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:
Sep. 28, 1982
Filed:
Jul. 29, 1981
Applicant:
Inventors:
Hatuo Sugitani, Ibaraki, JP;
Takeo Kudo, Hitachi, JP;
Yoshiyuki Mukoyama, Hitachi, JP;
Hiromasa Kawai, Ichihara, JP;
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 56 ; 521 59 ; 521 60 ; 521139 ; 521146 ; 521147 ; 521154 ;
Abstract
An expandable styrene series resin composition comprising a styrene series resin containing in its molecular structure a group of the formula: