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:
Dec. 08, 1992
Filed:
Nov. 14, 1990
Applicant:
Inventors:
Robert J Kumpf, Pittsburgh, PA (US);
Dittmar K Nerger, Pittsburgh, PA (US);
Rolf Wehrmann, Krefeld, DE;
Harald Pielartzik, Pittsburgh, PA (US);
Assignee:
Miles Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
525462 ; 525394 ; 525439 ; 525450 ; 525469 ; 525471 ; 528125 ; 528175 ;
Abstract
A block copolymer represented by the formula ##STR1## are formed by contracting an ester group containing poly(aryl ether) composed of the recurring units ##STR2## with a polyarylcarbonate composed of the recurring units ##STR3## in which B, Z, E.sup.5, E.sup.1, E.sup.2 x, y, n and p represent specified groups or values under conditions such that ester/carbonate interchange reactions will occur.