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:
Apr. 14, 1998
Filed:
Jun. 05, 1995
Applicant:
Inventors:
Jean-Pierre Assante, Villeurbanne, FR;
Etienne Fleury, Irigny, FR;
Didier Veyrat, St-Cyr-Au-Mont-D'Or, FR;
Assignee:
Rhone-Poulenc Films, Courbevoie Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08K / ;
U.S. Cl.
CPC ...
528277 ; 528272 ; 528275 ; 528277 ; 528279 ; 528286 ; 528295 ; 528301 ; 528302 ; 528307 ; 528308 ; 5283086 ; 524706 ; 524710 ; 524779 ; 524783 ;
Abstract
Oxysulfonylated polyesters, well suited for conversion into oriented composite polyester films, are prepared by polycondensing a lower alkyl diester of at least one aliphatic dicarboxylic acid and a lower alkyl diester of at least one aromatic dicarboxylic acid bearing an oxysulfonyl substituent, and optionally a lower alkyl diester of at least one aromatic dicarboxylic acid, with at least one diol, in the presence of a catalytically effective amount of at least one titanium compound and at least one manganese carboxylate.