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:
Mar. 27, 1979
Filed:
Aug. 22, 1977
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
521159 ; 260 / ; 260 / ; 2605 / ; 2605 / ; 2605 / ; 260571 ; 260578 ; 521-3 ; 521164 ; 528 46 ; 528 53 ; 528 64 ; 560 13 ; 560 18 ;
Abstract
This invention relates to new polyurethane resins produced by a process in which aromatic diamines containing thio-groups are used as chain-lengthening agents.