METHOD FOR PREPARING A GRAFT COPOLYMER, AND THERMOPLASTIC RESIN MOLDED PRODUCT

Title:

METHOD FOR PREPARING A GRAFT COPOLYMER, AND THERMOPLASTIC RESIN MOLDED PRODUCT

Document Type and Number:

WIPO Patent Application WO/2019/156394

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing a graft copolymer comprising the steps of: preparing a conjugated diene-based polymer with a small particle size by polymerizing a conjugated diene-based monomer; preparing a conjugated diene-based polymer with a large particle size by enlarging the conjugated diene-based polymer with a small particle size; and preparing a graft copolymer by polymerizing the conjugated diene-based polymer with a small particle size, the conjugated diene-based polymer with a large particle size, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer, wherein, in the step for preparing a graft copolymer, the weight ratio between the conjugated diene-based polymer with a small particle size and the conjugated diene-based polymer with a large particle size is 10:90 to 40:60.

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Inventors:

CHAI JOO BYUNG (KR)
JUNG YU SUNG (KR)
KIM JONG BEOM (KR)
KIM CHANG SULL (KR)
PARK EUN SEON (KR)
JEON TAE YOUNG (KR)
KIM YOUNG MIN (KR)

Application Number:

PCT/KR2019/000966

Publication Date:

August 15, 2019

Filing Date:

January 23, 2019

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C08F279/04; C08F2/22; C08F8/06

Foreign References:

KR950018237A	1995-07-22
KR950005861A	1995-03-20
KR20160048331A	2016-05-04
KR20000026020A	2000-05-06
KR20160129746A	2016-11-09

Other References: