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. 04, 1995
Filed:
Aug. 18, 1993
Applicant:
Inventors:
Yoshiyuki Kato, Chiba, JP;
Hideaki Shibata, Chiba, JP;
William Simmons, Birmingham, GB;
Nigel K Graham, Staffordshire, GB;
Assignees:
Hitachi Chemical Co., Ltd., Tokyo, JP;
Foseco International Ltd., Birmingham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; B22C / ;
U.S. Cl.
CPC ...
521 98 ; 164 45 ; 164 47 ; 264 51 ; 264109 ; 264126 ; 4283044 ; 4283055 ; 521134 ; 521139 ; 521142 ; 521146 ; 525902 ;
Abstract
Disclosed are a foamable resin composition which comprises a copolymer with a weight-average molecular weight of 150,000-350,000 produced by copolymerization of a monomer mixture of 55-85% by weight of styrene and 45-15% by weight of a methacrylic acid ester represented by general formula (I)