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:
Aug. 12, 1997
Filed:
Mar. 03, 1994
Applicant:
Inventors:
Eiji Sawa, Kanagawa-ken, JP;
Hiroya Fukuda, Kanagawa-ken, JP;
Shohei Morikawa, Kanagawa-ken, JP;
Hitoshi Yaguchi, Kanagawa-ken, JP;
Yuichiro Mori, Kanagawa-ken, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; C08J / ;
U.S. Cl.
CPC ...
428 365 ; 4283044 ; 428323 ; 4284231 ; 4284258 ; 4284259 ; 492 53 ; 492 59 ; 521 99 ; 521133 ; 521159 ; 252500 ; 252511 ;
Abstract
The electroconductive polyurethane foam according to the present invention is obtained by adding and dispersing, in the composition constituting polyurethane foam, a substance with electron conduction mechanism, and a substance with ionic conduction mechanism and mechanically agitating the resultant mixture in the presence of inert gas. The substance with ionic conduction mechanism is an antistatic agent selected from cationic surfactant, anionic surfactant, ampholytic surfactant, and non-ionic surfactant.