Title:
BUTADIENE-STYRENE LINEAR COPOLYMER, METHOD FOR PREPARING THE SAME AND COMPOSITION, AND AROMATIC VINYL RESIN AND METHOD FOR PREPARING THE SAME
Document Type and Number:
Japanese Patent JP2019052283
Kind Code:
A
Abstract:
To provide an aromatic vinyl resin excellent in glossiness and impact resistance, and a method producing the same.SOLUTION: A method for producing an aromatic vinyl resin includes: (i) directly mixing a polymer solution containing a butadiene-styrene linear copolymer of which a content of 1,2-structural unit is 8-14 wt.% and a distribution range of a molecular weight is wide and a polymer solution containing a low cis-polybutadiene rubber with an aromatic vinyl matrix monomer; and then (ii) performing bulk polymerization to obtain an aromatic vinyl resin, and has unimodal distribution such that the number average molecular weight is 70,000-160,000 and a molecular weight distribution index is 1.55-2, where based on the total amount of the butadiene-styrene linear copolymer, a content of a styrene structural unit is 10-45 wt.% and a content of a butadiene structural unit is 55-90 wt.%, a Mooney viscosity is 50-150, and a gel content is less than 20 wt.ppm.SELECTED DRAWING: None
Inventors:
LI JIANCHENG
XU LIN
WANG XUE
ZHAO JIANG WEI
XU LIN
WANG XUE
ZHAO JIANG WEI
Application Number:
JP2017207946A
Publication Date:
April 04, 2019
Filing Date:
October 27, 2017
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP
BEIJING RES INST OF CHEMICAL INDUSTRY CHINA PETROLEUM & CHEMICAL CORP
BEIJING RES INST OF CHEMICAL INDUSTRY CHINA PETROLEUM & CHEMICAL CORP
International Classes:
C08F236/06; C08F4/48; C08F4/52; C08F279/04
Domestic Patent References:
| JP2008069347A | 2008-03-27 | |||
| JPS5753507A | 1982-03-30 | |||
| JP2019052284A | 2019-04-04 | |||
| JP2000516286A | 2000-12-05 | |||
| JPH0234612A | 1990-02-05 | |||
| JP2002502899A | 2002-01-29 | |||
| JPH01259016A | 1989-10-16 | |||
| JP2006188682A | 2006-07-20 |
Foreign References:
| CN106589247A | 2017-04-26 | |||
| US20080161455A1 | 2008-07-03 |
Attorney, Agent or Firm:
Harakenzo world patent & trademark