discoloration and long term oxidation. The select liquid phosphite consists mainly of a mixture of triphenyl phosphite derivatives wherein the phenyl groups are substituted by different numbers of butyl and/or amyl substituents.

Method for producing stabilized polymer

Method of catalyst deactivation in continuous polyethylene terephthalate production

A continuous process for producing polyethylene terephthalate polyester from terephthalic acid and ethylene glycol uses a stabilizer, preferably containing phosphorous, to produce a high quality polyethylene terephthalate polyester which is relatively free of the acetaldehyde and discoloration which are associated with the post-polymerization activity of a polymerization catalyst. The stabilizer is preferably added at or after the end of the polymerization reaction prior to polymer processing to deactivate the polymerization catalyst and can increase the throughput of the polyester without adversely affecting the thermal stability of the polyethylene terephthalate polyester. Alternatively, the late addition of the stabilizer can increase the thermal stability of the polyester without adversely affecting the throughput of the polyethylene terephthalate polyester.

Materiales de poliolefina para aplicaciones de moldeado rotacional que tienen propiedades de impacto y estabilidad de color mejoradas.

En la presente se proporcionan composiciones con base en poliolefina útiles para hacer partes rotomoldeadas que tienen propiedades útiles, incluyendo las relacionadas con resistencia al impacto y color. En un aspecto, se proporcionan composiciones que comprenden (a) una poliolefina moldeada rotacional que comprende una resina, en donde la resina es polietileno o un copolímero de la misma, que tiene un índice de fusión (MI) que varía de aproximadamente 1g/10 minutos a aproximadamente 10g/10 minutos; y (b) un paquete de aditivos que comprende: (i) un antioxidante; (ii) un estabilizador de procesamiento; (iii) opcionalmente un estabilizador de luz UV; (iv) opcionalmente un depurador de ácido con base en ácido graso que comprende una sal de metal de un ácido graso; y (v) un depurador de ácido con base en dihidrotalcita presente en la composición entre aproximadamente 800 ppm y aproximadamente 3.000 ppm. En algunas modalidades, la Ductilidad Porcentual por Impacto de la ARM es mayor o igual a aproximadamente 60% para una parte moldeada a partir de la composición curada y medida después de que la composición ha sido curada entre 18-24 minutos a una temperatura de 550°F (288°C).

[UNK]