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. 13, 1991
Filed:
Feb. 26, 1991
Applicant:
Inventor:
Martin Brock, Cologne, DE;
Assignee:
Bayer Aktiengesellschaft, Bayerwerk, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521126 ; 521 97 ; 521130 ;
Abstract
Open-celled, elastic, flexible polyurethane foams are made without using a chlorofluorocarbon blowing agent. A polyisocyanate is reacted with a polyether in the presence of water and from about 0.1 to abour 10% by weight (based on polyether) of an organic blowing agent selected from dicarbonic acid alkyl esters, dicarbonic acid cycloalkyl esters, dicarbonic acid benzyl esters and combinations thereof. Optional starting materials include catalysts, chain lengthening agents, emulsifiers and other commonly used additives.
Quick Actions:
Brock, Martin. (1991). Open-celled flexible polyurethane foams and a process for their (U.S. Patent No. 5039712). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5039712
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile