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:
Jan. 03, 1989
Filed:
Jul. 20, 1987
Applicant:
Inventors:
Frank Wingler, Leverkusen, DE;
Klaus Summermann, Cologne, DE;
Gerd Wassmuth, Leverkusen, DE;
Alfred Pischtschan, Kuerten, DE;
Joachim Doring, Langenfeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525 53 ; 525 54 ; 525 70 ; 525242 ; 526 65 ; 526 68 ; 526 88 ; 526 89 ; 526208 ; 526342 ; 522-3 ; 522188 ;
Abstract
Process for the preparation of thermoplastic copolymers of .alpha.-methylstyrene and acrylonitrile by continuous bulk copolymerization of