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:
Oct. 23, 1979
Filed:
Mar. 15, 1973
Applicant:
Inventors:
Gerhard Balle, Cologne, DE;
Gunter Kolb, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
525323 ; 526295 ; 526338 ; 526340 ; 2604 / ; 2604654 ; 2605 / ; 2605 / ; 525329 ; 525330 ; 525334 ;
Abstract
Linear telechelic diene polymers with molecular weights of about 300 to about 20,000 which contain hydrazide end groups and to a process for their preparation as well as to their use for synthesizing high molecular weight polymers.