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.:
Date of Patent:
Apr. 19, 2005
Filed:
Oct. 24, 2001
Applicants:
Koji Kawano, Sakai, JP;
Kenichiro Matsuba, Chiba, JP;
Inventors:
Koji Kawano, Sakai, JP;
Kenichiro Matsuba, Chiba, JP;
Assignee:
Toyo Engineering Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L083/00 ;
U.S. Cl.
CPC ...
Abstract
A rubber modified polystyrene composition comprising polybutadiene particles dispersed in polystyrene, wherein the polybutadiene particles have an average volume particle diameter of 6 to 13 microns, and the composition has a gel content of 25 to 35% by weight and a degree of swelling of 13 to 22, is prepared by polymerizing the polybutadiene particles in the presence of styrene. The rubber modified polystyrene composition of the present invention may be used for components contacting flon compounds, such as components of refrigerators.