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, 1981
Filed:
Jun. 26, 1979
Applicant:
Inventors:
Toshio Yukuta, Kodaira, JP;
Takashi Ohashi, Iruma, JP;
Minoru Kojima, Tokyo, JP;
Masumi Saito, Tanashi, JP;
Assignee:
Bridgestone Tire Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; B29D / ;
U.S. Cl.
CPC ...
521128 ; 521136 ; 521158 ; 521163 ; 521164 ; 521167 ; 521903 ; 264 53 ; 264 54 ;
Abstract
The flexible polyurethane foams having high flame resistance and smoke resistance can be produced by reacting a polyhydroxyl compound and a polyisocyanate with a urea derivative selected from the group consisting of