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:
Aug. 08, 1995
Filed:
Jul. 07, 1993
Applicant:
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
524167 ; 2642106 ; 2642107 ; 264211 ; 2642902 ; 264349 ; 524170 ; 524171 ; 524367 ; 524368 ; 524370 ;
Abstract
A process for producing a polyester film having a high strength and a high modulus of elasticity, which includes preparing a polyester resin composition comprising, adding to a polyester resin, 0.1 to 10 parts by weight, based on 100 parts by weight of the polyester resin, of an additive compound selected from the group consisting of compounds represented by the general formula (I): ##STR1## and compounds represented by the following general formula (II): ##STR2## and subjecting the resin composition to monoaxial or biaxial stretching.