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. 29, 1999
Filed:
Jun. 23, 1994
Applicant:
Inventors:
Guerino G Sacripante, Oakville, CA;
Melvin D Croucher, St. Catharines, CA;
Stephan V Drappel, Toronto, CA;
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528170 ; 528172 ; 528173 ; 528183 ; 528220 ; 528229 ; 528271 ; 528272 ; 528274 ; 528288 ; 528322 ; 528332 ; 528335 ; 528338 ; 528350 ; 528353 ;
Abstract
A process for the preparation of polyester-imide resin of the formula ##STR1## wherein n represents the number of segments present and is a number of from about 10 to about 10,000; R' is alkyl or alkylene; and R is independently an oxyalkylene or a polyoxyalkylene by the reaction of trimellitic acid, or a trimellitic anhydride, a glycol and a diamine of the formula ##STR2## wherein R represents a hydrogen or alkyl group; and n represents the number of monomer segments, and is a number of from about 1 to about 10, and which reaction is accomplished by heating the aforementioned components.