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:
Apr. 28, 1992
Filed:
Dec. 07, 1990
Applicant:
Inventors:
Ralf Dujardin, Krefeld, DE;
Gerd Renner, Cologne, DE;
Karl-Erwin Piejko, Bergisch Gladbach, DE;
Bruno Boemer, Bergisch Gladbach, DE;
Alfred Jung, Krefeld, DE;
Werner Nouvertne, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen Bayerwerk, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ; C08F / ;
U.S. Cl.
CPC ...
525534 ; 525147 ; 525148 ; 525539 ; 526185 ; 526194 ; 528 14 ; 528 16 ; 528 19 ; 528 21 ; 528 22 ; 528 26 ; 528204 ; 528205 ;
Abstract
The invention relates to polyacrylates corresponding to formula (I) ##STR1## to their production in a quasi-ionic polymerization and to their use as monofunctional chain terminators, optionally in combination with typical other chain terminators, for the production of aromatic polycarbonates. The invention also relates to the polycarbonates or polycarbonate mixtures obtained using the compounds corresponding to formula (I) and to their use as additives for other thermoplastic polycarbonates.