摘要:
A graft copolymer composition capable of producing a molded product retaining a satisfactory appearance over a long period of time and having abrasion resistance, scratching resistance and bending resistance. The graft copolymer composition contains a graft copolymer as the main component and a lubricant including a fatty acid amide or an alkylene oxide derivative. The graft copolymer includes an olefin polymer segment (a) and a vinyl polymer segment (b). Particles of one segment are dispersed in the other one segment. The diameter of the particles is 0.001 to 10 μm. The vinyl polymer segment (b) is formed from a polar vinyl monomer.
摘要:
A novel peroxydicarbonate containing a non-conjugate type unsaturated bond, represented by the general formula: ##STR1## (wherein R.sub.1 stands for a hydrogen atom or a methyl group and n for an integer of the value of 1 or 2) is particularly useful as a polymerization initiator.
摘要:
A graft copolymer having a structure in which a vinyl copolymer segment formed from a vinyl monomer having an acid is suspended in a molecular chain of a polyolefin resin segment via a β-substituted propylene group is obtained, by reaction of polyolefin resin having β-substituted propenyl group as a pendant and a vinyl monomer having an acid, and further a graft copolymer composition containing the same and a molded product thereof are obtained.The obtained graft copolymer, the composition containing the same and the molded product thereof are excellent in adhesive property to a polar material and scratch resistance.
摘要:
An olefinic thermoplastic elastomer with improved properties can be obtained by melting and kneading a graft copolymer, acrylic rubber, a crosslinking agent, and a co-crosslinking agent. The graft copolymer is composed of an olefin polymer segment formed from a nonpolar α-olefin monomer and a vinyl polymer segment formed from a vinyl monomer, with particles of one segment being dispersed in the other segment. The particle diameter is 0.01 to 1 μm. The acrylic rubber can be obtained by polymerizing a monomer mixture containing methoxyethyl acrylate.
摘要:
Disclosed is a thermoplastic elastomer composition obtained by dynamically crosslinking a composition composed of a component (A), a component (B) and a component (C) with 0.05 to 5 parts by mass of a crosslinking agent per 100 parts by mass of the component (A). The component (A) is 50 to 85 parts by mass of an acrylic rubber prepared by copolymerizing a monomer mixture mainly containing an alkyl acrylate and also containing 0.5 to 15% by mass of an epoxy group-containing monomer. The component (B) is 15 to 50 parts by mass of a thermoplastic polyester resin. The component (C) is 1 to 35 parts by mass of a graft copolymer or a precursor thereof per 100 parts by mass of the total of the components (A) and (B), and the graft copolymer is composed of an olefin polymer segment and a vinyl copolymer segment.
摘要:
A graft copolymer having a structure in which a vinyl copolymer segment formed from a vinyl monomer having an acid is suspended in a molecular chain of a polyolefin resin segment via a β-substituted propylene group is obtained, by reaction of polyolefin resin having β-substituted propenyl group as a pendant and a vinyl monomer having an acid, and further a graft copolymer composition containing the same and a molded product thereof are obtained. The obtained graft copolymer, the composition containing the same and the molded product thereof are excellent in adhesive property to a polar material and scratch resistance.
摘要:
A thermoplastic resin composition having excellent characteristics such as impact resistance and coatability is described. The thermoplastic resin composition contains a propylene based polymer and a graft copolymer having an olefin homo/co-polymer portion forming its main chain and a vinyl copolymer portion forming its branched portion. In the graft copolymer, the proportion of the olefin homo/co-polymer portion is 5 to 95% by weight, and the vinyl copolymer portion occupies the remaining weight. The vinyl copolymer portion of the graft copolymer has a hydroxyl group as a functional group. One of the olefin homo/co-polymer portion and the vinyl copolymer portion forms a dispersed phase in the other with a particle size of 0.001 to 10 .mu.m. Consequently, the graft copolymer assumes a multi-phase structure. The thermoplastic resin composition optionally further contains a thermoplastic elastomer.
摘要:
A grafted aromatic polycarbonate resin is produced by melt-kneading a graft precursor comprising a mixture of 35 to 95% by weight of aromatic polycarbonate resin particles and 65 to 5% by weight of vinylic copolymer containing active oxygen, the vinylic copolymer being present in the aromatic polycarbonate resin particles, thereby subjecting to grafting reaction of the aromatic polycarbonate resin and the vinylic copolymer, where the grafting reaction can be sufficiently carried out and thus the grafted polycarbonate resin is useful for molding materials for optical disks, optical lenses, etc. a polymer blend-compatible agent, adhesives, paints, etc.
摘要:
An olefinic thermoplastic elastomer with improved properties can be obtained by melting and kneading a graft copolymer, acrylic rubber, a crosslinking agent, and a co-crosslinking agent. The graft copolymer is composed of an olefin polymer segment formed from a nonpolar α-olefin monomer and a vinyl polymer segment formed from a vinyl monomer, with particles of one segment being dispersed in the other segment. The particle diameter is 0.01 to 1 μm. The acrylic rubber can be obtained by polymerizing a monomer mixture containing methoxyethyl acrylate.
摘要:
To provide a gap-filling member for vehicles using an olefinic thermoplastic elastomer, which has a wide range for regulating a gloss value representing gloss, can provide a high initial gloss value and is excellent also in mechanical properties such as scratch resistance, chemical resistance and adhesion, and recycling properties.A gap-filling member for vehicles to be mounted on a peripheral portion of a plate-like body for vehicle windows, to fill a gap between the plate-like body for vehicle windows and an opening of a vehicle body, said gap-filling member being made of an olefinic thermoplastic elastomer which comprises: an olefinic graft copolymer comprising an olefinic polymer or olefinic copolymer segment formed from an α-olefin monomer, and a vinyl copolymer segment, wherein particles of one segment are dispersed in the other segment, and the particles have an average diameter of from 0.01 to 1 μm; and an acrylic rubber obtained by copolymerizing a monomer mixture comprising, as the main components, methoxyethyl acrylate, an alkyl acrylate, acrylonitrile and allyl methacrylate.