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. 30, 1993
Filed:
May. 21, 1990
Applicant:
Inventors:
Knud Reuter, Krefeld, DE;
Wolfgang Jilge, Bergisch-Gladbach, DE;
Bernd Pittel, Heinsberg, DE;
Gunther Weymans, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen-Bayerwerk, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08C / ; C08C / ; C08C / ;
U.S. Cl.
CPC ...
528171 ; 528125 ; 528126 ; 528128 ; 528174 ; 528175 ; 528219 ; 528220 ; 528226 ;
Abstract
Aromatic polyether sulfones based on 5 to 90 mol-%, based on total bisphenols, of special dihydroxydiphenyl cycloalkanes and 10 to 95 mol-% based on the bisphenols of specific phthaleins, a process for their production and their use as molding compounds.