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. 06, 1994
Filed:
Nov. 06, 1992
Applicant:
Inventor:
Yoshihiko Ito, Yokohama, JP;
Assignee:
Diafoil Hoechst Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B29C / ;
U.S. Cl.
CPC ...
428335 ; 26421112 ; 26421119 ; 2642112 ; 427387 ; 4273882 ; 4273884 ; 428336 ; 428447 ; 428451 ; 428480 ; 428483 ; 428910 ;
Abstract
A polyester film having a coating layer provided with excellent mold release property, slipperiness, heat resistance and flatness is disclosed. The laminated polyester film is prepared by applying at least on one surface of a polyester film an aqueous solution or dispersion containing a polysiloxane-polyvinyl graft copolymer which comprises a silane comprising structural units of the formulas (1) and (2) indicated below or the hydrolysate thereof and in which not less than 80 wt % of the siloxane portions are dimethylsiloxane, and, thereafter, stretching and drying.