Disclosed are a rubber latex and a method of preparing the same. The rubber latex comprises a diene based rubber polymer core and a multilayer shell structure wherein an aromatic or non-aromatic polymer having an unsaturated double bond and a diene based polymer are alternatively laminated on the core. When a rubber reinforced graft copolymer is prepared through emulsion polymerization of the rubber latex, a product having excellent impact resistance and colorability may be provided.

A thermoplastic resin composition containing 25 to 50 parts by mass of a rubber-containing graft copolymer (A) obtained by copolymerizing a monomer mixture containing an aromatic vinyl compound and a vinyl cyanide compound in the presence of a diene-based rubber-like polymer, and 50 to 75 parts by mass of a hard copolymer mixture (B) containing a hard copolymer (B-I) and a hard copolymer (B-II).

An automotive interior part includes a thermoplastic resin composition containing a prescribed acetone insoluble fraction (A) and a prescribed acetone soluble fraction (B), in which a content of the acetone insoluble fraction (A) is 5 to 18% by mass based on 100% by mass of a sum of the acetone insoluble fraction (A) and the acetone soluble fraction (B).

An automotive interior part includes a thermoplastic resin composition containing a prescribed acetone insoluble fraction (A) and a prescribed acetone soluble fraction (B), in which a content of the acetone insoluble fraction (A) is 5 to 18% by mass based on 100% by mass of a sum of the acetone insoluble fraction (A) and the acetone soluble fraction (B).

A modified polymer is obtained by grafting of at least one compound of formula (I) onto at least one unsaturation of the initial polymer chain

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in which Q represents a dipole comprising at least one nitrogen atom; A represents a divalent heteroaromatic ring optionally substituted with one or more identical or different linear or branched aliphatic hydrocarbon-based chains, optionally substituted or interrupted with one or more heteroatoms; E represents a divalent hydrocarbon-based group which may optionally contain one or more heteroatoms; R.sub.1 represents a hydrogen atom or a C.sub.1-C.sub.20 alkyl group; and Y and Z, which may be identical or different, each represent a hydrogen atom or a hydrocarbon-based chain, Y and Z together also possibly forming a ring, notably an aromatic ring, with the carbon atoms of the imidazole ring to which they are attached.

A modified polymer is obtained by grafting of at least one compound of formula (I) onto at least one unsaturation of the initial polymer chain

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in which Q represents a dipole comprising at least one nitrogen atom; A represents a divalent heteroaromatic ring optionally substituted with one or more identical or different linear or branched aliphatic hydrocarbon-based chains, optionally substituted or interrupted with one or more heteroatoms; E represents a divalent hydrocarbon-based group which may optionally contain one or more heteroatoms; R.sub.1 represents a hydrogen atom or a C.sub.1-C.sub.20 alkyl group; and Y and Z, which may be identical or different, each represent a hydrogen atom or a hydrocarbon-based chain, Y and Z together also possibly forming a ring, notably an aromatic ring, with the carbon atoms of the imidazole ring to which they are attached.

The present invention relates to a graft copolymer and a method for preparing the same, wherein the graft copolymer has merits of a superior storage convenience compared to existing dry powder and a high whiteness index, and thus may be widely applied to various fields.

The present invention relates to a graft copolymer and a method for preparing the same, wherein the graft copolymer has merits of a superior storage convenience compared to existing dry powder and a high whiteness index, and thus may be widely applied to various fields.

The present invention relates to a graft copolymer and a method for preparing the same, wherein the graft copolymer has merits of a superior storage convenience compared to existing dry powder and a high whiteness index, and thus may be widely applied to various fields.

The present invention relates to a method for preparing a conjugated diene-based polymer, characterized in using a dimer acid saponified material as an emulsifier in a polymerization initiation step and injecting a monomer and the emulsifier in three or more installments after initiating polymerization, and the conjugated diene-based polymer prepared by the preparation method of the present invention has excellent physical properties such as impact strength and reflection haze.