Abstract: A polycarbonate resin composition and a molded article thereof are described, which have good flame retardance and high thermal stability when molded under high temperature. The resin composition contains a resin modifier (B) containing a tetrafluoroethylene-based polymer (p1) and a vinyl polymer (p2) other than the polymer (p1). The resin modifier (B) is obtained by using an alkaline (earth) metal salt other than a sulfate salt to segregate from a latex containing the polymer (p1) and the polymer (p2). The polymer (p2) is formed by performing polymerization on a vinyl monomer (X) containing at least 20 mass % of an aromatic vinyl monomer (x1) in the presence of at least one emulsifier selected from a phosphoric acid-based emulsifier, a carboxylic acid-based emulsifier, and a nonionic emulsifier.

Abstract: A polymer powder (P) selected from a group consisting of (i) a polymer powder (P1) and (ii) a polymer powder (P2) is provided. The (i) polymer powder (P1) includes a (meth)acrylate-based polymer (A1) having a glass transition temperature of 0° C. or less, and the polymer powder has an acetone-soluble component of 5 mass % or more. The acetone-soluble component has a mass average molecular weight of 100,000 or more. The (ii) polymer powder (P2) has an acetone-soluble component of 2 mass % to 35 mass %, the acetone-soluble component has a mass average molecular weight of 100,000 or more, and has a volume average primary particle size (Dv) of 200 nm or more.

Abstract: 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).

Abstract: A probe card apparatus can comprise a tester interface to a test controller, probes for contacting terminals of electronic devices to be tested, and electrical connections there between. The probe card apparatus can comprise a primary sub-assembly, which can include the tester interface. The probe card apparatus can also comprise an interchangeable probe head, which can include the probes. The interchangeable probe head can be attached to and detached from the primary sub-assembly while the primary sub-assembly is secured to or in a housing of a test system. Different probe heads each having probes disposed in different patterns to test different types of electronic devices can thus be interchanged while the primary sub-assembly is secured to or in a housing of the test system.

Abstract: A vinyl polymer powder, a curable resin composition containing the vinyl polymer powder and a curable resin, and a cured product obtained by curing the curable resin composition are provided. The vinyl polymer powder contains a vinyl polymer of which the glass transition temperature is 120° C. or higher and the mass average molecular weight is 100,000 or more, has excellent dispersibility in the curable resin composition, and rapidly turns the curable resin composition into a gel state by heating at a predetermined temperature in a short time. Further, the vinyl polymer powder decreases the linear expansion coefficient of the obtained cured product, and improves the crack resistance.

Abstract: The present application relates to a pavement marker including a core from which extends protrusions and a cavity between adjacent protrusions. The microsphere lenses are fixed within the cavity by one of a softening material disposed in the core and an adhesive agent disposed in the cavity.

Abstract: 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. The additive for a thermoplastic resin comprises tetrafluoroethylene polymer (A) and alkyl methacrylate polymer (B) containing 50% by mass or more of units of alkyl methacrylate having an alkyl group with carbon numbers of 2 to 6.

Abstract: 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.

Abstract: 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.

Abstract: 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 ?m, 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.

Abstract: 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).

Abstract: 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.

Abstract: 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.

Abstract: A process for the production of a self-supporting glass film is described. The method includes the steps of preparing a mixture containing a colloidal silica sol, at least one alkanolamine organic additive and an organic binder; coating the mixture onto a base material; drying the coated mixture to form a precursor film on the base material; releasing the precursor film from the base material; and firing the released precursor film to form a self-supporting glass film. Self-supporting glass films produced by the disclosed process are also described.

Abstract: 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.

Abstract: 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. A processing aid for a polyolefin-based resin, comprising (A) an alkyl methacrylate-based polymer containing, as a main component, a unit of (a1) an alkyl methacrylate in which the alkyl group has 2 to 10 carbon atoms, and having a mass average molecular weight of 15,000 to 145,000.

Abstract: 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.

Abstract: Disclosed is a (meth)acrylate polymer having a volume average primary particle size of 0.520 to 3.00 ?m, a peak temperature of tan ? in the range of ?100 to 0° C., determined with dynamic viscoelasticity measurement, of ?40° C. or below, a peak height of tan ? 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. This polymer has excellent dispersibility of primary particles in a resin, excellent storage stability of a resin composition obtained, and excellent insulating properties and reduction in elastic modulus of a molded article obtained.

Abstract: A glass ceramic self-supporting film that includes silica (SiO2) matrix glass and fine crystalline zirconia (ZrO2) particles dispersed in the matrix glass. A process for production of a glass ceramic self-supporting film wherein the process includes the steps of combining a colloidal silica sol having a pH of 4 or less, a zirconium-containing compound and an organic binder to produce a mixture, coating the mixture onto a base material, drying the mixture on the coated base material to form a precursor film on the base material, releasing the precursor film from the base material, and firing the released precursor film.

Abstract: 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. The additive for a thermoplastic resin comprises tetrafluoroethylene polymer (A) and alkyl methacrylate polymer (B) containing 50% by mass or more of units of alkyl methacrylate having an alkyl group with carbon numbers of 2 to 6.