The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7393889 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 01, 2008

Filed:

Dec. 27, 2001
Applicant:

Jae Goo Doh, Gyeonggi-Do, KR;

Inventor:

Jae Goo Doh, Gyeonggi-Do, KR;

Assignee:

Cheil Industries Inc., Kyungsangbuk-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 279/02 (2006.01); C08J 3/00 (2006.01); C08K 3/34 (2006.01); C08K 9/04 (2006.01); C08L 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The rubber modified polystyrene resin composition with high gloss and impact resistance according to the present invention is prepared by (i) polymerizing a solution consisting of about 80 to 95% by weight of styrene (A) and about 5 to 20% by weight of polybutadiene rubber (B) with a clay material at a temperature of about 90 to 150° C. in a first reactor so as to disperse at least two different sizes of polybutadiene rubber particles in the matrix of polystyrene, and (ii) inputting the resulting solution of the step (i) to a second reactor being kept at about 130 to 180° C. to terminate the polymerization.


Find Patent Forward Citations

Doh, Jae. (2008). Method of preparing rubber modified polystyrene resin composition with high gloss and impact resistance (U.S. Patent No. 7393889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7393889

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