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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 12798. Отображено 102.
25-09-1991 дата публикации

Polyester resin blends

Номер: EP0000447831A3
Автор: Nan-I, Liu
Принадлежит:

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25-07-1990 дата публикации

Emulsion copolymers

Номер: EP0000379086A3
Принадлежит:

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08-03-2012 дата публикации

Refrigerator interior liner

Номер: US20120059110A1
Принадлежит: Total Petrochemicals Research Feluy SA

The present invention is a refrigerator interior liner made of a rubber modified monovinylaromatic polymer composition comprising: a) a monovinylaromatic polymer matrix having an average molecular weight in weight Mw above 150,000 g/mol, b) rubber particles dispersed therein, said particles having: a volume median particle size (RPS volume) of about 8.5 μm, a monomodal distribution with essentially no shoulder, a low-to-moderate crosslinking of the rubber expressed as a swell index (SI) above 13.8, a rubber phase volume fraction (RPVF) of at least 39%, c) a moderate amount of low- Mw plasticizers, defined as the weight fraction of solubles in methanol, and such that the weight ratio c/(a+b+c) ranges from 0 to 5%. The present invention is also a process for preparing the above composition comprising: a) forming a polymerizable mixture comprising at least one monovinylaromatic monomer and optionally one or more comonoiners, b) dissolving at least a viscous rubber of essentially linear structure in said polymerizable mixture to form a rubber containing polymerizable solution, c) contacting a free radical initiator and a chain transfer agent with the polymerizable mixture at conditions whereby phase inversion subsequently occurs, wherein the chain transfer agent is capable to produce an increase of the rubber to PS phase viscosity ratio within the inversion reactor, d) continuing the polymerization of the solution obtained at step c), optionally in the presence of a free radical initiator, until a monovinylaromatic polymer matrix having rubber particles dispersed therein is obtained.

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29-03-2012 дата публикации

Ethylene resin composition, sealing material for solar cell, and solar cell module utilizing the sealing material

Номер: US20120073631A1
Принадлежит: Mitsui Chemicals Inc

The purpose of the present invention is to provide an ethylene resin composition which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m 3 . b) The melting peak temperature is 90 to 125 DEG C as determined by DSC. c) The melt flow rate (MFR2) is 0.1 to 100 g/10 minutes as measured at 190° C. and a load of 2.16 kg in accordance with JIS K-6721. d) The Mw/Mn ratio is 1.2 to 3.5. e) The content of metal residues is 0.1 to 50 ppm.

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19-04-2012 дата публикации

Thermoplastic elastomer and molded product produced from the same

Номер: US20120095135A1

A flexible, abrasion-resistant, dry to the touch thermoplastic elastomer made of a hydrogenated block copolymer having a weight-average molecular weight of 80,000 to 1,000,000, an olefin-based crystalline resin, a hydrocarbon-based softening agent for rubbers and an acryl-modified organopolysiloxane. At least the block copolymer and the organopolysiloxane are dynamically heat-treated in the presence of an organic peroxide.

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10-05-2012 дата публикации

Golf ball compositions

Номер: US20120115635A1
Принадлежит: Acushnet Co

Disclosed herein are hard and flexible compositions, i.e., compositions which have a flexural modulus that is less than the value that is expected based on the composition's hardness. The compositions preferably have a hardness/modulus relationship represented by the formula H≧ 11.889 Ln( M )+47, where H is the hardness of the composition, in JIS-C, and M is the flexural modulus of the composition, in ksi; or a softness/stiffness relationship represented by the formula if M <110, then H ≧8.5218 Ln( M )+ 32.5 if M≧110, then H≧72.5, where H is the hardness of the composition, in Shore D, and M is the flexural modulus of the composition, in ksi.

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05-07-2012 дата публикации

Flameproof Thermoplastic Resin Composition

Номер: US20120172504A1
Принадлежит: Cheil Industries Inc

A thermoplastic resin composition includes a polycarbonate resin/impact modifier system, a polystyrene resin having a predetermined molecular weight, and a phosphorus flame retardant. The impact modifier includes a particular rubber particle size and is formed of particular monomers. The composition can exhibit improved flame retardancy, impact resistance, fluidity, and appearance.

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12-07-2012 дата публикации

Reinforced thermoplastic resin composition and molded article

Номер: US20120178860A1
Принадлежит: Individual

The reinforced thermoplastic resin composition of the present invention includes: 50 to 90% by weight of a polycarbonate resin (A); 10 to 50% by weight of a graft copolymer mixture (B) (provided that a total amount of the component (A) and the component (B) accounts for 100% by weight) which is obtained by graft-polymerizing an aromatic alkenyl compound monomer unit (a) and a vinyl cyanide compound monomer unit (b) onto a rubber polymer (B1); and 6 to 22 parts by weight of an inorganic filler (D) which has been surface-treated with a water-soluble polyamide, relative to the total of 100 parts by weight of the polycarbonate resin (A) and the graft copolymer mixture (B). There is provided a reinforced thermoplastic resin composition exhibiting excellent moldability, generates a minimal amount of gas during molding, and also being capable of improving the rigidity of the resulting molded article and the impact resistance when dropping the product.

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02-08-2012 дата публикации

Stabilized humidity-curable polymers having 2-phase curing kinetics

Номер: US20120196986A1
Принадлежит: Wacker Chemie AG

The invention relates to stabilized mixtures (M) comprising a polymer (P) that can be humidity-cured into a cured polymer (PV), wherein the polymer (P) comprises hydrolysable silane groups at least one location not corresponding to the two ends of the main polymer chain, and silane (W) having at least one hydrolysable group as a water catcher, reacting faster with water at 25° C. and 1 bar than the humidity-curing polymer (P), and to a method for curing polymers (P) in mixtures (M) by means of water and particular silanes (W).

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23-08-2012 дата публикации

Polyolefin polylactic acid in-situ blends

Номер: US20120214944A1
Автор: Fengkui Li, John Ashbaugh
Принадлежит: Fina Technology Inc

Polymeric compositions and methods of forming the same are described herein. The methods generally include contacting a polyolefin and a lactide in the presence of a catalyst within an extruder under conditions sufficient to polymerize the lactide and form a polymeric composition including polyolefin and polylactic acid.

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30-08-2012 дата публикации

Pressure sensitive adhesive comprising blend of synthetic rubber and functionalized synthetic rubber bonded to an acylic polymer

Номер: US20120216953A1
Принадлежит: 3M Innovative Properties Co

A pressure sensitive adhesive composition is described comprising unfunctionalized (e.g. polyisobutylene) synthetic rubber and an acrylic polymer having functionalized polyisobutylene polymer bonded to the acrylic polymer. In some embodiments, the functionalized polyisobutylene polymer has a first functional group hydrogen bonded with a second functional group present in the acrylic polymer backbone. In other embodiments, the functionalized polyisobutylene polymer is covalently bonded to the acrylic polymer backbone. Also described are adhesive articles, such as a tape, methods of adhesively bonding, and methods of making a pressure sensitive adhesive.

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04-10-2012 дата публикации

Stabilizer composition for filled polymers and nanocomposites

Номер: US20120252931A1
Автор: Rudolf Pfaendner
Принадлежит: BASF SE

The present invention relates to a stabilizer composition comprising a phenolic antioxidant and/or a processing stabilizer together with selected glycidyl(meth)acrylate copolymers and a filled thermoplastic polymer, in particular a nanocomposite. Further aspects of the invention are a process for the stabilization of filled thermoplastic polymers, in particular nanocomposites with a phenolic antioxidant and/or a processing stabilizer together with selected glycidyl(meth)acrylate copolymers and the use of such a composition for the stabilization of filled thermoplastic polymers, in particular nano-composites.

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22-11-2012 дата публикации

Flame retardant bio-based polymer blends

Номер: US20120296020A1
Принадлежит: SABIC INNOVATIVE PLASTICS IP BV

Polycarbonate compositions having flame retardant properties and improved impact resistance are disclosed, together with methods for preparing the same.

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29-11-2012 дата публикации

Malodor Absorbent Polymer and Fiber

Номер: US20120301595A1
Принадлежит: Cellresin Technologies LLC

Thermoplastic polyolefin polymer composition, polymer chip, fiber, woven or nonwoven fabric, film, closures, laminates can comprise a polymer, a polymer and a nonvolatile polymer-compatible carboxylic acid. Thermoplastic polyolefin polymer composition can also comprise a polymer, a cyclodextrin-modified polymer and a nonvolatile polymer-compatible carboxylic acid. The carboxylic acid moiety of the polymer composition can react with basic materials in the polymer environment and reduce release of the basic material. The cyclodextrin can act to absorb or trap other contaminants or odors in the environment.

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06-12-2012 дата публикации

Polyesters with styrene copolymers

Номер: US20120309889A1
Принадлежит: BASF SE

A thermoplastic molding composition containing A) at least one polyester, B) optionally one polycarbonate, C) a copolymer made of c 1 ) styrene or of substituted styrenes of the formula I c 2 ) at least one unsaturated nitrile, D) a copolymer made of d 1 ) structural units deriving from one or more vinylaromatic monomers, d 2 ) structural units deriving from one or more vinyl cyanides, d 3 ) structural units deriving from one or more dicarboxylic anhydrides, and d 4 ) optionally structural units deriving from other copolymerizable monomers.

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20-12-2012 дата публикации

Method for producing hybrid particles

Номер: US20120322943A1
Принадлежит: EVONIK NANORESINS GMBH

The invention relates to a method for producing hybrid-particles containing polymer and SiO 2 -particles, wherein a) in a first polymerization step in aqueous medium a water-insoluble phase containing one or more monomeric and colloidal SiO 2 -particles having an average particle diameter of 1 to 150 nm are polymerized, and b) in a second polymerization step in aqueous medium one or more monomers are polymerized in the presence of the polymer obtained in the first polymerization step.

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27-12-2012 дата публикации

Hot melt adhesive compositions including olefinic polymer blends and articles including the same

Номер: US20120328805A1
Автор: Kevin Davis
Принадлежит: HB Fuller Co

A hot melt adhesive composition that includes a non functionalized amorphous poly alpha olefin polymer, a second polymer selected from the group including polypropylene homopolymers, polypropylene copolymers and combinations there of, a functionalized wax and a second wax.

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11-04-2013 дата публикации

POLYMER COMPOSITION FOR W&C APPLICATION WITH ADVANTAGEOUS ELECTRICAL PROPERTIES

Номер: US20130087362A1
Принадлежит: Borealis AG

The invention relates to a polymer composition with improved DC electrical properties, to the use of the composition for producing a cable layer and to a cable surrounded by at least one layer comprising the polymer composition. 1. A power cable comprising a conductor surrounded by at least an inner semiconductive layer , an insulation layer and an outer semiconductive layer , in that order , wherein at least one of the layers comprises a polymer composition comprising(a) a polyolefin which is other than low density polyethylene (LDPE) and(b) a second polyolefin which is different from the polyolefin (a).2. The cable according to claim 1 , wherein the inner semiconductive layer comprises a first semiconductive composition claim 1 , the insulation layer comprises an insulation composition and the outer semiconductive layer comprises a second semiconductive composition and wherein the insulation composition of the insulation layer comprises the polymer composition.3. The cable according to claim 1 , wherein the polymer composition has an electrical conductivity of 160 fS/m or less claim 1 , when measured according to DC conductivity method (1) using a 1 mm thick plaque sample as described under “Determination Methods”.4. The cable according to claim 1 , wherein the amount of the polyolefin (a) is 0.1 to 99.9 wt % claim 1 , based on the combined weight of the polyolefin (a) and the second polyolefin (b).5. The cable according to claim 1 , wherein the amount of the second polyolefin (b) is 0.1 to 99.9 wt % claim 1 , based on the combined weight of the polyolefin (a) and the second polyolefin (b).6. The cable according to claim 1 , wherein the polyolefin (a) is a polyethylene polymerised in the presence of an olefin polymerisation catalyst and selected from an ethylene homopolymer or a copolymer of ethylene with one or more comonomer(s); or a homo- or copolymer of C3-20 alpha-olefin which is selected from a propylene homopolymer claim 1 , a random copolymer of propylene ...

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18-04-2013 дата публикации

Cross-Linked Polyolefin Composition

Номер: US20130096261A1
Принадлежит: Basell Poliolefine Italia, S.r.l.

A cross-linked composition, obtained by cross-linking polyolefin composition comprising, all percentages being by weight: 2. The polyolefin composition of claim 1 , wherein the intrinsic viscosity [η] of the fraction soluble in xylene at room temperature of component B) of the polyolefin composition (I) is at least 3 dl/g.3. A cross-linked composition claim 1 , obtained by cross-linking the polyolefin composition of .4. The cross-linked composition of claim 1 , obtained by blending the polyolefin composition of with a cross-linking additive and heating the thus obtained blend at a temperature above the melting temperature of component A).5. The cross-linked polyolefin composition of claim 4 , obtained by using a cross-linking additive comprising a free radical initiator and a cross-linking co-agent.6. The cross-linked polyolefin composition of claim 5 , obtained by using a cross-linking additive wherein the free radical initiator is an organic peroxide and the cross-linking co-agent is selected from divinylbenzene claim 5 , ethylvinylbenzene claim 5 , triallyl cyanurate claim 5 , tryallyl isocyanurate claim 5 , 1 claim 5 ,2-polybutadiene claim 5 , acrylates claim 5 , methacrylates and furan derivatives.7. Manufactured articles comprising the cross-linked polyolefin composition of .8. The cross-linked composition of claim 4 , wherein the blend is heated to a temperature from 160 to 250° C.9. The manufactured articles as claimed in selected from wire and cable sheath claim 7 , auto interior skins claim 7 , synthetic leather claim 7 , or extruded profiles. This application is the U.S. national phase of International Application PCT/EP2011/060564, filed Jun. 23, 2011, claiming priority to European Patent Application 10167871.2 filed Jun. 30, 2010, and the benefit under 35 U.S.C. 119(e) of U.S. Provisional Application No. 61/401,037, filed Aug. 6, 2010; the disclosures of International Application PCT/EP2011/060564, European Patent Application 10167871.2 and U.S. ...

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02-05-2013 дата публикации

Fluoroelastomer composition

Номер: US20130109797A1
Принадлежит: Solvay Specialty Polymers Italy SpA

The invention pertains to a (per)fluoroelastomer composition comprising: at least one (per)fluoroelastomer [fluoroelastomer (A)]; and from 0.1 to 30 weight parts, per hundred parts of fluoroelastomer (A), of at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain R t ), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain R a ) comprising recurring units of formula: —(CR 1 R 2 —CR 3 R 4 )— wherein R 1 , R 2 , R 3 , R 4 , equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C 1 -C 6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

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09-05-2013 дата публикации

POLYMER COMPOSITION

Номер: US20130115461A1
Принадлежит: INEOS EUROPE AG

A composition is disclosed comprising a polyethylene powder having: (a) a specific density of 930 kg/mor less; (b) a melt index MIgreater than 0.5 g/10 min; (c) a ratio of HLMI/MIof less than 25, where HLMI is high load melt index measured under a load of 21.6 kg; (d) a bulk density of at least 350 kg/m; and (e) a d50 greater than 500 μm, and absorbed within said powder at least 1 wt % of a liquid additive. 112-. (canceled)13. Composition comprising a polyethylene powder having:{'sup': '3', '(a) a specific density of 930 kg/mor less;'}{'sub': '2', '(b) a melt index MIgreater than 0.5 g/10 min;'}{'sub': '2', '(c) a ratio of HLMI/MIof less than 25, where HLMI is high load melt index measured under a load of 21.6 kg;'}{'sup': '3', '(d) a bulk density of at least 350 kg/m; and'}(e) a d50 greater than 500 μm, and absorbed within said powder at least 1 wt % of a liquid additive.14. Composition according to claim 13 , wherein the polyethylene powder has an MIof at least 3 g/10 min.15. Composition according to claim 13 , wherein the polyethylene powder has a specific density in the range 910-930 kg/m.16. Composition according to claim 13 , wherein the polyethylene powder has a bulk density in the range 400 to 550 kg/m.17. Composition according to claim 13 , wherein the polyethylene powder has a ratio of HLMI/MIof between 10 and 22.18. Composition according to claim 13 , wherein the polyethylene powder has a porosity of at least 0.04 cm/g for pores smaller than 2 μm.19. Composition according to claim 13 , wherein the polyethylene powder has a d50 in the range 500-1500 μm.20. Composition according to claim 13 , wherein the polyethylene powder has a level of particles having a diameter greater than 1400 μm less than 5 wt %.21. Composition according to claim 13 , wherein the polymer powder has been obtained directly from the polymerisation reactor without any pelletisation claim 13 , grinding or sieving operations.22. Process for incorporating a liquid additive into a first ...

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09-05-2013 дата публикации

POLYMERS BASED ON GRAFTED POLYOLEFINS

Номер: US20130116374A1
Принадлежит:

The present invention relates to a polymer (P1) obtainable by reaction of at least one component a) with at least one component b), wherein 1. A polymer (P1) obtainable by reaction of at least one component a) with at least one component b) , whereina) is at least one polyolefin (A), which is grafted with at least one compound (G), andb) is at least one compound (B) containing at least two epoxy groups.2. The polymer (P1) according to claim 1 , whereinthe polyolefin (A) of component a) is selected from polypropylene (PP), PP-copolymers, polyethylene (PE), or metallocene based polyolefins, orthe compound (G) of component a) is selected from acrylic acid, methyacrylic acid, maleic acid, fumaric acid, itaconic acid, crotonic acid, citraconic acid, maleic anhydride, itaconic anhydride, crotonic anhydride or citraconic anhydride.3. The polymer (P1) according to claim 2 , wherein polyethylene (PE) is low density polyethylene (LDPE) claim 2 , linear low density polyethylene (LLDPE) or high density polyethylene (HDPE).4. The polymer (P1) according to claim 1 , wherein the compound (B) of component b) is a polymerization product ofb1) at least one epoxy-functional (meth)acrylic monomer andb2) at least one styrenic and/or (meth)acrylic monomer.5. The polymer (P1) according to claim 1 , wherein the component a) reacts via a functional group selected from acid anhydride (−CO—O—CO—) claim 1 , —COOH claim 1 , —OH or a salt thereof with an epoxy group of compound (B) to obtain the polymer (P1).6. A composition containing{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'at least one polymer (P1) according to , and'}at least one further polymer (P2).7. The composition according to claim 6 , whereinthe polymer (P2) is a polyolefin (C).8. The composition according to claim 7 , wherein the polyolefin (C) has the same definition as polyolefin (A) according to component a) of polymer (P1).9. The composition according to containing 0.2 to 10 wt.-% of polymer (P1) related to the amount of ...

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09-05-2013 дата публикации

Thermoplastic composition, method of producing the same, and articles made therefrom

Номер: US20130116382A1
Принадлежит: Rohm and Haas Co

The instant invention provides a thermoplastic composition, method of producing the same, and articles made therefrom. The thermoplastic composition according to present invention comprises the melt blending product of: (a) from 10 to 75 percent by weight of a continuous phase, based on the total weight of the thermoplastic composition, wherein said continuous phase comprises one or more thermoplastic polymers; and (b) from 25 to 90 percent by weight of a dispersed phase comprising one or more core/shell polymer particles, based on the total weight of the thermoplastic composition, wherein said one or more core/shell polymer particles comprise a crosslinked elastomer core and a thermoplastic shell and wherein said core/shell polymer has an average particle size diameter in the range of from 70 to 10,000 nm.

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30-05-2013 дата публикации

POLYETHYLENE COMPOSITIONS, METHODS OF MAKING THE SAME, AND ARTICLES PREPARED THEREFROM

Номер: US20130137828A1
Принадлежит: Dow Global Technologies LLC

The invention is related to compositions suitable for the fabrication of pipes, and other articles, with excellent performance properties. The invention provides a composition, comprising a blend, wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer, and the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, and the low molecular weight ethylene-based interpolymer is heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.940 g/cc to 0.955 g/cc, and a melt index (I2) from 6 g/10 min to 50 g/10 min. The blend has a single peak in an ATREF profile eluting above 30° C., and has a coefficient of viscosity average molecular weight (CMv) less than −0.0032 in the log (calculated Mv) versus elution temperature, said CMv calculated in the range of elution temperatures from 70° C. to 90° C. The Mv is the viscosity average molecular weight. 171-. (canceled)72. A method of preparing a composition , said method comprising polymerizing the high molecular weight ethylene-based interpolymer and the low molecular weight ethylene-based interpolymer in one reactor , and in the presence of two Ziegler-Natta catalyst systems , and wherein the composition comprises a blend , wherein said blend comprises a high molecular weight ethylene-based interpolymer and a low molecular weight ethylene-based interpolymer , andwherein the high molecular weight ethylene-based interpolymer is a heterogeneously branched linear or a homogeneously branched linear ethylene-based interpolymer, and has a density from 0.922 g/cc to 0.929 g/cc, and a high load melt index (I21) from 0.2 g/10 min to 1.0 g/10 min, andwherein the low molecular weight ...

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06-06-2013 дата публикации

POLY(PHENYLENE ETHER) ARTICLES AND COMPOSITIONS

Номер: US20130142976A1
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

A composition useful for the injection molding of fluid engineering parts includes specific amounts of a high molecular weight poly(phenylene ether), a polystyrene, and glass fibers. The composition provides improved hydrostability and reduces or eliminates the butadiene monomer that is present in comparative compositions containing rubber-modified polystyrene. Fluid engineering articles prepared from the composition are described. 1. A fluid engineering article comprising a composition comprising:about 25 to about 50 weight percent of a poly(phenylene ether);about 25 to about 55 weight percent of a polystyrene; andabout 5 to about 35 weight percent of glass fibers;wherein the poly(phenylene ether) has a weight average molecular weight of at least 70,000 atomic mass units after being compounded with the polystyrene and the glass fibers;wherein the composition comprises less than or equal to 1 milligram butadiene per kilogram of composition; andwherein all weight percents are based on the total weight of the composition, unless a different weight basis is specified.2. The fluid engineering article of claim 1 , selected from the group consisting of pipes claim 1 , pipe liners claim 1 , pipe junctions claim 1 , hot and cold water device components claim 1 , boiler components claim 1 , central heating device components claim 1 , combined hot water and central heating device components claim 1 , heat exchanger components claim 1 , heat pump housings claim 1 , water pump housings claim 1 , filter housings claim 1 , water meter housings claim 1 , water valves claim 1 , impellers claim 1 , and faucet spouts.3. The fluid engineering article of claim 1 , wherein the poly(phenylene ether) has a weight average molecular weight of 70 claim 1 ,000 to about 110 claim 1 ,000 atomic mass units after being compounded with the polystyrene and the glass fibers.4. The fluid engineering article of claim 1 , wherein the poly(phenylene ether) has a weight average molecular weight of about ...

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20-06-2013 дата публикации

IMPACT MODIFIED POLYCARBONATE COMPOSITIONS

Номер: US20130158183A1
Принадлежит: Styrolution (Jersey) Limited

The invention relates to thermoplastic polycarbonate compositions which are impact-modified with ABS type polymers, said polycarbonate compositions being impact-modified with ABS type polymers are characterized by their excellent low temperature ductility, good processing properties expressed by relatively high melt volume rate (MVR) and good hydrolytic stability. 1. Resin composition comprising:A) 5 to 99 wt.-parts of at least one aromatic polycarbonate, [ {'sub': '50', 'a butadiene rubber latex (B1) having a weight median particle diameter Dof 100 to 250 nm, and a gel content from 30 to 80% by weight, and'}, 'emulsion polymerization of styrene and acrylonitrile in the weight ratio 95:5 to 50:50, whereby styrene and/or acrylonitrile wholly or partially can be replaced by copolymerizable monomers, onto at least two rubber latices, comprising, {'sub': '50', 'a butadiene rubber latex (B2) having a weight median particle diameter Dof more than 350 nm, and a gel content of less than 75% by weight,'}], 'B) 1 to 95 wt.-parts of at least one graft rubber copolymer which is obtained byC) optionally 0 to 50 wt.-parts of one or more (co)polymer of at least one monomer selected from the group consisting of vinyl aromatic monomers, vinyl cyanides and unsaturated carboxylic acids and derivatives thereof, {'sub': '50', 'the weight median particle diameter Dof the mixture of the butadiene rubber latices (B1) and (B2) is larger than 350 nm and is less than 1000 nm, and the amount of the butadiene rubber latex polymer (B1) in the graft rubber copolymer B) is 1 to 49% by weight (B1) and the amount of the butadiene rubber latex polymer (B2) is 51 to 99% by weight, based on the total weight of the rubber latex polymers in the graft rubber copolymer B).'}, 'D) optionally 0 to 25 wt.-parts of conventional polymer additives, wherein'}2. Resin composition according to claim 1 , wherein the rubber latices of graft rubber copolymer B) consist of butadiene rubber latex polymer (B1) and ...

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27-06-2013 дата публикации

New composition and use thereof

Номер: US20130161059A1
Принадлежит: Borealis AG

The present invention relates to a new polymer composition suitable for a semiconductive devices. Moreover, the present invention is related to a process for producing said composition as well as to a use of said composition. Further, the invention is also related to an article, preferably a cable, comprising said composition.

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04-07-2013 дата публикации

Acrylate-Styrene-Acrylonitrile Resin Composition Having Thermochromic Resistance at High Temperatures

Номер: US20130172485A1
Принадлежит: CHEIL INDUSTRIES INC.

An acrylate-aromatic vinyl-vinyl cyanide resin composition having thermochromic resistance at high temperatures is provided. The resin composition includes: (A) about 20 to about 50% by weight of acrylic graft copolymer; (B) about 20 to about 50% by weight of two types of aromatic vinyl-vinyl cyanide copolymers with different molecular weights; and (C) about 30 to about 50% by weight of alpha-methyl styrene terpolymer. 1. An acrylate-aromatic vinyl-vinyl cyanide resin composition with thermochromic resistance at high temperature , comprising:(A) about 20 to about 50% by weight of acrylic graft copolymer,(B) about 30 to about 50% by weight of two types of aromatic vinyl-vinyl cyanide copolymers having different molecular weights, and(C) about 30 to about 50% by weight of alpha-methyl styrene terpolymer.2. The resin composition of claim 1 , wherein said acrylic graft copolymer (A) comprises about 40 to about 60% by weight acrylic rubber and about 40 to about 60% by weight of monomer compounds including aromatic vinyl compound and vinyl cyanide compound.3. The resin composition of claim 2 , wherein the monomer compounds including vinyl cyanide compound and aromatic vinyl mixture comprises about 20 to about 30% by weight of vinyl cyanide compound and about 70 to about 80% by weight of aromatic vinyl compound.4. The resin composition of claim 2 , wherein the acrylic rubber comprises a C2 to C10 alkyl acrylate and has an average rubber particle size of about 0.1 to about 0.5 μm.5. The resin composition of claim 2 , wherein said aromatic vinyl compound comprises styrene claim 2 , alpha-methylstyrene claim 2 , p-methylstyrene claim 2 , p-t-butylstyrene claim 2 , 2 claim 2 ,4-dimethylstyrene claim 2 , chlorostyrene claim 2 , vinyltoluene claim 2 , vinylnaphthalene claim 2 , or a combination thereof.6. The resin composition of claim 2 , wherein said vinyl cyanide compound comprises acrylonitrile claim 2 , methacrylonitrile claim 2 , or a combination thereof.7. The resin ...

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15-08-2013 дата публикации

Styrene resin composition, and molded article thereof

Номер: US20130209742A1
Принадлежит: Denki Kagaku Kogyo KK

Provided are a styrene resin composition for use in electronic component packaging such as embossed carrier tape, a sheet which has a large drawing ratio (pocket depth) and in which pockets exhibiting superior transparency and strength and can be thermoformed, and a carrier tape which is thermoformed from the sheet and which allows the verification of letters and the like formed on packaged electronic components from outside the pockets. The electronic component packaging sheet includes: (A) 29-65 mass parts of a styrene-conjugated diene block copolymer; (B) 51-15 mass parts of a polystyrene resin; and (C) 20-9 mass parts of an impact resistant polystyrene resin. Components (A)-(C) each have a weight average molecular weight within a specified range.

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10-10-2013 дата публикации

COMPOSITION

Номер: US20130266806A1
Принадлежит: Sumitomo Chemical Company, Limited

A composition including the following: (A): Polymer (A-1) having structural units derived from propylene and structural units derived from 1-butene, and substantially no melting peak is observed with Polymer (A-1), or Polymer (A-2) obtained by graft polymerization of Polymer (A-1) with an α,β-unsaturated carboxylic acid compound; (B): Polymer (B-1) having structural units derived from ethylene and structural units derived from propylene, and the melting peak of which is observed, or Polymer (B-2) obtained by graft polymerization of Polymer (B-1) with an α,β-unsaturated carboxylic acid compound; and (C): Polymer (C-1) having structural units derived from propylene and structural units derived from 1-butene, and the melting peak of which is observed, or Polymer (C-2) obtained by graft polymerization of Polymer (C-1) with an α,β-unsaturated carboxylic acid compound. 1. A composition comprising the following (A) , (B) and (C):(A): Polymer (A-1) that is a polymer having structural units derived from propylene and structural units derived from 1-butene, wherein the content of the structural units derived from propylene is 70 to 99 mol % based on all structural units of Polymer (A-1), the content of the structural units derived from 1-butene is 1 to 30 mol % based on all structural units of Polymer (A-1), and substantially no melting peak is observed with Polymer (A-1), or,Polymer (A-2) obtained by graft polymerization of Polymer (A-1) with an α,β-unsaturated carboxylic acid compound,(B): Polymer (B-1) that is a polymer having structural units derived from ethylene and structural units derived from propylene, wherein the content of the structural units derived from ethylene is 5 to 20 mol % based on all structural units of Polymer (B-1), the content of the structural units derived from propylene is 80 to 95 mol % based on all structural units of Polymer (B-1), and the melting peak of which is observed, or,Polymer (B-2) obtained by graft polymerization of Polymer (B-1) with ...

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17-10-2013 дата публикации

GRAFT MONOMER COMPOSITION FOR THERMOPLASTIC TRANSPARENT RESIN, COMPOSITION FOR THERMOPLASTIC TRANSPARENT RESIN USING THE SAME, AND THERMOPLASTIC TRANSPARENT RESIN HAVING GOOD TRANSPARENCY AND COLOR

Номер: US20130274416A1
Принадлежит: LG CHEM, LTD.

Disclosed is a graft monomer composition for thermoplastic transparent resins, a composition for thermoplastic transparent resins using the same and a thermoplastic transparent resin that exhibits superior transparency and color at low rubber contents. According to the graft monomer composition, the composition for thermoplastic transparent resins and the thermoplastic transparent resin, although the content of rubber in final products increases or the content of rubber in graft copolymers in the preparation of final products increases, the copolymer surrounds the surface of rubber well, thus reducing haze, considerably improving transparency and exhibiting excellent natural color. 1. A graft monomer composition for thermoplastic transparent resins comprising:a (meth)acrylic acid alkyl ester monomer;an aromatic vinyl monomer; anda hydrophilic monomer,wherein the hydrophilic monomer is selected from monomers having three or more ethylene oxide groups or one carboxyl group, together with containing ethylenic double bonds.2. The graft monomer composition according to claim 1 , wherein the monomers having three or more ethylene oxide groups or one carboxyl group claim 1 , together with containing ethylenic double bonds are one or more selected from the group consisting of ethoxyethoxy ethyl acrylate claim 1 , ethoxy triethylene glycol methacrylate claim 1 , polyethylene glycol (400) monomethyl ether acrylate claim 1 , polyethylene glycol (1000) monomethyl ether acrylate claim 1 , polyethylene glycol (400) monomethyl ether methacrylate claim 1 , polyethylene glycol (1000) monomethyl ether methacrylate claim 1 , polyethylene glycol dimethacrylate claim 1 , polyethylene glycol diacrylate claim 1 , polyethylene glycol allyl acrylate claim 1 , polyethylene glycol monoacrylate claim 1 , polyethylene glycol monomethacrylate claim 1 , polyethylene glycol monoallyl claim 1 , and (meth)acrylic acid.3. A composition for thermoplastic transparent resins obtained by mixing 20 to 75 ...

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24-10-2013 дата публикации

Flame-retardant styrene resin composition and toner cartridge container produced by using it

Номер: US20130280460A1
Принадлежит: Toyo Styrene Co Ltd

To provide a flame-retardant styrene resin composition excellent in the product strength, moldability and heat resistance. A flame-retardant styrene resin composition comprising 100 parts by mass of (A) a rubber-modified styrene resin, from 5.5 to 12 parts by mass of (B) a bromine-type flame retardant made of 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine, from 0.5 to 5 parts by mass of (C) a flame retardancy-imparting auxiliary agent, and from 0.5 to 1.6 parts by mass of (D) at least two lubricants selected from the group consisting of (a) a polyolefin wax, (b) a higher fatty acid amide and (c) a higher carboxylic acid metal salt, wherein the proportions of the respective lubricants are such that (a) is from 0 to 40 mass %, (b) is from 0 to 80 mass %, and (c) is from 0 to 80 mass %, provided that the total amount of (a), (b) and (c) is 100 mass %.

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07-11-2013 дата публикации

METHOD FOR PRODUCING EXFOLIATED GRAPHITE-POLYMER COMPOSITE MATERIAL

Номер: US20130296498A1
Принадлежит:

Provided is a production method which can attain exfoliating treatment of graphite and a process of grafting a polymer onto exfoliated graphite simultaneously and thus makes it possible to easily obtain an exfoliated graphite-polymer composite material in a short time. A method for producing an exfoliated graphite-polymer composite material includes a step of mixing graphite or primary exfoliated graphite, a depolymerizable monomer of which the polymer is decomposed by heating to generate radicals and also to form a monomer or an oligomer, or the polymer A of the monomer, or a polymer B which forms radicals at a temperature close to its decomposition temperature to obtain a mixture; and a heating step of putting the mixture in a non-open container to heat the mixture to a first temperature range from the ceiling temperature or higher to the onset decomposition temperature or lower, or to a temperature higher than the first temperature range. 1. A method for producing an exfoliated graphite-polymer composite material , the method comprising a step of mixing graphite or primary exfoliated graphite , a depolymerizable monomer of which the polymer is decomposed by heating to generate radicals and also to form a monomer or an oligomer , or said polymer A of the monomer , or a polymer B which generates radicals at a temperature equal to or higher than its onset decomposition temperature to obtain a mixture; and a heating step of putting said mixture in a non-open container to heat said mixture to a first temperature range or to a temperature higher than the first temperature range when a temperature range from the ceiling temperature or higher to release decomposition temperature or lower of said polymer A or B is defined as the first temperature range.2. The method for producing an exfoliated graphite-polymer composite material according to claim 1 , the method further comprising in said heating step claim 1 , heating the mixture to a second temperature range exceeding ...

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28-11-2013 дата публикации

Flame retardant polycarbonate compositions, methods of manufacture thereof and articles comprising the same

Номер: US20130317146A1
Принадлежит: SABIC INNOVATIVE PLASTICS IP BV

Disclosed herein is a flame retardant composition comprising 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; were all weight percents are based on the total weight of the composition. Disclosed herein too is a method comprising blending 10 to 90 weight percent of a linear polycarbonate; a branched polycarbonate; 10 to 70 weight percent of a polysiloxane-polycarbonate copolymer; and 1 to 20 weight percent of a phosphazene compound; to form a flame retardant composition; were all weight percents are based on the total weight of the composition.

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05-12-2013 дата публикации

Thermoplastic Vulcanizate Composition, Method of Producing the Same, and Articles Made Therefrom

Номер: US20130324658A1
Принадлежит: Dow Global Technologies LLC

A thermoplastic vulcanizate composition comprising from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a first component comprising a first propylene-based polymer selected from the group consisting of (i) propylene/α-olefin copolymers comprising from 1 to 20 wt % α-olefin and characterized by a g′ ratio of less than 1, measured at interpolymer number average molecular weight (Mn), an MFR (2.16 kg @ 230° C.) greater than or equal to 0.01, a density greater than or equal to 0.850 g/cc, and a molecular weight distribution, Mw/Mn, less than or equal to 3.5, and (ii) combinations thereof; and from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a second component selected from the group consisting of curable or vulcanizable rubbers, having a density from 0.85 to 0.88 g/cc, Ifrom 0.001 to 5 g/10 min, and a Mooney viscosity from 5 to 400, and combinations thereof; wherein at least one of the rubbers is vulcanizable; wherein the thermoplastic vulcanizate composition has a tensile strength at break of greater than or equal to 8 MPa and tear strength at 23° C. of at least 190 lb-f/in. is provided. Methods of making the composition and articles made from the composition are also provided. 1. A thermoplastic vulcanizate composition comprising:from 5 wt % to 95 wt %, based on the total weight of the thermoplastic vulcanizate composition, of a first component consisting essentially of a first propylene-based polymer selected from the group consisting of (i) propylene/α-olefin copolymers comprising from 1 to 20 wt % α-olefin and characterized by a g′ ratio of less than 1, measured at interpolymer number average molecular weight (Mn), an MFR (2.16 kg @ 230° C.) greater than or equal to 0.01, a density greater than or equal to 0.850 g/cc, and a molecular weight distribution, Mw/Mn, less than or equal to 3.5, and (ii) combinations thereof; and{'sub': '2', 'from 5 wt % to 95 wt %, based on ...

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26-12-2013 дата публикации

MOLDED ARTICLE

Номер: US20130344273A1
Принадлежит: Mitsui Chemicals, Inc.

A molded article formed of a composition including 100 parts by weight of at least one kind of resin selected from the group consisting of thermoplastic resins and thermosetting resins, and 0.01 parts by weight to 10,000 parts by weight of a silylated polyolefin, which is obtained by a reaction between a silicon-containing compound containing a structural unit represented by Formula (1) and a vinyl group-containing compound having a defined number average molecular weight, a derivative thereof, or a mixture of these, 3. The molded article according to claim 2 ,wherein the silicon-containing compound contains 3 or more silicon atoms.4. The molded article according to claim 3 ,{'sup': 21', '23', '41, 'wherein in the Formula (2), m=n=1, and all of R, R, and Rare the hydrocarbon group.'}5. The molded article according to claim 3 ,{'sup': 21', '41, 'wherein in the Formula (2), m=1, n=0, and all of Rand Rare the hydrocarbon group.'}6. The molded article according to claim 1 , {'br': None, 'sub': '2', 'A-CH═CH\u2003\u2003(4)'}, 'wherein the vinyl group-containing compound has a structure represented by Formula (4),'}wherein A represents a polymer chain having a structure derived from an α-olefin having 2 to 50 carbon atoms.7. The molded article according to claim 1 ,wherein molecular weight distribution of the vinyl group-containing compound is in a range of 1.1 to 3.0.8. The molded article according to claim 6 ,wherein the A is a polymer chain constituted only of the α-olefin having 2 to 50 carbon atoms.9. The molded article according to claim 6 ,wherein the A is an ethylene homopolymer chain.10. The molded article according to claim 1 ,wherein the vinyl group-containing compound is a (Z) olefin-diene copolymer satisfying the following (Z1) to (Z6):(Z1) a copolymer which is obtained by copolymerizing ethylene with at least one kind of polyene, or a copolymer which is obtained by copolymerizing ethylene with at least one kind of olefin selected from α-olefins having 3 to ...

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26-12-2013 дата публикации

ACRYLIC RUBBER GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION

Номер: US20130345362A1
Принадлежит: UMG ABS, LTD.

[Object] To provide acrylic rubber graft copolymers capable of giving thermoplastic resin compositions exhibiting excellent impact resistance, rigidity and appearance, and to provide thermoplastic resin compositions including the acrylic rubber graft copolymers. 1. An acrylic rubber graft copolymer obtained by graft polymerizing a vinyl monomer in the presence of a rubbery polymer including acrylate ester monomer units and polyfunctional monomer units , wherein the total amount of the polyfunctional monomer units in the rubbery polymer is 0.3 to 3 parts by mass with respect to 100 parts by mass of the acrylate ester monomer units , and the polyfunctional monomer units include 30 to 95 mass % of polyfunctional monomer units having two unsaturated bonds and 5 to 70 mass % of polyfunctional monomer units having three unsaturated bonds with respect to 100 mass % of the total of the polyfunctional monomer units.2. The acrylic rubber graft copolymer according to claim 1 , wherein the rubbery polymer is a polymer obtained by mixing a copolymer latex obtained by polymerizing a monomer mixture including an acrylate ester monomer and polyfunctional monomers together with an acid group-containing copolymer latex to enlarge the polymer claim 1 , and thereafter further adding a monomer including an acrylate ester monomer and polymerizing the monomer to the enlarged polymer.3. The acrylic rubber graft copolymer according to claim 1 , wherein the rubbery polymer has a volume average particle diameter of 300 to 600 nm.4. A thermoplastic resin composition comprising the acrylic rubber graft copolymer described in (hereinafter claim 1 , referred to as “acrylic rubber graft copolymer (A)”).5. The thermoplastic resin composition according to claim 4 , wherein the thermoplastic resin composition comprises the acrylic rubber graft copolymer (A) and an acrylic rubber graft copolymer having a volume average particle diameter of 70 to 200 nm and obtained by graft polymerizing a vinyl ...

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16-01-2014 дата публикации

THERMOPLASTIC RESIN COMPOSITION HAVING HIGH DURABILITY

Номер: US20140017429A1
Принадлежит: NITTA CORPORATION

The thermoplastic resin composition according to the present invention includes a thermoplastic resin (A), and a modified ethylene copolymer (B) dispersed and contained therein, wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5, and an average dispersed particle diameter of not more than 3 μm. The modified ethylene copolymer (B) is preferably a copolymer, modified with an unsaturated carboxylic acid or a derivative thereof, of ethylene with at least one monomer component selected from the group consisting of (i) olefin components except for ethylene, (ii) diene components and (iii) ester components having an ethylenically unsaturated group. 1. A thermoplastic resin composition comprising a thermoplastic resin (A) and a modified ethylene copolymer (B) , and obtained by dispersing the modified ethylene copolymer (B) into the thermoplastic resin (A) , wherein the modified ethylene copolymer (B) in the thermoplastic resin composition has an average dispersed particle aspect ratio of 1 to 3.5 , and an average dispersed particle diameter of not more than 3 μm.2. The thermoplastic resin composition according to claim 1 , wherein the modified ethylene copolymer (B) is a copolymer modified with an unsaturated carboxylic acid or a derivative thereof claim 1 , the copolymer being a copolymer of ethylene with at least one monomer component selected from the group consisting of (i) olefin components except for ethylene claim 1 , (ii) diene components and (iii) ester components having an ethylenically unsaturated group.3. The thermoplastic resin composition according to claim 1 , wherein the thermoplastic resin (A) is at least one selected from the group consisting of polyamide-based resins claim 1 , polyester-based resins claim 1 , polycarbonate-based resins and polyacetal resins.4. The thermoplastic resin composition according to claim 1 , wherein the thermoplastic resin (A) is a ...

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27-03-2014 дата публикации

POLY(PHENYLENE ETHER) COMPOSITION AND ARTICLE

Номер: US20140088229A1
Автор: Balfour Kim G.
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

A composition includes specific amounts of a poly(phenylene ether), a radial block copolymer, a polystyrene-poly(ethylene-butylene) polystyrene triblock copolymer, an organophosphate ester, a hydrocarbon resin, and benzoin. The composition exhibits a desirable balance of multiaxial impact strength, light transmittance, and optical clarity, and it can be used to mold a variety of articles including animal cages, ink cartridges, tubes, pipes, and pipe fittings. 1. A composition comprising:30 to 60 weight percent of a poly(phenylene ether);10 to 40 weight percent of a radial block copolymer of an alkenyl aromatic monomer comprising styrene and a conjugated diene comprising butadiene; wherein the radial block copolymer comprises 60 to 70 weight percent of poly(alkenyl aromatic) content and has a number average molecular weight of 50,000 to 70,000 atomic mass units;5 to 20 weight percent of a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer having a polystyrene content based on the weight of the triblock copolymer of 55 to 80 weight percent;5 to 20 weight percent of an organophosphate ester selected from the group consisting of resorcinol bis(diphenyl phosphate), triphenyl phosphate, alkylated triphenyl phosphate, and combinations thereof;a hydrocarbon resin selected from the group consisting of hydrogenated alicyclic hydrocarbon resins, hydrogenated terpene resins, and combinations thereof; wherein the hydrocarbon resin has a softening point of 120 to 180° C. measured according to ASTM E28; wherein the hydrocarbon resin is present in an amount effective to provide the composition with a multiaxial impact strength of at least 25 joules, measured at 23° C. according to ASTM D3763-08a; and0.05 to 2 weight percent of benzoin;wherein the composition comprises less than 0.5 weight percent tridecyl phosphite;wherein the composition comprises less than or equal to 1 weight percent of fillers; andwherein all weight percents are based on the total weight of the ...

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27-03-2014 дата публикации

POLYAMIDES HAVING IMPROVED ANTI-DELAMINATION

Номер: US20140088254A1
Автор: LIMA Avelino F.
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

The present invention generally relates to polyamide compositions having improved anti-delamination. More specifically, the present invention relates to novel polyamide compositions demonstrating improved anti-delamination, which can have at least one low purity polyamide. 1. A polyamide composition having improved anti-delamination comprising:(a) at least one low purity polyamide having a polyamide content of about 60 to less than 80 wt. %;(b) at least one medium purity polyamide having a polyamide content of 80 to less than 95 wt. %; and(c) an olefinic content having a heat of melting of 3.5 J/g or less.2. The polyamide composition of claim 1 , wherein the low purity polyamide is a post-consumer recycled (PCR) polyamide.3. The polyamide composition of claim 1 , wherein the medium purity polyamide is a post-consumer recycled (PCR) polyamide.4. The polyamide composition of claim 1 , wherein the low purity polyamide comprises about 60 to less than 80 wt. % of polyamide 6 claim 1 , polyamide 66 claim 1 , or mixtures thereof.5. The polyamide composition of claim 1 , wherein the medium purity polyamide comprises 80 to less than 95 wt. % of polyamide 6 claim 1 , polyamide 66 claim 1 , or mixtures thereof.6. The polyamide composition of claim 1 , wherein the olefin content has a heat of melting of 2.9 J/g or less.7. The polyamide composition of further comprising (d) at least one functionalized polyolefin selected from a grafted propylene homopolymer claim 1 , a grafted ethylene/1-octene copolymer claim 1 , a grafted ethylene/propylene copolymer claim 1 , a grafted ethylene/butene copolymer claim 1 , a grafted ethylene/propylene/diene terpolymer (EPDM) claim 1 , or mixtures thereof.8. The polyamide composition of claim 7 , wherein the functionalized polyolefin is grafted with maleic anhydride.9. The polyamide composition of claim 1 , wherein the olefinic content is 10 wt. % or less.10. The polyamide composition of claim 1 , wherein the olefinic content is about 9 wt.11. ...

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03-04-2014 дата публикации

THERMAL STABILIZER-FREE THERMOPLASTIC RESIN COMPOSITION AND METHOD OF PREPARING THE SAME

Номер: US20140094556A1
Принадлежит: LG CHEM, LTD.

Disclosed are a thermal stabilizer-free thermoplastic resin composition and a method of preparing the same. The thermal stabilizer-free thermoplastic resin composition has superior impact resistance, falling ball impact resistance and gloss without using a separate thermal stabilizer. Particularly, the thermal stabilizer-free thermoplastic resin composition improves production efficiency when applied to a squeezing dehydrator because the thermoplastic resin composition is prepared without using a drying process. 1. A thermal stabilizer-free thermoplastic resin composition comprising:a rubber-reinforced resin a); anda matrix resin b),wherein the rubber-reinforced resin a) comprises a rubber polymer latex, an aromatic vinyl compound, a vinyl cyanide compound and a reactive emulsifier and is an ABS thermoplastic resin obtained by graft copolymerization.2. The thermal stabilizer-free thermoplastic resin composition according to claim 1 , wherein the matrix resin b) comprises at least one selected from a styrene-acrylonitrile copolymer and a polycarbonate resin.3. The thermal stabilizer-free thermoplastic resin composition according to claim 2 , wherein the matrix resin b) comprises a styrene-acrylonitrile copolymer having a weight-average molecular weight of 60 claim 2 ,000 to 200 claim 2 ,000 g/mol and an acrylonitrile content of 15 to 40% by weight.4. The thermal stabilizer-free thermoplastic resin composition according to claim 1 , wherein the rubber polymer has a particle diameter of 2 claim 1 ,500 to 5 claim 1 ,000 Å and a gel content of 85 to 99% by weight claim 1 , and is present in an amount of 60 to 75 parts by weight claim 1 , based on 100 parts by weight in total of a monomer for the rubber-reinforced resin.5. The thermal stabilizer-free thermoplastic resin composition according to claim 1 , wherein the aromatic vinyl compound comprises 18 to 28 parts by weight of styrene claim 1 , α-methylstyrene claim 1 , p-methylstyrene claim 1 , vinyl toluene claim 1 , t- ...

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02-01-2020 дата публикации

CLAY-POLYACRYLATE COMPOSITES SUSPENSION VIA IN SITU POLYMERIZATION

Номер: US20200002453A1
Принадлежит:

The present disclosure relates to a clay-polyacrylate composite comprising layers of clay intercalated with polyacrylate, wherein the layers of clay comprises at least one organosilane coupling agent comprising an acrylate moiety; and wherein the polyacrylate comprises a first acrylate monomer and a second acrylate monomer having different solubility. A surfactant-free method of synthesizing the said clay-polyacrylate composite and a method for coating are also provided. In a preferred embodiment, the first acrylate monomer is a hydrophilic acrylate monomer, e.g. 2-hydroxyethyl acrylate, and the second acrylate monomer is a hydrophobic acrylate monomer, e.g. 2-ethylhexyl acrylate. The clay-acrylate composite can be used for forming a barrier coating, which exhibits low water and low oxygen permeability. 1. A clay-polyacrylate composite comprising:one or more layers of clay intercalated with polyacrylate;wherein the one or more layers of clay comprises at least one organosilane coupling agent comprising an acrylate moiety;wherein the at least one organosilane coupling agent is attached to a surface of the one or more layers of clay and the polyacrylate is covalently attached to the organosilane coupling agent; andwherein the polyacrylate comprises a first acrylate monomer and a second acrylate monomer having different solubility.2. The clay-polyacrylate composite according to claim 1 , wherein the one or more layers of clay is present in an amount of 5 to 80 wt % claim 1 , and wherein the wt % is based on the clay-polyacrylate composite.3. The clay-polyacrylate composite according to or claim 1 , wherein each of the one or more layers of clay is selected from the group consisting of montmorillonite claim 1 , bentonite claim 1 , laponite claim 1 , kaolinite claim 1 , saponite claim 1 , vermiculite claim 1 , nontronite claim 1 , hectorite claim 1 , beidellite claim 1 , mica claim 1 , and their mixtures thereof.4. The clay-polyacrylate composite according to any one of ...

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02-01-2020 дата публикации

Organic-inorganic composite particles and method for producing same

Номер: US20200002480A1
Автор: Naoki Okamoto
Принадлежит: Ube Exsymo Co Ltd

The present invention provides organic-inorganic composite particles of which the creep deformation is further suppressed; and a method for producing the same. Organic-inorganic composite particles 10 include a compound having a siloxane bond and has a particle diameter d0, and when a load is applied such that an amount of displacement Ds satisfies 0.08d0≤Ds≤0.15d0 and is held for 180 seconds, conditions of the following Formulae (1) and (2) are satisfied: ( D 180− Ds )/ d 0≤1%  Formula(1); and ( D max− Ds )/ d 0≤1%  Formula (2), wherein d0 is an average particle diameter, D180 is an amount of displacement of the particle diameter after 180 seconds of application of the load, and Dmax is the maximum amount of displacement of the particle diameter during the 180 seconds.

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03-01-2019 дата публикации

Thermoplastic Resin Composition and Molded Product Containing Same

Номер: US20190002688A1
Принадлежит:

The present invention relates to a thermoplastic resin composition and a molded product containing the same, the composition comprising: a base resin comprising a polycarbonate resin, a polyester resin, and a polyalkyl(meth)acrylate resin; a diene-based impact modifier; and an acrylic impact modifier. 1. A thermoplastic resin composition comprising:a base resin comprising a polycarbonate resin, a polyester resin, and a polyalkyl(meth)acrylate resin;a diene-based impact modifier; andan acrylic impact modifier.2. The thermoplastic resin composition according to claim 1 , wherein the base resin comprises:about 40 wt % to about 80 wt % of the polycarbonate resin;about 10 wt % to about 50 wt % of the polyester resin; andabout 1 wt % to about 10 wt % of the polyalkyl(meth)acrylate resin.3. The thermoplastic resin composition according to claim 1 , wherein the diene-based impact modifier is present in an amount of about 0.1 parts by weight to about 10 parts by weight relative to 100 parts by weight of the base resin.4. The thermoplastic resin composition according to claim 1 , wherein the acrylic impact modifier is present in an amount of about 0.1 parts by weight to about 10 parts by weight relative to 100 parts by weight of the base resin.5. The thermoplastic resin composition according to claim 1 , wherein a weight ratio of the diene-based impact modifier to the acrylic impact modifier ranges from about 1:1 to about 4:1.6. The thermoplastic resin composition according to claim 1 , wherein the polyalkyl(meth)acrylate resin is a poly(methyl methacrylate) resin.7. The thermoplastic resin composition according to claim 1 , wherein the diene-based impact modifier is a core-shell type impact modifier composed of: a core formed of a rubber polymer comprising diene rubbers; and a shell formed by grafting an alkyl (meth)acrylate polymer to the core.8. The thermoplastic resin composition according to claim 1 , wherein the acrylic impact modifier is a core-shell type impact ...

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03-01-2019 дата публикации

AQUEOUS DISPERSIONS, COATING COMPOSITIONS FORMED WITH AQUEOUS DISPERSIONS, AND MULTI-LAYER COATINGS

Номер: US20190002709A1
Принадлежит:

An aqueous dispersion includes an aqueous medium and self-crosslinkable core-shell particles dispersed in the aqueous medium. The core-shell particles include (1) a polymeric core at least partially encapsulated by (2) a polymeric shell having urethane linkages, keto and/or aldo functional groups, and hydrazide functional groups. Further, the polymeric core is covalently bonded to at least a portion of the polymeric shell. 1. An aqueous dispersion comprising an aqueous medium and self-crosslinkable core-shell particles dispersed in the aqueous medium , wherein the core-shell particles comprise (1) a polymeric core at least partially encapsulated by (2) a polymeric shell comprising urethane linkages , keto and/or aldo functional groups , and hydrazide functional groups , andwherein the polymeric core is covalently bonded to at least a portion of the polymeric shell.2. The aqueous dispersion of claim 1 , wherein the polymeric core of the self-crosslinkable core-shell particles comprises an addition polymer derived from ethylenically unsaturated monomers.3. The aqueous dispersion of claim 2 , wherein the ethylenically unsaturated monomers comprise a (meth)acrylate monomer claim 2 , a vinyl monomer claim 2 , or a combination thereof.4. The aqueous dispersion of claim 1 , wherein the polymeric shell of the self-crosslinkable core-shell particles further comprises at least one water dispersible group.5. The aqueous dispersion of claim 4 , wherein the at least one water dispersible group is selected from carboxylic acid functional groups claim 4 , salts thereof and/or polyoxyalkylene groups.6. The aqueous dispersion of claim 1 , wherein the self-crosslinkable core-shell particles are formed from a mixture of reactants comprising: (a) isocyanate-functional ethylenically unsaturated polyurethane prepolymers; (b) a Michael addition reaction product of ethylenically unsaturated monomers comprising a keto and/or aldo functional group claim 1 , and a compound comprising at least ...

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07-01-2021 дата публикации

FIREPROOF GLUE SOLUTION MATRIX AND PREPARATION METHOD THEREOF AND FIREPROOF GLUE SOLUTION AND PREPARATION METHOD THEREOF

Номер: US20210002527A1
Принадлежит:

Provided is a fireproof glue solution matrix and a preparation method thereof and a fireproof glue solution and a preparation method thereof. The fireproof glue solution matrix comprises silicon dioxide and also comprises a lubricating substance, wherein the lubricating substance is a copolymer of aromatic olefin and/or acrylic ester. The fireproof glue solution comprises the fireproof glue solution matrix. The fireproof glue solution prepared by the present invention has a viscosity of only 50-1000 cp, and is suitable for preparing laminated fireproof glass with a fireproof layer of thickness of less than 1 mm. In addition, the fireproof layer made of the fireproof glue solution has advantages of good fireproof and heat-insulating properties, high in hardness, high transmittance and good ultraviolet resistance performance. 124-. (canceled)25. A fireproof glue solution matrix , comprising silicon dioxide and a lubricating substance , wherein the lubricating substance is at least one of a copolymer of aromatic olefin and acrylic ester.26. The fireproof glue solution matrix according to claim 25 , whereinthe aromatic olefin is styrene; andthe acrylic ester is butyl acrylate.27. The fireproof glue solution matrix according to claim 25 , wherein the lubricating substance is particles.28. The fireproof glue solution matrix according to claim 25 , wherein the fireproof glue solution matrix comprisessilicon dioxide as a core,an inner shell layer covering the silicon dioxide, andan outer shell layer covering the inner shell layer,wherein the lubricating substance is at least arranged between the inner shell layer and the silicon dioxide.29. The fireproof glue solution matrix according to claim 28 , wherein the lubricating substance is further arranged in the inner shell layer.30. The fireproof glue solution matrix according to claim 28 , whereinthe inner shell layer is a polymer formed by one or more of acrylic acid, methacrylic acid and polyacrylamide; andthe outer shell ...

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13-01-2022 дата публикации

METHOD FOR PRODUCING RESIN COMPOSITION, AND RESIN COMPOSITION

Номер: US20220010037A1
Автор: Nagaoka Yu
Принадлежит: KANEKA CORPORATION

A resin composition is produced by a method including a step of rapidly freezing a latex containing fine polymer particles (A), a step of thawing the latex which has been frozen in the preceding step, a step of mixing, into the latex which has been subjected to the preceding step, a resin (B) having a specific viscosity, and after the preceding steps, a step of separating the latex into a resin composition and a water component. The resin composition is an agglutinate containing the fine polymer particles (A) and the resin (B). 1. A method of producing a resin composition , comprising:a rapid freezing step of rapidly freezing a latex containing fine polymer particles (A);a thawing step of thawing the latex which has been frozen in the rapid freezing step;a resin mixing step of mixing, into the latex which has been subjected to the rapid freezing step, a resin (B) which is, at 25° C., a liquid having a viscosity of 100 mPa·s to 1,000,000 mPa·s, a semisolid, or a solid; andafter the thawing step and the resin mixing step, a separating step of separating the latex into the resin composition and a water component, the resin composition being an agglutinate containing the fine polymer particles (A) and the resin (B);wherein the fine polymer particles (A) having at least a graft part which is constituted by a polymer containing, as one or more structural units that derived from at least one type of monomer selected from the group consisting of aromatic vinyl monomers, vinyl cyanide monomers, and (meth)acrylate monomers; andin a case where a total amount of the fine polymer particles (A) and the resin (B) is regarded as 100% by weight, an amount of the fine polymer particles (A) be 1% by weight to 70% by weight and an amount of the resin (B) be 30% by weight to 99% by weight.2. A method of producing a resin composition , comprising:a resin mixing step of mixing, into a latex containing fine polymer particles (A), a resin (B) which is, at 25° C., a liquid having a viscosity ...

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13-01-2022 дата публикации

THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE OF SAME

Номер: US20220010120A1
Автор: Atsuta Hiroyuki
Принадлежит:

The thermoplastic resin composition of the present invention includes: a (meth)acrylic acid ester copolymer (A) obtained by polymerizing a vinyl monomer mixture (m1) containing 50% by mass or more and less than 80% by mass of a (meth)acrylic acid ester monomer and 12 to 39% by mass of an aromatic vinyl monomer; a hindered amine compound (C) having a molecular weight of 200 to 1,800; and an ultraviolet absorber compound (D) having a maximum absorption wavelength at 250 to 300 nm, wherein: the thermoplastic resin composition optionally includes a graft copolymer (B), and the hindered amine compound (C) is present in an amount of 0.4 to 1.8 parts by mass, the ultraviolet absorber compound (D) is present in an amount of 0.1 to 1.6 parts by mass, and a sum of the amounts of the hindered amine compound (C) and the ultraviolet absorber compound (D) is not more than 2.0 parts by mass, each relative to 100 parts by mass of a combination of the (meth)acrylic acid ester copolymer (A) and the graft copolymer (B). 1. A thermoplastic resin composition comprising:{'b': '1', 'a (meth)acrylic acid ester copolymer (A) obtained by polymerizing a vinyl monomer mixture (m) containing a (meth) acrylic acid ester monomer and an aromatic vinyl monomer;'}a hindered amine compound (C) having a molecular weight of 200 to 1800; andan ultraviolet absorber compound (D) having a maximum absorption wavelength at 250 to 300 nm,wherein:{'b': 2', '1', '1, 'the thermoplastic resin composition optionally includes a graft copolymer (B) obtained by graft-polymerizing a vinyl monomer mixture (m) in the presence of a rubber polymer (b), the (meth)acrylic acid ester monomer is present in an amount of 50% by mass or more and less than 80% by mass, and the aromatic vinyl monomer is present in an amount of 12 to 39% by mass, each based on a total mass of the vinyl monomer mixture (m), and'}the hindered amine compound (C) is present in an amount of 0.4 to 1.8 parts by mass, the ultraviolet absorber compound (D) ...

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01-01-2015 дата публикации

Transparent Thermoplastic Resin Composition Having Improved Whitening Resistance at Low Temperature and Excellent Impact Strength

Номер: US20150005425A1
Принадлежит:

A transparent thermoplastic resin composition includes (A) a rubber-modified graft copolymer which is prepared by copolymerizing (a2) a (meth)acrylic acid alkyl ester monomer, (a3) a styrene-based monomer and (a4) an acrylonitrile-based monomer onto (a1) a butadiene-based rubber polymer; (B) a styrene-based copolymer having a glass transition temperature of about 90 to about 100° C. which is prepared by copolymerizing (b1) a methacrylic acid alkyl ester monomer, (b2) an acrylic acid alkyl ester monomer, (b3) a styrene-based monomer and (b4) an acrylonitrile-based monomer; and (C) a silicone oil. The composition can have improved whitening resistance at low temperatures and/or excellent impact strength. 1. A transparent thermoplastic resin composition that can have improved whitening resistance at low temperatures comprising:(A) a rubber-modified graft copolymer which is prepared by copolymerizing (a2) a (meth)acrylic acid alkyl ester monomer, (a3) a styrene-based monomer and (a4) an acrylonitrile-based monomer onto (a1) a butadiene-based rubber polymer;(B) a styrene-based copolymer having glass transition temperature of about 90 to about 100° C. which is prepared by copolymerizing (b1) a methacrylic acid alkyl ester monomer, (b2) an acrylic acid alkyl ester monomer, (b3) a styrene-based monomer and (b4) an acrylonitrile-based monomer; and(C) a silicone oil.2. The transparent thermoplastic resin composition of claim 1 , wherein the difference between the refractive index of the rubber-modified graft copolymer (A) and the refractive index of the butadiene-based rubber polymer (a1) is about 0.005 or less claim 1 , and the difference between the refractive index of the rubber-modified graft copolymer (A) and the refractive index of the styrene-based copolymer (B) is about 0.005 or less.3. The transparent thermoplastic resin composition of claim 1 , wherein the transparent thermoplastic resin composition comprises about 5 to about 75% by weight of the rubber-modified ...

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14-01-2016 дата публикации

SIMULTANEOUS PLASTICIZATION AND COMPATIBILIZATION PROCESS AND COMPOSITIONS

Номер: US20160009912A1
Принадлежит: KIMBERLY-CLARK WORLDWIDE, INC.

A continuous process for manufacturing a blended polymer includes mixing a native starch, a polyolefin, and a compatibilizer; and forming the blended polymer from the resulting mixture using an extruder. The process can also include mixing the native starch, the polyolefin, and the compatibilizer in the extruder. The polyolefin can be a petroleum- or bio-based polyethylene, and the compatibilizer can be a maleic anhydride grafted polyolefin. The process can further include mixing a processing aid such as glycerin, and forming the blended polymer into a film. 1. A continuous process for manufacturing a blended polymer comprising:mixing a native starch, a polyolefin, and a compatibilizer; andforming the blended polymer from the resulting mixture using an extruder.2. The process of claim 1 , wherein the mixing is performed in the extruder.3. The process of claim 1 , wherein the compatibilizer is maleic anhydride grafted polyolefin.4. The process of claim 1 , wherein the native starch is obtained from corn claim 1 , waxy corn claim 1 , wheat claim 1 , sorghum claim 1 , rice claim 1 , waxy rice claim 1 , potatoes claim 1 , tapioca claim 1 , sweet potato claim 1 , arrowroot claim 1 , or sago palm.5. The process of claim 1 , wherein the polyolefin is polyethylene.6. The process of claim 5 , wherein the polyethylene is bio-based.7. The process of claim 1 , wherein the extruder operates at a screw speed within the range of 250 rpm to 350 rpm.8. The process of claim 1 , wherein the extruder has a final stage claim 1 , and wherein the final stage operates at a temperature of about 185° C.9. The process of claim 1 , wherein mixing further comprises mixing a processing aid.10. The process of claim 9 , wherein the processing aid is glycerin.11. The process of claim 1 , wherein forming further comprises forming the blended polymer into a film.12. The process of claim 1 , wherein the polyolefin is a petroleum-based polyethylene in the range between about 10 wt. % to about 80 wt. %. ...

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03-02-2022 дата публикации

ANTAGONIST OF THE FIBROBLAST GROWTH FACTOR RECEPTOR 3 (FGFR3) FOR USE IN THE TREATMENT OR THE PREVENTION OF SKELETAL DISORDERS LINKED WITH ABNORMAL ACTIVATION OF FGFR3

Номер: US20220031696A9
Принадлежит:

The present invention relates to the treatment or prevention of skeletal disorders, at particular skeletal diseases, developed by patients that display abnormal increased activation of the fibroblast growth factor receptor 3 (FGFR3), in particular by expression of a constitutively activated mutant of FGFR3. 2. The method according to claim 1 , wherein the FGFR3-related skeletal disease is selected from the group consisting of thanatophoric dysplasia type I claim 1 , thanatophoric dysplasia type II claim 1 , severe achondroplasia with developmental delay and acanthosis nigricans claim 1 , hypochondroplasia claim 1 , achondroplasia and FGFR3-related craniosynostosis such as Muenke syndrome and Crouzon syndrome with acanthosis nigricans. The present invention relates to the treatment or prevention of skeletal disorders, in particular skeletal diseases and craniosynostosis, developed by patients that display abnormal increased activation of the fibroblast growth factor receptor 3 (FGFR3), in particular by expression of a constitutively activated mutant of FGFR3.Skeletal development in humans is regulated by numerous growth factors. Among them Fibroblast Growth Factor Receptor 3 (FGFR3) has been described as both a negative and a positive regulator of endochondral ossification.The FGFR3 gene, which is located on the distal short arm of chromosome 4, encodes a 806 amino acid protein precursor (fibroblast growth factor receptor 3 isoform 1 precursor; SEQ ID NO: 1).The FGFR3 protein belongs to the receptor-tyrosine kinase family. This family comprises receptors FGFR1, FGFR2, FGFR3 and FGFR4 that respond to fibroblast growth factor (FGF) ligands. These structurally related proteins exhibit an extracellular domain composed of three immunoglobin-like domains which form the ligand-binding domain, an acid box, a single transmembrane domain and an intracellular split tyrosine kinase domain. Although to date the physiological ligand(s) for FGFR3 is (are) not known, like other ...

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03-02-2022 дата публикации

Thermoplastic resin composition, method of preparing the same, and molded article manufactured using the same

Номер: US20220033633A1
Принадлежит: LG Chem Ltd

The present invention relates to a thermoplastic resin composition, a method of preparing the same, and a molded article manufactured using the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) containing acrylate rubber having an average particle diameter of 0.05 to 0.15 μm as a core, an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) containing acrylate rubber having an average particle diameter of 0.3 to 0.6 μm as a core, an aromatic vinyl polymer (B-1), and a heat-resistant aromatic vinyl polymer (B-2); and 0.5 to 10 parts by weight of a polyolefin elastomer (C). Within this range, the thermoplastic resin composition may have a heat deflection temperature (HDT) of 89° C. or more.

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03-02-2022 дата публикации

NANOSTRUCTURES FOR THE ASSEMBLY OF MATERIALS

Номер: US20220033639A1
Принадлежит: Massachusetts Institute of Technology

Nanostructures and associated compositions, systems, and methods are provided. In some embodiments, a nanostructure may comprise polymers, intermolecular bonding groups, and a particle. The polymers may be associated with the particle and the intermolecular bonding groups may be associated with at least some of the polymers. In some embodiments, at least some of the intermolecular bonding groups may have a different chemical composition and/or chemical property than the polymers. In some embodiments, nanostructures may reversibly associate with each other via the intermolecular bonding groups to form a material. In some such cases, the intermolecular bonding groups on different nanostructures may reversibly associate with each other. In some embodiments, the nanostructures may be designed, such that the energy required to disassociate at least a portion of the nanostructures in the material is greater than the energy required to dissociate a single association between intermolecular bonding groups. 122-. (canceled)23. An article , comprising:a first component comprising a first particle, first polymers, and first intermolecular bonding groups, wherein each first polymer is associated with the first particle and at least one first intermolecular bonding group; anda second component comprising a second particle, second polymers, and second intermolecular bonding groups, wherein each second polymer is associated with the second particle and at least one second intermolecular bonding group,wherein at least a portion of the first intermolecular bonding groups are bonded to at least a portion of the second intermolecular bonding groups, and wherein at least some of the first intermolecular bonding groups do not comprise a moiety that is the same as a repeat unit or precursor thereof in the first polymers.24. The article of claim 23 , wherein the bond strength between the first intermolecular bonding group and the second intermolecular group is greater than or equal to ...

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16-01-2020 дата публикации

GRAFT COPOLYMER, AND THERMOPLASTIC RESIN COMPOSITION USING SAME

Номер: US20200017686A1
Принадлежит:

A graft copolymer (B-III) includes a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate; and at least one monomer selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III). 1. A graft copolymer (B-III) comprising:a rubbery polymer (A-III) that is a miniemulsion polymerization reaction product of an alkyl (meth)acrylate; andat least one monomer selected from aromatic vinyl compounds, (meth)acrylic acid esters, and vinyl cyanide compounds graft-polymerized onto the rubbery polymer (A-III).2. A thermoplastic resin composition comprising the graft copolymer (B-III) according to .3. A molded article obtained by molding the thermoplastic resin composition according to . This is a divisional Application of Ser. No. 15/771,823 filed on Apr. 27, 2018, which claims priorities of Japanese Patent Applications No. 2015-212024 filed on Oct. 28, 2015, No. 2015-212025 filed on Oct. 28, 2015, No. 2015-212026 filed on Oct. 28, 2015, and No. 2015-212027 filed on Oct. 28, 2015, disclosure of which is incorporated herein.The present invention relates to first to fourth inventions below.The first invention relates to a graft polymer that has an excellent impact-resistance-imparting effect and that can provide a thermoplastic resin composition excellent in weather resistance and color developability, a production method thereof, a thermoplastic resin composition including the graft copolymer, and a molded article thereof.The second invention relates to crosslinked particles and graft crosslinked particles that, as modifiers of a thermoplastic resin, can improve the flowability, impact resistance, and abrasion resistance of the resin without impairing its color developability and mold shrinkage rate, a thermoplastic resin composition including the crosslinked particles and/or the graft crosslinked particles, and a molded article thereof.The third ...

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28-01-2016 дата публикации

MODIFIED HETEROPHASIC POLYOLEFIN COMPOSITION

Номер: US20160024289A1
Принадлежит:

A heterophasic polymer composition comprises a propylene polymer phase, an ethylene polymer phase, and a compatibilizing agent. The compatibilizing agent comprises (i) an acyclic carbon-carbon double bond having a first carbon atom and a second carbon atom, (ii) an electron withdrawing group directly bonded to the first carbon atom in the acyclic carbon-carbon double bond, and (iii) a second carbon-carbon multiple bond in conjugation with the acyclic carbon-carbon double bond, wherein the second carbon-carbon multiple bond is linked to the acyclic carbon-carbon double bond through the second carbon atom. 1. A heterophasic polymer composition comprising:{'sub': 4', '10, '(a) a propylene polymer phase comprising propylene polymers selected from the group consisting of polypropylene homopolymers and copolymers of propylene and up to 50 wt. % of one or more comonomers selected from the group consisting of ethylene and C-Cα-olefin monomers;'}{'sub': 3', '10, '(b) an ethylene polymer phase comprising ethylene polymers selected from the group consisting of ethylene homopolymers and copolymers of ethylene and one or more C-Cα-olefin monomers; and'}(c) a compatibilizing agent, the compatibilizing agent comprising (i) an acyclic carbon-carbon double bond having a first carbon atom and a second carbon atom, (ii) an electron withdrawing group directly bonded to the first carbon atom in the acyclic carbon-carbon double bond, and (iii) a second carbon-carbon multiple bond in conjugation with the acyclic carbon-carbon double bond, wherein the second carbon-carbon multiple bond is linked to the acyclic carbon-carbon double bond through the second carbon atom.2. The heterophasic polymer composition of claim 1 , wherein the second carbon-carbon multiple bond is a carbon-carbon double bond.8. The heterophasic polymer composition of claim 1 , wherein the ethylene polymers are selected from the group consisting of ethylene-propylene elastomers claim 1 , ethylene-butene elastomers claim ...

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28-01-2016 дата публикации

Polycarbonate resin composition and molded article

Номер: US20160024299A1
Автор: Keisuke Tomita
Принадлежит: Mitsubishi Engineering Plastics Corp

A polycarbonate resin composition is provided, which exhibits a high flame retardancy, a high impact resistance, and an excellent thermal stability. The polycarbonate resin composition is characterized by containing, per 100 mass parts of (A) a polycarbonate resin, 0.001 to 1 mass part of (B) a metal organosulfonate salt and 0.5 to 5 mass parts of (C) a core/shell graft copolymer that has an Si content of at least 300 ppm and that has a butadienic rubber component for the core, and per 100 mass parts of the core/shell graft copolymer (C), 0.1 to 3 mass parts of (D) a metal salt of an organophosphate ester.

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26-01-2017 дата публикации

Thermoplastic composition

Номер: US20170022358A1
Принадлежит: MITSUBISHI CHEMICAL EUROPE GMBH

A thermoplastic composition including: a) 30-97 wt % of an aromatic polycarbonate; b) 0.5-25 wt % of a laser direct structuring additive; and c) 2-15 wt % of a methylmethacrylate butadiene styrene based rubber; d) 0.1-15 wt % of one or more conductive track adhesion agents selected from the group consisting of an organic phosphate, a phosphazene compound and a hypophosphorous acid metal salt, wherein a molded part of the composition provided with a conductive track made by a laser radiation and a subsequent metallization has a classification 0 as determined according to ISO2409:2013 after being subjected to conditions of 65° C. and 85% Relative Humidity for 24 hours.

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28-01-2016 дата публикации

Optical resin material and optical film

Номер: US20160025898A1
Принадлежит: Kaneka Corp

An object of the present invention is to provide an optical resin material and an optical film, which are very small in both orientation birefringence and photoelastic birefringence, excellent in transparency, have few defects due to foreign substances, and are excellent in heat resistance and mechanical strength. Provided is an optical resin material containing a graft copolymer (C) obtained by polymerizing a vinyl-based monomer mixture (B) in the presence of a vinyl-based polymer (A) having at least one crosslinked structure layer, wherein the graft copolymer (C) has an orientation birefringence of −15×10 −4 to 15×10 −4 and a photoelastic constant of −10×10 −12 to 10×10 −12 Pa −1 .

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10-02-2022 дата публикации

EPOXY RESIN COMPOSITION, CURABLE RESIN COMPOSITION, CURED PRODUCT, AND ADHESIVE

Номер: US20220041856A1
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

These vinyl-based polymerizable group-containing silane compounds may be used alone, or two or more thereof may be used in combination. The content of the vinyl-based polymerizable group-containing silane compound is 1% by mass or more and 10% by mass or less, and preferably 1% by mass or more and 5% by mass or less, in 100% by mass of the organosiloxane mixture. When the amount of the vinyl-based polymerizable group-containing silane compound is the lower limit value or more, the peeling force and impact resistance of the obtained cured product tend to be high. When the amount of the vinyl-based polymerizable group-containing silane compound is the upper limit value or less, the peeling force and impact resistance of the obtained cured product tend to be high. 1. An epoxy resin composition , comprising:a rubber-containing polymer, andan epoxy resin, whereinthe rubber-containing polymer contains at least one rubbery polymer and at least one vinyl monomer part, andthe vinyl monomer part has a unit based on a monomer (a) described below, a unit based on a monomer (b) described below, and a unit based on a monomer (c) described below, whereinthe monomer (a) is a polyfunctional (meth)acrylate, the monomer (b) is at least one monomer selected from a group consisting of epoxy group-containing (meth)acrylates and aromatic vinyl monomers, and the monomer (c) is an alkyl (meth)acrylate.2. The epoxy resin composition according to claim 1 , whereinthe rubbery polymer is at least one selected from a group consisting of a diene rubber, a diene-acrylic composite rubber, an acrylic rubber, a silicone rubber, and an acrylic-silicone composite rubber.3. The epoxy resin composition according to claim 1 , whereina proportion of the unit based on the monomer (a) is 1% by mass or more and 45% by mass or less, and a proportion of the unit based on the monomer (b) is 1% by mass or more and 50% by mass or less, with respect to a total mass of the vinyl monomer part.4. A curable resin ...

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24-01-2019 дата публикации

Polymeric compositions for optical fiber cable components

Номер: US20190023895A1
Принадлежит: Dow Global Technologies LLC

Polymeric compositions comprising a polybutylene terephthalate, an ethylene-based polymer, and a maleated ethylene-based polymer. Optical cable components fabricated from the polymeric composition. Optionally, the polymeric composition can further comprise one or more additives, such as a filler. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.

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24-04-2014 дата публикации

THERMOPLASTIC ELASTOMER COMPOUNDS EXHIBITING SHAPE MEMORY VIA THERMO-MECHANICAL ACTION

Номер: US20140110880A1
Автор: Xu Liang
Принадлежит: POLYONE CORPORATION

A thermoplastic elastomer compound is disclosed having a high strain recovery rate and a high strain fixity rate to provide shape memory, preferably manageable shape memory. One type of thermoplastic elastomer compound is comprises a maleated styrenic block copolymer and polycaprolactone to achieve the shape memory. A second type of thermoplastic elastomer compound comprises styrene-ethylene/butylene-styrene and a paraffin wax having less than about 0.5% oil content. Shape modes of articles made from the thermoplastic elastomer compound can be altered by at least one thermo-mechanical event to cause deformation of the compound from a first shape to a second shape with retention of the compound in the second shape for any reasonable time interval. 1. A thermoplastic elastomer compound comprising:at least one thermoplastic elastomer andat least one other polymer,neither of which having a shape memory but together as a blend having shape memory.2. A thermoplastic elastomer compound comprising:at least one thermoplastic elastomer andat least one other material comprising a polymer or a wax,neither of which having a shape memory but together as a blend having shape memory.3. A thermoplastic elastomer compound of having a strain recovery rate of at least 65% and wherein the shape memory is a manageable shape memory.4. A thermoplastic elastomer compound of having a strain fixity rate of at least 65%.7. The compound of claim 5 , wherein the shape memory is a manageable shape memory.8. The compound of claim 1 , wherein the compound is reshaped by at least one thermo-mechanical event.9. The compound of claim 8 , wherein the thermo-mechanical event is alteration of temperature by at least 40° C. under sufficient stress to cause deformation of the compound from a first shape to a second shape with retention of the compound in the second shape for any time interval.10. The compound of claim 1 , wherein the compound further comprises plasticizer and polyolefin.11. The compound of ...

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28-01-2021 дата публикации

PHOTOCURABLE COMPOSITION, A HYDROGEL AND A MOLDED PRODUCT THEREOF

Номер: US20210024719A1
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A photocurable composition including the following components (A) to (D), (A) a monomer having one (meth)acryloyl structure, (B) a crosslinking agent having two or more (meth)acryloyl structures, (C) an inorganic ultraviolet-blocking agent having a 50% volume cumulative particle size of 1 to 50 nm, and (D) a photopolymerization initiator in an amount of 0.05 to 1 part by weight, relative to total 100 parts by weight of components (A) and (B), wherein a part or all of component (A) is a hydrophilic monomer, and a content of the hydrophilic monomer is 70% by weight or more, relative to the total weight of components (A) and (B). 1. A photocurable composition comprising the following components(A) to (D),(A) a monomer having one (meth)acryloyl structure,(B) a crosslinking agent having two or more (meth)acryloyl structures in an amount of 0.1 to 10 parts by weight, relative to total 100 parts by weight of components (A) and (B),(C) an inorganic ultraviolet-blocking agent having a 50% volume cumulative particle size of 1 to 50 nm in the particle size distribution as determined according to a dynamic light scattering method, in an amount of 0.5 to 10 parts by weight, relative to total 100 parts by weight of components (A) and (B), and(D) a photopolymerization initiator in an amount of 0.05 to 1 part by weight, relative to total 100 parts by weight of components (A) and (B),wherein a part or all of component (A) is a hydrophilic monomer, and a content of the hydrophilic monomer is 70% by weight or more, relative to the total weight of components (A) and (B).3. The photocurable composition according to claim 1 , wherein the inorganic ultraviolet-blocking agent is a metal oxide particle comprising at least one of titanium oxide claim 1 , zinc oxide and cerium oxide.4. The photocurable composition according to claim 3 , wherein the metal oxide particle has a core-shell structure composed of a core of a titanium oxide-containing metal oxide and a silicon oxide shell outside of ...

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28-01-2021 дата публикации

UV-CURABLE NON-ISOCYANATE POLYUREA POLYMER AND UV-CURABLE COATING COMPOSITION CONTAINING THE SAME

Номер: US20210024746A1
Автор: Fan Shigang, Xie Han, Zhao Xi
Принадлежит:

Provided are a UV-curable non-isocyanate polyurea polymer and a UV-curable coating composition containing the same. The UV-curable non-isocyanate polyurea polymer has one or more ethylenically unsaturated functional groups and the ethylenically unsaturated functional groups are attached to nitrogen atoms present in a backbone urea segment via —C(=0)- linkage. The nonisocyanate polyurea polymer is prepared by: (i) providing an ethylenically unsaturated compound having one or more carboxylic acid functional groups; and (ii) reacting said ethylenically unsaturated compound having one or more carboxylic acid functional groups with a multi-carbodiimide polymer to form the non-isocyanate polyurea polymer. 1. A UV-curable non-isocyanate polyurea polymer having one or more ethylenically unsaturated functional groups , wherein the ethylenically unsaturated functional group is attached to a nitrogen atom present in a backbone urea segment via —C(═O)-linkage.2. The non-isocyanate polyurea polymer of claim 1 , wherein the non-isocyanate polyurea polymer comprises claim 1 , relative to the total weight of the non-isocyanate polyurea polymer claim 1 , 3 wt % or more of the —C(═O)— linkage.3. The non-isocyanate polyurea polymer of claim 1 , wherein the non-isocyanate polyurea polymer comprises claim 1 , relative to the total weight of the non-isocyanate polyurea polymer claim 1 , 3 wt % or more of the ethylenically unsaturated functional groups.4. The non-isocyanate polyurea polymer of claim 1 , wherein the non-isocyanate polyurea polymer further comprises one or more carbodiimide groups within its backbone segments.5. The non-isocyanate polyurea polymer of claim 1 , wherein the non-isocyanate polyurea polymer is prepared by:(i) providing an ethylenically unsaturated compound having one or more carboxylic acid functional groups; and(ii) reacting said ethylenically unsaturated compound having one or more carboxylic acid functional groups with a multi-carbodiimide polymer to form ...

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02-02-2017 дата публикации

PIGMENT DISPERSION LIQUID, DECORATIVE MATERIAL, TRANSFER MATERIAL FOR FORMING DECORATIVE MATERIAL, SUBSTRATE WITH DECORATIVE MATERIAL, TOUCH PANEL, INFORMATION DISPLAY DEVICE, AND GRAFT TYPE SILICONE POLYMER

Номер: US20170029648A1
Принадлежит: FUJIFILM Corporation

A pigment dispersion liquid includes a pigment dispersant; and a pigment, in which the pigment dispersant is a graft type silicone polymer denoted by General Formula 1. In General Formula 1, Rto R, Rand Rrepresent a hydrogen atom, a hydroxy group, an aryl group, or an alkyl group having 1 to 3 carbon atoms; Rand Rrepresent an arylene group or an alkylene group having 1 to 3 carbon atoms; Y and Z represent a single bond or a divalent organic linking group; A represents a group having a pigment adsorption portion; B represents a group having a structure denoted by General Formula 2; 1 and n represent an integer of greater than or equal to 1; m represents an integer of greater than or equal to 0; and k represents an integer of greater than or equal to 1. 3. The pigment dispersion liquid according to claim 1 ,wherein in General Formula 1 described above, m represents an integer of greater than or equal to 1.4. The pigment dispersion liquid according to claim 2 ,wherein in General Formula 3 described above, m represents an integer of greater than or equal to 1.7. The pigment dispersion liquid according to claim 1 ,wherein the pigment is a white pigment or a black pigment.8. The pigment dispersion liquid according to claim 1 ,wherein the pigment is titanium dioxide or carbon black.9. The pigment dispersion liquid according to claim 1 ,wherein a content rate of the pigment with respect to the pigment dispersion liquid is 20 to 90 mass %.10. The pigment dispersion liquid according to claim 1 , further containing:a silicone resin.11. The pigment dispersion liquid according to claim 1 ,wherein the pigment dispersion liquid is used for forming a decorative material.12. A decorative material using the pigment dispersion liquid according to .13. The decorative material according to claim 12 ,wherein the decorative material is used for a touch panel, and is a white decorative material.14. A transfer material for forming a decorative material claim 12 , comprising:{'claim-ref': ...

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04-02-2016 дата публикации

Matt weather-resistant molding masses for extrusion methods

Номер: US20160032093A1
Принадлежит: Styrolution Group Gmbh

The invention relates to thermoplastic compositions, containing the following components: a) 30 to 90 wt % of one or more styrene copolymers, and acrylonitrile, as component A; b) 10 to 70 wt % of several impact-modifying graft rubbers without an olefinic double bond in the rubber phase as component B, wherein said component B contains: BI) I to 50 wt % of rubber particles that have an average particle diameter of 50 to 150 nm as component B I; B2) 50 to 99 wt % of rubber particles that have an average particle diameter of 800 to 1200 nm as component B2; c) 0 to 20 wt % of one or more additives as component C; are especially weather-resistant and have good mechanical properties.

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04-02-2016 дата публикации

Method of manufacturing polymer coated ferromagnetic particles

Номер: US20160032130A1

A method of manufacturing a polymer coated single ferromagnetic particle is provided. The method includes hydrophobizing one single hydrophilic ferromagnetic particle by absorbing an aliphatic acid having a hydrophobic aliphatic group and a hydrophilic acid group onto the single ferromagnetic particle to obtain a single hydrophobic ferromagnetic particle; emulsifying the one single hydrophobic ferromagnetic particle with a monomer liquid comprising a nonionic surface activating agent which re-hydrophilizes the one single hydrophobic ferromagnetic particle, to obtain an emulsified liquid; adding a radical addition initiator to the emulsified liquid; and emulsion polymerizing the monomer by radical addition polymerization.

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01-02-2018 дата публикации

Resin Composition and Article Molded Therefrom

Номер: US20180030240A1
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

The present invention relates to: a resin composition comprising a polyacetal resin (A), a salt (B) consisting of a carboxylic acid and an alkaline-earth metal, and a rubber-containing graft polymer (C); and a molded article formed by molding the resin composition. The resin composition and the molded article of the present invention are characterized in that the thermal decomposition associated with weight loss in a molding process or the formaldehyde in the molded article is reduced. 1: A resin composition comprisinga polyacetal resin (A),a salt (B) consisting of a carboxylic acid and an alkaline-earth metal, anda rubber-containing graft polymer (C), whereinthe amount of formaldehyde in an ISO-527 type 1A test piece formed by injection molding the resin composition at a molding temperature of 205° C. according to a VDA 275 test is 0.10 ppm or less, andthe weight reduction rate of the resin composition measured by TG-DTA, after the resin composition has been retained under the air at 230° C. for 20 minutes, is 4% or less.2: A resin composition comprisinga polyacetal resin (A),a salt (B) consisting of a carboxylic acid and an alkaline-earth metal, anda rubber-containing graft polymer (C), whereinwhen 2 parts by mass of the salt (B) consisting of a carboxylic acid and an alkaline-earth metal is dissolved in 18 parts by mass of deionized water comprising a nonionic dispersant, the obtained solution has pH 8 to 12, anda content of sodium and potassium in the resin composition is 200 ppm or less.3: A powder (X) comprising a salt (B) consisting of a carboxylic acid and an alkaline-earth metal , and a rubber-containing graft polymer (C) , whereinwhen 2 parts by mass of the salt (B) consisting of a carboxylic acid and an alkaline-earth metal is dissolved in 18 parts by mass of deionized water comprising a nonionic dispersant, the obtained solution has pH 8 to 12, andthe content of sodium and potassium is 1500 ppm or less.4: A resin composition comprising a polyacetal resin ...

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01-02-2018 дата публикации

Alternative Methods to Control Crosslinking in High Impact Polystyrene

Номер: US20180030244A1
Принадлежит:

High impact polystyrene may be formed with increased swell index and reduced or eliminated discoloration. A process of forming high impact polystyrene may include providing a polymerization system including a polymerization reactor and a devolatilizer. High impact polystyrene may be formed in the polymerization reactor, and sent to the devolatilizer. A polar antioxidant having a hindered phenol structure and an aliphatic amine group, and with a phosphite antioxidant may be added to the polymerization system. In another process, a chemical retarder and a fluorescent whitening agent may be added to the polymerization system. In another process, a chemical retarder that inhibits free radical rubber crosslinking may be added to the polymerization system. 124.-. (canceled)25. A process comprising:providing a polymerization system comprising a polymerization reactor upstream of a devolatilizer;forming a high impact polystyrene within the polymerization reactor;sending the high impact polystyrene to the devolatilizer; andadding a chemical retarder to the polymerization system at or upstream of the devolatilizer, wherein the chemical retarder inhibits free radical rubber crosslinking in the devolatilizer.26. The process of claim 25 , wherein the chemical retarder is present in the high impact polystyrene an amount ranging from greater than 0 to 1000 ppm.27. The process of claim 25 , wherein the chemical retarder is an antioxidant and thermal stabilizer.28. The process of claim 25 , wherein the chemical retarder is multifunctional antioxidant.29. The process of claim 25 , wherein the chemical retarder is a sterically hindered phenolic antioxidant.30. The process of claim 25 , wherein the chemical retarder is a polymeric sterically hindered phenolic antioxidant.31. The process of claim 25 , wherein the chemical retarder is a butylated reaction product of p-cresol and dicyclopentadiene.33. The process of claim 25 , wherein the chemical retarder is 2 claim 25 ,6-di-tert-butyl-4 ...

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01-02-2018 дата публикации

ARTICLE COMPRISING PLATED COMPONENT

Номер: US20180030262A1
Автор: ABE Fumiaki
Принадлежит:

An article at least comprising two components contacting with each other, in which at least part of a surface of at least one of the two components being plated, is provided, which is excellent in plating adhesion and impact resistance and thus is hard to be damaged on the plated surface and excellent in appearance even when one of the two components is brought into contact with the plated part of the other component, and is preferably suppressed in occurrence of unpleasant sounds such as squeaking noise. At least one of the two components of the article is formed of a thermoplastic resin composition (X) comprising a rubber-reinforced aromatic vinyl resin (A) in at least part of the portion that contacts the plated portion of the other component. 1. An article at least comprising two components contacting with each other , at least part of a surface of each of the two components being plated , in which at least one of the two component comprises a portion that contacts with the plated portion of the other component , said portion being at least partly formed of a thermoplastic resin composition (X) comprising a rubber-reinforced aromatic vinyl resin (A).2. The article according to claim 1 , in which at least one of the two components is formed of the thermoplastic resin composition (X) as a whole or at the whole portion that contacts with the other component.3. The article according to claim 1 , in which the thermoplastic resin composition (X) has a rubber content of 3 to 60% by mass.4. The article according to claim 1 , in which the thermoplastic resin composition (X) has a melting point in a range of 0 to 130° C. as measured in accordance with JIS K 7121-1987.5. The article according to claim 4 , in which the rubber-reinforced aromatic vinyl resin (A) has a rubber part made from an ethylene/alpha-olefin rubber.6. The article according to claim 5 , in which the ethylene/alpha-olefin rubber has a melting point in a range of 0 to 130° C. as measured in accordance ...

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01-02-2018 дата публикации

POLYAMIDE 6 RESINS CONTAINING A LOW LEVEL OF POLYAMIDE 66 COMONOMER

Номер: US20180030271A1
Принадлежит:

Compositions of polyamide resins containing a low level of polyamide 66 comonomer are provided, which are useful in producing blown films. A method of forming a blown film includes: extruding a polyamide copolymer to form a polyamide film. The polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate where the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate. 1. A method of forming a blown film , the method comprising:extruding a polyamide copolymer to form a polyamide film, wherein the polyamide copolymer is formed from a mixture of caprolactam and hexamethylenediamine adipate, wherein the caprolactam comprises from 85 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.2. The method of claim 1 , wherein the caprolactam comprises from 90 mol. % to 99 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.3. The method of claim 1 , wherein the caprolactam comprises from 92 mol. % to 96 mol. % of the total moles of caprolactam and hexamethylenediamine adipate.4. The method of claim 1 , wherein the mixture of caprolactam and hexamethylenediamine adipate further comprises water.5. The method of claim 1 , where the polyamide copolymer is formed by polymerizing the mixture of caprolactam and hexamethylenediamine adipate in a continuous polymerization train.6. The method of claim 1 , further comprising:extruding a polyethylene polymer to form a polyethylene film, andcombining the polyamide film and polyethylene film to form a multilayer film.7. The method of claim 1 , where extruding the polyamide copolymer includes forming a bubble in the extruded polyamide copolymer by injecting air through an injection port and gathering the extruded polyamide copolymer with one or more rollers into the polyamide film.8. The method of claim 1 , wherein the polyamide copolymer has a crystallization temperature of 140° C. to 160° C.9 ...

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04-02-2021 дата публикации

Method for Obtaining Functionalised Polymer Particles

Номер: US20210032416A1

The present invention relates to a precipitation polymerization method for obtaining spherical polymer particles of a copolymer with statistical topology and chemical structure (acid monomer selected from acrylic or methacrylic)-co-(cross-linker selected from acrylic or methacrylic)-co-(hydroxylated monomer selected from acrylic or methacrylic) and which are functionalised with a divalent cation selected from Zn+2, Ca+2, Mg+2 and Sr+2 and/or an antibacterial agent. The invention also relates to said polymeric particles. The invention further relates to a composition comprising the polymeric particles and to the use of the particles to produce a drug.

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05-02-2015 дата публикации

Organic/Inorganic Composite, Manufacturing Method Therefor, Organic/Inorganic Composite Film, Manufacturing Method Therefor, Photonic Crystal, Coating Material, Thermoplastic Composition, Microstructure, Optical Material, Antireflection Member, and Optical Lens

Номер: US20150037535A1
Принадлежит: Asahi Kasei Chemicals Corp

The present invention relates to an organic-inorganic composite comprising an inorganic compound particle and a polymer attached to the inorganic compound particle, wherein a molecular weight distribution of the polymer is 2.3 or less, and a content of the inorganic compound particle is 96% by mass or less with respect to a total mass of the organic-inorganic composite. Moreover, the present invention relates to a photonic crystal, an organic-inorganic composite film, a coating material, and a thermoplastic composition comprising the organic-inorganic composite.

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11-02-2016 дата публикации

Impact strength modifier for chlorine-containing resin, chlorine-containing resin composition and molded body of chlorine-containing resin composition

Номер: US20160039963A1
Принадлежит: Mitsubishi Rayon Co Ltd

Disclosed is an impact strength modifier (α) for a chlorine-containing resin, comprising a powder of a graft copolymer (A) obtained by graft polymerizing one or more kinds of vinyl monomers (b1) onto a polyorganosiloxane rubber (A1) or a composite rubber (A2) containing a polyorganosiloxane rubber and a polyalkyl(meth)acrylate rubber, wherein the specific surface area of the powder of the graft copolymer (A) measured by a nitrogen gas adsorption method is from 0.6 to 30 m 2 /g, and the pH of water used for extraction under conditions, in which (1) in an oven at 180° C., 5.0 g of the powder of the graft copolymer (A) is left to stand still and heated for 15 minutes, and (2) after the heating, the powder is dispersed in 100 ml of heated pure water and extracted for 1 hour at 70° C. while stirring, is from 4 to 11.

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08-02-2018 дата публикации

LOW GLOSS ASA-BASED RESIN COMPOSITION HAVING EXCELLENT WEATHERABILITY AND HEAT RESISTANCE

Номер: US20180037730A1
Принадлежит:

A low gloss ASA-based resin composition having excellent weatherability and heat resistance is provided. The low gloss ASA-based resin composition is obtained by blending a general SAN copolymer, a heat-resistant SAN copolymer, a crosslinked aromatic vinyl compound-cyanide vinyl compound copolymer, and an amorphous inorganic material with large diameter and extra-large diameter ASA graft copolymers at a predetermined composition ratio. The low gloss ASA-based resin composition is useful in the manufacture of a high-quality molded article in which gloss characteristics are uniformly exhibited because impact resistance, heat resistance, flowability, weatherability, and low gloss characteristics are all excellent, and particularly, the gloss deviation on the entire surface of the injection molded article is significantly reduced. 1. A low gloss ASA-based resin composition comprising:(a) about 10 wt % to 40 wt % of an ASA graft copolymer comprising a large diameter acrylic rubber with an average particle diameter of about 3,000 to 5,000 Å as a core;(b) about 1 wt % to 20 wt % of an ASA graft copolymer comprising an extra-large diameter acrylic-based rubber with an average particle diameter of about 0.5 μm to 1.5 μm as a core;(c) about 20 wt % to 60 wt % of an SAN copolymer;(d) about 10 wt % to 40 wt % of a heat-resistant SAN copolymer;(e) about 1 wt % to 10 wt % of a crosslinked aromatic vinyl compound-cyanide vinyl compound copolymer; and(f) about 0.1 wt % to 5 wt % of an amorphous inorganic material.2. The low gloss ASA-based resin composition of claim 1 , wherein (a) the large diameter ASA graft copolymer or (b) the extra-large diameter ASA graft copolymer is prepared by an emulsion polymerization method claim 1 , and comprises an acrylic-based rubber as a core claim 1 , and a vinyl-based monomer is graft-polymerized on the surface of the core to form a shell.3. The low gloss ASA-based resin composition of claim 1 , wherein (a) the large diameter ASA graft copolymer ...

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08-02-2018 дата публикации

POLYACETAL RESIN COMPOSITION AND SLIDING MEMBER

Номер: US20180037732A1
Принадлежит:

A polyacetal resin composition which not only is highly inhibited from making creaking sounds but also has satisfactory performances with respect to other properties. The polyacetal resin composition includes 100 parts by weight of a polyacetal resin, 0.01-1 part by weight of a hindered phenolic antioxidant, 0.01-1 part by weight of a nitrogenous compound, 0.1-1 part by weight of a graft copolymer, 0.1-1 part by weight of a fatty acid ester, 0.5-5 parts by weight of a silicone oil, and 0.1-1 part by weight of calcium carbonate. The nitrogenous compound may be an aminotriazine compound, the graft copolymer includes an olefin-based polymer as the main chain and a vinyl-based polymer as side chains, the fatty acid ester includes a C12-32 fatty acid and a C2-30 mono- or polyhydric alcohol, and the calcium carbonate has an average particle diameter of 1 μm or smaller. 1. A polyacetal resin composition , comprising 100 parts by weight of a polyacetal resin (A) ,0.01 parts by weight to 1 part by weight of a hindered phenolic antioxidant (B),0.01 parts by weight to 1 part by weight of a nitrogenous compound (C),0.1 parts by weight to 1 part by weight of a graft copolymer (D),0.1 parts by weight to 1 part by weight of a fatty acid ester (E),0.5 parts by weight to 5 parts by weight of a silicone oil (F), and0.1 parts by weight to 1 part by weight of calcium carbonate (G), whereinthe nitrogenous compound (C) is at least one selected from the group consisting of an aminotriazine compound, a guanamine compound, a hydrazide compound, and a polyamide compound,the graft copolymer (D) has an olefin-based polymer (d1) as a main chain, and comprises a vinyl-based polymer (d2) as a side chain,the fatty acid ester (E) is constituted from a fatty acid with a carbon number of 12 to 32, and a monohydric or polyhydric alcohol with a carbon number of 2 to 30, and the calcium carbonate (G) has an average particle diameter of 1 μm or less.2. A polyacetal resin composition according to claim 1 ...

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08-02-2018 дата публикации

PRESSURE SENSITIVE COMPOSITIONS BASED ON A MODIFIED RUBBER POLYMER AQUEOUS DISPERSION

Номер: US20180037784A1
Принадлежит:

The invention relates to an aqueous polymer dispersion comprising: 1. An aqueous polymer dispersion comprising a mixture of:a) an aqueous polymer dispersion comprising grafted rubber polymeric particles from rubber polymer being selected from the group consisting of natural and synthetic rubber, [{'sub': 4', '10', 'b1, 'b1) a (meth)acrylate of a linear or branched alcohol in Cto Cor a mixture of such (meth)acrylates, said (meth)acrylate having Tglower than −30° C., and'}, {'sub': 'b2', 'b2) optionally, at least one comonomer having Tghigher than −30° C.,'}], 'b) an aqueous polymer dispersion with polymeric particles of a second polymer comprising monomeric units derived from a monomeric composition b) comprising'}with said grafted rubber polymeric particles being grafted in an aqueous dispersion by a part of said monomeric composition b) as defined above and with the said grafted part of monomeric composition b) on said rubber polymer a) representing from 25 to 50% w/w of the total weight of said monomeric composition b) involved in both grafted polymer a) and in polymer b).2. The dispersions according to claim 1 , wherein said rubber polymer a) is natural rubber.3. The dispersion according to claim 1 , wherein said rubber polymer a) is synthetic rubber and selected from the group consisting of: polyisoprene claim 1 , polybutadiene and their copolymers isoprene-butadiene and from other copolymers of isoprene and of butadiene.4. The dispersion according to wherein a weight proportion of said rubber polymer a) claim 1 , without grafted monomers claim 1 , with respect to the global weight of a) b) claim 1 , represents from 5 to 45%.5. The dispersion according to wherein b1) is selected from the group consisting of: butyl (meth)acrylate claim 1 , 2-ethyl hexyl (meth)acrylate claim 1 , 2-octyl (meth)acrylate claim 1 , isooctyl (meth)acrylate claim 1 , nonyl(meth)acrylate claim 1 , decyl (meth)acrylate claim 1 , and a mixture of at least two or of at least three of said ...

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24-02-2022 дата публикации

COMPOSITIONS AND METHODS OF MAKING THERMOSET FOAMS FOR SHOE SOLES

Номер: US20220056257A1
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

A footwear article is provided. The footwear article includes a shoe sole. The shoe sole includes a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm, the crosslinked foam polyolefin elastomer including: a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof; an ethylene vinyl acetate (EVA) copolymer; a crosslinker; a condensation catalyst; and a foaming agent. The shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.). 1. A crosslinked foam polyolefin elastomer composition prepared by the process comprising:mixing or dry blending a silane-grafted polyolefin elastomer, a crosslinker, an ethylene vinyl acetate copolymer, and a blowing agent, to form a crosslinkable polyolefin blend, andmolding the crosslinkable polyolefin blend to form the crosslinked foam polyolefin elastomer composition.2. The crosslinked foam polyolefin elastomer composition of wherein the silane-grafted polyolefin elastomer was prepared using a silane crosslinker selected from vinyltrimethoxy silane (VTMO) claim 1 , vinyltriethoxy silane (VTEO) and a combination thereof.3. The crosslinked foam polyolefin elastomer composition of wherein the ethylene vinyl acetate copolymer also has silicone oil.4. The crosslinked foam polyolefin elastomer composition of wherein the molding is compression molding or injection molding.5. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the crosslinker comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides.6. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the expansion ratio of the composition is from about 136% to about 178% claim 1 , and wherein the specific gravity of the composition is from ...

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12-02-2015 дата публикации

METHOD FOR PRODUCING THERMOPLASTIC ELASTOMER COMPOSITION

Номер: US20150045511A1
Автор: Tomoi Shusaku
Принадлежит: THE YOKOHAMA RUBBER CO., LTD.

A method for producing a thermoplastic elastomer composition including a thermoplastic resin composition as a continuous phase and also including a modified elastomer dispersed into the continuous phase as a dispersed phase, wherein the method comprises, in the stated order: (1) a step for reacting a polyamide resin and an epoxy group-containing polymer together to generate an end-capped polyamide resin; (2) a step for adding EVOH and a modified elastomer to the product obtained in step (1); (3) a step for dispersing the EVOH into the product obtained in step (1); (4) a step for adding a cross-linking agent for cross-linking the modified elastomer to the dispersion obtained in step (3); and (5) a step for cross-linking the modified elastomer using the cross-linking agent; and wherein the thermoplastic resin composition comprises EVOH and an end-capped polyamide resin. 2. The process according to claim 1 , wherein steps (1) to (5) are carried out by using a twin-screw kneading extruder having: a first kneading section for carrying out step (1),', 'a second kneading section for carrying out step (3), and', 'a third kneading section for carrying out step (5),, 'at least three kneading sections comprisinga first feeding port for a polyamide and an epoxy group-containing polyamide, located on the upstream side in the extrusion direction from the first kneading section,a second feeding port for an ethylene-vinyl alcohol copolymer and a modified-elastomer, located between the first and second kneading sections, anda third feeding port for a crosslinking agent, located between the second and third kneading sections.3. The process according to claim 1 , wherein the epoxy group-containing polymer is selected from the group consisting of ethylene-glycidyl methacrylate copolymer claim 1 , ethylene-glycidyl methacrylate-vinyl acetate copolymer claim 1 , ethylene-glycidyl methacrylate-methyl acrylate copolymer claim 1 , ethylene-glycidyl methacrylate-ethyl acrylate copolymer ...

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12-02-2015 дата публикации

Nanoparticles with Multiple Attached Polymer Assemblies and Use Thereof in Polymer Composites

Номер: US20150045516A1
Принадлежит:

Methods of synthesizing a binary polymer functionalized nanoparticle are generally provided. In one embodiment, a first anchoring compound is attached to a nanoparticle, and a first plurality of first monomers are polymerized on the first anchoring compound to form a first polymeric chain covalently bonded to the nanoparticle via the first anchoring compound. In another embodiment, a first polymeric chain can be attached to the nanoparticle, where the first polymeric chain has been polymerized prior to attachment to the nanoparticle. Thereafter, a second anchoring compound is attached to the nanoparticle, and a second plurality of second monomers are polymerized on the second anchoring compound to form a second polymeric chain covalently bonded to the nanoparticle via the second anchoring compound. Nanoparticles are also generally provided having multiple polymeric assemblies. 1. A method of synthesizing a binary polymer functionalized nanoparticle , the method comprising:attaching a first polymeric chain to the nanoparticle, wherein the first polymeric chain has been polymerized prior to attachment to the nanoparticle;thereafter, attaching a second anchoring compound to the nanoparticle;polymerizing a second plurality of second monomers on the second anchoring compound to form a second polymeric chain covalently bonded to the nanoparticle via the second anchoring compound.2. The method as in claim 1 , wherein the first polymeric chain is covalently bonded directly to the nanoparticle.3. The method as in claim 1 , further comprising:prior to attachment of the first polymeric chain, attaching a first anchoring compound to a nanoparticle, such that the first polymeric chain is attached to the nanoparticle via the first anchoring compound.4. The method as in claim 1 , further comprising:deactivating the first polymeric chain after attaching the first polymeric chain to the nanoparticle and prior to attaching the second anchoring compound to the nanoparticle.5. The ...

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06-02-2020 дата публикации

Thermoplastic Resin Composition, and Molded Product Produced Therefrom

Номер: US20200040181A1
Принадлежит: Lotte Advanced Materials Co Ltd

This thermoplastic resin composition of the present invention comprises: approximately 100 parts by weight of a polycarbonate resin; approximately 1 to approximately 20 parts by weight of a rubber-modified vinyl-based copolymer resin; approximately 10 to approximately 30 parts by weight of a phosphorous-based flame retardant agent; approximately 3 to approximately 12 parts by weight of calcium carbonate; approximately 10 to approximately 40 parts by weight of talc; approximately 5 to approximately 11 parts by weight of wollastonite; and approximately 0.01 to approximately 5 parts by weight of a black pigment. The weight ratio of the calcium carbonate to the talc is approximately 1:1.5 to approximately 1:3.5, and the weight ratio of the talc to the wollastonite is approximately 1:0.3 to approximately 1:0.7. The thermoplastic resin composition can exhibit the properties of high gloss and a good outer appearance, and has excellent fluidity, impact resistance, heat resistance, thin film flame retardancy, and dimensional stability.

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18-02-2021 дата публикации

Flame-resistant filling-material-reinforced polycarbonate composition having a reduced bisphenol-a content

Номер: US20210047512A1
Принадлежит: Covestro Deutschland AG

A composition for production of a thermoplastic moulding compound, wherein the composition comprises the following constituents: A) 45.0% to 95.0% by weight of at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyestercarbonate and aromatic polyester, B) 1.0% to 35.0% by weight of polymer free of epoxy groups, consisting of B1) rubber-modified graft polymer and B2) optionally rubber-free vinyl (co)polymer, C) 0.1% to 10.0% by weight of a polymer comprising structural elements that derive from styrene and an epoxy-comprising vinyl monomer, D) 1.0% to 20.0% by weight of phosphorus-comprising flame retardant, E) 1.0% to 35.0% by weight of filler, and F) 0.1% to 10.0% by weight of additives, wherein component C has a weight ratio of structural elements that derive from styrene to those that derive from epoxy-comprising vinyl monomers of 100:1 to 1:1. Related processes, compounds, and moulded articles are also provided.

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18-02-2016 дата публикации

Maleic Anhydride Grafted LLDPE Having High Melt Index

Номер: US20160046736A1
Принадлежит:

Disclosed is a linear low-density polyethylene grafted with maleic anhydride (MAH-g-LLDPE). The MAH-g-LLDPE has a unique combination of properties including a low density and a high melt index. 1. A linear low-density polyethylene (LLDPE) grafted with maleic anhydride (MAH-g-LLDPE) ,wherein the MAH-g-LLDPE has a melt index (MI) of 250 to 800 g/10 minutes and comprises 0.01 to 3 weight percent of maleic anhydride, based on the total weight of the MAH-g-LLDPE.2. The MAH-g-LLDPE according to claim 1 , which comprises 0.1 to 2 weight percent of maleic anhydride.3. The MAH-g-LLDPE according to claim 1 , which comprises 0.5 to 1.5 weight percent of maleic anhydride.4. The MAH-g-LLDPE according to claim 1 , wherein the LLDPE has a density of 0.880 to 0.925 g/cm.5. The MAH-g-LLDPE according to claim 1 , wherein the LLDPE is a copolymer of ethylene and 1-butene claim 1 , 1-hexene claim 1 , 1-octene claim 1 , or mixtures thereof.6. The MAH-g-LLDPE according to claim 1 , wherein the LLDPE has an MI of 0.5 to 10 g/10 minutes.7. The MAH-g-LLDPE according to claim 1 , which has an MI of 300 to 800 g/10 minutes.8. The MAH-g-LLDPE according to claim 1 , which has an MI of 350 to 800 g/10 minutes.9. An adhesive composition which comprises the MAH-g-LLDPE according to .10. The adhesive composition according to claim 9 , which is a hot melt adhesive.11. A hot melt adhesive comprising:(a) a linear low-density polyethylene (LLDPE) grafted with maleic anhydride (MAH-g-LLDPE);(b) a tackifier resin; and(c) a wax,wherein the MAH-g-LLDPE has a melt index (MI) of 250 to 800 g/10 minutes and comprises 0.01 to 3 weight percent of maleic anhydride, based on the weight of the MAH-g-LLDPE.12. The hot melt adhesive according to claim 11 , wherein the MAH-g-LLDPE comprises 0.5 to 1.5 weight percent of maleic anhydride.13. The hot melt adhesive according to claim 11 , wherein the LLDPE has a density of 0.880 to 0.925 g/cm.14. The hot melt adhesive according to claim 11 , wherein the LLDPE is a ...

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01-05-2014 дата публикации

Propylene Copolymer Compositions and Processes to Produce Them

Номер: US20140121325A1
Принадлежит:

This invention relates to a process for producing propylene-based in-reactor compositions comprising: (a) contacting propylene and from about 0 wt % to 10 wt % Cand/or Cto Calpha olefins under polymerization conditions in a first stage to form Component A; (b) contacting Component A, ethylene and from about 3 wt % to 30 wt % of one or more Cto Calpha olefin, in the presence of a metallocene catalyst system, under polymerization conditions in a second stage to form Component B; wherein the metallocene catalyst system comprises: (i) a metallocene compound comprising a group 4, 5, or 6 metal, (ii) an activator, and (iii) a support material; and (c) obtaining a propylene-based in-reactor composition comprising Component A and Component B, wherein the propylene-based in-reactor composition has a multimodal melting point. Propylene-based in-reactor compositions and articles comprising these propylene compositions are also disclosed. 1. A process for producing propylene-based in-reactor compositions comprising:{'sub': 2', '4', '20, '(a) contacting propylene and from about 0 wt % to 10 wt % Cand/or Cto Calpha olefins under polymerization conditions in a first stage to form Component A;'}{'sub': 3', '20, '(b) contacting Component A, ethylene, and from about 3 wt % to 30 wt % of one or more Cto Calpha olefin, in the presence of a metallocene catalyst system, under polymerization conditions in a second stage, to form Component B;'}wherein the metallocene catalyst system comprises:(i) a metallocene compound comprising a group 4, 5, or 6 metal;(ii) an activator;(iii) a support material; and(c) obtaining a propylene-based in-reactor composition comprising Component A and Component B; wherein the propylene-based in-reactor composition has a multimodal melting point.2. The process of claim 1 , wherein Component A is produced by a metallocene catalyst system which may be the same as or different from the metallocene catalyst system of step (b) claim 1 , wherein the metallocene ...

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15-02-2018 дата публикации

NON-REACTIVE, HYDROPHILIC POLYMERS HAVING TERMINAL SILOXANES AND METHODS FOR MAKING AND USING THE SAME

Номер: US20180044518A1
Принадлежит:

The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation. 134-. (canceled)35. An ophthalmic solution comprising at least one stable , non-reactive hydrophilic polymer comprising in said polymer's backbone , a hydrophilic segment having a degree of polymerization of about 300 to about 10 ,000 , and a linear silicone segment at at least one terminal end of said non-reactive hydrophilic polymer , wherein said silicone segment comprises between about 6 and about 200 siloxy units , wherein said non-reactive hydrophilic polymer is present in a contact angle reducing amount and said ophthalmic solution is transparent.36. The ophthalmic solution of wherein said at least one stable claim 35 , non-reactive hydrophilic polymer comprises 6 to 60 siloxy repeat units.37. The ophthalmic solution of wherein said at least one stable claim 35 , non-reactive hydrophilic polymer further comprises 6 to 20 siloxy repeat units.38. The ophthalmic solution of wherein said at least one stable claim 35 , non-reactive hydrophilic polymer is present in an amount between about 0.005 and about 2%.39. The ophthalmic solution of wherein said at least one stable claim 35 , non-reactive hydrophilic polymer is present in an amount between about 0.01 and about 0.5 weight %.40. The ophthalmic solution of wherein said at least one stable ...

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03-03-2022 дата публикации

EXTRUDABLE HALOGEN-FREE, FLAME RETARDANT COMPOSITIONS

Номер: US20220064421A1
Принадлежит: Dow Global Technologies LLC

The present disclosure provides embodiments of a halogen-free flame retardant composition including one or more polyolefin copolymers having a melt flow index of 350 grams per 10 minutes (g/10 min) to 1000 g/10 min measured at 190 C and 2.16 kg, wherein the one or more polyolefin copolymers comprises maleic anhydride-grafted polyolefin, ethylene-vinyl acetate copolymer, or both; and greater than 83 wt. % of inorganic fillers based on the total weight of the halogen-free flame retardant composition. 1. A halogen-free flame retardant composition comprising:one or more polyolefin copolymers having a melt flow index of 350 grams per 10 minutes (g/10 min) to 1000 g/10 min measured at 190° C. and 2.16 kg, wherein the one or more polyolefin copolymers comprise one or more of maleic anhydride-grafted polyolefin and ethylene-vinyl acetate copolymer; andat least 83 wt. % inorganic fillers based on the total weight of the halogen-free flame retardant composition.2. The halogen-free flame retardant composition of claim 1 , wherein the halogen-free flame retardant composition comprises less than 17 wt. % of the one or more polyolefin copolymers.3. The halogen-free flame retardant composition of claim 1 , wherein the halogen-free flame retardant composition comprises at least 85 wt. % inorganic fillers based on the total weight of the halogen-free flame retardant composition.4. The halogen-free flame retardant composition of claim 1 , wherein the one or more ethylene copolymers comprises an ethylene-vinyl acetate copolymer.5. The halogen-free flame retardant composition of claim 1 , wherein the composition has a fuel load of the less than 3 MJ/kg when measured according to EN ISO 1716.6. The halogen-free flame retardant composition of claim 1 , wherein the composition has a temperature rise of the furnace of less than or equal to about 50° C. claim 1 , a mass loss of the specimen of less than or about equal to 50% claim 1 , and a time of sustained flaming of the specimen of about ...

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03-03-2022 дата публикации

Thermoplastic Resin Composition and Article Produced Therefrom

Номер: US20220064438A1
Принадлежит:

A thermoplastic resin composition of the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 1 part by weight to about 5 parts by weight of a silicone-based rubber modified vinyl graft copolymer; and about 0.03 parts by weight to about 0.2 parts by weight of a metallic salt compound; wherein the metallic salt compound comprises a compound represented by the Formula 1, a compound represented by the Formula 2 and/or a compound represented by the Formula 3 as defined herein. The thermoplastic resin composition can have good properties in terms of impact resistance, impact resistance after ultrasonic welding, flame retardancy, heat resistance, and the like. 2. The thermoplastic resin composition according to claim 1 , wherein the silicone-based rubber modified vinyl graft copolymer is obtained by graft polymerization of an alkyl(meth)acrylate monomer to a silicone-based rubber polymer.3. The thermoplastic resin composition according to claim 1 , wherein the metallic salt compound is a mixture of about 80 wt % to about 95 wt % of the compound represented by the Formula 1 and about 5 wt % to about 20 wt % of the compound represented by the Formula 2.4. The thermoplastic resin composition according to claim 1 , wherein the metallic salt compound is the compound represented by the Formula 3.5. The thermoplastic resin composition according to claim 1 , wherein the silicone-based rubber modified vinyl graft copolymer and the metallic salt compound are present in a weight ratio of about 5:1 to about 80:1.6. The thermoplastic resin composition according to claim 1 , wherein the thermoplastic resin composition has a Notched Izod impact strength of about 55 kgf·cm/cm to about 80 kgf·cm/cm claim 1 , as measured on a ⅛″ thick specimen in accordance with ASTM D256.7. The thermoplastic resin composition according to claim 1 , wherein the thermoplastic resin composition has a fracture height of about 40 cm to about 80 cm claim 1 , as measured on a 1 ...

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25-02-2016 дата публикации

Resin composition and film thereof

Номер: US20160053104A1
Принадлежит: Kaneka Corp

An object of the present invention is to provide a resin material capable of producing a molded body having few defects due to foreign substances, having high mechanical strength, very small in both orientation birefringence and photoelastic birefringence, and having high transparency, and having high transparency even when such a resin material is stretched. Provided is a resin composition containing a resin (A) and a multilayer structure polymer (B), wherein the multilayer structure polymer (B) has a crosslinked polymer layer and a hard polymer layer, and the hard polymer layer has at least two different hard polymer layers, at least one of which is a hard polymer layer (C) opposite in sign of a photoelastic constant to that of the resin (A).

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25-02-2016 дата публикации

NANOSTRUCTURED THERMOPLASTIC POLYAMIDE-GRAFTED POLYOLEFIN COMPOSITION

Номер: US20160053105A1
Принадлежит: Arkema France

A composition including at least two grafted copolymers, having a polyolefin trunk and polyamide grafts, the polyamide grafts being 15% to 25% by weight of the composition. Also, a multilayered structure including a plurality of adjacent layers, at least one of which has the above composition. The first grafted copolymer is a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and a plurality of polyamide grafts, the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (X). The second copolymer is a grafted elastomeric copolymer of a polyolefin backbone. 1. A thermoplastic composition consisting of a first copolymer and a second elastomeric copolymer , these two copolymers being grafted by a plurality of polyamide grafts , the composition optionally comprising a third copolymer of a different nature than the first two copolymers and/or at least one functional adjuvant , wherein:the first grafted copolymer consists of a polyolefin backbone containing a residue of at least one unsaturated monomer (X) and a plurality of polyamide grafts, the polyamide grafts are attached to the polyolefin backbone by the residue of the unsaturated monomer (X) comprising a function capable of reacting by a condensation reaction with a polyamide having at least one amine end group and/or at least one carboxylic acid end group, the residue of the unsaturated monomer (X) is fixed to the backbone by grafting or copolymerization; andthe second copolymer consists of a grafted elastomeric copolymer consisting of a polyolefin backbone selected from a maleicized ethylene-propylene copolymer, a maleicized ethylene-butene copolymer, a maleicized ethylene-hexene copolymer, a maleicized ethylene-octene copolymer, a maleicized ethylene-methyl acrylate copolymer, and a plurality of polyamide grafts; between 10% and 70% by weight of the composition for the polyolefin backbone of the abovementioned first copolymer,', 'between 10% ...

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25-02-2016 дата публикации

RESIN COMPOSITION AND MOLDED ARTICLE

Номер: US20160053114A1
Автор: YAMAGUCHI Toru
Принадлежит: ASAHI KASEI CHEMICALS CORPORATION

A resin composition contains: 60 to 95% by mass of polyphenylene ether (A); 35 to 0% by mass of styrene-based resin (B); and 15 to 5% by mass of elastomer component (C). The component (C) is present as dispersion particles in the resin composition. The dispersion particles have a number average particle size of 0.04 to 0.25 μm. 1. (canceled)2. A resin composition comprising:60 to 95% by mass of polyphenylene ether (A);35 to 0% by mass of styrene-based resin (B); and15 to 5% by mass of elastomer component (C),wherein the elastomer component (C) is present as dispersion particles in the resin composition; and{'sup': '2', 'the dispersion particles have a number average particle size of 0.04 to 0.25 μm; and the dispersion particles having a particle size of greater than 1.0 μm are not present and the number of the dispersion particles having a particle size of 0.5 to 1.0 μm is 3 or less in an area corresponding to 396 μmas measured by transmission electron microscopy.'}3. The resin composition according to claim 2 , wherein the elastomer component (C) comprises an oil-extended styrene block-hydrogenated conjugated diene compound block copolymer.4. The resin composition according to claim 2 , wherein the elastomer component (C) comprises an oil-extended styrene block-hydrogenated conjugated diene compound block copolymer having an oil-extended amount of 20 to 50% by mass.5. The resin composition according to claim 3 , wherein the elastomer component (C) comprises the oil-extended styrene block-hydrogenated conjugated diene compound block copolymer having an oil-extended amount of 20 to 50% by mass and an olefin-based elastomer in a mass ratio of (the oil-extended styrene block-hydrogenated conjugated diene compound block copolymer having an oil-extended amount of 20 to 50% by mass:the olefin-based elastomer)=9:1 to 3:7.6. The resin composition according to claim 3 , wherein the resin composition comprises 15 to 100 parts by mass of an oil based on 100 parts by mass of ...

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10-03-2022 дата публикации

CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF, AND METHOD FOR PRODUCING THREE-DIMENSIONAL SHAPED PRODUCT

Номер: US20220073725A1
Принадлежит:

To provide a low-viscosity curable resin composition capable of obtaining a cured product excellent in impact resistance. The curable resin composition contains core-shell type rubber particles, a radically polymerizable compound having one or more radically polymerizable functional groups in the molecule, and a radical polymerization initiator, and the core-shell type rubber particles have a core layer and a shell layer containing a polymer having an alicyclic hydrocarbon group in a side chain, and the radically polymerizable compound contains a radically polymerizable compound having a molecular weight of 500 or more in a ratio of 2 mass % to 70 mass %. 1. A curable resin composition comprisinga core-shell type rubber particle;a radically polymerizable compound having one or more radically polymerizable functional groups in the molecule;a radical polymerization initiator,wherein the core-shell type rubber particle has a core layer and a shell layer containing a polymer having an alicyclic hydrocarbon group in a side chain, andwherein the curable resin composition contains a radically polymerizable compound having a molecular weight of 500 or more in a ratio of 2 mass % or more and 70 mass % or less.2. The curable resin composition according to claim 1 , wherein the radically polymerizable compound contains less than 50 mass % of a (meth) acrylate compound having an alicyclic hydrocarbon group.3. The curable resin composition according to claim 1 , wherein the radically polymerizable compound having a molecular weight of 500 or more is a polyfunctional urethane (meth)acrylate having at least 2 (meth)acryloyl groups and at least 2 urethane groups.4. The curable resin composition according to claim 1 , wherein a content of the core-shell type rubber particle is 7 parts by mass or more and 65 parts by mass or less based on 100 parts by mass of the radically polymerizable compound.5. The curable resin composition according to claim 1 , wherein the core-shell type ...

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10-03-2022 дата публикации

POLYPROPYLENE BOARD AND METHOD FOR PREPARING SAME

Номер: US20220073726A1
Принадлежит:

The disclosure relates to the manufacturing of floors, and more particularly to a polypropylene board and a method for preparing the same. The polypropylene board is prepared from 25-40 parts by weight of a modified polypropylene resin, 30-70 parts by weight of a filler, 3-10 parts by weight of a stabilizer and 1-8 parts by weight of a lubricant. A melt flow rate of the modified polypropylene resin is 2-9 g/10 min. 1. A polypropylene board , wherein the polypropylene board is prepared from 25-40 parts by weight of a modified polypropylene resin , 30-70 parts by weight of a filler , 3-10 parts by weight of a stabilizer and 1-8 parts by weight of a lubricant; and a melt flow rate of the modified polypropylene resin is 2-9 g/10 min.2. The polypropylene board of claim 1 , wherein the polypropylene board is prepared from 30-36 parts by weight of the modified polypropylene resin claim 1 , 30-70 parts by weight of the filler claim 1 , 5-8 parts by weight of the stabilizer and 2-5 parts by weight of the lubricant; and the melt flow rate of the modified polypropylene resin is 4-7 g/10 min.3. The polypropylene board of claim 1 , wherein the modified polypropylene resin is selected from the group consisting of a polyolefin-modified polypropylene resin claim 1 , an acrylic acid-grafted polypropylene resin and a combination thereof.4. The polypropylene board of claim 3 , wherein the modified polypropylene resin comprises 15-18 parts by weight of the polyolefin-modified polypropylene resin and 15-18 parts by weight of the acrylic acid-grafted polypropylene resin; and a model of the polyolefin-modified polypropylene resin is VM3588 claim 3 , and a model of the acrylic acid-grafted polypropylene resin is VM3980.5. The polypropylene board of claim 1 , wherein the filler is selected from the group consisting of calcium carbonate claim 1 , kaolin claim 1 , ferric oxide and a combination thereof; and a fineness of the filler is 400-800 mesh.6. The polypropylene board of claim 1 , ...

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03-03-2016 дата публикации

PROPYLENE BASED RESIN COMPOSITION AND USE THEREOF

Номер: US20160060443A1
Принадлежит: Mitsui Chemicals, Inc.

Means for solving the problems 1. A thermoplastic resin composition (X2) comprising (A2) , (B2) , (C2) , (D2) , and (E2) below:5 to 95 wt % of a propylene/α-olefin copolymer (B2) whose melting point is not higher than 100° C. or not observed when measured with a differential scanning calorimeter (DSC);5 to 95 wt % of a styrene-based elastomer (C2);0 to 90 wt % of an isotactic polypropylene (A2);{'sup': '3', '0 to 70 wt % of an ethylene/α-olefin copolymer (D2) whose density is in the range of 0.850 to 0.910 g/cm,'}wherein the total of (A2), (B2), (C2), and (D2) is 100 wt %; anda softener (E2) in an amount of 0 to 400 parts by weight relative to 100 parts by weight of the total of (A2), (B2), (C2), and (D2).2. The thermoplastic resin composition (X2) according to claim 1 , wherein the propylene/α-olefin copolymer (B2) is a copolymer of propylene and at least one C-Cα-olefin.3. The thermoplastic resin composition (X2) according to claim 1 , wherein the propylene/α-olefin copolymer (B2) is a propylene/1-butene copolymer whose molecular weight distribution (Mw/Mn) is 3 or less as measured by gel permeation chromatography (GPC).4. The thermoplastic resin composition (X2) according to claim 1 , wherein the propylene/α-olefin copolymer (B2) is obtained by polymerization using a metallocene catalyst.5. A crosslinked product of the thermoplastic resin composition (X2) obtained by crosslinking the thermoplastic resin composition (X2) according to .6. A molded article made of the thermoplastic resin composition (X2) according to .7. A molded article made of the crosslinked product according to .8. A molded article made of a crosslinked product of the thermoplastic resin composition (X2) obtained by crosslinking the thermoplastic resin composition (X2) according to claim 5 , obtained by further crosslinking a molded article made of the thermoplastic resin composition (X2) according to . This application is a Divisional application of U.S. Ser. No. 13/619,135 filed Sep. 14, 2012; ...

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03-03-2016 дата публикации

Contacting component and structure containing said contacting component

Номер: US20160060445A1
Принадлежит: Techno Polymer Co Ltd

A contacting component and a structure including the contacting component are provided which are not only reduced in squeaking noises that are generated when comes into contact with and rubs against other members, but also superior in appearance of matting property. The contacting component comprises a molded article made from a thermoplastic resin composition (X) containing a vinyl graft polymer (A), a vinyl non-graft polymer (B) and a matting agent (C), wherein the vinyl graft polymer (A) contains an ethylene-α-olefin rubber polymer (a1), and the structure comprises the contacting component.

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15-05-2014 дата публикации

OLEFIN-BASED IONOMER RESIN COMPOSITION

Номер: US20140135445A1
Принадлежит: LG CHEM, LTD.

The present application relates to an olefin-based ionomer resin composition, to an encapsulant, and to an optoelectronic device. The resin composition according to the present application may be used as an encapsulant for a variety of optoelectronic devices, and may exhibit superior adhesion to the substrates of the optoelectronic devices. In addition, according to the present application, an olefin-based ionomer resin composition, which can provide good workability and economic advantages in the manufacture of devices without negatively affecting components such as encapsulated optoelectronic elements or the wired electrodes of optoelectronic devices, may be provided. 1. An olefin-based ionomer resin composition comprising:a modified olefin copolymer having two or more functional groups which includes a carboxyl group,wherein the modified olefin copolymer is a graft copolymer in which an ethylenically unsaturated silane compound as a first monomer and a-monomer having an ethylenically unsaturated double bond as a second monomer are grafted to a polyolefin, and a part or whole of the carboxyl group in the olefin-based ionomer resin composition is neutralized with metal ions.2. The olefin-based ionomer resin composition of claim 1 , wherein the second monomer is an acid anhydride-based monomer claim 1 , (meth)acrylic acid claim 1 , an alkyl(meth)acrylate claim 1 , glycidyl(meth)acrylate claim 1 , 2-hydroxyethyl(meth)acrylate claim 1 , polyethylene glycol(meth)acrylate claim 1 , vinyl sulfonic acid claim 1 , a vinyl sulfonic acid alkyl ester claim 1 , vinyl phosphoric acid claim 1 , a vinyl phosphoric acid alkyl ester claim 1 , or N-(hydroxymethyl)acrylamide.3. The olefin-based ionomer resin composition of claim 2 , wherein the second monomer is maleic acid anhydride claim 2 , (meth)acrylic acid claim 2 , methyl(meth)acrylate claim 2 , glycidyl(meth)acrylate claim 2 , 2-hydroxyethyl(meth)acrylate claim 2 , polyethylene glycol(meth)acrylate claim 2 , vinyl sulfonic ...

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21-02-2019 дата публикации

POLYPHENYLENE OXIDE-GRAFTED ACRYLIC ADHESIVE

Номер: US20190055434A1
Принадлежит:

An adhesive copolymer comprising acrylate ester monomer units, poly(phenyleneoxide)-functional (meth)acryloyl monomer units, optional acid-functional monomer units, and optional non-acid functional polar monomer units is described. 119-. (canceled)20. A pressure sensitive adhesive composition comprising a poly(phenyleneoxide)-grafted (meth)acrylate copolymer. {'br': None, 'sup': Ester', 'PPO', 'acid', 'polar, 'sub': a', 'b', 'c', 'd, '˜[M]-[M]-[M]-[M]˜, wherein'}, 'wherein the copolymer is of the formula{'sup': 'Ester', '[M] represents (meth)acrylate ester monomer units wherein subscript a is 80-99.9 parts by weight;'}{'sup': 'PPO', '[M] represents poly(phenyleneoxide) functional monomer units wherein subscript b is 0.1-10 parts by weight;'}{'sup': 'acid', '[M] represents acid functional monomer units wherein subscript c is 0-15 parts by weight;'}{'sup': 'polar', '[M] represents non-acid-functional polar monomer units wherein subscript d is 0 to 10 parts by weight;'}wherein the sum of a to d is 100 parts by weight.21. The composition of wherein subscript a is 80 to 95 parts by weight.22. The composition of wherein the (meth)acrylate ester monomer include high T(meth)acrylate ester monomers in amounts of up to 30 parts by weight of the 80 to 99.5 parts by weight of (meth)acrylate ester monomer component claim 20 , said high Tmonomers having a Tof at least 25° C.23. The composition of wherein subscript b is 0.1-5 parts by weight.24. The composition of wherein subscript c is 0.5 to 5 parts by weight.25. The composition of wherein subscript d is 0.5 to 5 parts by weight.27. The composition of further comprising a tackifier in amounts of 1 to 80 wt. % claim 20 , based on the total weight percent of the adhesive composition.28. The composition of containing no chemical crosslinking agent.29. An adhesive article comprising a layer of the adhesive composition of on a substrate.30. A method of preparing the adhesive copolymer of by free-radical polymerization of acrylate ...

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01-03-2018 дата публикации

Isotactic polypropylene based composite

Номер: US20180057642A1

This invention relates to a process for producing an isotactic polypropylene based composite, comprising: reactive blending of isotactic polypropylene homo-polymer; polypropylene grafted with a carboxylic anhydride or a furan type moiety such as maleic anhydride grafted polypropylene; and an amino silane such as (3-aminopropyl)triethoxysilane to produce an isotactic polypropylene based composite such that the crystallization temperature of the isotactic polypropylene based composite is in a range of about 120° C. to about 126° C. The reactive blending can further take place in the presence of an organically modified nanoclay.

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01-03-2018 дата публикации

IMPACT MODIFIED STYRENIC POLYMERS WITH IMPROVED ENVIRONMENTAL STRESS CRACK RESISTANCE PROPERTIES

Номер: US20180057681A1
Принадлежит:

Polymer blends comprising components A), B) and C): A) 80 to 96% by weight of an impact modified styrenic polymer A), B) 1 to 7% by weight of a polymer blend B) comprising B1) 25 to 75% by weight of polyisobutylene and B2) 25 to 75% by weight of a polyolefin, C) 3 to 13% by weight of an elastomeric block copolymer C) of structure (A-(B/A))-A, where A is a vinylaromatic block, (B/A) is a random copolymer block of vinylaromatic monomer and diene, and n is 1 to 10, exhibit improved environmental stress crack resistance properties in presence of hydrofluoro olefins. 114-. (canceled)16. The polymer blend according to claim 15 , comprising components A) claim 15 , B) claim 15 , and C) in the following amounts:A) 84 to 94% by weight of the impact modified styrenic polymer A), comprising a styrenic polymer and an impact modifying polymer, in particular HIPS; B1) 25 to 75% by weight of polyisobutylene B1), and', 'B2) 25 to 75% by weight of the polyolefin B2), in particular LDPE and/or LLDPE,, 'B) 1.5 to 6.5% by weight of a polymer blend B), comprising'}C) 4 to 11% by weight of the elastomeric block copolymer C).17. The polymer blend according to claim 15 , comprising components A) claim 15 , B) claim 15 , and C) in the following amounts:A) 84.5 to 93% by weight of the impact modified styrenic polymer A), comprising a styrenic polymer and an impact modifying polymer, in particular HIPS; B1) 25 to 75% by weight of polyisobutylene B1), and', 'B2) 25 to 75% by weight of the polyolefin B2), in particular LDPE and/or LLDPE,, 'B) 2 to 6% by weight of a polymer blend B), comprising'}C) 4.5 to 10.5% by weight of the elastomeric block copolymer C).18. The polymer blend according to claim 15 , comprising components A) claim 15 , B) claim 15 , and C) in the following amounts:A) 85 to 92.5% by weight of the impact modified styrenic polymer A), comprising a styrenic polymer and an impact modifying polymer, in particular HIPS; B1) 25 to 75% by weight of polyisobutylene B1), and', 'B2) 25 ...

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22-05-2014 дата публикации

Polypropylene and polylactic acid blends of injection stretch blow molding applications

Номер: US20140141189A1
Принадлежит: Fina Technology Inc

Injection stretch blow molded (ISBM) articles containing a bio-based polymers and methods of forming the same are described herein. The method generally includes providing a propylene-based polymer; contacting the propylene-based polymer with polylactic acid to form a polymeric blend; injection molding the blend into a preform; and stretch-blowing the preform into an article.

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27-02-2020 дата публикации

A CROSSLINKABLE POLYOLEFIN COMPOSITION

Номер: US20200062939A1
Принадлежит:

The present invention relates to crosslinkable polyolefin compositions, to a process for their preparation, to crosslinked compositions such as foams, sealants or adhesives and shaped articles, and their use in food packaging, textile packaging and technical and protection films. The crosslinkable polyolefin composition comprises one or more polyolefin polymers A, a hydrolysable silane functional polyolefin polymer B prepared from monomers comprising olefin monomers a) and silane functional compound(s) b), wherein the silane functional polyolefin polymer B is grafted onto the one or more polyolefin polymers A. The crosslinkable polyolefin compositions is crosslinkable by moisture. 1: A crosslinkable polyolefin composition comprising:A. one or more polyolefin polymers A,B. a hydrolysable silane functional polyolefin polymer B prepared from monomers comprising olefin monomers a) and silane functional compound(s) b),and wherein the hydrolysable silane functional polyolefin polymer B is grafted onto the one or more polyolefin polymers A.2: The crosslinkable polyolefin composition according to wherein the silane functional compound(s) b) are selected from the group of silane halides or silane functional compound(s) b) represented by the formula:{'br': None, 'sup': 1', '2, 'sub': q', '3-q, 'RSiRY'}{'sup': 1', '2', '2, 'wherein Ris an ethylenically unsaturated hydrocarbyl, hydrocarbyloxy or (meth)acryloxy hydrocarbyl group, each Ris independently an aliphatic saturated hydrocarbyl group, Y which may be the same or different is a hydrolysable organic group and q is 0, 1 or 2; and R, if present, is a methyl, ethyl, propyl, decyl or phenyl group.'}3: The crosslinkable polyolefin composition according to claim 1 , wherein silane functional compound(s) b) are chosen from the group comprising gamma-(meth)acryl-oxypropyl trimethoxysilane claim 1 , gamma-(meth)-acryl-oxypropyl triethoxysilane claim 1 , and vinyl triacetoxysilane or combinations of two or more thereof.4: The ...

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27-02-2020 дата публикации

ARTICLE COMPRISING PLATED COMPONENT

Номер: US20200062945A1
Автор: ABE Fumiaki
Принадлежит:

An article at least comprising two components contacting with each other, in which at least part of a surface of at least one of the two components being plated, is provided, which is excellent in plating adhesion and impact resistance and thus is hard to be damaged on the plated surface and excellent in appearance even when one of the two components is brought into contact with the plated part of the other component, and is preferably suppressed in occurrence of unpleasant sounds such as squeaking noise. At least one of the two components of the article is formed of a thermoplastic resin composition (X) comprising a rubber-reinforced aromatic vinyl resin (A) in at least part of the portion that contacts the plated portion of the other component. 1. An article at least comprising two components dynamically contacting with each other , at least part of a surface of each of the two components being plated , in which at least one of the two component comprises a portion that contacts with the plated portion of the other component , said portion being at least partly formed of a thermoplastic resin composition (X) comprising a rubber-reinforced aromatic vinyl resin (A).2. The article according to claim 1 , in which at least one of the two components is formed of the thermoplastic resin composition (X) as a whole or at the whole portion that contacts with the other component.3. The article according to claim 1 , in which the thermoplastic resin composition (X) has a rubber content of 3 to 60% by mass.4. The article according to claim 1 , in which the thermoplastic resin composition (X) has a melting point in a range of 0 to 130° C. as measured in accordance with JIS K 7121-1987.5. The article according to claim 4 , in which the rubber-reinforced aromatic vinyl resin (A) has a rubber part made from an ethylene/alpha-olefin rubber.6. The article according to claim 5 , in which the ethylene/alpha-olefin rubber has a melting point in a range of 0 to 130° C. as measured in ...

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12-03-2015 дата публикации

Polylactic acid film or sheet, and pressure-sensitive adhesive tape or sheet

Номер: US20150072142A1
Принадлежит: Nitto Denko Corp

The present invention provides a polylactic acid film or sheet having tear strength so as not to break or tear during, for example, production or processing of the film or sheet or winding thereof into a roll, and causing neither melt nor deformation at high temperatures more than 100° C. In the polylactic acid film or sheet according to the present invention, the tear strength is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than ±3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than ±3% in the flow direction (MD).

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11-03-2021 дата публикации

DURABLE RETROREFLECTIVE ELEMENTS WITH A BLEND OF BEADS

Номер: US20210070962A1
Принадлежит:

The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use. 1. A pavement marking comprising a retroreflective element and a binder , a core consisting of a composite core, wherein the composite core comprises a polymer and a plurality of first beads having a first refractive index distributed throughout the polymer;', 'a plurality of second beads having a second refractive index that is different from the first refractive index,, 'wherein the retroreflective element compriseswherein the plurality of second beads are at a perimeter of the composite core,wherein the plurality of the first beads are entirely distributed throughout the composite core,wherein the plurality of first beads are glass or glass ceramic beads, andwherein the retroreflective element is essentially spherical.2. The pavement marking of claim 1 , wherein the polymer is a thermoplastic or thermoset acrylic claim 1 , polycarbonate claim 1 , polyurethane claim 1 , polyolefin claim 1 , polyester claim 1 , fluoropolymer claim 1 , polyvinyl chloride and its copolymers claim 1 , acid olefin copolymer such as ethylene acrylic acid or ethylene methacrylic acid claim 1 , ionic copolymer claim 1 , or mixtures thereof.3. The pavement marking of claim 1 , wherein the polymer has a hardness of greater ...

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