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:
Jun. 22, 1993
Filed:
Feb. 25, 1991
Applicant:
Inventors:
Robert Kumpf, Pittsburgh, PA (US);
Rolf Wehrmann, Krefeld, DE;
Harald Pielartzik, Krefeld, DE;
Dittmar Nerger, Pittsburgh, PA (US);
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08C / ;
U.S. Cl.
CPC ...
528128 ; 528125 ; 528126 ; 528171 ; 528172 ; 528173 ; 528174 ; 528175 ; 528212 ; 528214 ; 528215 ; 528216 ; 528218 ; 528219 ;
Abstract
The new aromatic polyethers containing ester groups, which are distinguished by high dimensional stability, may be used for the production of all kinds of moulded products as well as for the preparation of block copolymers of aromatic polyether segments and segments of other thermoplastic polymers.