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:
Nov. 09, 1976
Filed:
Nov. 29, 1974
Applicant:
Inventors:
Johannes Blahak, Cologne, DT;
Erwin Muller, Leverkusen, DT;
Uwe Dobereiner, Leverkusen, DT;
Wolfgang Ebner, Opladen, DT;
Helmut Kleimann, Leverkusen, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 2604 / ;
Abstract
Polyurethane resins are provided, which polyurethanes are chain extended with ester diamines of the formula ##SPC1## Wherein R is C.sub.1 to C.sub.20 alkyl radical and R' is a C.sub.1 to C.sub.10 alkyl radical.
Blahak, Johannes. (1976). Polyurethanes wherein the chain-lengthening agents are benzoic ester (U.S. Patent No. 3991023). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3991023
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile