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:
Oct. 01, 2002
Filed:
Dec. 09, 1999
Koji Yoshimura, Hyogo, JP;
Shusaku Maruo, Hyogo, JP;
Sanwa Kako Company Limited, Kyoto, JP;
Abstract
A vibration damping, resinous, open cell cellular body is disclosed. The body has a base material thereof which consists essentially of a mixture of a tri-block copolymer as a combination of polystyrene and vinyl-polyisoprene and an ethylene series resin. In a method of manufacture, the mixture is blended and kneaded with a foaming agent and a crosslinking agent to form a foamable and crosslinkable composition. The composition is heated in a non-airtight mold to foam, thereby forming a cellular body with cells therein. The cellular body is then mechanically deformed to cause cells therein to be interconnected, thereby producing the open cell cellular body.