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:
Jan. 20, 1976
Filed:
Jul. 30, 1974
Applicant:
Inventors:
Osamu Fujii, Kounosu, JA;
Toshio Kishimoto, Kawagoe, JA;
Hisao Kosuge, Kawagoe, JA;
Ryoji Nagamine, Kawagoe, JA;
Sumio Shimada, Kawagoe, JA;
Assignee:
Toyo Rubber Chemical Industrial Corporation, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08J / ; C08J / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 260D / ; 260D / ;
Abstract
An antistatic polyurethane foam contains quaternary ammonium salt as an antistatic agent. The quaternary ammonium salt is added either to a raw material for polyurethane foam or to a prepared polyurethane foam by causing the foam to be impregnated with a solution containing the quaternary ammonium salt and drying it.
Fujii, Osamu. (1976). Method for preparing a polyurethane foam comprising quaternary ammonium (U.S. Patent No. 3933697). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3933697
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile