PREPARATION METHOD OF THERMOPLASTIC RESIN COMPOSITION WITH GOOD TRANSPARENCY AND IMPACT RESISTANCE

PURPOSE: A method for preparing a thermoplastic resin composition is provided, to improve the transparency and the impact resistance by adding an unsaturated nitrile-based monomer in two times. CONSTITUTION: The method comprises the steps of polymerizing 20-40 parts by weight of a diene-based rubber...

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Bibliographic Details
Main Authors KIM, SEONG YEOL, KIM, TAE UK, PARK, EUNG SEO
Format Patent
LanguageEnglish
Korean
Published 19.06.2002
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:PURPOSE: A method for preparing a thermoplastic resin composition is provided, to improve the transparency and the impact resistance by adding an unsaturated nitrile-based monomer in two times. CONSTITUTION: The method comprises the steps of polymerizing 20-40 parts by weight of a diene-based rubber polymer, 20-40 parts by weight of a methacryl alkyl ester-based monomer, 5-15 parts by weight of an aromatic vinyl-based monomer and 0-25 parts by weight of an unsaturated nitrile-based monomer to prepare a grafted copolymer (A); adding 40-80 parts by weight of a methacryl alkyl ester-based monomer, 10-30 parts by weight of an aromatic vinyl-based monomer and an initiator into a reactor at a time to prepolymerize the mixture, adding 0-50 parts by weight of an unsaturated nitrile-based monomer into the reactor to polymerize a methacryl alkyl ester-based copolymer (B); and mixing the grafted copolymer (A) and the methacryl alkyl ester-based copolymer (B).
Bibliography:Application Number: KR20000074690