КОМПОЗИТЫ НА ОСНОВЕ ВСПЕНЕННОГО ПОЛИИЗОЦИАНУРАТА, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

ПОЛИОЛЕФИНОВАЯ ПЛЕНКА ДЛЯ ПРИМЕНЕНИЯ В УПАКОВКЕ

Polyolefin film for use in packaging

A polyolefin packaging film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

TWO-PART PHOSPHATE ESTER ELASTOMERIC EPOXY COMPOSITION AND METHOD OF USE THEREOF

The present teachings provide for a two-part system and a method of using the two-part system, the two-part system comprising: a first component including one or more epoxy resins; a second component including one or more phosphate esters; and wherein, upon mixing the first component and second component a cured elastomeric composition is formed in a temperature of about 0 °C to about 50 °C.

New material for track insulation pad with functions of isolating stray current and resisting vibration and production process thereof

ВПИТЫВАЮЩЕЕ ИЗДЕЛИЕ, СОДЕРЖАЩЕЕ ПОРИСТУЮ ПОЛИОЛЕФИНОВУЮ ПЛЕНКУ

Изобретение относится к впитывающему изделию, содержащему впитывающий элемент, расположенный между тыльным слоем и верхним слоем, где впитывающее изделие содержит пленку, образованную из термопластичной композиции, которая содержит непрерывную фазу, которая включает полиолефиновый матричный полимер и добавку нановключения, диспергированную в непрерывной фазе в форме дискретных доменов, где в композиции определяется поровая сеть, которая включает множество нанопор со средним размером поперечного сечения приблизительно 800 нанометр или меньше. В результате образования поровой сети происходит молекулярная ориентация, приводящая к деформационному упрочнению, которое увеличивает механическую прочность. 39 з.п. ф-лы, 8 пр., 4 ил.

Methods of improving lofting agent retention using bicomponent fibers

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

FOAM FOR WASHING CONCRETE PUMP

КОМПОЗИТЫ НА ОСНОВЕ ВСПЕНЕННОГО ПОЛИИЗОЦИАНУРАТА, ИХ ПОЛУЧЕНИЕ И ПРИМЕНЕНИЕ

Изобретение относится к способу получения композита на основе жесткого вспененного PIR, содержащего искусственные стекловидные волокна (MMVF), способ включает обеспечение MMVF, где по меньшей мере 50% волокон по массе имеет длину меньше 250 мкм, обеспечение полиольного компонента, смешение MMVF и полиольного компонента в таком соотношении, что количество MMVF составляет по меньшей мере 10% по массе в расчете на общую массу полиольного компонента, эмульгирование пентана со смесью полиольного компонента и MMVF, индуцирование пенообразования путем добавления дополнительного компонента, который включает изоцианат. Описаны также композит на основе вспененного PIR, вспененный композит и вспенивающаяся композиция. Технический результат – обеспечение улучшенной эффективности процесса, получение продукта, характеризующегося меньшим ухудшением числа лямбда во времени, обеспечение пен, характеризующихся меньшим размером пор и большим содержанием закрытых пор, в сравнении с эквивалентными пенами, не ...

ПЕНА ИЗ ФЕНОЛЬНОЙ СМОЛЫ И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

A two-component polyurethane or polyisocyanurate low pressure spray foam composition containing a gaseous blowing agent comprising pressurized carbon dioxide

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50 °C.

A TWO-COMPONENT POLYURETHANE OR POLYISOCYANURATE SPRAY FOAM COMPOSITION CONTAINING A HYDROHALOOLEFIN BLOWING AGENT

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more catalyst; and (b) a B-side component comprising one or more polyol; and further comprising one or more hydrohaloolefin blowing agent in either the A-side component or the B-side component, or in both; wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50 °C.

PHENOL RESIN FOAM AND METHOD FOR PRODUCING THE SAME

The purpose of the present invention is to provide a phenol resin foam having low initial thermal conductivity, and in which low thermal conductivity is maintained for a long time. This phenol resin foam contains cyclopentane and a high-boiling hydrocarbon having a boiling point of 120°C to 550°C, and has a density of 10 kg/m3 to 150 kg/m3, and the cyclopentane content in the phenol resin foam is 0.25-0.85 mol with respect to a spatial volume of 22.4×10-3m3 in the phenol resin foam.

POLYMER FOAM AND METHOD FOR PREPARING THE SAME

Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam. 1. A method for preparing polymer foam , comprising the following steps:providing a polymer body;performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; andperforming a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.2. The method of claim 1 , wherein the first determined temperature is lower than a melting point of the polymer body.3. The method claim 1 , wherein the first predetermined temperature is in a range from 100° C. to 160° C.4. The method of claim 1 , wherein the first predetermined pressure is in a range from 20 MPa to 420 MPa.5. The method of claim 1 , wherein the pressure holding time is in a range from 10 sec to 300 sec.6. The method of claim 1 , wherein the second predetermined temperature is in a range from 130° C. to 160° C.7. The method of claim 1 , wherein the second predetermined pressure is in a range from 11.7 MPa to 17.3 MPa.8. The method of claim 1 , wherein the saturation time is in a range from 10 min to 120 min.9. The method of claim 1 , wherein the polymer body is semi-crystalline thermoplastics or thermoplastic elastomers.10. The method of claim 1 , wherein the polymer body comprises at least one selected ...

ПОЛИОЛЕФИНОВЫЙ МАТЕРИАЛ С НИЗКОЙ ПЛОТНОСТЬЮ

Изобретение относится к полиолефиновому материалу, который образуют вытягиванием в твердом состоянии термопластичной композиции, содержащей непрерывную фазу, которая включает полиолефиновый матричный полимер и добавку нановключения и добавку микровключения, диспергированные в непрерывной фазе в форме дискретных доменов. Добавки нановключения и микровключения представляют собой полимер. Описаны также способ образования полиолефинового материала и впитывающее изделие, содержащее полиолефиновый материал. Технический результат – обеспечение ограничения потока текучих сред сквозь материал, высокое значение гидростатического давления, проницаемость материала для водяного пара, низкий коэффициент теплопередачи. 3 н. и 34 з.п. ф-лы, 25 ил., 6 табл., 18 пр.

ПОЛИОЛЕФИНОВЫЙ МАТЕРИАЛ С НИЗКОЙ ПЛОТНОСТЬЮ

ПОЛИОЛЕФИНОВАЯ ПЛЕНКА ДЛЯ ПРИМЕНЕНИЯ В УПАКОВКЕ

Изобретение относится к полиолефиновой упаковочной пленке. Пленка содержит термопластичную композицию, которая содержит непрерывную фазу, включающую полиолефиновый матричный полимер и добавку нановключения. Добавка нановключения диспергирована в непрерывной фазе в форме дискретных доменов. В композиции определяется поровая сеть, которая включает нанопоры со средним размером поперечного сечения до 800 нм. Композиция дополнительно содержит добавку микровключения, диспергированную в непрерывной фазе в форме дискретных доменов. Добавка микровключения представляет собой полимер. Обеспечивается снижение использования полимеров при производстве пленки при сохранении механических свойств пленки, таких как пластичность или прочность на разрыв. 37 з.п. ф-лы, 3 ил., 1 табл., 8 пр.

Acoustic graphene-containing compositions/materials and methods of formation

A low density foam material and methods for making such, comprising self-assembled graphene oxide in foam is described having high performance acoustic absorption as well as increased moisture insulation and fire-retardant properties. The graphene oxide material is inserted or distributed within openings of open cell/pore foam material resulting in a novel foam material that has increased acoustic absorption properties.

TWO-PART PHOSPHATE ESTER EPOXY COMPOSITION

A two-part system comprising a first component including one or more epoxy resins or epoxy-functionalized resins and a second component including one or more phosphate esters, wherein the first component and second component are liquid at room temp and upon mixing the first component with the second component at room temperature, a composition is formed that is solid.

METHODS OF IMPROVING LOFTING AGENT RETENTION USING BICOMPONENT FIBERS

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

Absorbent article containing a porous polyolefin film

An absorbent article containing a polyolefin film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

CROSSLINKED POLYOLEFIN FOAM

This crosslinked polyolefin foam is obtained by crosslinking and foaming a polyolefin resin composition containing: a polyolefin resin (A); and a rubber (B) with a Mooney viscosity (ML1+4, 100?) of 15 to 85. This crosslinked polyolefin foam contains 10 to 150 parts by mass of the rubber (B) per 100 parts by mass of the polyolefin resin (A); the thickness of the foam is 1.5mm or more and has a 25% compressive hardness of 60kPa or less; the degree of crosslinking of at least one of the surface layer parts from either face to a depth of 500µm is at least 5% greater than the degree of crosslinking of the intermediate layer part excluding the surface layer parts on both surfaces.

POLYMER FOAM AND METHOD FOR PREPARING THE SAME

Two-part phosphate ester elastomeric epoxy composition and method of use thereof

The present teachings provide for a two-part system and a method of using the two-part system, the two-part system comprising: a first component including one or more epoxy resins; a second component including one or more phosphate esters; and wherein, upon mixing the first component and second component a cured elastomeric composition is formed in a temperature of about 0 °C to about 50 °C.

저밀도 폴리올레핀 물질

... 폴리올레핀 매트릭스 중합체 및 나노내포(nanoinclusion) 첨가제를 포함하는 연속상을 함유하는 열가소성 조성물의 고체 상태 연신에 의해 형성되는 폴리올레핀 물질이 제공된다. 나노내포(nanoinclusion) 첨가제는 연속상 내에 이산 나노 크기 상의 도메인으로 분산된다. 연신될 때, 나노 크기 상의 도메인은 특이한 방식으로 매트릭스와 상호작용해서 나노포어 망을 생성시킬 수 있다.

난연성 폴리우레탄 발포체 및 그의 제조 방법

V-0의 최초 UL 94 수직 화염 등급을 가지며 150℃에서 1 주일 열 노화 후에 V-0의 UL 94 수직 화염 등급을 유지하는 폴리우레탄 발포체가 발포제의 존재하의 이소시아네이트 성분 및 이소시아네이트-반응성 성분의 반응 생성물로서 형성된다. 이소시아네이트 성분은 이소시아네이트-함유 화합물, 및 폴리우레탄 발포체의 총 중량을 기준으로 하여 1 내지 20 중량% 범위의 양으로 존재하는 비-반응성 인 화합물을 포함한다. 이소시아네이트-반응성 성분은 폴리에테르 폴리올, 및 폴리우레탄 발포체의 총 중량을 기준으로 하여 3 내지 30 중량% 범위의 양으로 존재하는 팽창성 흑연을 포함한다.

MELAMINE FORMALDEHYDE FOAM WITH REDUCED FORMALDEHYDE EMISSION

Method for lowering the formaldehyde emissions of melamine/formaldehyde polymer moldings, films or fibers by impregnating the melamine/formaldehyde polymer moldings, films or fibers with an aqueous solution of at least one formaldehyde scavenger.

Polyolefin material having a low density

A polyolefin material that is formed by solid state drawing of a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Cleaning foam for concrete pump

가교 폴리올레핀계 발포체

... 본 발명의 가교 폴리올레핀계 발포체는, 폴리올레핀계 수지 (A)와, 무니 점도 (ML1+4, 100℃)가 15∼85인 고무 (B)를 함유하는 폴리올레핀계 수지 조성물을 가교 발포하여 이루어지는 가교 폴리올레핀계 발포체로서, 상기 고무 (B)는, 상기 폴리올레핀계 수지 (A) 100 질량부에 대하여, 10∼150 질량부 함유되고, 상기 발포체의 두께는 1.5 ㎜ 이상임과 함께 25% 압축 경도가 60 ㎪ 이하이고, 양면으로부터 500 ㎛ 깊이까지의 표층부의 적어도 어느 일방의 가교도가, 상기 양면의 표층부를 제외한 중층부의 가교도보다 5% 이상 높다.

TWO-COMPONENT POLYURETHANE OR POLYISOCYANURATE SPRAY FOAM COMPOSITION CONTAINING A HYDROHALOOLEFIN BLOWING AGENT

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more catalyst; and (b) a B-side component comprising one or more polyol; and further comprising one or more hydrohaloolefin blowing agent in either the A-side component or the B-side component, or in both; wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50° C.

Polyolefin film for use in packaging

A polyolefin packaging film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

PO LYI SOCYAN U RATE FOAM COMPOSITES AND THEIR PRODUCTION AND USE

The invention relates to a method for the production of a rigid PIR foam composite containing man-made vitreous fibres (MMVF), the method comprising: providing MMVF, wherein at least 50% of the fibres by weight have a length of less than 250 µm; providing a polyol component; mixing the MMVF and polyol component in a ratio such that the amount of MMVF is at least 10% by weight based on total weight of polyol component; emulsifying pentane with the mixture of polyol component and MMVF; inducing foam formation by addition of a further component which comprises isocyanate.

método para formar uma espuma de poliuretano

FLAME RETARDANT POLYURETHANE FOAM AND METHOD FOR PRODUCING SAME

A polyurethane foam having an initial UL 94 vertical flame classification of V-0 and maintaining a UL 94 vertical flame classification of V-0 after one week of heat aging at 150°C is formed as the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component includes an isocyanate-containing compound and a non-reactive phosphorous compound that is present in an amount ranging from 1 to 20 weight percent based on the total weight of the polyurethane foam. The isocyanate-reactive component includes a polyether polyol and expandable graphite that is present in an amount ranging from 3 to 30 weight percent based on the total weight of the polyurethane foam.

ABSORBENT ARTICLE CONTAINING A POROUS POLYOLEFIN FILM

Polyolefin material having a low density

A polyolefin material that is formed by solid state drawing of a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Polyolefin Material having a Low Density

A polyolefin material that is formed by solid state drawing of a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Two-part phosphate ester epoxy composition

A two-part system comprising a first component including one or more epoxy resins or epoxy-functionalized resins and a second component including one or more phosphate esters, wherein the first component and second component are liquid at room temp and upon mixing the first component with the second component at room temperature, a composition is formed that is solid.

Absorbent article containing a porous polyolefin film

An absorbent article containing a polyolefin film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Polyolefin material having a low density

A polyolefin material that is formed by solid state drawing of a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

다공성 폴리올레핀 필름을 포함하는 흡수 용품

... 폴리올레핀 필름을 함유하는 흡수 용품이 제공된다. 폴리올레핀 매트릭스 중합체 및 나노내포(nanoinclusion) 첨가제를 포함하는 연속상을 함유하는 열가소성 조성물에 의해 형성되는 폴리올레핀 필름이 제공된다. 나노내포(nanoinclusion) 첨가제는 연속상 내에 이산 나노 크기 상의 도메인으로 분산된다. 연신될 때, 나노 크기 상의 도메인은 특이한 방식으로 매트릭스와 상호작용해서 나노포어 망을 생성시킬 수 있다.

FLAME RETARDANT POLYURETHANE FOAM AND METHOD FOR PRODUCING SAME

Open cell polymer foam

Methods of producing an open-cell polymer foam from a thermoplastic polymer are disclosed. Articles formed from the produced open-cell thermoplastic polymer foam are also disclosed and the use of the articles, for example, in the construction industry are described.

Polymer foam and preparation method thereof

페놀 수지 발포체 및 그 제조 방법

... 본 발명은, 초기의 열전도율이 낮음과 함께, 장기간에 걸쳐 낮은 열전도율을 유지하는 페놀 수지 발포체를 제공하는 것을 목적으로 한다. 본 발명의 페놀 발포 수지체는, 시클로펜탄, 및, 비점이 120 ℃ 이상 550 ℃ 이하인 고비점 탄화수소를 함유하고, 밀도가 10 ㎏/㎥ 이상 150 ㎏/㎥ 이하인 페놀 수지 발포체로서, 페놀 수지 발포체 내의 시클로펜탄 함유량이, 페놀 수지 발포체 내의 공간 체적 22.4 × 10-3 ㎥ 당 0.25 ∼ 0.85 ㏖ 이다.

Polymer matrix composites comprising dielectric particles and methods of making the same

A polymer matrix composite comprising a porous polymeric network; and a plurality of dielectric particles distributed within the polymeric network structure; wherein the dielectric particles are present in a range from 5 to 98 weight percent, based on the total weight of the dielectric particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a dielectric constant in a range from 1.05 to 80; and methods for making the same. Polymer matrix composites comprising dielectric particles are useful, for example, as electric field insulators.

OPTIMUM COMPOSITION OF TPU PRODUCT FOR TIRES

A molded body contains foamed pellets, containing a composition (M1) containing a thermoplastic elastomer (TPE-1), having a ratio of average surface area to average volume of the pellets (A/V) determined according to method-example 1 and 2 in a range of from 1.4 to 3.0. A process for preparing the molded body involves providing the foamed pellets comprising the composition (M1), and fusing the foamed pellets to obtain the molded body. A molded body obtained or obtainable by the process is useful in furniture, seating, cushioning, car wheels or parts of car wheels, toys, animal toys, tires or parts of a tire, saddles, balls and sports equipment, sports mats, or as floor covering or wall paneling, especially for sports surfaces, track and field surfaces, sports halls, children's playgrounds, and pathways.

Polyolefin film for use in packaging

Crosslinked polyolefin foam

This crosslinked polyolefin foam is obtained by crosslinking and foaming a polyolefin resin composition containing: a polyolefin resin (A); and a rubber (B) with a Mooney viscosity (ML1+4, 100 DEG C) of 15 to 85. This crosslinked polyolefin foam contains 10 to 150 parts by mass of the rubber (B) per 100 parts by mass of the polyolefin resin (A); the thickness of the foam is 1.5mm or more and has a 25% compressive hardness of 60kPa or less; the degree of crosslinking of at least one of the surface layer parts from either face to a depth of 500[mu]m is at least 5% greater than the degree of crosslinking of the intermediate layer part excluding the surface layer parts on both surfaces.

POLYISOCYANURATE FOAM COMPOSITES AND THEIR PRODUCTION AND USE

The invention relates to a method for the production of a rigid PIR foam composite containing man-made vitreous fibres (MMVF), the method comprising: providing MMVF, wherein at least 50% of the fibres by weight have a length of less than 250 μm; providing a polyol component; mixing the MMVF and polyol component in a ratio such that the amount of MMVF is at least 10% by weight based on total weight of polyol component; emulsifying pentane with the mixture of polyol component and MMVF; inducing foam formation by addition of a further component which comprises isocyanate.

POLYOL ETHER-BASED FOAM ADDITIVES FOR POLYURETHANE DISPERSIONS HAVING HIGH FILLER CONTENTS

The joint use of polyol ethers and ethylene oxide-rich alkyl alkoxylates as additives in filler-containing aqueous polymer dispersions for production of porous polymer coatings, preferably for production of porous polyurethane coatings, is described.

Polymer foam and method for preparing the same

Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.

TWO-COMPONENT POLYURETHANE OR POLYISOCYANURATE LOW PRESSURE SPRAY FOAM COMPOSITION CONTAINING A GASEOUS BLOWING AGENT COMPRISING PRESSURIZED CARBON DIOXIDE

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50° C.

RESIN COMPOSITION FOR INJECTION MOLDING, INJECTION MOLDED FOAM ARTICLE, AND METHOD FOR PRODUCING INJECTION MOLDED FOAM ARTICLE

polyolefinic material, absorbent article, and, method for forming a polyolefinic material

ABSORBENT ARTICLE CONTAINING A POROUS POLYOLEFIN FILM

Polyolefin material having a low density

Resin composition for injection molding, injection molded foam article, and method for producing injection molded foam article

Disclosed is a resin composition for injection molding, which contains: 70-90 parts by weight of a propylene polymer resin (I) that has an MFR of 30 g/10 min or more but less than 200 g/10 min as determined at a temperature of 230 DEG C in accordance with ASTM D-1238; 5-25 parts by weight of an ethylene-alfa-olefin copolymer (II) that has a melt tension as determined at 160 DEG C (MS160) of at least 50 mN but no more than 300 mN; and 5-25 parts by weight of an olefin polymer resin (III) that has a density of 850-930 kg/m3 (inclusive) as determined in accordance with JIS K6760 and a melt tension as determined at 160 DEG C (MS160) of less than 30 mN (provided that (I) + (II) + (III) = 100 parts by weight). This resin composition provides an injection molded article that has excellent impact strength at low temperatures and is free from the occurrence of flow marks.

Methods of improving lofting agent retention using bicomponent fibers

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

Absorbent article containing a porous polyolefin film

An absorbent article containing a polyolefin film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Two-component polyurethane or polyisocyanurate low pressure spray foam composition containing a gaseous blowing agent comprising pressurized carbon dioxide

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50° C.

Verfahren zur Beschichtung eines Substrates

Die Erfindung betrifft ein Verfahren zur Beschichtung eines Substrates mit einer mikroporösen Schicht. Es wird ein einfaches und vergleichsweise günstiges und in ökologisch unbedenkliches Verfahren vorgeschlagen, durch das sich die Dicke des Substrates incl. der Beschichtung gut einstellen lässt. Das erfindungsgemäße Verfahren ist hierbei durch wenigstens folgende Verfahrensschritte gekennzeichnet: Einmischen von wenigstens einem physikalischen und / oder chemischen Blähmittel in eine Elastomermischung in einem ersten Verfahrensschritt und Ausformen der Elastomermischung enthaltend das physikalische und / oder chemische Blähmittel mittels eines Kalanders (3) oder einer Roller-Head-Anlage in wenigstens einem weiteren Verfahrensschritt und Applizierung der kalandrierten Elastomermischung enthaltend das physikalische und / oder chemische Blähmittel auf ein zu beschichtendes Substrat (1) in wenigstens einem weiteren Verfahrensschritt und Erwärmung und Aufblähung der Beschichtung enthaltend ...

패키징에 사용하기 위한 폴리올레핀 필름

... 폴리올레핀 패키징 필름이 제공된다. 폴리올레핀 매트릭스 중합체 및 나노내포(nanoinclusion) 첨가제를 포함하는 연속상을 함유하는 열가소성 조성물에 의해 형성되는 폴리올레핀 필름이 제공된다. 나노내포(nanoinclusion) 첨가제는 연속상 내에 이산 나노 크기 상의 도메인으로 분산된다. 연신될 때, 나노 크기 상의 도메인은 특이한 방식으로 매트릭스와 상호작용해서 나노포어 망을 생성시킬 수 있다.

Polymer foam and method for preparing the same

Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.

película de poliolefina para utilização em embalagens

TWO-PART PHOSPHATE ESTER ELASTOMERIC EPOXY COMPOSITION AND METHOD OF USE THEREOF

The present teachings provide for a two-part system and a method of using the two-part system, the two-part system comprising: a first component including one or more epoxy resins; a second component including one or more phosphate esters; and wherein, upon mixing the first component and second component a cured elastomeric composition is formed in a temperature of about 0 °C to about 50 °C.

METHODS OF IMPROVING LOFTING AGENT RETENTION USING BICOMPONENT FIBERS

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

Polyolefin stretched porous film

Two-component polyurethane or polyisocyanurate spray foam composition containing a hydrohaloolefin blowing agent

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more catalyst; and (b) a B-side component comprising one or more polyol; and further comprising one or more hydrohaloolefin blowing agent in either the A-side component or the B-side component, or in both; wherein both the A-side component and the B-side component, separately, generate less than 600 ppm of fluoride ion after two weeks of aging at 50° C.

TWO-PART PHOSPHATE ESTER EPOXY COMPOSITION

Foam and production method thereof

One object of the present invention is to provide a polyolefin resin foam which does not have a difference between the front side and the back side on the top and bottom surfaces which sandwich in the thickness direction the foam which is excellent in flexibility, buffer property, and heat insulation property despite its thinness, and which can be used suitably in the fields of architecture, electricity, electronics, vehicles, and the like as a variety of heat-resistant sealing materials. The surface hardness of the foam measured by a micro rubber hardness tester is 30° or more and 70° or less, and the centerline average roughness Ra75 of a first surface portion on one side of the foam in the thickness direction and of a second surface portion on the other side of the foam in the thickness direction is 5 μm or more and 20 μm or less.

polyurethane foam, and, method for forming a polyurethane foam

ACOUSTIC GRAPHENE-CONTAINING COMPOSITIONS/MATERIALS AND METHODS OF FORMATION

A low density foam material and methods for making such, comprising self-assembled graphene oxide in foam is described having high performance acoustic absorption as well as increased moisture insulation and fire-retardant properties. The graphene oxide material is inserted or distributed within openings of open cell/pore foam material resulting in a novel foam material that has increased acoustic absorption properties.

Method for Coating a Substrate

A process for the coating a substrate with a microporous layer includes at least incorporation by mixing of at least one physical and/or chemical blowing agent into an elastomer mixture, shaping of the elastomer mixture including the physical and/or chemical blowing agent by means of a calender or of a roller-head system, and application of the calendered elastomer mixture including the physical and/or chemical blowing agent to a substrate to be coated. Further, heating and blowing of the coating including the physical and/or chemical blowing agent is then provided by means of at least one heat source. In some cases, the blowing agent is composed of microspheres, which in some embodiments, may be present in non-expanded form. In some aspects, the heating and blowing of the coating directly follows the application procedure. The heat source may be an infrared source, such as a ceramic source.

Constituent for producing shock-absorbing composite material, shock-absorbing composite material, and production method thereof

A constituent for producing a shock-absorbing composite material comprises 50-80 wt % primary matrix including vinyl acetate; ethylene/vinyl acetate copolymer; 10-40 wt % secondary matrix including polyethylene; styrene-butadiene rubber; a thermoplastic elastomer; and 1-20 wt % additive. A shock-absorbing composite material which contains the constituent and a production method thereof are further introduced. The shock-absorbing composite material is applicable to sports equipment (say, shoe pads, clubs and rackets), medical care (say, care-oriented clothes for the elderly, the sick, the injured, and the handicapped), and applications related to impact protection (say, helmets and bumpers.) The shock-absorbing composite material is applied to defense industry.

CONSTITUENT FOR PRODUCING SHOCK-ABSORBING COMPOSITE MATERIAL, SHOCK-ABSORBING COMPOSITE MATERIAL, AND PRODUCTION METHOD THEREOF

A constituent for producing a shock-absorbing composite material comprises 50-80 wt % primary matrix including vinyl acetate; ethylene/vinyl acetate copolymer; 10-40 wt % secondary matrix including polyethylene; styrene-butadiene rubber; a thermoplastic elastomer; and 1-20 wt % additive. A shock-absorbing composite material which contains the constituent and a production method thereof are further introduced. The shock-absorbing composite material is applicable to sports equipment (say, shoe pads, clubs and rackets), medical care (say, care-oriented clothes for the elderly, the sick, the injured, and the handicapped), and applications related to impact protection (say, helmets and bumpers.) The shock-absorbing composite material is applied to defense industry.

POLYMER MATRIX COMPOSITES COMPRISING DIELECTRIC PARTICLES AND METHODS OF MAKING THE SAME

A polymer matrix composite comprising a porous polymeric network; and a plurality of dielectric particles distributed within the polymeric network structure; wherein the dielectric particles are present in a range from 5 to 98 weight percent, based on the total weight of the dielectric particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a dielectric constant in a range from 1.05 to 80; and methods for making the same. Polymer matrix composites comprising dielectric particles are useful, for example, as electric field insulators.

Polyisocyanurate foam composites and their production and use

The invention relates to a method for the production of a rigid PIR foam composite containing man-made vitreous fibres (MMVF), the method comprising: providing MMVF, wherein at least 50% of the fibres by weight have a length of less than 250 μm; providing a polyol component; mixing the MMVF and polyol component in a ratio such that the amount of MMVF is at least 10% by weight based on total weight of polyol component; emulsifying pentane with the mixture of polyol component and MMVF; inducing foam formation by addition of a further component which comprises isocyanate.

RESIN COMPOSITION FOR INJECTION MOLDING, INJECTION MOLDED FOAM ARTICLE, AND METHOD FOR PRODUCING INJECTION MOLDED FOAM ARTICLE

A resin composition for injection molding comprising (I) 70-90 wt. parts of a propylene polymer resin having a MFR of at least 30 g/10 min. but smaller than 200 g/10 min. as measured at 230°C according to ASTM D-1238, (II) 5-25 wt. parts of an ethylene-α-olefin copolymer having a melt strength (MS160) of larger than 50 mN but not larger than 300 mN as measured at 160°C, and (III) 5-25 wt. parts of an olefin polymer resin having a density of at least 850 kg/m3 but not larger than 930 kg/m3 as measured according to JIS K6760, and a melt strength (MS160) of smaller than 30 mN as measured at 160°C, wherein the sum of (I), (II) and (III) is 100 wt. parts. This resin composition gives an injection molded article exhibiting enhanced impact strength at a low temperature and having no or minimized flow marks on the surface thereof.

TWO-PART PHOSPHATE ESTER ELASTOMERIC EPOXY COMPOSITION AND METHOD OF USE THEREOF

LOW-PRESSURE TWO-COMPONENT POLYURETHANE FOAM CONTAINING CO2

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50° C.

ABSORBENT ARTICLE CONTAINING A POROUS POLYOLEFIN FILM

POLYOLEFIN FILM FOR USE IN PACKAGING

POLYMER MATRIX COMPOSITES COMPRISING ENDOTHERMIC PARTICLES AND METHODS OF MAKING THE SAME

A polymer matrix composite comprising a porous polymeric network; and a plurality of endothermic particles distributed within the polymeric network structure, wherein the endothermic particles are present in a range from 15 to 99 weight percent, based on the total weight of endothermic particles and the polymer (excluding any solvent); and wherein the polymer matrix composite has an endotherm of greater than 200 J/g; and methods for making the same. The polymer matrix composites are useful, for example, as a filler, thermal energy absorbers, and passive battery safety components.

POLYOLEFIN STRETCHED POROUS FILM

The present invention is to provide a resin film having both water impermeability and moisture permeability. The polyolefin stretched porous film according to an embodiment of the present invention contains a polyolefin-based resin and a fine filler having an average primary particle size of 0.05 to 0.8 μm, and has a communicating void. Furthermore, the polyolefin stretched porous film according to an embodiment of the present invention contains a hydrophobizing agent, a water permeability measured in accordance with JIS Z 0221 is from 10000 to 85000 seconds, and a moisture permeability measured in accordance with JIS Z 0208 is from 300 to 2500 g/m2·24 h.

FLAME RETARDANT POLYURETHANE FOAM AND METHOD FOR PRODUCING SAME

TWO-PART PHOSPHATE ESTER ELASTOMERIC EPOXY COMPOSITION AND METHOD OF USE THEREOF

Microbubble injection moulding ABS composite material and preparation method thereof

Phenol Resin Foam and Method for Producing the Same

Provided is a phenol resin foam that has low initial thermal conductivity and that retains low thermal conductivity for a long period of time. The present phenol resin foam may contain a cyclopentane and a high-boiling hydrocarbon with a boiling point of from 120° C. to 550° C. and may have a density of from 10 kg/m3 to 150 kg/m3. The content of the cyclopentane in the phenol resin foam per 22.4×10−3 m3 space volume in the phenol resin foam is from 0.25 mol to 0.85 mol.

METHODS OF IMPROVING LOFTING AGENT RETENTION USING BICOMPONENT FIBERS

Methods of forming a lightweight reinforced thermoplastic core layer and articles including the core layer are described. In some examples, the methods use a combination of thermoplastic material, reinforcing fibers and bicomponent fibers to enhance retention of lofting agents in the core layer. The processes permit the use of less material while still providing sufficient lofting capacity in the final formed core layer.

DIELECTRIC MATERIAL AND MANUFACTURING METHOD THEREOF

Provided are a dielectric material and a method for manufacturing the same. The dielectric material includes: subjecting a foamed sphere obtained by a primary foaming to a second foaming in a second moulding chamber filled with CO2at a second temperature in the range of 20° C. below Tmto 5° C. below Tmand under a second pressure of 15-20 MPa for 30-3600 min to obtain the dielectric material, wherein the primary foaming comprises specific steps of: foaming a foaming material sphere with a diameter of 20-800 mm in a first moulding chamber filled with CO2at a first temperature in the range of 80° C. below Tmto 20° C. below Tmand under a first pressure of 15-20 MPa to obtain the foamed sphere. Further provided is a dielectric material manufactured by the method above.

Two-component polyurethane or polyisocyanurate low pressure spray foam composition containing a gaseous blowing agent comprising pressurized carbon dioxide

Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50° C.

Polyolefin film for use in packaging

A polyolefin packaging film is provided. The polyolefin film is formed by a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and nanoinclusion additive is provided. The nanoinclusion additive is dispersed within the continuous phase as discrete nano-scale phase domains. When drawn, the nano-scale phase domains are able to interact with the matrix in a unique manner to create a network of nanopores.

Crosslinked polyolefin foam

Flame retardant polyurethane foam and method for producing same

A polyurethane foam having an initial UL 94 vertical flame classification of V-0 and maintaining a UL 94 vertical flame classification of V-0 after one week of heat aging at 150° C. is formed as the reaction product of an isocyanate component and an isocyanate-reactive component in the presence of a blowing agent. The isocyanate component includes an isocyanate-containing compound and a non-reactive phosphorous compound that is present in an amount ranging from 1 to 20 weight percent based on the total weight of the polyurethane foam. The isocyanate-reactive component includes a polyether polyol and expandable graphite that is present in an amount ranging from 3 to 30 weight percent based on the total weight of the polyurethane foam.

3D printing porous material with expanded pore-making and preparation method thereof

espuma de limpeza para bomba de concreto

CROSSLINKED POLYOLEFIN FOAM

A crosslinked polyolefin foam that is a crosslinked foam of a polyolefin resin composition, the composition comprising a polyolefin resin (A) and a rubber (B) having a Mooney viscosity (ML1+4, 100° C.) of 15 to 85. The rubber (B) is contained in an amount of 10 to 150 parts by mass relative to 100 parts by mass of the polyolefin resin (A). The foam has a thickness of 1.5 mm or more, a 25% compressive hardness of 60 kPa or less, and a crosslinking degree of at least one of surface layers at both surfaces with a depth of 500 μm from the surface that is at least 5% higher than the crosslinking degree of the middle layer excluding the both surface layers.

Phylon Processes of Making Foam Articles Comprising Ethylene/alpha-Olefins Block Interpolymers

Methods of making a foam article comprise the steps of compressing a foam at an elevated temperature in a mold for shaping the foam; and cooling the mold to a temperature greater than room temperature, wherein the foam comprises at least one ethylene/α-olefin block interpolymer. The foam may further comprise an ethylene vinyl acetate copolymer and an additive such as a filler or a crosslinking agent. The ethylene/α-olefin block interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block.

Antimicrobial foam

A resilient foam material having an active antimicrobial bound to, incorporated within, and projecting from its surface is provided for incapacitating or destroying microbes. The antimicrobial has an atomic structure that is capable of mechanically piercing or lysing a microbe thereby incapacitating or destroying the microbe. The resilient antimicrobial foam material may be manufactured into a resilient antimicrobial foam product for drawing across a surface and mechanically incapacitating or destroying microbes on the surface. The resilient antimicrobial foam material may be manufactured into a membrane for providing a sterile barrier for a surface. The resilient antimicrobial foam material is manufactured by combining the antimicrobial with a foam polymer material, heating the foam polymer material under pressure to a temperate that does not deactivate the antimicrobial, incorporating a blowing agent, cooling the material, and extruding the material.

Crosslinked Flame Retardant Thermoplastic Elastomer Gels

Crosslinked flame retardant thermoplastic elastomer gels are provided. The crosslinked flame retardant thermoplastic elastomer gels comprise a char catalyst, a char former, a maleic anhydride-modified styrene ethylene/butylene styrene polymer, and a softener oil. Methods are provided of making crosslinked flame retardant thermoplastic elastomer gels.

Process for texturing materials

Provided are methods for making textured implantable materials made from two part RTV silicone foams and having a desired color or tone without the need for dyes or colorants.

Polyvinyl-Amine Acid Gas Adsorption-Desorption Polymers, Processes for Preparing Same, and Uses Thereof

This disclosure involves an adsorption-desorption material, e.g., crosslinked polyvinyl-amine material having an M w from about 500 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of crosslinked material, and/or linear polyvinyl-amine material having an M w from about 160 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of linear material. This disclosure also involves processes for preparing the crosslinked polyvinyl-amine materials and linear polyvinyl-amine materials, as well as selective removal of CO 2 and/or other acid gases from a gaseous stream using the polyvinyl-amine materials.

Foaming agent for plastics

A process for the production of foamed plastic parts, in which a blowing agent composition is introduced into a plastic matrix and causes pore formation in the plastic matrix by releasing at least carbon dioxide gas from the blowing agent composition, wherein the blowing agent composition contains at least one carbon dioxide carrier selected from carbonates, hydrogen carbonates and carbamates of alkali metals, alkaline earth metals, aluminum, transition metals and/or ammonium, and at least one acid carrier.

Methods and compositions for textile layers and coatings

A method for preparing a solid composite material comprising a structural polymer matrix and a thermo-responsive hydrogel involves forming a substantially homogeneous blend of a cross-linkable compound and monomer, oligomer or polymer particles in a blended aqueous liquid, inducing the cross-linkable compound to cross-link to form the thermo-responsive hydrogel and forming the structural polymer matrix from the structural polymer by a further induction means.

Resin foam and process for producing the same

Provided is a resin foam which has satisfactory strain recovery, is particularly resistant to shrinkage of its cell structure caused by the resinous restitutive force at high temperatures, and exhibits superior high-temperature strain recovery. The resin foam according to the present invention is obtained from a resin composition including an elastomer and an active-energy-ray-curable compound. The resin composition gives an unfoamed measurement sample having a glass transition temperature of 30° C. or lower and a storage elastic modulus (E′) at 20° C. of 1.0×10 7 Pa or more, each determined by a dynamic viscoelastic measurement.

Crosslinked organic porous particles

Crosslinked organic porous particles are non-swellable in propyl acetate and have a crosslinked organic solid phase and discrete pores dispersed within the crosslinked organic solid phase, which discrete pores are isolated from each other. The discrete pores have an average size greater than or equal to 0.1 μm and the crosslinked organic porous particles have a mode particle size of at least 3 μm and up to and including 100 μm. The discrete pores can contain a marker material.

Thermally foamable resin composition, thermally foamable resin sheet, foam, and production method thereof

A thermally foamable resin composition includes a base resin, foamable resin particles, and a cross-linking agent, wherein each of the foamable resin particles contains a solid resin and a thermally expandable substance contained in the solid resin.

Propylene-based copolymer, propylene-based copolymer composition, molded product thereof and foamed product thereof, and production process therefor

To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excellent expansion ratio and excellent cell uniformity in the foaming stage. The propylene-based copolymer (A) of the present invention comprises 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an α-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and is characterized by satisfying specific requirements (a) and (c).

Electret sheet

Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties.

Foamed Silicone in Wound Care

The present invention relates to a silicone foam that is produced in-situ at a wound site, e.g. in a wound cavity, through a multi-component system, based on a physical foaming process, wherein the gas required to form the foam structure is provided through the blowing agent independently of the curing reaction of the polyorganosiloxane components of the multi-component system. Therefore, in accordance with the present invention, the blowing agent is provided as a distinct entity of the multi-component system that is, in particular, not the result of any chemical reaction taking place in the multi-component system. The present invention also relates to a device for producing the foam and the corresponding negative pressure wound therapy kit. 1. A multi-component system for producing a silicone foam , said system comprising: a first component comprising a first polyorganosiloxane , said first polyorgano-siloxane comprising at least two silicon-bonded hydrogen atoms;a second component comprising a second polyorganosiloxane, said second poly-organosiloxane comprising at least two alkenyl- and/or alkynyl groups, and at least one hydrosilylation catalyst; said multi-component system further comprising at least one blowing agent.3. The multi-component system according to claim 2 , wherein R10 and R9 is a C2-C3 alkenyl or C2-C3 alkynyl claim 2 , and wherein R1 and R2 claim 2 , independently claim 2 , are selected from monovalent or functionally substituted C4-C12 hydrocarbon group.4. The multi-component system according to claim 2 , wherein R1 and R2 are independently selected from the group consisting of C5-C12 aryl claim 2 , preferably phenyl or diphenyl claim 2 , C4-C12 alkyl claim 2 , C4-C12 alkenyl claim 2 , C4-C12 alkynyl claim 2 , and C4-C12 alkoxy.5. The multi-component system according to claim 2 , wherein R3 to R8 are independently selected from the group consisting of C1-C3 alkyl claim 2 , C2-C3 alkenyl claim 2 , C2-C3 alkynyl claim 2 , and C1-C3 alkoxy claim 2 ...

Silicone foam sheet and method of producing the same

Provided is a silicone foam sheet that expresses excellent bubble removability, that has satisfactory adhesiveness with an adherend and satisfactory sealability, that maintains the expression of these effects even when its thickness is reduced, that preferably expresses a stable modulus of elasticity over a region from a low-temperature region to a high-temperature region, and that suppresses both of its compression set in the low-temperature region and its compression set in the high-temperature region to low levels. Also provided is a method of producing such silicone foam sheet. The silicone foam sheet comprises an open-cell structure having a thickness of from 10 μm to 3,000 μm, wherein wherein an open-cell ratio is 90% or more, an average cell diameter of the silicone foam sheet is from 1 μm to 50 μm, and 90% or more of all cells therein has a cell diameter of 80 μm or less.

Phenolic resin foam board, and method for manufacturing same

The present invention is a phenolic resin foam board having a thickness of 40 mm or more to 300 mm or less, when the phenolic resin foam board is sliced into n pieces (n≧5) at approximately equal intervals of 8 mm or more to 10 mm or less, a density of an n-th specimen is d n , an average density of n pieces of specimens is d ave , a lowest density among the densities of n pieces of specimens is d min , 0≦(d ave −d min )/d ave ≦0.12 is established, and when values for D i =(d i +d (i+1) )/2 are calculated, D i values are plotted and points corresponding to the D i values are connected, resulting in a density distribution curve, no straight line parallel to the horizontal axis intersects the density distribution curve at four points.

Composition For Preparing A Polymeric Foam

The present invention relates to composition for the preparation of a polymeric foam with improved thermal properties, to a polymeric foam obtainable therefrom, and to a method for preparing such a polymeric foam each for them comprising (i) an at least essentially amorphous polymer resin and (ii) a nucleating agent. The at least essentially amorphous polymer resin is preferably polystyrene. The nucleating agent is preferably selected from the group consisting of 1,3:2,4-bis-(benzylidene)-sorbitol derivates and mixtures thereof, and is preferably 1,3:2,4-bis-O-(4-methylbenzylidene)-D-sorbitol, 1,3:2,4-bis-(3,4-Dimethylbenzylidene)-sorbitol and 1,3:2,4-bis-(4-propylbenzylidene)-propyl sorbitol. 112.-. (canceled)15. (canceled) The present invention relates to compositions for the preparation of a polymeric foam with improved thermal properties, and to a foamed polymeric article obtainable therefrom, and to a method for preparing such a polymeric foam or article.In response to environmental concerns, there has been an evolution from using hydrochlorofluorocarbon (HCFC) foam blowing agents to using carbon dioxide and/or hydrocarbons and alcohols. Unfortunately, as a result of this change, the thermal conductivity of foam materials has increased due to the higher conductivity of these new blowing agents. This results in insulation foams that no longer fulfill the required product specifications unless additional steps are taken to increase the thermal resistance of these insulation foams.It is known that an infrared attenuation agent (IAA) can be used to improve an insulation foam. An effective infrared attenuation agent favors increased reflection and absorption and decreased transmission of heat radiation as much as possible. Traditionally, inorganic materials have been used as IAA to reduce the portion of heat radiation. This includes, for example, graphite, aluminum, stainless steel, cobalt, nickel, carbon black, and titanium dioxide. As an example for several ...

Nanocellular foam with solid flame retardant

Prepare nanofoam by (a) providing an aqueous solution of a flame retardant dissolved in an aqueous solvent, wherein the flame retardant is a solid at 23° C. and 101 kiloPascals pressure when in neat form; (b) providing a fluid polymer composition selected from a solution of polymer dissolved in a water-miscible solvent or a latex of polymer particles in a continuous aqueous phase; (c) mixing the aqueous solution of flame retardant with the fluid polymer composition to form a mixture; (d) removing water and, if present, solvent from the mixture to produce a polymeric composition having less than 74 weight-percent flame retardant based on total polymeric composition weight; (e) compound the polymeric composition with a matrix polymer to form a matrix polymer composition; and (f) foam the matrix polymer composition into nanofoam having a porosity of at least 60 percent.

Foamable particle and method of use

A physically crosslinked foamable particle comprises a polyolefin resin and a chemical foaming agent, the foamable particle having a volume of at least about 0.002 mm 3 .

Polymer foam and preparation method thereof

The present disclosure relates to a polymer foam and a preparation method thereof. The polymer foam is obtained by physically foaming a thermoplastic elastomer or a polyolefin material, and has an apparent density of 0.30 g/cm3 or less and a rebound degree of 50% or more as measured according to ASTM D2632.

METHOD FOR PHYSICALLY FOAMING A POLYMER MATERIAL AND FOAMED ARTICLE

The present disclosure relates to a method for physically foaming a polymer material and a foamed article. The method for physically foaming a polymer material comprises: (1) making a thermoplastic elastomer or a polyolefin material into a blank with an injector, an extruder, or a molding press; (2) subjecting the polyolefin blank to a crosslinking reaction to obtain a crosslinked polyolefin blank; (3) subjecting the thermoplastic elastomer blank or the crosslinked polyolefin blank to a high pressure impregnation with a supercritical fluid in an autoclave, then releasing the pressure to a normal pressure to obtain a supercritical fluid-impregnated blank; and (4) placing the supercritical fluid-impregnated blank into an end-product mold to perform an 1:1 in-mold foaming to obtain a finished foam article. 1. A method for physically foaming a polymer material , comprising:(1) making a thermoplastic elastomer or a polyolefin material into a thermoplastic elastomer blank or a polyolefin blank with an injector, an extruder, or a molding press;(2) subjecting the polyolefin blank to a crosslinking reaction to obtain a crosslinked polyolefin blank;(3) subjecting the thermoplastic elastomer blank or the crosslinked polyolefin blank to a high pressure impregnation with a supercritical fluid at a pressure of 10-50 MPa in an autoclave, then releasing the pressure to a normal pressure to obtain a supercritical fluid-impregnated blank; and(4) placing the supercritical fluid-impregnated blank into an end-product mold to perform an 1:1 in-mold foaming to obtain a finished foam article.2. The method according to claim 1 , wherein claim 1 , the thermoplastic elastomer comprises at least one of a thermoplastic polyurethane (TPU) claim 1 , a thermoplastic polyester elastomer (TPEE) claim 1 , and a polyether block amide elastomer (Pebax) claim 1 , or a mixture thereof.3. The method according to claim 1 , wherein claim 1 , the polyolefin material comprises at least one of poly(ethylene-co ...

Compositions and methods comprising vinylidene fluoride

This invention relates to compositions and methods which make advantageous use of vinylidene fluoride (CH2═CF2), and in particular embodiments, to heat transfer fluids and heat transfer methods, blowing agents, and thermoplastic foams which utilize vinylidene fluoride (CH2═CF2). Compositions of the present invention include from about 0.1 to about 60 percent, on a weight basis, of a co-agent and from about 99.0 to about 40 percent, on a weight basis, of vinylidene fluoride (CH2═CF2).

FILM WITH VOID SPACES BONDED THROUGH CATALYSIS AND METHOD OF PRODUCING THE SAME

A film is provided with void spaces having a porous structure with less cracks and a high proportion of void space as well as having strength. The film with void spaces includes one kind or two or more kinds of structural units that form a structure with minute void spaces, wherein the structural units are chemically bonded through catalysis. For example, the abrasion resistance measured with BEMCOT® is in the range from 60% to 100%, and the folding endurance measured by the MIT test is 100 times or more. The film with void spaces can be produced by forming the precursor of the silicone porous body using sol containing pulverized products of a gelled silicon compound and then chemically bonding the pulverized products contained in the precursor of the silicone porous body. The chemical bond among the pulverized products is preferably a chemical crosslinking bond among the pulverized products. 1. A film with void spaces comprising:one kind or two or more kinds of structural units that form a structure with minute void spaces, whereinthe structural units are chemically bonded through catalysis.2. The film according to claim 1 , whereinthe chemical bond among the structural units includes a direct bond.3. The film according to claim 1 , whereinthe chemical bond among the structural units includes an indirect bond.4. The film according to claim 1 , whereinthe bond among the structural units includes a hydrogen bond or a covalent bond.5. The film according to claim 1 , whereinthe structural units are in the shape of at least one of a particle, fiber, and a plate.6. The film according to claim 5 , whereineach of the structural unit in the shape of a particle and the structural unit in the shape of a plate is made of an inorganic matter.7. The film according to claim 5 , whereina configuration element of the structural unit in the shape of a particle includes at least one element selected from the group consisting of Si, Mg, Al, Ti, Zn, and Zr.8. The film according to ...

RHEOLOGY MODIFICATION BY POROUS GEL PARTICLES

Modification of the rheology of a liquid medium, aqueous or nonaqueous, with polymers in the form of specific particles obtained by grinding (micronizing) a porous macrogel, itself prepared by a process comprising a radical polymerization step which comprises reacting in the presence of pore formers monomers containing monomers bearing at least two ethylenic unsaturations, typically in combination with monomers bearing a single ethylenic unsaturation; a polymerization initiator; and optionally a polymerization control agent. These polymer particles keep other particles in suspension within the liquid medium, and also the stabilized suspensions are obtained. 1. A method comprising adding crosslinked polymer particles (p) to a liquid medium , the crosslinked polymer particles (p) obtained by grinding a macrogel prepared by a process comprising a radical polymerization step (E) which comprises reacting , within a reaction medium M comprising pore formers: at least one radical polymerization initiator;', 'optionally at least one radical polymerization control agent, 'ethylenically unsaturated monomers, containing monomers m1 bearing at least two ethylenic unsaturations;'}to modify the rheology of said liquid medium.2. The method as claimed in claim 1 , wherein the monomers employed in step (E) comprise not only monomers m1 but also monomers m2 bearing a single ethylenic unsaturation claim 1 , preferably with a mass ratio m1/m2 of between 0.01 and 30.3. The method as claimed in claim 1 , wherein the liquid medium is an aqueous liquid medium.4. The method as claimed in claim 1 , wherein particles are kept in suspension within the liquid medium.5. The method as claimed in claim 1 , wherein the pore formers employed in step (E) are gas bubbles.6. The method as claimed in claim 1 , wherein step (E) first comprises a step (E1) in which only a part of the ethylenically unsaturated monomers are polymerized in the absence of pore formers claim 1 , then a step (E2) in which the ...

FOAMING AGENTS AND COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS, AND METHODS OF FOAMING

Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1336) in a variety of applications, including as blowing agents for integral skin foams are disclosed. 1. A method of forming an integral skin thermoset foam comprising: {'br': None, 'XCFzR3-z \u2003\u2003(I)'}, 'providing a polymer foam formulation comprising a blowing agent composition comprising from about 5% by weight to about 95% by weight of a C4 fluoroalkene according to Formula Iwhere X is a C3 unsaturated, substituted radical having at least one fluorine substituent and z is 3; andfoaming said polymer foam formulation to form an integral skin foam.2. The method of wherein said foam comprises a polyurethane foam.3. The method of wherein said blowing agent further comprises a hydrofluorocarbon selected from the group consisting of difluoromethane (HFC32); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,1-pentafluoroethane (HFC125); 1 claim 1 ,1 claim 1 ,1-trifluoroethane (HFC143a); 1 claim 1 ,1 claim 1 ,2 claim 1 ,2tetrafluorothane (HFC134); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane (HFC134a); 1 claim 1 ,1-difluoroethane (HFC152a); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3 claim 1 ,3 claim 1 ,3-heptafluoropropane (HFC227ea); 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3pentatfluoropropane (HFC245fa); 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentafluorobutane (HFC365mfc).4. The method of wherein said hydrofluorocarbon comprises 1 claim 3 ,1 claim 3 ,1 claim 3 ,2 claim 3 ,2 claim 3 ,3 claim 3 ,4 claim 3 ,5 claim 3 ,5 claim 3 ,5-decafluoropentane (HFC4310mee).5. The method of wherein said blowing agent further comprises an additive selected from the group consisting of hydrocarbons claim 1 , C1 to C5 alcohols claim 1 , C1 to C4 aldehydes claim 1 , C1 to C4 ketones claim 1 , C1 to C4 ethers claim 1 , carbon dioxide claim 1 , and C1 to C4 diethers.6. The method of wherein said hydrocarbon is selected from the group consisting of pentane isomers and butane isomers.7. A ...

MASTERBATCH AND APPLICATIONS THEREOF

A masterbatch containing an organic base component and heat-expandable microspheres including a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein. The organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 mm) higher than 50 and not higher than 2200. A ratio of the heat-expandable microspheres ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component. Also disclosed is a molding composition, a foamed molded article manufactured by molding the molding composition and a weathers tripping. 1. A masterbatch comprising:heat-expandable microspheres comprising a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein; andan organic base component;wherein the organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 min) higher than 50 and not higher than 2200, andthe ratio of the heat-expandable microspheres in the masterbatch ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component.2. The masterbatch as claimed in claim 1 , wherein the organic base component is an ethylenic polymer claim 1 , and a ratio of ethylene monomer to all monomers constituting the ethylenic polymer is at least 60 wt %.3. The masterbatch as claimed in claim 1 , wherein the organic base component has a melting point ranging from 45 to 180° C.4. The masterbatch as claimed in claim 1 , wherein the organic base component has a tensile fracture stress not higher than 30 MPa.5. The masterbatch as claimed in claim 1 , wherein the thermoplastic resin is produced by polymerizing a polymerizable component containing a nitrile monomer.6. The masterbatch as claimed in claim 5 , wherein the polymerizable component ...

Shape Memory Products and Method For Making Them

A method for producing a heat-shrinkable product is provided. First, a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein is melt mixed. The foaming agent has a peak activation temperature which is higher than a temperature of the melt mixing. Next, the polymer composition is injection molded into a molded product. This carried out at the peak activation temperature to activate the foaming agent. Then, the molded product is crosslinked within the mold. 1. A method for producing a shape memory product comprising the steps of:(i) melt mixing a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein, the micro-encapsulated foaming agent having a peak activation temperature which is higher than a temperature of the melt mixing,(ii) injection molding the polymer composition into a molded product, the injection molding carried out at the peak activation temperature to activate the micro-encapsulated foaming agent; and(iii) crosslinking the molded product within a mold.2. The method according to claim 1 , wherein the micro-encapsulated foaming agent is a blowing agent.3. The method according to claim 2 , wherein the polymer composition includes a polyolefin.4. The method according to claim 3 , wherein the polymer composition further includes polyethylene.5. The method according to claim 4 , wherein the polymer composition further includes ethylene-vinyl acetate copolymer (EVA).6. The method according to claim 1 , wherein the polymer composition includes 40 to 60% by weight of polyethylene and 10 to 20% by weight of EVA.7. The method according to claim 1 , wherein injection molding is carried out at a temperature in a range of 120 to 160° C.8. The method according to claim 7 , wherein the mold is heated to a temperature in a range of 170 to 210° C.9. The method according to claim 8 , wherein the injection molding is carried ...

FOAM AND METHOD FOR PRODUCING SAME

[Problem] An object of the present invention is to provide a foam including a thermoplastic resin and rubber as a main component, in which a micronized product of a cellulose fiber is uniformly dispersed, and uniformity and mechanical properties are excellent. [Solution] A foam includes a modified cellulose fiber (A) covalently bonded with a diene-based polymer, a thermoplastic resin and/or rubber (B), and a diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, in which the fiber (A) is micronized, the fiber (A) has a content of 0.05 to 20% by mass, and the thermoplastic resin and/or rubber (B) has a glass transition point of −130° C. to 120° C. 1. A foam comprising:a modified cellulose fiber (A) covalently bonded with a diene-based polymer;a thermoplastic resin and/or rubber (B); anda diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, whereinthe fiber (A) is micronized,the fiber (A) has a content of 0.05 to 20% by mass, andthe thermoplastic resin and/or rubber (B) has a glass transition point of −130° C. to 120° C.2. The foam according to claim 1 , wherein the thermoplastic resin and/or rubber (B) is crosslinked.3. The foam according to claim 1 ,wherein a mass ratio is (A)/(B)/(C)=1/1.5 to 2000/0.001 to 0.5.4. A production method of a foam claim 1 , comprising the following steps:(step 1)a step of adjusting a concentration by diluting a masterbatch containing:a micronized modified cellulose fiber (A) covalently bonded with a diene-based polymer,a thermoplastic resin and/or rubber (B) having a glass transition point of −130° C. to 120° C., anda diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber,with the (B);(step 2)a step of adding a foaming agent and, as necessary, a crosslinking agent after (step 1); and(step 3)a step of performing foam molding or crosslinking foam molding after (step 2).5. The production method ...

METHOD AND FORMULATION FOR AN ISOCYANATE-FREE FOAM USING ISOCYANATE-FREE POLYURETHANE CHEMISTRY

The presently disclosed subject matter is directed to a method of making a foam. The disclosed formulation has a first part with at least one multifunctional acrylate. The disclosed formulations have a second part with at least one non-isocyanate polyurethane oligomer derived from a reaction of at least one multifunctional cyclocarbonate and at least one first multifunctional amine, and a second multifunctional amine. The formulation may also have a blowing agent and at least one surfactant. 1. A method of making a foam , the method comprising: a first part comprising 25% to 70% of at least one multifunctional acrylate;', 30% to 50% of at least one non-isocyanate polyurethane oligomer derived from a reaction of at least one multifunctional cyclocarbonate and at least one first multifunctional amine, and', '15% to 40% of a second multifunctional amine;, 'a second part comprising, '5% to 35% of a blowing agent, wherein the blowing agent is included in at least one of the first part and the second part, and', '0.1% to 7% at least one surfactant, wherein the at least one surfactant is included in at least one of the first part and the second part;, 'providing a formulation comprisingcombining the first part and the second part of the formulation to create a froth; andcuring the froth to produce a foam;wherein the first part is separated from the second part.2. The method of claim 1 , wherein the foam has a density of less than or equal to 2 pounds per cubic foot.3. The method of claim 1 , wherein the foam has a compressive strength of 3 pounds to 10 pounds per square inch at 10% strain.4. The method of claim 1 , wherein the first part further comprises an epoxy compound claim 1 , at least one multifunctional cyclocarbonate claim 1 , and an anhydride compound.5. The method of claim 1 , wherein at least one of the first part and the second part is heated to a temperature of 25 to 60 degrees Celsius.6. The method of claim 1 , wherein the reaction of the at least one ...

Perfected self-modelling padding, garment or support comprising said self-modelling padding, and manufacturing method thereof

A self-modelling padding for garments or supports which has an elastomeric matrix having a cross-linked, three-dimensional open cell structure, and a self-modelling paste embedded in the elastomeric matrix is provided. The elastomeric matrix is configured to have a shape memory. The self-modelling paste has a plastic behavior.

ROOM TEMPERATURE FOR CROSSLINKED FOAM

Foams for filling cavities and crevasses and for forming foamed products are provided. The latex foam may include an A-side containing a functionalized latex and a B-side that contains a crosslinking agent and optionally a non-functionalized latex. The A- and/or B-side contain a blowing agent package or components forming the blowing agent package. The blowing agent package may be the combination of two or more chemicals that when mixed together form a gas or a chemical compound that, when activated by heat or light, forms a gas. In an alternate embodiment, the latex foam includes a functionalized latex, an acid, and an encapsulated crosslinking agent and base. Alternatively, the spray latex foam may include a functionalized latex, a crosslinking agent, and an encapsulated dry acid and dry base. The encapsulating agent may be a protective, non-reactive shell that can be broken or melted at the time of application. 2. The method of claim 1 , the method further comprising positioning an interior member on said elastomeric foam.3. The method of claim 1 , wherein said crosslinking agent is a polyfunctional aziridine.4. The method of claim 3 , wherein said blowing agent is formed of an acid and a base claim 3 , wherein said first component includes said base when said second component includes said acid; and wherein said first component includes said acid when said second component includes said base claim 3 , said method further comprising the step of reacting said acid and said base to form a gas to initiate said foaming reaction.5. The method of claim 3 , wherein said acid is polyacrylic acid claim 3 , said base is sodium bicarbonate claim 3 , and said foam has a structure; and wherein said polyacrylic acid reacts with said sodium bicarbonate to form a gas as said polyacrylic acid further reacts with said crosslinking agent to become integrated with said foam structure.6. The method of claim 3 , wherein said base is sodium bicarbonate having a mean particle size from ...

PROCESS AND COMPOSITION FOR THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAM

Disclosed are a process of producing a polyurethane foam product, a polyurethane foam product pre-mix, polyurethane foam product formulation, and a polyurethane foam product. The process of producing the polyurethane foam product includes contacting a halogen containing composition with a polyurethane foam product pre-mix. The polyurethane foam product pre-mix includes the halogen containing composition. The polyurethane foam product formulation includes a polyol component, an isocyanate component, and a halogen containing compound component. The polyurethane foam product is formed by the pre-mix having the halogen containing composition. 1. A polyurethane foam additive composition comprising at least one halogen containing compound.2. The polyurethane foam additive composition of claim 1 , wherein the at least one halogen containing compound is an acyl compound with a general formula [Cl—(CH)—CO]-A selected from the group consisting of:{'sub': 1', '36', '2', '1', '18, 'i) esters wherein A is a RO— group and where R=C-Calkyl group linear or branched, saturated or unsaturated, substituted or unsubstituted, and where the substituents are OH, a halogen, NH═, an ether moiety —OR′, an ester moiety —COOR″, or a urea moiety —NHCONH, and wherein R′ and R″ are C-Calkyl groups and x=1 and y=1;'}{'sub': 2', '2', 'n', '2', '2', 'n', '2', '3', 'n', '2', '3', 'n', '2', '2', 'n', '2', '3', 'm', '2', '2', 'n', '2', '3', 'm', '2', '3', 'n', '2', '2', 'm, 'ii) esters and ester-alcohols where A is a chemical group of general formula —O—[CH—CH—O]—H and x=1 and y=1 and n=1 to 700, or —O—[CH—CH—O]— and x=2 and y=1 and n=1 to 700, or —O—[CH—CH(CH)—O]—H and x=1 and y=1 and n=1 to 700, or —O—[CH—CH(CH)—O]— and x=2 and y=1 and n=1 to 700, or —O—[CH—CH—O]—[CH—CH(CH)—O]—H and x=1 and y=1 and n and m are independently from 1 to 700, or —O—[CH—CH—O]—[CH—CH(CH)—O]— and x=2 and y=1 and n and m are independently from 1 to 700, or —O—[CH—CH(CH)—O]—O—[CH—CH—O]—H and x=1 and y=1 and n and m are ...

PUMPABLE, THERMALLY CURABLE AND EXPANDABLE PREPARATIONS

A thermally expandable preparation pumpable at application temperatures in the range of 50 to 120° C., is provided containing: at least one polymer selected from binary copolymers containing at least one monomer unit selected from vinyl acetate, (meth)acrylic acids, styrene and derivatives thereof, and terpolymers based on at least one first monomer selected from the monounsaturated or polyunsaturated hydrocarbons, and at least one second monomer selected from (meth)acrylic acids and derivatives thereof, and at least one third monomer selected from epoxy-functionalized (meth)acrylates, as well as combinations of the first two; at least one liquid polymer selected from liquid hydrocarbon resins, liquid polyolefins and liquid polymers based on one or more diene monomers; at least one peroxide; at least one thermally activatable blowing agent; and at least one adhesion promoter; as well as methods to stiffen/reinforce or seal structural components by application of the preparation. 1. A thermally expandable preparation which can be pumped at application temperatures in a range of 50° C. to 120° C. , and contains , in each case based on a total weight of the preparation: (a1) binary copolymers containing at least one monomer unit selected from vinyl acetate, (meth)acrylic acids, styrene and derivatives thereof, and', '(a2) terpolymers based on at least one first monomer selected from monounsaturated or polyunsaturated hydrocarbons, and at least one second monomer selected from (meth)acrylic acids and derivatives thereof, and at least one third monomer selected from epoxy-functionalized meth(acrylates); and combinations of (a1) and (a2);, '(a) 3 to 40 wt. % of at least one polymer, optionally comprising a peroxidically crosslinkable polymer, the at least one polymer being selected from (b1) liquid hydrocarbon resins;', '(b2) liquid polyolefins; and', '(b3) liquid polymers based on one or more diene monomers;, '(b) 1 to 40 wt. % of at least one liquid polymer selected ...

Polypropylenes Having Balanced Strain Hardening, Melt Strength, and Shear Thinning

A composition comprising the reaction product of a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (Mw/Mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cN determined using an extensional rheometer at 190° C.; and within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the polypropylene and organic peroxide. Such hyperbranched polypropylenes are useful in films, foamed articles, and thermoformed articles. 1. A composition comprising the reaction product of:{'sub': 'vis', 'a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (Mw/Mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cN determined using an extensional rheometer at 190° C.; and'}within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the polypropylene and organic peroxide.2. (canceled)3. (canceled)4. The composition of wherein the polypropylene has an MWD (Mw/Mn) within the range from 6 to 18.5. The composition of claim 1 , wherein the polypropylene has a melt strength within the range from 10 cN to 40 cN.6. The composition of claim 1 , wherein the polypropylene has a Peak Extensional Viscosity (non-annealed) within a range from 10 kPa·s to 60 kPa·s at a strain rate of 0.01/sec (190° C.).7. The composition of claim 1 , wherein the polypropylene has a heat distortion temperature of greater than or equal to 100° C. claim 1 , determined according to ASTM D648 using a load of 0.45 MPa (66 psi).8. The composition of claim 1 , wherein the polypropylene comprises at least 90 mol % propylene.9. The composition of claim 1 , wherein the polypropylene has a melt flow rate (MFR) within the range from 0.1 to 100 g/10 min claim 1 , determined according to ASTM D1238 Condition L (230° C./2.16 kg).10. The composition of claim 1 , wherein the polypropylene has an Mz/Mw value of less ...

Method for Preparing Porous Scaffold for Tissue Engineering, Cell Culture and Cell Delivery

The present invention relates to a method for preparing a porous scaffold for tissue engineering. It is another object of the present invention to provide a porous scaffold obtainable by the method as above described, and its use for tissue engineering, cell culture and cell delivery. The method of the invention comprises the steps consisting of: a) preparing an alkaline aqueous solution comprising an amount of at least one polysaccharide, an amount of a cross-linking agent and an amount of a porogen agent b) transforming the solution into a hydrogel by placing said solution at a temperature from about 4° C. to about 80° C. for a sufficient time to allow the cross-linking of said amount of polysaccharide and c) submerging said hydrogel into an aqueous solution d) washing the porous scaffold obtained at step c).

Process for producing isocyanate-based foam construction boards

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate containing compound; (ii) providing a B-side reactant stream that includes a polyol and a physical blowing agent, where the physical blowing agent includes pentane, butane, and optionally a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 17 MPa−0.5; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

POROUS CROSSLINKED HYDROPHILIC POLYMERIC MATERIALS PREPARED FROM HIGH INTERNAL PHASE EMULSIONS CONTAINING HYDROPHILIC POLYMERS

The present disclosure relates to a process for preparing porous crosslinked hydrophilic polymeric materials. Such materials can be prepared from oil-in-water high internal phase emulsions (HIPEs) containing hydrophilic polymers. The oil-in-water high internal phase emulsion (HIPE) comprises two phases: an external continuous aqueous phase containing at least one hydrophilic polymer; and an internal oil phase. The hydrophilic polymer is crosslinked to form a three-dimensionally crosslinked polymer matrix. The internal oil phase is subsequently removed to obtain a porous crosslinked hydrophilic polymeric material. The present invention also relates to porous crosslinked hydrophilic polymeric materials prepared by such a process. 1. A process for the preparation of a porous crosslinked hydrophilic polymeric material comprising:forming an oil-in-water high internal phase emulsion (HIPE) from an oil phase and an aqueous phase, wherein the aqueous phase comprises at least one hydrophilic polymer and at least one crosslinker capable of crosslinking with the at least one hydrophilic polymer;causing the crosslinking of the at least one hydrophilic polymer to occur for creating a first crosslinked polymer network; andremoving the oil phase from the first crosslinked polymer network to obtain a porous crosslinked hydrophilic polymeric material.2. The process of claim 1 , wherein a volume ratio between the oil phase and aqueous phase is between the range of 70:30 to 99:1 claim 1 , an amount of the at least one hydrophilic polymer is between about 33% to about 100% by weight of a total amount of the network-forming polymers claim 1 , and an amount of the at least one crosslinker is between about 0.1% to 50% by weight of the amount of the at least one hydrophilic polymer.3. The process of or claim 1 , further comprising forming a second crosslinked polymer network within the aqueous phase claim 1 , by copolymerizing at least one water soluble monofunctional ethylenically ...

POLYOLEFIN ELASTOMER COMPOSITIONS AND METHODS OF MAKING THE SAME

An elastomeric article is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm. The elastomeric article can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst. 1. A silane-crosslinked polyolefin elastomer blend comprising:{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm;'}a second polyolefin having a percent crystallinity less than 40%;a silane crosslinker,{'sup': '3', 'wherein the silane-crosslinked polyolefin elastomer blend exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.) and wherein the silane-crosslinked polyolefin elastomer blend has a density less than 0.90 g/cm.'}2. The silane-crosslinked polyolefin elastomer blend of further comprising a microencapsulated foaming agent.3. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.70 g/cm.4. The silane-crosslinked polyolefin elastomer blend of further comprising a foaming agent.5. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.60 g/cm.6. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the compression set is from about 15.0% to about 35.0% claim 1 , as measured according to ASTM D 395 (22 hrs @ 70° C.).7. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the first polyolefin comprises an ethylene-octene copolymer from about 60 wt % to about 97 wt %.8. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the second polyolefin comprises a polypropylene homopolymer from about 10 wt % to about 35 wt % and/or ...

PROCESS FOR THE PRODUCTION OF EXPANDABLE VINYL AROMATIC POLYMER GRANULATE HAVING DECREASED THERMAL CONDUCTIVITY

The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers. 1. Extrusion process for the production of expandable vinyl aromatic polymer granulate comprising the steps:i) feeding a first polymer component comprising vinyl aromatic polymer into a first mixer;ii) feeding a first additive component a) into the first mixer, to produce a first mixture from the first polymer component and the first additive component;iii)feeding a second polymer component b) comprising vinyl aromatic polymer into a second mixer;iv) feeding a second additive component b) into the second mixer, to produce a second mixture from the second polymer component and the second additive component, wherein the processing conditions in the second mixer are more severe than the processing conditions in the first mixer, by providing higher shear force;v) combining the first and second mixtures, to produce a third mixture;vi) injecting blowing agent c) into the third mixture, to produce a fourth mixture;vii)mixing the fourth mixture; and viii) pelletizing the fourth mixture, to obtain the granulate,wherein the process comprises an extrusion.2. The process of claim 1 , wherein the combining v) is a feeding of the second mixture into the first mixer claim 1 , to produce the third mixture claim 1 ,preferably wherein the combining is in the first mixer, to produce the third mixture.3. The process of or claim 1 , wherein the first mixer is an extruder or a static mixer claim 1 , preferably a co-rotating twin screw extruder.4. The process of any one of the preceding claims claim 1 , wherein the temperature in the first mixer is in the range of 100 to 250° C. claim 1 , more preferably 150 to 230° C.5. The process of any one of the preceding claims claim 1 , wherein the second mixer is an extruder or a static mixer claim 1 , preferably a co ...

POLYESTER POLYOL COMPOSITIONS CONTAINING HFO-1336MZZM (Z)

Blends, polyol premix compositions, methods of forming such compositions, foamable compositions using the premix compositions, methods of preparing foams containing the premix compositions, and foams made using the premix compositions are described. The polyol premix composition includes a polyester polyol; halogenated olefin blowing agent; and a distribution-enhancing component. In the polyol premix composition, the blowing agent, the polyester polyol, and the distribution-enhancing component form a substantially uniform composition. 1. A polyol premix composition comprising:a halogenated olefin blowing agent;a polyester polyol, anda distribution enhancing component comprising at least one organic compound having from 1 to 40 carbon atoms, said at least one organic compound being present in the premix in amount effective to enhance the ability of said halogenated blowing agent and said polyol to form a stable, substantially uniform blend that remains as a substantially uniform mixture when stored for a period of four (4) months under ambient conditions.2. The polyol premix composition of wherein the distribution-enhancing component has one or more hydroxyl groups and 1 to 25 carbon atoms.3. The polyol premix composition of wherein the distribution-enhancing component comprises alcohols claim 2 , glycols claim 2 , ethers claim 2 , acetals claim 2 , benzenes claim 2 , ketones claim 2 , chlorinated solvents claim 2 , carbonates claim 2 , solvents and surfactants.4. The polyol premix composition of wherein the halogenated olefin blowing agent comprises cis-1 claim 3 ,1 claim 3 ,1 claim 3 ,4 claim 3 ,4 claim 3 ,4-hexafluorobut-2-ene.5. The polyol premix composition of wherein the distribution-enhancing component comprises one or more of non-cyclic alcohols having 1 to 10 carbon atoms claim 1 , cyclic alcohols having 6 to 40 carbon atoms claim 1 , alkylphenols and alkylphenol ethoxylates claim 1 , dipropylene glycol claim 1 , diisopropylene glycol claim 1 , dipropylene ...

POLYURETHANE FOAM-FORMING COMPOSITIONS, METHODS OF MAKING LOW DENSITY FOAMS USING SUCH COMPOSITIONS, AND FOAMS FORMED THEREFROM

Disclosed are polyurethane foam-forming compositions with a phase stable isocyanate-reactive composition that includes a halogenated olefin blowing agent that has low or no ozone depletion potential and low global warming potential. Such polyurethane foam-forming compositions are suitable for spray application to produce polyurethane foams that are believed to exhibit good fire resistance properties, low smoke generation and low or no scorch due to reduced exotherm, thereby making them particularly suitable for use, for example, as relatively thick wall and/or roof insulation. 1. A polyurethane foam-forming composition comprising: (1) at least 50% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of an aromatic polyester polyol;', '(2) water; and', {'sub': 2', '6, '(3) a Cto Chalogenated olefin,'}], '(a) an isocyanate-reactive composition comprisingwherein the isocyanate-reactive composition exhibits no visible cloudiness or gels after aging the isocyanate-reactive composition for 7 days at 50° C.; and(b) a polyisocyanate.2. The foam-forming composition of claim 1 , wherein the isocyanate-reactive composition comprises at least 50% by weight claim 1 , based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition claim 1 , of a phthalic anhydride based polyester polyol.3. The foam-forming composition of claim 2 , wherein the phthalic anhydride based polyester polyol comprises a mixture of two or more phthalic anhydride based polyester polyols comprising:(i) a first phthalic anhydride based polyester polyol having a hydroxyl number of 290 to 310 mg KOH/gram polyol and a OH functionality of 2.0 to 2.2, and(ii) a second phthalic anhydride based polyester polyol having a hydroxyl number of 340 to 360 mg/KOH gram polyol and a OH functionality of 2.3 to 2.5.4. The foam-forming composition of claim 3 , wherein:(i) is present in an amount of 50% to 99% by weight, based on the ...

System and method for making textured foram that simulates human fingerprints

A section of (cured and non-liquid) textured foam includes at least a portion of an upper surface that substantially resembles a look of a human fingerprint for a purpose of providing enhanced grip traction between the at least the portion of the upper surface of the textured foam and a hand or a foot of a user of the textured foam. Disposed opposite of the upper surface of the textured foam may be an adhesive backing for attachment to a diverse variety of exterior surfaces where improved grip traction are desired. Systems and methods for making such textured foam that substantially resembles a look of a human fingerprint may utilize a heating means and a compression means.

REINFORCED INTUMESCENT POLYMER

An intumescent polymer is provided for molding fire-retardant structures. Expandable graphite is mixed in a polymer matrix to form the intumescent polymer. The expandable graphite is treated with silane to improve the strength of the polymer. Other ingredients may also be included within the polymer, including an acid source, blowing agent, char forming agent, an inorganic filler and a cross-linking agent. 1. An intumescent polymer , comprising:a polymer matrix; andexpandable graphite mixed within the polymer matrix;wherein the expandable graphite is covalently bonded to a silane.2. The intumescent polymer according to claim 1 , wherein the silane is covalently bonded to the expandable graphite with a hydrolysis reaction.3. The intumescent polymer according to claim 2 , wherein the silane is an alkyl-silane.44. The intumescent polymer according to claim 3 , wherein a side alkyl chain has carbon atoms or more.5. The intumescent polymer according to claim 3 , wherein the alkyl-silane comprises n-butyltrimethoxysilane claim 3 , pentyltriethoxysilane claim 3 , hexyltriethoxysilane claim 3 , isooctyltrimethoxysilane claim 3 , phenyltriethoxysilane claim 3 , octyltrimethoxysilane claim 3 , decyltriethoxysilane claim 3 , hexadecyltrimethoxysilane claim 3 , octadecyltrimethoxysilane claim 3 , eiscosyltrichlorosilane claim 3 , docosyltrichlorosilane or triacontyltrichlorosilane.6. The intumescent polymer according to claim 1 , wherein the silane is a chlorosilane.7. The intumescent polymer according to claim 6 , wherein the expandable graphite is covalently bonded with the chlorosilane in a gas phase.8. The intumescent polymer according to claim 6 , wherein the chlorosilane is trichloro(octyl)silane or vinyl trichlorosilane.9. The intumescent polymer according to claim 1 , wherein the silane is non-covalently bonded to the polymer matrix.10. The intumescent polymer according to claim 1 , wherein the silane is covalently bonded to the polymer matrix.11. The intumescent ...

FOAMED INJECTION MOULDED ARTICLE

The invention is directed to a foamed injection moulded article comprising a foam composition obtained by foaming high density polyethylene having a quotient of melt strength and apparent viscosity >2 cN/k·Pa·s wherein the melt strength is determined as described in ISO 16790:2005 and the apparent viscosity is determined as described in ISO 11443:2014. 1. A foamed injection moulded article comprising a foam composition obtained by foaming high density polyethylene having a quotient of melt strength and apparent viscosity >2 cN/k·Pa·s wherein the melt strength is determined as described in ISO 16790:2005 and the apparent viscosity is determined as described in ISO 11443:2014.2. The article according to characterised in that the high density polyethylene hasMI (melt index) in the range between ≥0.01 and ≤50{'sup': '3', 'density in the range between ≥930 and ≤985 kg/mand'} MI in the range between ≥1 and ≤100 and', {'sup': '3', 'density in the range between ≥930 and ≤985 kg/m'}], 'and the high density polyethylene has been obtained by chain branching high density polyethylene having'}, 'a gel fraction less than 5%'}wherein MI (melt index) is measured according ISO1133-1:2011 at a temperature of 190° C. at a load of 2.16 kg, the density is measured at a temperature of 23° C. according ISO1183-1:2012 and the gel fraction is determined according to ASTM D2765-11.3. The article according to characterised in that chain branching is performed by irradiation.4. The article according to characterised in that irradiation takes place via electron beam irradiation.5. The article according to characterised in that the foam injection moulded article has a density between 100 and 750 kg/m.6. The article according to characterised in that the melt strength of polyethylene to be foamed ≥10 cN.7. The article according to characterised in that the article comprises two compact skins and a foamed core between the two compact skins.8. The article according to characterised in that the high ...

ELECTRICALLY CONDUCTIVE RUBBER COMPOSITION, TRANSFER ROLLER, AND IMAGE FORMING APPARATUS

An electrically conductive rubber composition is provided, which comprises a rubber component including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking component and an azodicarbonamide foaming agent having an average particle diameter of 3 to 11 μm. The azodicarbonamide foaming agent is blended in a proportion of 0.5 to 8 parts by mass based on 100 parts by mass of the overall rubber component. A transfer roller () is produced by extruding the electrically conductive rubber composition into an elongated tubular body, and continuously feeding out the tubular body in the elongated state without cutting the tubular body to continuously pass the tubular body through a microwave crosslinking device and a hot air crosslinking device to continuously foam and crosslink the tubular body. 1. An electrically conductive rubber composition which can be foamed and crosslinked by means of a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device , the electrically conductive rubber composition comprising:a rubber component including at least a styrene butadiene rubber, an ethylene propylene diene rubber and an epichlorohydrin rubber;a crosslinking component for crosslinking the rubber component; anda foaming component for foaming the rubber component;wherein the foaming component comprises an azodicarbonamide foaming agent having an average particle diameter of not less than 3 μm and not greater than 11 μm in a proportion of not less than 0.5 parts by mass and not greater than 8 parts by mass based on 100 parts by mass of the overall rubber component.2. The electrically conductive rubber composition according to claim 1 , wherein the rubber component comprises at least one polar rubber selected from the group consisting of an acrylonitrile butadiene rubber claim 1 , a chloroprene rubber claim 1 , a butadiene rubber and an acryl rubber. The present application is a 37 C.F.R. §1.53(b) divisional of U.S. application ...

Biodegradable crosslinked polymers

A biodegradable crosslinked polymer which is a reaction product of a polymer having aldehyde-reactive functional groups and a polyaldehyde, wherein the polymer having aldehyde-reactive functional groups comprises a biodegradable structure or the polyaldehyde comprises a biodegradable structure.

Soft actuator and methods of fabrication

Soft actuators are fabricated from materials that enable the actuators to be constructed with an open-celled architecture such as an interconnected network of pore elements. The movement of a soft actuator is controlled by manipulating the open-celled architecture, for example inflating/deflating select portions of the open-celled architecture using a substance such as compressed fluid.

SILICONE FOAM COMPOSITIONS RAPIDLY CROSS-LINKABLE AT AMBIENT TEMPERATURES AND METHODS OF MAKING AND USING SAME

Provided are rapidly cross-linkable silicone foam compositions, kits, and methods for filling implanted medical devices in situ or in vivo, the implanted medical devices, including for example, body implants and tissue expanders, the compositions including a platinum divinyl disiloxane complex; a low viscosity vinyl terminated polydimethylsiloxane; a low viscosity hydride terminated polydimethylsiloxane; a silicone cross-linker; and a gas and/or gas-filled microcapsules, where the rapidly cross-linkable silicone foam composition has a viscosity of ≤150 cPs for ≥1 min. post-preparation and ≤300 cPs≤5 min. post-preparation, at ambient temperature. 1. A method of filling an implanted medical device , comprising:receiving a catalyst fluid comprising a first low viscosity vinyl terminated polydimethylsiloxane present in an amount of from about 97 wt % to about 99.5 wt % based on the weight of the catalyst fluid, and a platinum divinyl disiloxane complex;receiving a cross-linker suspension comprising a second low viscosity vinyl terminated polydimethylsiloxane, a low viscosity hydride terminated polydimethylsiloxane, a silicone cross-linker, and a sterile gas;mixing the catalyst fluid with the cross-linker suspension to produce an injectable composition having an initial viscosity of <150 cPs for at least about 1 minute after the mixing and a viscosity of ≥50,000 cPs≤24 hours after the mixing at ambient temperature; andinjecting a predetermined volume of the injectable composition into the implanted medical device.2. The method of claim 1 , in which the first low viscosity vinyl terminated polydimethylsiloxane is present in the catalyst fluid in an amount of from about 98 wt % to about 99 wt % based on the weight of the catalyst fluid.3. The method of claim 1 , in which the first low viscosity vinyl terminated polydimethylsiloxane has a viscosity of from about 1 to about 150 cPs.4. The method of claim 1 , in which the platinum divinyl disiloxane complex comprises Pt[(CH═ ...

SHOE SOLES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

A shoe sole composition and method for making a shoe sole are provided. The shoe sole includes a composition comprising a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm. The shoe sole exhibits a compression set of from about 5.0% to about 20.0%, as measured according to ASTM D 395 (6 hrs @ 50° C.). The foamed silane-crosslinked polyolefin elastomer can be produced from a blend including a first polyolefin having a density less than 0.86 g/cm, a second polyolefin, having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, a condensation catalyst, and a foaming agent. 1. A shoe midsole comprising:{'sup': '3', 'claim-text': [{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm,'}, 'a second polyolefin having a crystallinity less than 40%,', 'a silane crosslinker,', 'a grafting initiator,', 'a condensation catalyst, and', 'a foaming agent,, 'a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm, the foamed silane-crosslinked polyolefin elastomer comprisingwherein the shoe midsole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.).2. The shoe midsole of claim 1 , wherein the first polyolefin is an ethylene/α-olefin copolymer from about 60 wt % to about 97 wt %.3. The shoe midsole of claim 1 , wherein the second polyolefin is a polypropylene homopolymer and/or a poly(ethylene-co-propylene) claim 1 , the second polyolefin from about 10 wt % to about 35 wt %.4. The shoe midsole of claim 1 , wherein the silane crosslinker comprises a vinyltrialkoxy silane from about 1 wt % to about 4 wt %.5. The shoe midsole of claim 1 , wherein the grafting initiator comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides claim 1 , the grafting initiator from greater than 0.15 wt % to about 2 wt %.6. The shoe ...

SPRAY FOAMS CONTAINING NON-HALOGENATED FIRE RETARDANTS

A spray foam formulation used to form a spray foam insulation layer in a wall structure is described. The formulation may include the reaction product of a polyisocyanate compound and a polyol compound; a fire retardant chosen from at least one of a non-halogenated fire retardant; and a reactive halogen-containing fire retardant, and a carbohydrate. The spray foam insulation layer has an insulative R value of 3.0 to 7.2 per inch, and a density of between about 0.3 to about 4.5 pcf. Further, spray foam insulation made from the spray foam formulation may have fire retardant characteristics that are equivalent to or better than a similar spray insulation foam insulation using non-reactive halogenated fire retardants such as tris(1-chloro-2-propyl)phosphate (TCPP). 1. A spray foam formulation used in an insulation layer in a wall structure , the spray foam formulation comprising:a reaction product of a polyisocyanate compound and a polyol compound;a fire retardant chosen from at least one of a non-halogenated fire retardant, and a reactive halogen-containing fire retardant; anda carbohydrate,wherein the insulation layer has an insulative R value of 3.0 to 7.2 per inch, and a density of between about 0.3 to about 4.5 pcf, andwherein the insulation layer exhibits an Appendix X and an ASTM E-84 performance equivalent with or better than a similar spray insulation layer having a non-reactive halogenated fire retardant tris(1-chloro-2-propyl)phosphate (TCPP).2. The spray foam formulation of claim 1 , wherein the insulation layer is an open cell insulation layer having a density between about 0.3-0.7 pcf.3. The spray foam formulation of claim 1 , wherein the insulation layer is a closed cell insulation layer having a density between about 2.0-4.0 pcf.4. The spray foam formulation of claim 1 , wherein the non-halogenated fire retardant comprises diethyl hydroxymethylphosphonate.5. The spray foam formulation of claim 1 , wherein the non-halogenated fire retardant comprises at ...

PROCESS FOR PRODUCING EXPANDED POLYETHYLENE-BASED RESIN BEADS AND PROCESS FOR PRODUCING POLYETHYLENE-BASED MOLDED RESIN OBJECT BY IN-MOLD FOAMING

A method for producing polyethylene-based resin foamed particles includes a first-step foaming process. The first-step foaming process includes: producing an aqueous dispersion by dispersing polyethylene-based resin particles in an aqueous dispersing medium in a sealed vessel, adding a carbon dioxide-containing foaming agent to the aqueous dispersion in the sealed vessel, heating and pressurizing the aqueous dispersion in the sealed vessel, and releasing the aqueous dispersion in the sealed vessel to a pressure region where a pressure is lower than an internal pressure of the sealed vessel. The foaming ratio in the first-step foaming process is 10 to 18 times. The polyethylene-based resin particles have a polyethylene-based base resin and a melting point of 105 to 125° C., a tan δ of 0.3 to 0.7, and a complex viscosity of 5000 to 20000 Pa·s. 1. A method for producing polyethylene-based resin foamed particles comprising a first-step foaming process that comprises:producing an aqueous dispersion by dispersing polyethylene-based resin particles in an aqueous dispersing medium in a sealed vessel;adding a foaming agent containing carbon dioxide to the aqueous dispersion in the sealed vessel;heating and pressurizing the aqueous dispersion in the sealed vessel; andreleasing the aqueous dispersion in the sealed vessel to a pressure region where a pressure is lower than an internal pressure of the sealed vessel,wherein a foaming ratio in the first-step foaming process is 10 to 18 times,wherein the polyethylene-based resin particles comprise a base resin that is a polyethylene-based resin,wherein the polyethylene-based resin particles have a melting point of 105 to 125° C., a tan δ of 0.3 to 0.7, and a complex viscosity of 5000 to 20000 Pa·s, andwherein the tan δ and the complex viscosity are determined by a viscoelasticity measurement at a temperature of 130° C. and a frequency of 1.67 Hz.2. The method according to claim 1 , wherein the tan δ is 0.4 to 0.6 and the complex ...

PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate-containing compound; (ii) providing a B-side reactant stream that includes a polyol, where the B-side reactant stream includes a blowing agent that includes a pentane and a blowing agent additive that has a Hansen Solubility Parameter (δ) that is greater than 17 MPa; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture. 1. A process for producing a polyurethane or polyisocyanurate foam construction board , the process comprising:(i) providing an A-side reactant stream that includes a polymeric MDI;(ii) providing a B-side reactant stream that includes an aromatic polyester polyol, from about 1.0 to about 5.0 parts by weight surfactant, from about 5 to about 30 parts by weight of a flame retardant, up to 1.0 parts by weight of added water, one or more catalysts to initiate the reaction between the polymeric MDI and the aromatic polyester polyol and to promote a trimerization reaction to form polyisocyanurate groups, and from about 12 to about 40 parts by weight of a physical blowing agent mixture that includes an acyclic pentane and a blowing agent additive selected from the group consisting of an ester and a mixture of an ester and a ketone, where the amounts are based on 100 parts by weight of the aromatic polyester polyol, and where the physical blowing agent mixture includes from about 7 to about 35 mole % of the blowing agent additive based on the total moles of physical blowing agent mixture; and{'sup': '3', '(iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture, to thereby produce a closed-cell foam having a density of from about 1.5 to about 1.8 lbs/ft, and an index of at least 210.'}2. The process of claim 1 , further comprising exposing the reaction mixture to heat.3. The process of claim 2 , ...

POLYURETHANE FOAM PREMIXES CONTAINING HALOGENATED OLEFIN BLOWING AGENTS AND FOAMS MADE FROM SAME

Disclosed are polyol premix compositions, and foams formed therefrom, which comprise a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a catalyst system that includes a bismuth-based metal catalyst. Such catalysts may be used alone or in combination with an amine catalyst and/or other non-amine catalysts. 1. A method of forming a thermoset foam comprising:forming a polyol premix comprising: (a) from about 60 wt % to about 95 wt % of polyol; (b) from about 1 wt % to about 30 wt % of blowing agent, said blowing agent comprising from about 7 wt % to about 98 wt % by of 1-chloro-3,3,3-trifluoropropene; (c) at least one surfactant; and (d) a catalyst system comprising metal-based catalyst, wherein said metal based-catalyst consists essentially of at least one bismuth-based metal catalyst;using said polyol premix after a storage period of at least one month to form a foamable composition,forming a foam from said foamable composition, provided that said polyol premix is sufficiently free of non-bismuth-based catalyst such that said foam has a cream time of not greater than 10 seconds.2. The method of wherein said foam formed from said polyol premix has a cream time of not greater than 10 seconds when aged for 3 months at room temperature.3. The method of wherein said bismuth-metal catalyst comprises a catalyst represented by the formula Bi—(R) claim 1 , wherein each R is independently selected from the group consisting of a hydrogen claim 1 , a halide claim 1 , a hydroxide claim 1 , a sulfate claim 1 , a carbonate claim 1 , a cyanate claim 1 , a thiocyanate claim 1 , an isocyanate claim 1 , a isothiocyanate claim 1 , a carboxylate claim 1 , an oxalate claim 1 , a C-Calkane claim 1 , a C-Calkene claim 1 , a C-Calkyne claim 1 , a heteroalkyl group claim 1 , an aryl group claim 1 , a ketone claim 1 , an aldehyde claim 1 , an esters claim 1 , an ether claim 1 , an alcohol claim 1 , an alcoholate claim 1 , a phenolate claim 1 , a glycolates ...

METHOD OF DEWATERING IN A CONTINUOUS HIGH INTERNAL PHASE EMULSION FOAM FORMING PROCESS

A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt. After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box. A nip insert is inserted under the vacuum box to raise the vacuum box leading to improved uniformity of the HIPE in the cross direction along the belt. 1. A method for removing an aqueous phase from an open-celled foam , the method comprising:providing a belt comprising a cross directional width;providing an open-celled foam;providing a vacuum box, wherein the vacuum box comprises a nip insert, wherein the nip insert is located below the vacuum box and is in direct contact with the vacuum box;placing the open-celled foam on the belt; andpassing the open-celled foam over the vacuum box to remove a saturated aqueous phase.2. The method of claim 1 , wherein the vacuum box comprises a plurality of nip inserts claim 1 , wherein each of the plurality of nip inserts impacts an individual vacuum box.3. The method of wherein the nip insert is selected from the group consisting of one or more layers of tape claim 1 , a bolt claim 1 , a washer claim 1 , a screw claim 1 , a piece of wood claim 1 , and/or combinations thereof.4. The method of claim 2 , wherein the nip inserts are located at intervals along the belt cross directional width claim 2 , wherein the intervals between nip inserts are between about 0.5 inch to about 5 inches.5. The method of claim 2 , wherein the nip inserts are located at intervals along the belt cross directional width claim 2 , wherein the intervals between nip inserts are between about 1 inch to about 3 inches.6. The method of claim 2 , wherein the nip inserts raise the vacuum box by about 0.01 inch to about 0.1 inch.7. The method of claim 2 , wherein the nip inserts raise the vacuum box by about 0.02 inch to about 0.05 inch.8. A method for removing an aqueous phase from an open-celled foam claim 2 , the method comprising:forming an ...

Esterified acids for use in polymeric materials

The present teachings contemplate a method that includes a step of providing a first amount of esterified reaction product of an acid and an epoxy-based material. The esterified reaction product may be further reacted an epoxy resin to form a polymeric epoxy. The resulting material may have a generally linear backbone, foaming and curing capability and flame retardant properties,

PUMPABLE AND THERMALLY EXPANDABLE FILLER COMPOSITIONS

Pumpable thermally foaming filler compositions based on combinations of a liquid epoxy resin and a polyvinyl chloride resin and/or an acrylic resin powder. The pumpable filler materials provide the advantage that they can be applied as needed using conventional injection equipment and can be expanded to provide foam with good physical strength, high expansion and excellent adhesion on oiled metal substrates. Methods for filling closed spaces with the pumpable thermally foaming filler composition as well as vehicle parts are obtainable with the indicated methods. 1. A pumpable thermally foaming filler composition comprising:a liquid epoxy resin,a polyvinylchloride resin and/or acrylic resin powder, anda foaming agent.2. The pumpable thermally foaming filler composition of further comprising a synthetic rubber.3. The pumpable thermally foaming filler composition of further comprising one or more plasticizers.4. The pumpable thermally foaming filler composition of further comprising a curing agent for the liquid epoxy resin.5. The pumpable thermally foaming filler composition of further comprising one or more fillers.6. The pumpable thermally foaming filler composition of comprising10 to 20 wt.-% of a liquid epoxy resin, 10 to 20 wt.-% of polyvinylchloride resins and/or acrylic resin powders, 5 to 10 wt.-% of a synthetic rubber, 3 to 6 wt.-% of a foaming agent, 10 to 20 wt.-% of plasticizers, less than 1 wt.-% of a curing agent for the liquid epoxy resin and 25 to 35 wt.-% of fillers.7. The foamed filler obtainable by heating the pumpable thermally foaming filler composition of to a temperature above the activation temperature of the foaming agent.8. The filler of having an expansion of more than 300% of its unfoamed volume.9. A method comprising filling a closed space with the pumpable thermally foaming filler composition according to .10. A method for filling a closed space comprising the steps of{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'inserting a pumpable ...

SPONGE-FORMABLE SILICONE RUBBER COMPOSITION AND SILICONE RUBBER SPONGE

A sponge-formable silicone rubber composition comprises: (A) a polyorganosiloxane having at least two silicon-bonded alkenyl groups per molecule, (B) a polyorganosiloxane having at least two silicon-bonded hydrogen atoms per molecule, (C) water, (D) cellulose nanofibers, (E) an emulsifier, and (F) a hydrosilylation reaction catalyst. The sponge-formable silicone rubber composition can form a silicone rubber sponge having uniform and fine bubbles and that does not readily contaminate a mold. 1. A sponge-formable silicone rubber composition comprising:(A) 100 parts by mass of a polyorganosiloxane having at least two silicon-bonded alkenyl groups per molecule;(B) a polyorganosiloxane having at least two silicon-bonded hydrogen atoms per molecule, in an amount such that an amount of silicon-bonded hydrogen atoms in component (B) is from 0.4 to 20 moles per 1 mole of alkenyl groups in component (A);(C) from 20 to 500 parts by mass of water;(D) cellulose nanofibers, in an amount of from 0.01 to 15 parts by mass per 100 parts by mass of component (C);(E) from 0.1 to 15 parts by mass of an emulsifier; and(F) a hydrosilylation reaction catalyst, in an amount to accelerate a hydrosilylation reaction of the composition.2. The sponge-formable silicone rubber composition according to claim 1 , wherein component (D) is cellulose nanofibers having a number-average fiber diameter of 2 to 150 nm.3. The sponge-formable silicone rubber composition according to claim 1 , further comprising (G) a hydrosilylation reaction inhibitor claim 1 , in an amount of 0.001 to 5 parts by mass per 100 parts by mass of component (A).4. The sponge-formable silicone rubber composition according to claim 1 , further comprising (H) a reinforcing silica fine powder claim 1 , in an amount of not greater than 30 parts by mass per 100 parts by mass of component (A).5. A silicone rubber sponge obtained by crosslinking the sponge-formable silicone rubber composition according to by a hydrosilylation reaction ...

PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising of providing an A-side reactant stream that includes an isocyanate-containing compound; providing a B-side reactant stream that includes a polyol, where the B-side reactant steam includes a blowing agent mixture including isopentane and a blowing agent additive that has a Hansen Solubility Parameter (δ) that is greater than 15 MPa; and mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture. 1. A construction board comprising:{'sup': '−0.5', '(i) a foam body having a generally planar shape with first and second planar surfaces, where said foam body is a closed-cell foam body including an acyclic pentane and a blowing agent additive contained within the foam body, where the blowing agent additive has a Hansen Solubility Parameter of from 17.0 to 35.0 MPa, where the blowing agent additive has a boiling point, at one atmosphere, of less than 150° C., where said blowing agent additive is selected from the group consisting of ketones, aldehydes, ethers, esters, halogenated hydrocarbons, and aromatics, where the acyclic pentane and the blowing agent additive form a physical blowing agent mixture, where the physical blowing agent mixture includes from about 7 to about 35 mole % of the blowing agent additive based on the total moles of physical blowing agent mixture, where the closed-cell body is a polyurethane or polyisocyanurate foam body prepared by reacting an isocyanate-containing compound with an aromatic polyester polyol, and where the isocyanate-containing compound and the aromatic polyester polyol are reacted at a molar ratio to provide an iso index of at least 220; and'}(ii) first and second facers attached to said first and second planar surfaces, respectively.2. The construction board of claim 1 , where the foam body has a density of 1.0 to 2.5 lbs/ft.3. The construction board of claim 1 , where the foam body has an index ...

NEW FOAM WITH IMPROVED EXPANSION BEHAVIOUR WHEN USED IN THIN LAYERS

A thermally expandable composition, including (a) at least one polymer P, cross-linkable by a free-radical initiator, and (b) at least one solid butyl rubber BRu, and (c) at least one free-radical initiator, and (d) at least one blowing agent, and (e) at least one tackifier TA, whereby the cured expanded composition has a volume increase compared to the uncured composition of less than 1300%. The thermally expandable composition is able to provide good expansion behaviour and good adhesion on metal surfaces and is especially suitable for baffle and/or reinforcement elements, e.g. in automotive manufacturing. 1. A thermally expandable composition , comprising(a) at least one polymer P, cross-linkable by a free-radical initiator, and(b) at least one solid butyl rubber BRu, whereby the composition comprises the solid butyl rubber with an amount of between 5 wt.-% and 16 wt.-%, based on the total weight of the composition, and(c) at least one free-radical initiator, and(d) at least one blowing agent, and(e) at least one tackifier TA,whereby the cured expanded composition has a volume increase compared to the uncured composition of less than 1300%, whereby the volume increase is determined using the DIN EN ISO 1183 method of density measurement (Archimedes principle).2. The thermally expandable composition of claim 1 , wherein the composition comprises the tackifier with an amount of between 12 wt.-% and 30 wt.-% claim 1 , based on the total weight of the composition.3. The thermally expandable composition of claim 1 , wherein the tackifier is a hydrocarbon resin.4. The thermally expandable composition of claim 1 , wherein the composition further comprises at least one process oil PO selected from the group consisting of aromatic oil claim 1 , naphthenic oil and poly(iso)butylene.5. The thermally expandable composition according to claim 4 , wherein the composition comprises the process oil PO with an amount of between 18 wt.-% and 35 wt.-% claim 4 , based on the total ...

Method for manufacturing foam-molded article, and foam-molded article

A foam-molded article has high weldability to a polypropylene-based resin molded article, a high expansion ratio, and a predetermined level of impact resistance despite using inexpensive polyethylene-based resin. The foam-molded article includes a foamed and molded base material resin in which a first polyethylene-based resin, a second polyethylene-based resin, and a polypropylene-based resin are mixed. The first polyethylene-based resin has a long-chain branched structure and a density of 0.920 g/cm 3 or more. The second polyethylene-based resin is manufactured by a low pressure slurry method, and has a long-chain branched structure and a density of 0.920 g/cm 3 or less. The second polyethylene-based resin has a melt tensile force of 70 mN or more at 160° C. The polypropylene-based resin has a compounding ratio of 20% or more by weight of the base material resin.

THERMOPLASTIC POLYMERS

Thermoplastic polymers, for example fluoropolymers, are foamed by use of a solid formulation comprising thermoplastic polymer and manganese oxalate. 114-. (canceled)15. A method of preparing a foamed thermoplastic polymer which comprises subjecting a mixture comprising an oxalate compound and a thermoplastic polymer to a temperature of greater than 300° C.16. (canceled)17. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is a high performance thermoplastic polymer which:(i) has a melting point of at least 250° C.; and/or(ii) has a continuous use temperature of at least 160° C.; and/or(iii) has a melt flow rate (MFR at 372° C./5.0 kg) assessed using IS012086 in the range 1.2 to 36 g/10 min; and/or(iv) has a tensile strength, measured in accordance with ASTM D638, of at least 1500 psi; and/or(v) has a flexural modulus, in accordance with ASTM D790 at +23° C., of at least 70,000 psi; and/or(vi) has a tensile modulus, in accordance with ASTM D638, of at least 30,000.18. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is selected from fluoropolymers claim 15 , high-performance polyamides (HPPAs) claim 15 , liquid crystal polymers claim 15 , polyamideimides (PAIs) claim 15 , polybenzimidazoles (PBIs) claim 15 , polybutylene terephthalates (PBTs) claim 15 , polyetherimides (PHs) claim 15 , polyimides (Pis) claim 15 , polyketones (PAEKs) claim 15 , polyphenylene sulfides (PPS) claim 15 , polysulfone derivatives claim 15 , polycyclohexane dimethyl-terephthalates (PCTs) claim 15 , syndiotactic polystyrene claim 15 , PET and polycarbonate.19. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is a fluoropolymer.20. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is FEP.21. A method according to claim 15 , wherein the ratio of the total weight of thermoplastic polymers divided by the total weight of oxalate compounds in said mixture is less than 1000 ...

REVERSIBLY CROSS-LINKABLE RESIN

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material. 1. A method of manufacturing extruded reversibly cross-linkable polymeric foam comprising: a first polymeric material and;', 'at least one reversibly cross-linkable agent polymerized with said first polymeric material, forming a reversibly cross-linkable copolymer;, 'introducing a foamable polymeric composition into an extruder to form a polymer melt, said foamable polymeric composition comprisinginjecting at least one blowing agent into said reversibly cross-linkable copolymer, forming an extrusion composition; andextruding said extrusion composition to produce a reversibly cross-linkable foam, wherein said reversibly cross-linkable foam is thermally stable at temperatures of at least 10 degrees Celsius higher than otherwise identical polymeric foam that does not include the cross-linking agent polymerized with the first polymeric material.2. The method of claim 1 , wherein said first polymeric material comprises an alkenyl aromatic polymer.3. The method of claim 2 , wherein said alkenyl aromatic polymer is derived from one or more of styrene claim 2 , a-methylstyrene claim 2 , ethylstyrene claim 2 , vinyl benzene claim 2 , vinyl toluene claim 2 , chlorostyrene claim 2 , and bromostyrene.4. The method of claim 1 , wherein said cross-linking agent comprises a metal-ligand complex ion.5. The method of claim 1 , wherein said metal-ligand complex ion includes a hydroxyl-containing (meth)acrylate.6. The method of claim 1 , wherein said ligand is at least one of a polyester (meth) ...

ROOFING MEMBRANES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). 1. A roofing membrane comprising:{'sup': '3', 'a top layer comprising a flame retardant and a first silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm;'}an optional scrim layer; and{'sup': '3', 'a bottom layer comprising a flame retardant and a second silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm.'}2. The roofing membrane of claim 1 , wherein the flame retardant comprises a magnesium hydroxide and/or an aluminum hydroxide from about 20 wt % to about 70 wt %.3. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers both exhibit a crystallinity of from about 5% to about 25%.4. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers have a glass transition temperature of from about −75° C. to about −25° C.5. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers each comprise a first polyolefin having a density less than 0.86 g/cm claim 1 , a second polyolefin claim 1 , a silane crosslinker claim 1 , a grafting initiator claim 1 , and a condensation catalyst.6. The roofing membrane of claim 5 , wherein the silane crosslinker comprises a vinyltrialkoxy silane from about 1 wt % to about 4 wt %.7. The roofing membrane of claim 5 , wherein the condensation catalyst comprises a sulfonic ester catalyst and/or a tin catalyst from about 1 wt % to ...

Hybrid foam formulations

Embodiments of the present disclosure are directed towards hybrid foam formulations that include: an isocyanate-reactive composition, and a high-functionality crosslinker; an azo type radical initiator; and an isocyanate.

PROCESS FOR THE PRODUCTION OF HIGH INTERNAL PHASE EMULSION FOAMS

A method for polymerizing an open-cell foam including exposing an emulsion comprising a photoinitiator to an Ultraviolet light source, partially polymerizing the top surface of the emulsion, and moving the partially polymerized emulsion to a second polymerization stage. 19.-. (canceled)1024.-. (canceled)25. A method for polymerizing an open-cell foam comprising:exposing a High Internal Phase Emulsion comprising a free-radical initiator to an Ultraviolet light source; andpartially polymerizing the top surface of the High Internal Phase Emulsion.26. The method of claim 25 , wherein the High Internal Phase Emulsion is moved to a curing oven.27. The method of claim 25 , wherein the High Internal Phase Emulsion is moved to a multi-tiered curing oven.28. The method of claim 25 , wherein the High Internal Phase Emulsion further comprises an oil phase a monomer claim 25 , a cross-linking agent claim 25 , an emulsifier and an aqueous phase.29. The method of claim 25 , wherein the UV light is in the wavelength range of from about 200 nm to about 800 nm.30. The method of claim 25 , wherein the source of UV light is a UV lamp.31. The method of claim 25 , wherein the High Internal Phase Emulsion is exposed to the UV light for less than about 1 minute.32. The method of claim 25 , wherein the free-radical initiator is at least one of ammonium persulfate claim 25 , sodium persulfate claim 25 , potassium persulfate claim 25 , 2 claim 25 ,2′-azobis(N claim 25 ,N′-dimethyleneisobutyramidine)dihydrochloride claim 25 , persulfate-bisulfate and persulfate-ascorbic acid.33. The method of wherein the curing oven is a multi-tiered curing oven comprising at least three curing oven belts.34. The method of wherein the top surface has a z-stick measurement of less than 0.70N.35. The method of claim 25 , wherein an aqueous phase and an oil phase of the High Internal Phase Emulsion are combined in a ratio between about 8:1 and about 140:1.36. The method of claim 25 , wherein the High Internal ...

LIQUID MODIFIER AS CARRIER SYSTEM FOR CFAS IN FOAMED POLYSTYRENES

The invention relates to a liquid formulation for foaming a thermoplastic polystyrene, said formulation comprising 1. A liquid formulation for foaming a thermoplastic polystyrene , said formulation comprisinga) 25-90 wt. % of a liquid carrier; andb) at least one endothermic chemical blowing agent selected from the group consisting of tricarboxylic acids, salts of tricarboxylic acids and esters of tricarboxylic acids.2. The formulation as claimed in claim 1 , wherein the formulation is a dispersion and wherein the endothermic chemical blowing agent is dispersed in the liquid carrier.3. The formulation as claimed in claim 1 , wherein the chemical blowing agent is selected from the group consisting of succinic acid claim 1 , succinic acid salts claim 1 , succinic acid esters claim 1 , adipic acid claim 1 , adipic acid salts claim 1 , adipic acid esters claim 1 , phthalic acid claim 1 , phthalic acid salts claim 1 , phthalic acid esters claim 1 , citric acid claim 1 , citric acid salts and citric acid esters.4. The formulation as claimed in claim 1 , wherein the chemical blowing agent is selected from the group consisting of citric acid claim 1 , citric acid salts and citric acid esters.5. The formulation as claimed in claim 1 , wherein the liquid carrier comprises an aqueous medium claim 1 , an organic solvent-based medium claim 1 , an oil-based medium or a combination thereof.6. The formulation as claimed in claim 1 , wherein the liquid carrier comprises a vegetable oil claim 1 , a mineral oil claim 1 , an acetylated monoglyceride claim 1 , a sorbitan oleate claim 1 , an ethoxylated sorbitan oleate or a mixture thereof.7. The formulation as claimed in claim 1 , further comprising customary additives selected from the group consisting of colorants claim 1 , stabilizers claim 1 , antioxidants claim 1 , antibacterial agents claim 1 , neutralizers claim 1 , antistatic agents claim 1 , antiblocking agents claim 1 , optical brighteners claim 1 , heavy metal inactivation ...

Closed-cell foamed rubber-based resin object

A rubber-based resin closed-cell foam comprising a rubber-based resin having an acrylonitrile component content of 30% by mass or more, and carbon black contained in the rubber-based resin portion, the carbon black having a total nitrogen adsorption specific surface area of 600 to 2400 m 2 per 100 parts by mass of the rubber-based resin.

Silicone resin foam and sealing material

A silicone resin foamed body according to the present invention comprises: a silicone resin cured product (A); and a plurality of particles (B) dispersed in the silicone resin cured product (A) and each having a cavity portion (b1) therein, wherein the silicone resin foamed body has a cavity portion (C) surrounded with the silicone resin cured product (A) or with the silicone resin cured product (A) and the particles (B) in the silicone resin cured product (A).

Modified polystyrene resin particles and manufacturing method therefor, expandable particles and manufacturing method therefor, pre-expanded particles, and expanded molded article

Modified polystyrene cross-linked resin particles in which polyacrylic acid ester-based resin fine particles having an average particle diameter in the range of 30 to 1,000 nm are dispersed in polystyrene-based resin particles, wherein the content of gel component fraction insoluble to toluene when about 1 g of the modified polystyrene-based cross-linked resin particles is dissolved in 50 ml of toluene at 25° C. is in the range of from 5 to 25% and the gel component shows a degree of swelling in the range of from 10 to 20 in toluene at 25° C.

Thermally hardenable preparations

The subject matter of the present application is thermally-expandable preparations, containing (a) at least one peroxide-crosslinkable polymer, (b) at least one low-molecular, multifunctional acrylate, (c) at least one peroxide and (d) at least two different chemical propellants, the mass ratio of the at least one peroxide to the at least one low-molecular, multifunctional acrylate being at least 1:3.

METHOD FOR OBTAINING A ONE COMPONENT, OXYGEN CURABLE COMPOSITION

A novel polymerizable composition, which can be used in 1K aerosol can systems for forming a foam, include a reactive precursor mixture, which is subjected to one or more deoxygenation measures so that it does not react during storage, and an alkyl metal compound, such as an organic borane compound as initiator. Since the initiation of the polymerization is enabled by oxygen, particularly oxygen from ambient air, the curing of the composition is not dependent on ambient moisture and proceeds even at low temperatures, including those below 0° C. The composition has a fast curing time when contacted with oxygen or air, and the resulting final cured product has a high quality. 1. A method for preparing a one component , oxygen-curable precursor composition , comprising:(i) preparing or providing a reactive precursor mixture, wherein the reactive precursor mixture comprises at least one free-radically polymerizable monomer and/or oligomer;(ii) subjecting the reactive precursor mixture to a deoxygenation treatment, thereby obtaining a deoxygenated reactive precursor mixture;(iii) adding an oxygen scavenger to the deoxygenated reactive precursor mixture, and subsequently(iv) adding an organometal or organoborane compound radical initiator to the deoxygenated reactive precursor mixture.2. The method according to claim 1 , wherein the reactive precursor mixture has a viscosity of at least 3500 cP.3. The method according to claim 1 , wherein the deoxygenation treatment comprises subjecting the reactive precursor mixture to one or more deoxygenation cycles claim 1 , wherein each deoxygenation cycle comprises degassing the reactive precursor mixture by subjecting it to a vacuum and subsequently purging or flushing the degassed reactive precursor mixture with an inert gas.4. The method according to claim 1 , wherein the reactive precursor mixture comprises at least one ethylenically unsaturated compound having at least one free-radically polymerizable carbon-carbon double bond. ...

Sustainable hybrid organic aerogels and methods and uses thereof

Highly porous, lightweight, and sustainable hybrid organic aerogels with ultra-low densities and excellent material properties and methods for preparing them are provided, including, e.g., PVA/CNF/GONS, RF/CNF/GONS, and PVA/CNF/MWCNT. The aerogels are modified to have a super-hydrophobic surface, thus leading to an extremely low swelling ratio and rate of moisture absorption.

SOUND ISOLATION UNIT AND PRODUCTION METHOD THEREOF

A supercharger system for a vehicle engine comprises a supercharger and a sound isolation unit at least partly surrounding the supercharger. The sound isolation unit comprises an inner layer facing the supercharger, a sound barrier layer facing away from the supercharger and a core there between. All three layers are made from polyurethane but with different densities. Furthermore, the core comprises an open cell structure for sound absorption. 1. A supercharger system for a vehicle engine , the system comprising:a supercharger; anda sound isolation unit at least partly surrounding the supercharger, the sound isolation unit comprising an inner layer facing the supercharger, a sound barrier layer facing away from the supercharger and a core between the inner layer and the sound barrier layer, wherein all three layers are made from polyurethane but with different densities, and wherein the core comprises an open cell structure for sound absorption.2. The system according to wherein the inner layer is liquid impermeable and sound permeable.3. The system according to wherein the inner layer has a maximum thickness of 0.2 mm and a density of 800-1000 g/L.4. The system according to wherein the sound barrier layer has a thickness of 1-2 mm and a density of 800-1000 g/L.5. The system according to wherein the sound barrier layer has a thickness of 1.5 mm.6. The system according to wherein the sound barrier layer further comprises a metal sheet.7. The system according to wherein the core comprises a three dimensional structure with one or a plurality of cavities for increased sound absorption area.8. The system according to wherein the core has a thickness of 5-30 mm and a density of 70-230 g/L.9. The system according to wherein the open cell structure of the core is made from crushing gas bubbles within the core created during curing of the polyurethane.10. A method for manufacturing a sound isolation unit for a supercharger in a vehicle engine such that the sound isolation ...

THERMALY EXPANDABLE COMPOSITION WITH REDUCED ODOR FORMATION

A thermally expandable composition includes at least one polymer P cross-linkable by peroxide, and at least one acrylate, and at least one peroxide, azodicarbonamide and a zinc compound. The thermally expandable composition leads to low odor formation and low ammonia emission during and after the foaming process. The thermally expandable composition further shows excellent properties in terms of expansion stability. 1. A thermally expandable composition , comprising(a) at least one polymer P, cross-linkable by peroxide, and(b) at least one acrylate A, and(c) at least one peroxide PE, and(d) azodicarbonamide ADCA,(e) zinc compound ZC,wherein the molar ratio of the zinc compounds ZC to the peroxide PE is between 0.1 and 6.0,and the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 5 and 30.2. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.1 and 4.0.3. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.5 and 2.5.4. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.1 and 2.05. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 8 and 25.6. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 12 and 25.7. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the sum of peroxide PE and zinc compound ZC (ADCA:(PE+ZC)) is between 2 and 20.8. The thermally expandable composition of claim 1 , wherein the zinc compound ZC is selected from at least one of the group consisting of zinc oxide claim 1 , zinc stearate claim 1 , zinc bis(p-toluenesulphinate) and zinc bis( ...

ELECTRET SHEET AND PIEZOELECTRIC SENSOR

The present invention provides an electret sheet which can maintain a high generated voltage even if a large amount of pressure has been applied. Disclosed is an electret sheet of the present invention including an electrically charged propylene-based resin foam sheet which contains a crosslinked propylene-based resin that includes a propylene-α-olefin random copolymer having a weight average molecular weight of 370,000 to 420,000 at a proportion of 60% by weight or more, and has a gel fraction of 30% to 50% by weight, and in which the average thickness is 90 to 150 μm, and the average number of foam cells in the thickness direction is 2 to 4 cells. 1. An electret sheet comprising an electrically charged propylene-based resin foam sheet having an average thickness of 90 to 150 μm , a foaming ratio of 3.5 to 9 times , and a gel fraction of 30% to 50% by weight ,wherein the propylene-based resin foam sheet includes a resin composition containing a crosslinked body of a propylene-α-olefin random copolymer having a weight average molecular weight of 370,000 to 420,000 at a proportion of 60% by weight or more.2. The electret sheet according to claim 1 , wherein the gel fraction of the propylene-based resin foam sheet is 35% to 50% by weight.3. The electret sheet according to claim 1 , wherein the total content of fatty acids and fatty acid amides included in all of the crosslinked bodies of the propylene-α-olefin random copolymer in the resin composition is 50 ppm or less relative to the total weight of the crosslinked bodies of the propylene-α-olefin random copolymer.4. The electret sheet according to claim 1 , wherein the crosslinked body of the propylene-α-olefin random copolymer is a crosslinked body formed using a polyfunctional acrylic monomer.5. A piezoelectric sensor comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the electret sheet according to ;'}a signal electrode laminated on a first surface of the electret sheet; anda ground electrode laminated ...

Method of microcellular foam molding

A method of microcellular foam molding an article is provided with filling a mold with a polyolefin compound; forming crosslinks in the mold to obtain a crosslinked mold; dissolving a supercritical fluid into the crosslinked mold under a predetermined pressure and at a predetermined temperature for a predetermined period of time to obtain a second mold configured to allow the supercritical fluid to effuse through; and heating the second mold at a second predetermine temperature for a predetermined foaming time until a foamed article is finished in the second mold. A second embodiment involves using elastomers as foaming materials is also provided.

MACROPOROUS PHOTONIC CRYSTAL MEMBRANE, METHODS OF MAKING, AND METHODS OF USE

In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, embodiments of the present disclosure, in one aspect, relate to macroporous photonic crystal membranes, structures including macroporous photonic crystal membranes, devices including macroporous photonic crystal membranes, methods of using macroporous photonic crystal membranes, methods of making macroporous photonic crystal membranes, and the like. 114-. (canceled)15. A method , comprising:providing a macroporous photonic crystal membrane including a three dimensional array of macropores, wherein a three dimensional polymer framework separates the macropores, wherein the macropores are in a collapsed state, wherein when the macropores are in the collapsed state the macroporous photonic crystal membrane is substantially transparent,exposing the macropores to a vapor, andtransforming the macropores transform from the collapsed state into an uncollapsed state, wherein the macroporous photonic crystal membrane has an iridescent color in the uncollapsed state.16. The method of claim 15 , wherein the vapor is selected from the group consisting of: acetone claim 15 , methanol claim 15 , dichloromethane claim 15 , benezene claim 15 , toluene claim 15 , and ethanol.17. The method of claim 15 , wherein the vapor is acetone.18. The method of claim 15 , wherein the macroporous photonic crystal membrane having the macropores in the uncollapsed state after exposure to a first vapor has a different iridescent color than the macroporous photonic crystal membrane having the macropores in the uncollapsed state after exposure to a second vapor.19. The method of claim 15 , wherein the first vapor is acetone and the second vapor is selected from the group consisting of: methanol claim 15 , dichloromethane claim 15 , benezene claim 15 , toluene claim 15 , and ethanol.2010. The method of claim claim 15 , furthering comprising:exposing the macroporous photonic crystal membrane having the ...

CROSSLINKED POLYVINYLIDENE FLUORIDE RESIN FOAM SHEET AND METHOD FOR PRODUCING SAME

The foamed sheet of the present invention is a foamed sheet obtained by crosslinking and foaming a polyvinylidene fluoride-based resin composition comprising a polyvinylidene fluoride-based resin, wherein the polyvinylidene fluoride-based resin comprises a vinylidene fluoride-hexafluoropropylene copolymer, a density of the foamed sheet is not more than 180 kg/cm, and an average cell diameter of the foamed sheet is not less than 100 μm and not more than 500 μm. According to the present invention, a crosslinked polyvinylidene fluoride-based resin foamed sheet having both good flame retardance and good flexibility and a process for producing the foamed sheet are provided. 1. A crosslinked polyvinylidene fluoride-based resin foamed sheet obtained by crosslinking and foaming a polyvinylidene fluoride-based resin composition comprising a polyvinylidene fluoride-based resin , whereinthe polyvinylidene fluoride-based resin comprises a vinylidene fluoride-hexafluoropropylene copolymer,{'sup': '3', 'a density of the crosslinked polyvinylidene fluoride-based resin foamed sheet is not more than 180 kg/m, and'}an average cell diameter of the crosslinked polyvinylidene fluoride-based resin foamed sheet is not less than 100 μm and not more than 500 μm.2. The crosslinked polyvinylidene fluoride-based resin foamed sheet according to claim 1 , wherein the number of cells within 3 mm width of the crosslinked polyvinylidene fluoride-based resin foamed sheet is not less than 5 and not more than 20.3. The crosslinked polyvinylidene fluoride-based resin foamed sheet according to claim 1 , wherein cell diameters within 3 mm width of the crosslinked polyvinylidene fluoride-based resin foamed sheet satisfy the following formula:{'br': None, 'i': maximum value of cell diameters within', 'mm width', 'minimum value of cell diameters within', 'mm width', 'average cell diameter, '{(3 )−(3 )}/()≤2.2.'}4. The crosslinked polyvinylidene fluoride-based resin foamed sheet according to claim 1 , having ...

PRODUCTION OF A PMMA FOAM USING CROSS-LINKING AGENTS, REGULATORS AND BLOWING AGENTS

The present invention relates to novel types of PMMA foams and also to the production thereof. The recipes used in the production process include particularly crosslinkers and chain transfer agents as recipe constituents, mostly in low concentrations, in addition to suitable blowing agents. It was found that, surprisingly, the invention provides a simple-to-produce stable PMMA foam having very good properties. 113-. (canceled)14: A process for producing a polymethacrylate foam , said process comprising:polymerizing at a temperature between 20° C. and 100° C. a composition to obtain a polymerized composition, and said composition comprising', 'from 0.01 to 2.0 wt % of an initiator,', 'from 2 to 20 wt % of a blowing agent, and', 'from 75 to 97.9 wt % of a monomer mixture,', from 79.70 to 99.995 mol % of MMA,', 'from 0 to 20 mol % of one or more MMA-copolymerizable monomers,', 'from 0.002 to 0.5 mol % of crosslinker, and', 'from 0.003 to 1.5 mol % of chain transfer agent and, 'wherein said monomer mixture comprises'}, 'may be present as polymer and/or oligomer to an extent of from 0 to 80 wt %., 'subsequently foaming the polymerized composition at between 130° C. and 250° C.,'}15: The process according to claim 14 , wherein the composition comprises from 0.2 to 1.5 wt % of the initiator claim 14 , from 3 to 15 wt % of the blowing agent and from 80 to 96.8 wt % of the monomer mixture claim 14 , wherein said monomer mixture comprises from 89.85 to 99.988 mol % of MMA claim 14 , from 0 to 10 mol % of one or more MMA-copolymerizable monomers claim 14 , from 0.005 to 0.3 mol % of crosslinker and from 0.006 to 1 mol % of chain transfer agent and is present as polymer and/or oligomer to an extent of from 0 to 50 wt %.16: The process according to claim 14 , wherein the temperature is between 30° C. and 70° C. for the polymerization and between 150° C. and 230° C. for the foaming.17: The process according to claim 14 , wherein the crosslinker comprises a di- claim 14 , tri- or ...

PROCESS FOR PRODUCING FOAMS BASED ON THERMOPLASTIC POLYURETHANES

A process for producing foamed thermoplastic polyurethane particles comprises the steps of a) melting a thermoplastic polyurethane in a first extruder (E), b) injecting a gaseous blowing agent in a second extruder (E), c) impregnating the gaseous blowing agent homogeneously into the thermoplastic polyurethane melt in a third extruder (E), d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles. 1. A process for producing foamed thermoplastic polyurethane particles , the process comprising:{'b': '1', 'a) melting a thermoplastic polyurethane in a first extruder E,'}{'b': '2', 'b) injecting a gaseous blowing agent in a second extruder E,'}{'b': '3', 'c) impregnating the gaseous blowing agent homogeneously into the thermoplastic pol-yurethane melt in a third extruder E, and'}d) extruding the impregnated thermoplastic polyurethane melt through a die plate and granulating the melt in an underwater granulation device under temperature and pressure conditions to form foamed thermoplastic polyurethane particles.2. The process according to claim 1 , wherein a bulk density of the foamed thermoplastic polyurethane particles formed in step d) ranges from 30 to 250 kg/m3.3. The process according to claim 1 , wherein the gaseous blowing agent comprises CO2 claim 1 , N2 claim 1 , or a combination of CO2 and N2.4132. The process according to claim 1 , wherein a single screw extruder is used as the first extruder E and the third extruder E claim 1 , and a twin extruder is used as the second Extruder E.5. The process according to claim 1 , wherein the water in the underwater granulation device has a pressure in the range from 1 to 20 bar and a temperature in the range from 10 to 50° C. This invention relates to a process for production of expanded pellets from a polymer melt comprising a blowing agent. ...

AZEOTROPE-LIKE COMPOSITIONS OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE

This invention relates to azeotrope-like compositions, methods and systems having utility in numerous applications, and in particular, uses for azeotrope-like compositions comprising effective amounts of the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HF0-1336mzzm), which has the following structure: 1. An azeotrope-like composition comprising effective amounts of from greater than zero to about 99 wt % of the compound cis-1 ,1 ,1 ,4 ,4 ,4-hexafluoro-2-butene (Z-HFO-1336mzzm) and from about 1 wt % to less than 100 wt % of another material selected from the group consisting of water , fluoroketones , alcohols , hydrochloro-fluoroolefins , and combinations of two or more thereof2. The azeotrope-like composition of comprising effective amounts of from about 85 wt % to less than 100 wt % of Z-HFO-1336mzzm and from greater than zero to about 15 wt % of an alcohol claim 1 , and combinations of two or more thereof.3. The azeotrope-like composition of comprising effective amounts of from greater than zero to about 50 wt % of water and from about 50 wt % to less than 100 wt % of Z-HFO-1336mzzm.4. The azeotrope-like composition of comprising effective amounts of from 50 wt % to about 99 wt % of Z-HFO-1336mzzm and from about 1 wt % to less than 50 wt % of a fluoroketone.5. The azeotrope-like composition of comprising effective amounts of from about 1 wt % to about 99 wt % of Z-HFO-1336mzzm and from about 1 wt % to about 99 wt % of trans-1 claim 1 ,1 claim 1 ,1-trifluoro-3-chloropropene.6. A blowing agent comprising an azeotrope-like composition of .7. A method of forming a foam comprising adding to a foamable composition a blowing agent comprising an azeotrope-like composition of .8. A premix of a polyol and a blowing agent wherein the blowing agent comprises an azeotrope-like composition of .9. A closed cell foam prepared by foaming a foamable composition in the presence of a blowing agent comprising the azeotrope-like composition of .10. A refrigerant composition ...

Inherent flame retardant rigid polyurethane foam

The present invention provides a kind of inherent flame retardant rigid polyurethane foam. The production formula comprises 100 to 105 pbw of polyether polyol and reactive phosphorus-containing flame retardant, 2.5 to 3.5 pbw of amine catalyst, 0.8 to 2.5 pbw of tertiary amine catalyst, 0.8 to 2.5 pbw of foam stabilizer, 0.5 to 1.5 pbw of blowing agent, 135 to 150 pbw of isocyanates, and 0.05 to 0.1 pbw of organo-metallic catalyst, wherein the reactive phosphorus-containing flame retardant is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-4-hydroxybenzyl alcohol. The active monomers containing flame retarding elements are introduced into main chain and side chain of PU for modification, which permanently improves the flame retardancy of PU without obvious effect on other performance of PU matrix.

Conductive foam roll

Provided is a conductive foam roll having a high surface opening ratio that achieves both cleaning performance and low resistance. A conductive foam roll 10 includes a shaft body 12 and a conductive foam layer 14 around the shaft body 12 , wherein the conductive foam layer 14 has a surface opening ratio of 50% to 90%, and wherein the conductive foam layer 14 contains an ionic conductive agent that contains salt of diallyl-type ammonium cations, and at least one selected from the group consisting of N,N-bis(trifluoromethanesulfonyl)imide anions, and N,N-bis(fluorosulfonyl)imide anions.

Polyurethane Foam using HFO Propellants

The invention pertains generally to a shelf-stable polyurethane HFO-blown two-component polyurethane foam composition which includes controlling the ratio of tin-containing catalyst(s) to potassium-containing catalyst(s).

PROCESS FOR PREPARING THREE DIMENSIONAL POROUS SCAFFOLD AND THE THREE DIMENSIONAL POROUS SCAFFOLD FORMED THEREOF

The present invention discloses a single-step process for the formation of a three dimensional porous scaffold,the process comprising of carrying out ring opening polymerization of a monomer under high internal phase emulsion mode in the presence of at least one catalyst selected from methanesulfonic acid and stannous octoate to form a three dimensional porous scaffold. Further, the present invention discloses a three dimensional porous scaffold comprising of a polymer, to form a three dimensional porous scaffold having a pore size in the range of 0.1-30 micrometer and a porosity in the range of 75%-95%. 1. A single-step process for preparing a three dimensional porous scaffold , the process comprising:carrying out ring opening polymerization of a monomer in a high internal phase emulsion mode in the presence of at least one catalyst selected from methanesulfonic acid and stannous octoate to form a three dimensional porous scaffold.2. The process as claimed in claim 1 , wherein the process is carried out optionally with a cross linking monomer.3. The process as claimed in claim 1 , wherein the high internal phase emulsion mode is formed by dispersing a hydrophobic compound in the monomer using an emulsifier.4. The process claim 1 , as claimed in claim 1 , wherein the methanesulfonic acid is present in an amount of 0.01-10 weight percent with respect to the monomer and the stannous octoate is present in an amount of 0.01-10 weight percent with respect to the monomer.5. The process as claimed in claim 1 , wherein the monomer is a cyclic monomer.6. The process as claimed in claim 1 , wherein the cyclic monomer is selected from a group comprising of a cyclic structure having 4-20 atoms preferably selected from lactone claim 1 , lactide and carbonate.7. The process as claimed in claim 1 , wherein the monomer is ε-caprolactone.8. The process as claimed in claim 2 , wherein the cross-linking monomer is bis(ε-caprolactone-4-yl).9. The process as claimed in claim 3 , wherein ...

STABLE TWO COMPONENT SPRAY FOAM COMPOSITIONS CONTAINING HYDROHALOOLEFIN PROPELLANT OR BLOWING AGENT

A formulation technology for low pressure two component polyurethane foam-funning compositions containing gaseous hydrohaloolefin blowing agents is described with improved storage stability and extended shelf-life. The “B”-side component of the formulations contain a gaseous hydrohaloolefin blowing agent and a polyol pre-mix, the polyol pre-mix comprising liquid blowing agent, polyol, and a catalyst containing at least one catalytic metal compound. 1. A two-component polyurethane spray foam-forming composition , comprising: a polyisocyanate; and', 'an optional “A”-side blowing agent; and, 'an “A”-side component comprising a polyol pre-mix; and', 'a gaseous “B”-side blowing agent comprising a hydrohaloolefin;', 'wherein the polyol pre-mix comprising comprises a polyol, a metal catalyst and a liquid “B”-side blowing agent; and', 'wherein the polyol pre-mix contains less than 1 wt. % nitrogen as determined by ASTM D 6979-14., 'a “B”-side component comprising2. The composition of claim 1 ,a wherein the “B”-side component consists essentially of;a polyol pre-mix; anda gaseous “B”-side blowing agent comprising a hydrohaloolefin;wherein the polyol pre-mix consists essentially of a polyol, a metal catalyst, and a liquid “B”-side blowing agent.35-. (canceled)6. The composition of claim 1 , wherein the “A”-side blowing agent comprises a gaseous blowing agent claim 1 , the gaseous blowing agent selected from the group consisting of a hydrohaloolefin claim 1 , carbon dioxide claim 1 , nitrogen claim 1 , compressed air claim 1 , a hydrocarbon claim 1 , a halogenated hydrocarbon claim 1 , a hydrofluorocarbon claim 1 , and combinations thereof.7. The composition of claim 6 , wherein the gaseous blowing agent comprises the hydrohaloolefin claim 6 , and the hydrohaloolefin selected from the group consisting of 1 claim 6 ,3 claim 6 ,3 claim 6 ,3-tetrafluoropropene (HFO 1234ze); 2 claim 6 ,3 claim 6 ,3 claim 6 ,3-tetrafluoroprop-1-ene (HFO 1234yf); 1 claim 6 ,1 claim 6 ,3 claim 6 ,3- ...

Production of fine-pored pmma foams using nucleating agents

Fine-cell PMMA foams are produced using a production process including nucleators in addition to suitable blowing agents. It was found that, surprisingly, a simple-to-produce stable PMMA foam having very fine cells and very good properties can be produced.

Optical enhancing durable anti-reflective coating

Disclosed herein are polysilsesquioxane based anti-reflective coating (ARC) compositions, methods of preparation, and methods of deposition on a substrate. In embodiments, the polysilsesquioxane of this disclosure is prepared in a two-step process of acid catalyzed hydrolysis of organoalkoxysilane followed by addition of tetralkoxysilane that generates silicone polymers with >40 mol % silanol based on Si-NMR. These high silanol siloxane polymers are stable and have a long shelf-life in the polar organic solvents at room temperature. Also disclosed are low refractive index ARC made from these compositions with and without additives such as porogens, templates, Si—OH condensation catalyst and/or nano-fillers. Also disclosed are methods and apparatus for applying coatings to flat substrates including substrate pre-treatment processes, coating processes including flow coating and roll coating, and coating curing processes including skin-curing using hot-air knives. Also disclosed are coating compositions and formulations for highly tunable, durable, highly abrasion-resistant functionalized anti-reflective coatings.

Heat-expandable microspheres, process for producing the same and application thereof

Heat-expandable microspheres having an almost spherical shape and high expansion performance and exhibiting good workability when mixed with a resin, a process for producing the heat-expandable microspheres, and applications thereof. The heat-expandable microspheres include a thermoplastic resin shell and a blowing agent encapsulated therein and vaporizable by heating. The thermoplastic resin is produced by polymerizing a polymerizable component containing a methacrylate monomer and a carboxyl-containing monomer, and optionally containing a nitrile monomer in an amount ranging from 0 to 30 parts by weight to 100 parts by weight of the total amount of the methacrylate monomer and the carboxyl-containing monomer. The blowing agent contains a hydrocarbon having at least 8 carbon atoms per molecule.

PROCESS FOR PRODUCING POROUS ALGINATE-BASED AEROGELS

The present invention relates to a process for preparing a porous material, at least comprising the steps of providing a mixture (I) comprising a water soluble polysaccharide, at least one compound suitable to react as cross-linker for the polysaccharide or to release a cross-linker for the polysaccharide, and water, and preparing a gel (A) comprising exposing mixture (I) to carbon dioxide at a pressure in the range of from 20 to 100 bar for a time sufficient to form a gel (A), and depressurizing the gel (A). Gel (A) subsequently is exposed to a water miscible solvent (L) to obtain a gel (B), which is dried. The invention further relates to the porous materials which can be obtained in this way and the use of the porous materials as thermal insulation material, for cosmetic applications, for biomedical applications or for pharmaceutical applications. 1: A process for preparing a porous material , comprising: (i) a water soluble polysaccharide,', '(ii) a compound suitable to react as cross-linker for the polysaccharide or to release a cross-linker for the polysaccharide, and', '(iii) water;, 'a) providing a mixture (I) comprising'} b1) exposing the mixture (I) to carbon dioxide at a pressure in a range of from 20 to 100 bar for a time sufficient to form a gel (A), and', 'b2) depressurizing the gel (A);, 'b) preparing a gel (A) by a process comprising'}c) exposing the gel (A) to a water miscible solvent (L) to obtain a gel (B); andd) drying of the gel (B).2: The process according to claim 1 , wherein the water soluble polysaccharide is selected from the group consisting of agar claim 1 , alginate claim 1 , carrageenan claim 1 , cellulose claim 1 , hyaluronic acid claim 1 , pectin claim 1 , starch claim 1 , xanthan gum claim 1 , modified cellulose claim 1 , chitin claim 1 , chitosan claim 1 , and a mixture thereof.3: The process according to claim 1 , wherein the water soluble polysaccharide is an alginate.4: The process according to claim 1 , wherein the preparing in ...

RESIN FOR PRODUCTION OF POROUS CERAMIC STEREOLITHOGRAPHY AND METHODS OF ITS USE

A ceramic resin is provided, along with its methods of formation and use. The ceramic resin may include a crosslinkable precursor, a photoinitiator, ceramic particles, and pore forming particles. The ceramic resin may be utilized to form a ceramic casting element, such as via a method that includes forming a layer of the ceramic resin; applying light onto the ceramic resin such that the photoinitiator initiates polymerization of the crosslinkable precursor to form a crosslinked polymeric matrix setting the ceramic particles and the pore forming particles; and thereafter, heating the crosslinked polymeric matrix to a first temperature to burn out the pore forming particles. 120-. (canceled)21. A ceramic resin , comprising:a crosslinkable precursor;a photoinitiator;ceramic particles, wherein the ceramic particles comprise 50% to 90% by volume of the ceramic resin; andpore forming particles, wherein the photoinitiator is a UV photoinitiator that is configured to initiate polymerization of the crosslinkable precursor upon exposure to UV light at a temperature below 50° C. to form a crosslinked polymeric matrix setting the ceramic particles and the pore forming particles.22. The ceramic resin of claim 21 , wherein the pore forming particles comprise 0.1% to 25% by volume of the ceramic resin.23. The ceramic resin of claim 21 , wherein the pore forming particles comprise 10% to 25% by volume of the ceramic resin.24. The ceramic resin of claim 21 , wherein the pore forming particles comprise a material that becomes gaseous within a temperature range of 70° C. to 250° C.25. The ceramic resin of claim 24 , wherein the organic material comprises naphthalene claim 24 , a naphthalene-related compound claim 24 , an epoxy claim 24 , an acrylic claim 24 , cellulose claim 24 , polyvinyl alcohol claim 24 , aluminum acetylacetonate claim 24 , or a mixture thereof.26. The ceramic resin of claim 21 , wherein the pore forming particles have an average diameter of 1 μm to 100 μm.27. The ...

Process for producing porous materials

A process for preparing a porous material involves at least the steps of providing a mixture (I) containing a composition (A), which contains components suitable to from an organic gel, and a solvent (B); reacting the components in the composition (A) in the presence of the solvent (B) to form a gel; and drying of the gel. The composition (A) contains a catalyst system (CS), which contains at least a catalyst component (C1) selected from ammonium salts and phosphonium salts, and an acid with a phosphor containing acid group as a catalyst component (C2). Porous materials can be obtained in this way and the porous materials can be used as thermal insulation material and in vacuum insulation panels and vacuum insulation systems, in particular in interior or exterior thermal insulation systems as well as for insulation of refrigerators and freezers and in water tank or ice maker insulation systems. 115-. (canceled)16: A process for preparing a porous material , at least comprising: (i) a composition (A) comprising components suitable to form an organic gel, and', '(ii) a solvent (B);, 'a) providing a mixture (I) comprisingb) reacting the components in the composition (A) in the presence of the solvent (B) to form a gel; andc) drying of the gel obtained in b); (i) a catalyst component (C1) selected from the group consisting of an ammonium salt and a phosphonium salt, and', '(ii) an acid comprising a phosphor containing acid group as a catalyst component (C2);, 'wherein the composition (A) comprises a catalyst system (CS) at least comprisingwherein the composition (A) comprises at least one polyfunctional isocyanate as component (a1), comprises at least one aromatic amine as component (a2), comprises water as component (a3), and comprises at least one further catalyst as component (a4), andwherein the component (a4) is at least one selected from the group consisting of primary, secondary, and tertiary amines; triazine derivatives; metal-organic compounds; metal chelates; ...

METHOD FOR PRODUCING POLYURETHANE FOAM

A method for producing a polyurethane foam. The method comprises a step of spraying a polyurethane foam stock solution comprising a polyisocyanate component and a polyol component in a mist form by using compressed gas. The compressed gas is heated and kept at a temperature of not less than 40° C. 1. A method for producing a polyurethane foam , wherein the method comprises a step of spraying a polyurethane foam stock solution comprising a polyisocyanate component and a polyol component in a mist form by using compressed gas , wherein the compressed gas in the step is heated and kept at a temperature of not less than 40° C.2. The method for producing a polyurethane foam according to claim 1 , wherein an ambient temperature at which the step is performed is not more than 15° C.3. The method for producing a polyurethane foam according to claim 1 , wherein the temperature of the polyurethane foam stock solution is 30 to 60° C.4. The method for producing a polyurethane foam according to claim 2 , wherein the temperature of the polyurethane foam stock solution is 30 to 60° C. This application is a U.S. nonprovisional utility application, filed under 35 U.S.C. § 119. This application claims priority to European Application No. EP 19210100.4, which was filed on Nov. 19, 2019, and to Japanese Patent Application No. 2019-173945, which was filed on Sep. 25, 2019. The contents of each are incorporated by reference into this specification.The present invention relates to a method for producing a polyurethane foam. In particular, the present invention relates to a method for producing a polyurethane foam in which the same polyurethane foam stock solution can be used throughout the year without adjusting reactivity by, for example, changing the amount of a catalyst.Among resin foams, a polyurethane foam (also referred to as a “urethane foam”) has an excellent heat insulation performance, and is widely used as a foam thermal insulator. A polyurethane foam is generally produced by ...

Closed cell foam sheet

The closed cell foam sheet of the present invention is a closed cell foam sheet having a thickness of 0.05 to 0.35 mm, wherein the foam sheet has a 25% compressive stress of 30 to 100 kPa, a tensile strength in MD of 3,000 to 15,000 kPa, a tensile strength in TD of 1,800 to 9,800 kPa, and a recovery time of 0.1 seconds or less after the foam sheet is pressed for 5 seconds by 5 N and then released.

CELLULOSE ACETATE AEROGELS

Mechanically strong, biodegradable and reusable aerogels are disclosed, which can be made with a cross-linked cellulose ester, and which exhibit a low density and high porosity. The aerogels disclosed herein may be used as sorbent materials and can be modified with a hydrophobic and/or oleophilic agent. 1. An aerogel comprising a cross-linked cellulose ester having a degree of substitution of from about 1.0 to about 2.8 ,wherein the aerogel has a bulk density of from about 1 mg/cc to about 500 mg/cc, and{'sub': 1', '10, 'wherein the cellulose ester is a (C-C)alkyl-C(O)-functionalized cellulose.'}2. The aerogel of claim 1 , wherein the degree of substitution of the cellulose ester is from about 1.8 to about 2.6.3. The aerogel of claim 1 , wherein the cellulose ester is cellulose acetate claim 1 , cellulose acetate propionate claim 1 , cellulose acetate butyrate or a combination thereof.4. The aerogel of claim 1 , wherein the cellulose ester is cross-linked via an ester claim 1 , ether or urethane linkage.5. The aerogel of claim 4 , comprising a cross-linking agent at from about 1 wt. % to about 15 wt. %.6. The aerogel of claim 4 , comprising the cellulose ester at from about 85 wt. % to about 99 wt. %.7. The aerogel of claim 1 , wherein the cross-linking agent is selected from at least one of a C-Caromatic anhydride claim 1 , a (C-C)cycloalkyl anhydride claim 1 , a bis(halo(C-C)alkyl)-(C-C)aromatic claim 1 , a bis(halo(C-C)alkyl)(C-C)cycloalkyl claim 1 , a bis(isocyanato(C-C)alkyl)(C-C)aromatic claim 1 , or a bis(isocyanato(C-C)alkyl)(C-C)cycloalkyl.8. The aerogel of claim 7 , wherein the cross-linking agent is PMDA.9. The aerogel of claim 1 , wherein the aerogel has the capacity to absorb at least about 20 grams of water per gram of aerogel.10. The aerogel of claim 1 , further comprising a hydrophobic agent.11. The aerogel of claim 10 , wherein the hydrophobic agent is selected from at least one of a C-Calkyl silane claim 10 , a C-Ccycloalkyl silane claim 10 , an ...

METHODS OF FORMING POLYOL PREMIXES AND FOAMABLE COMPOSITIONS AND FOAMS FORMED THEREFROM

This invention relates to thermoset, thermal insulating panel, pour-in-place and pour-in-place foams having desirable and unexpectedly low thermal conductivity, and to compositions, method and systems which use and/or are used to make such foams comprising: (a) providing thermosetting foam forming component and a blowing agent for forming predominantly closed cells in the foam, wherein the blowing agent comprises: (i) cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzzm(Z)) and cyclopentane, with the HFO-1336mzzm(Z) and cyclopentane in the blowing agent together comprising at least about 50% by weight of the total of all components in the blowing agent and (ii) the weight ratio of HFO-1336mzzm(Z) to cyclopentane in the blowing agent is from about 45:55 to less than 68:32 and (b) forming foam from said provided foamable composition. 1. A polyol premix having improved resistance to frothing comprising:(a) one or more polyols; and(b) a blowing agent comprising at least about 70% by weight of transHFCO-1233zd and a physical co-blowing agent having defrothing properties selected from the group consisting of cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzzm(Z) or cis-1336mzzm), methylal, methyl formate, glycerine, trans dichloroethylene (tDCE) and mixtures of two or more of these, wherein the amount of said defrothing co-blowing is effective to reduce the de-frothing time of the polyol premix by at least about 30%.2. A polyol premix having improved resistance to frothing comprising:(a) one or more polyols; and(b) a blowing agent comprising at least about 20% to about 75% by weight of cis1336mzzm and a physical co-blowing agent having defrothing properties comprising transHFCO-1233zd in an amount of effective to reduce the de-frothing time of the polyol premix by at least about 20 relative percent.3. The polyol premix of wherein the amount of said defrothing co-blowing is effective to reduce the de-frothing time of the polyol premix by at least about at least about 50%.4. The ...

System for covering hydrocarbon liquids and method of forming same

A method of forming an element to float at least partially on a surface of an at least partially liquid hydrocarbon mixture. The method includes mixing a polymer resin and a foaming agent together in preselected proportions to provide a material mixture, and heating the material mixture, to at least partially liquefy it. The material mixture is injected into a mold cavity configured to define the element's exterior surface in a series of at least three steps, commencing with an initial step. In each step, the material mixture is injected over a predetermined time period at a predetermined velocity and under a predetermined pressure. Each predetermined velocity in the steps following the initial step is less than the predetermined velocity in an immediately preceding step thereof. Each predetermined pressure in the steps following the initial step is less than the predetermined pressure in the immediately preceding step thereof.

INJECTABLE HEAT SINK

A heat sink arrangement includes a housing associated with an electronic heat source. The housing has a cavity adjacent to the heat source. A thermally conductive, electrically insulating foam heat sink is disposed in the cavity and draws heat out of the heat source. The foam heat sink may be formed of a two-part epoxy. 1. A heat sink arrangement , comprising:an electronic heat source;a housing associated with the heat source, the housing having a cavity adjacent to the heat source; anda foam heat sink disposed in the cavity and configured to draw heat out of the heat source.2. The heat sink arrangement of wherein the housing contains the heat source.3. The heat sink arrangement of wherein the electronic heat source comprises a transistor claim 1 , a power amplifier claim 1 , and/or an integrated circuit.4. The heat sink arrangement of wherein the heat sink is thermally conductive and electrically insulating claim 1 , and substantially fills the cavity.5. The heat sink arrangement of wherein the heat sink is formed out of a two-part epoxy.6. The heat sink arrangement of wherein the heat sink is configured to have been expanded within the cavity by carbon dioxide.7. The heat sink arrangement of wherein gaseous carbon dioxide is trapped within the heat sink.8. A method of removing heat from an electronic heat source that is associated with a housing having a cavity claim 1 , the method comprising:blowing a liquid foam into the cavity;waiting for the liquid foam to cure into a solid or semi-solid foam inside the cavity;operating the electronic heat source; andusing the solid or semi-solid foam in the cavity to draw heat out of the electronic heat source.9. The method of wherein the cavity is adjacent to the heat source.10. The method of further comprising:providing a first container containing a first epoxy part and a first blowing agent part;providing a second container containing a second epoxy part and a second blowing agent part; andmixing contents of the first ...

CLEANING IMPLEMENT COMPRISING A MODIFIED OPEN-CELL FOAM

The present invention relates to a cleaning implement that includes a melamine-formaldehyde foam. The melamine-formaldehyde foam cleaning implement has a d90/d10 ratio above 1.65 and a compression deflection force above 3.25 psi. Additionally the present invention encompasses processes for making and methods for cleaning hard surfaces with a cleaning implement according to the present invention.

METHOD OF RECYCLING INSOLE SCRAP, PULVERIZED INSOLE SCRAP, AND FOAM FOR SHOE MANUFACTURED THEREBY

A method of recycling a large amount of insole scrap stack is proposed. The method includes forming a plate-shaped stack made of flat-plate-shaped foam and woven fabric, separating an insole scrap stack from the plate-shaped stack, and forming a pulverized insole scrap having an average diameter of 0.05 to 0.7 mm by cool-pulverizing or freeze-pulverizing the insole scrap stack at 10° C. or less. The pulverized insole scrap may be used for manufacturing foam.