Patent application number | Description | Published |
20080274357 | RESIN COMPOSITION FOR MOLDING MATERIAL AND MOLDED ARTICLE MADE THEREFROM - A resin composition for molding materials according to the present invention comprising an acrylic polymer and a plasticizer, wherein the acrylic polymer consists of primary particles which have a core-shell structure comprising a core polymer and a shell polymer, and wherein the core polymer and shell polymer comprise methyl methacrylate monomer units and the core polymer has a lower content of methyl methacrylate monomer units than the shell polymer. The resin composition has high moldability during molding and gives a molded article having high hardness and high tear strength and reduced in plasticizer bleeding. | 11-06-2008 |
20090036607 | POLYMER PARTICLE, RESIN COMPOSITION CONTAINING SAME, AND MOLDED BODY - A polymer particle is obtained by polymerizing a monomer in the presence of a phosphate salt represented by the following formula (1). The polymer particle contains 0.01 to 1.0 part by mass of the phosphate salt to 100 parts by mass of the polymer particle. A resin composition and a molded article using such a polymer particle are excellent in thermal stability and resistance to moist heat, and the color tone of the resin has little change before and after the blending of the polymer particle. | 02-05-2009 |
20090137740 | (METH)ACRYLIC POLYMER PARTICLE, PROCESS FOR PRODUCTION OF THE PARTICLE, PLASTISOL, AND ARTICLE - A method for producing a (meth)acrylic polymer particle comprises polymerizing a monomer (X) having a (meth)acryloyl group to produce a polymer particle, and polymerizing a monomer mixture (Y) in the presence of the polymer particle, in which the monomer (X) is 90 to 99.9% by mass and the monomer mixture (Y) is 0.01 to 10% by mass in terms of the ratio among monomer raw materials to be supplied for polymerization; and the monomer mixture (Y) comprises 1 to 80% by mol of a monomer (a) having a basic nitrogen atom or having a blocked isocyanate as a functional group, 5 to 80% by mol of a (meth)acrylate monomer (b) of at least one alcohol selected from the group consisting of an aliphatic alcohol having 2 or more carbon atoms, an aromatic alcohol, and a cyclic alkyl alcohol, and 0 to 94% by mol of a monomer (c) other than the monomer (a) and the monomer (b). | 05-28-2009 |
20090260752 | TWO-PACK TYPE PLASTISOL COMPOSITION AND METHOD OF USE THEREOF - A two-pack type plastisol composition comprising two liquid compositions (LA) and (LB), characterized in that the composition obtained by mixing the compositions (LA) and (LB) has a gelation time (as measured at 30.degree. C.) of 1 hour or shorter. It is a novel material which gels at ordinary temperature in 1 hour, preferably in several minutes, to come to have practically sufficient performances. The composition (LA) preferably comprises fine acrylic polymer particles (A) and a dispersion medium (B) in which the particles (A) are substantially insoluble at ordinary temperature (provided that the particles (A) may be soluble in the medium (B) at elevated temperatures). The composition (LB) preferably comprises an organic solvent (C) in which the particles (A) have sufficiently high solubility at ordinary temperature. | 10-22-2009 |
20100234530 | POWDERY PROCESSING AID FOR POLYOLEFIN RESINS, METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION AND SHAPED ARTICLE TECHNICAL FIELD - Disclosed are a powdery processing aid for polyolefin resins, containing an alkyl methacrylate polymer which has alkyl methacrylate units having an alkyl group with 2 to 6 carbon atoms as a main component and has a mass average molecular weight of 150,000 to 20,000,000, having good handling properties as a powder, having good dispersibility in polyolefin resins, and being able to improve shaping processability of polyolefin resins; and a polyolefin resin composition having improved shaping processability, which contains a powdery processing aid for polyolefin resins and a polyolefin resin. | 09-16-2010 |
20120065305 | ADDITIVE FOR A THERMOPLASTIC RESIN, A PROCESS FOR PRODUCING THE SAME, A THERMOPLASTIC RESIN COMPOSITION, AND A SHAPED ARTICLE - Disclosed is an additive for a thermoplastic resin, which provides a thermoplastic resin composition excellent in formability and also provides a shaped article excellent in surface appearance and flame retardance. | 03-15-2012 |
20120277379 | PROCESSING AID FOR POLYOLEFIN-BASED RESIN, POLYOLEFIN-BASED RESIN COMPOSITION AND MOLDED ARTICLE - To provide a processing aid for a polyolefin-based resin, capable of providing a polyolefin-based resin composition having excellent melt tension, fluidity and die build-up inhibiting effect. | 11-01-2012 |
20130085196 | DISPERSING AGENT FOR ADDITIVE FOR POLYOLEFIN-BASED RESIN, POLYOLEFIN-BASED RESIN COMPOSITION, AND MOLDED ARTICLE - Disclosed is a versatile dispersant for an additive for olefin resins. The dispersant (A) for an additive (B) for polyolefins contains an alkyl methacrylate polymer which comprises an alkyl methacrylate (a1) unit having an alkyl group with a carbon number of at least 2 as the main component, and which has a mass average molecular weight of 15,000-145,000. | 04-04-2013 |
20130289211 | CROSS-LINKED POLYMER PARTICLE FOR EPOXY RESIN, EPOXY RESIN COMPOSITION, AND EPOXY CURED MATERIAL - The invention discloses a cross-linked polymer particle for an epoxy resin, an epoxy resin composition containing the cross-linked polymer particle, the epoxy resin and a curing agent, and an epoxy cured material having qualities of colorless transparency and crack resistance as a result of curing the resin composition. The cross-linked polymer particle for the epoxy resin contains a (meth)acrylate monomer unit and a crosslinking monomer unit, wherein a volume average primary particle diameter is 0.5 to 10 μm, and a glass transition temperature of the monomer components excluding the crosslinking monomer is 30° C. or more by FOX formula calculation, and the refractivity at 23° C. is 1.490 to 1.510. | 10-31-2013 |
20160024355 | (METH)ACRYLATE POLYMER, A RESIN COMPOSITION AND A SHAPED ARTICLE - Disclosed is a (meth)acrylate polymer having a volume average primary particle size of 0.520 to 3.00 μm, a peak temperature of tan δ in the range of −100 to 0° C., determined with dynamic viscoelasticity measurement, of −40° C. or below, a peak height of tan δ in the range of −100 to 0° C., determined with dynamic viscoelasticity measurement, of 0.300 or more, and an acetone-insoluble component of 99% by mass of more. | 01-28-2016 |
Patent application number | Description | Published |
20100187965 | GRAFT COPOLYMER, THERMOPLASTIC RESIN COMPOSITION AND MOLDED PRODUCT - There is provided a resin which, in spite of having excellent impact resistance because of containing a rubber ingredient, can be molded into a haze-free and beautiful state across the entire surface of molded products even if the molded products are large-sized injection molded products, and is suitable for molded products on which a vapor deposition layer is formed by the direct vapor deposition method, and is suitable for molded products which are joined by the hot plate welding method, particularly molded products such as housing members of automotive lamps, which require weatherability. Also provided is a graft copolymer (B) obtained by polymerizing a (meth)acrylate monomer (b1) a homopolymer of which has a glass transition temperature exceeding 0° C. in the presence of a composite rubber (A) containing a polyorganosiloxane (A1) and a poly(meth)acrylate (A2), and then polymerizing an aromatic vinyl monomer (b2) and a cyanided vinyl monomer (b3). | 07-29-2010 |
20110160401 | POWDER OF VINYL POLYMER CONTAINING SILICONE POLYMER AND METHOD FOR PRODUCING THE SAME, RESIN COMPOSITION, AND SHAPED ARTICLE - Disclosed is a method for producing powder of a vinyl polymer containing a silicone polymer, which comprises the step of spray-drying a latex of the vinyl polymer containing a silicone polymer obtained by polymerization of a vinyl monomer in the presence of a latex of the silicone polymer, wherein 3.0 mmol or less of a sulfate is contained in 100 g of the powder of a vinyl polymer containing a silicone polymer. According to the present invention, a powder which can provide a shaped article excellent in impact resistance and hydrolysis resistance in the case when the powder is blended in a resin such as polycarbonate resin can be obtained. | 06-30-2011 |
20110294954 | VINYL POLYMER POWDER, CURABLE RESIN COMPOSITION AND CURED SUBSTANCE - Disclosed is a vinyl polymer powder which is superior to dispersibility to curable resin compositions, which immediately gives a gel state for curable resin compositions by short-time heating with predetermined temperature, which is with high ion concentration, and which is useful as a pre-gel agent suitable for fields of electronic materials, to provide a curable resin composition comprising the vinyl polymer powder, and to provide a cured substance of the curable resin composition. The vinyl polymer powder of the present invention has an acetone-soluble component of 30% by mass or more, mass average molecular weight of the acetone-soluble component of 100,000 or more, a content of an alkali metal ion of 10 ppm or less, and a volume average primary particle size (Dv) of 200 nm or more. | 12-01-2011 |
20120123023 | (METH)ACRYLATE POLYMER, A RESIN COMPOSITION AND A SHAPED ARTICLE - Disclosed is a (meth)acrylate polymer having a volume average primary particle size of 0.520 to 3.00 μm, a peak temperature of tan δ in the range of −100 to 0° C., determined with dynamic viscoelasticity measurement, of −40° C. or below, a peak height of tan δ in the range of −100 to 0° C., determined with dynamic viscoelasticity measurement, of 0.300 or more, and an acetone-insoluble component of 99% by mass of more. | 05-17-2012 |
20130281586 | GRAFT COPOLYMER, PRODUCTION METHOD THEREFOR, RESIN COMPOSITION, AND MOLDED ARTICLE - Disclosed are a method of producing a graft copolymer, comprising polymerizing a vinyl monomer (B) containing a polyfunctional vinyl monomer (b1) in the presence of a polyorganosiloxane rubber (A) comprising more than 20% by mass of a toluene-insoluble matter, wherein a mass percentage of the polyfunctional vinyl monomer (b1) is 11 to 19% by mass based on 100% by mass of a total amount of the polyorganosiloxane rubber (A) and the vinyl monomer (B); a graft copolymer obtained by the method; a resin composition being prepared by blending the graft copolymer with a resin and having high impact resistance and heat resistance and sufficient flame retardancy; and a molded article obtained by molding the resin composition. | 10-24-2013 |
20130338311 | POLYORGANOSILOXANE LATEX, GRAFT COPOLYMER USING THE SAME, THERMOPLASTIC RESIN COMPOSITION, AND MOLDED BODY - A variety of molded bodies having high weatherability, impact resistance, designability, and the like, and a polyorganosiloxane latex and a graft copolymer used as the raw material therefor are provided. A polyorganosiloxane latex having a mass average particle diameter (Dw) of a polyorganosiloxane particle of 100 to 200 nm, and a ratio of the mass average particle diameter (Dw) to a number average particle diameter (Dn) (Dw/Dn) of 1.0 to 1.7. A polyorganosiloxane-containing vinyl-based copolymer (g) obtained by polymerizing one or more vinyl-based monomers in the presence of the latex. A graft copolymer (G) obtained by graft polymerizing one or more vinyl-based monomers in the presence of the copolymer. A thermoplastic resin composition including the graft copolymer (Ga) and a thermoplastic resin (Ha) except for the graft copolymer (Ga). A molded body obtained by molding the resin composition. A lamp housing for vehicle lighting including the molded body obtained by molding the composition. | 12-19-2013 |
20140107295 | EPOXY RESIN COMPOSITION, CURED OBJECT AND OPTICAL SEMICONDUCTOR SEALING MATERIAL - An epoxy resin composition, a cured object thereof, and an optical semiconductor sealing material using the cured object are described. The epoxy resin composition includes an alicyclic epoxy resin (A) and a vinyl polymer particle (B). An acetone soluble part of the vinyl polymer particle (B) is 30 mass % or more. The mass average molecular weight of the acetone soluble part is 100,000 or more. The volume average primary particle diameter (Dv) is 200 nm or more. The epoxy resin composition is rapidly turned into a gel state by heating for a short time, and the transparency of the obtained cured object is good. | 04-17-2014 |