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. 01, 1980
Filed:
Feb. 27, 1978
Applicant:
Inventors:
Seizaburo Watanabe, Suzuka, JP;
Yuji Seo, Suzuka, JP;
Eiji Hattori, Suzuka, JP;
Masao Okuda, Suzuka, JP;
Hiroshi Watanabe, Suzuka, JP;
Assignee:
Asahi-Dow Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
521 93 ; 264 53 ; 264D / ; 264D / ; 264D / ; 428310 ; 521144 ; 521146 ;
Abstract
An extrusion foamed article with a large cross-sectional area is made by extrusion foaming a mixture of an ionomer resin and a styrenic resin utilizing a volatile blowing agent. The process permits economic production of a novel thick, foamed article having well balanced properties.