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. 21, 1982
Filed:
Jun. 11, 1981
Applicant:
Inventors:
Tamaki Kanai, Sagamihara, JP;
Takashi Yamagichi, Yokohama, JP;
Hirofumi Yoshikawa, Hachioji, JP;
Kenji Suzuki, Sagamihara, JP;
Yoshikatsu Ohta, Sagamihara, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ; B32B / ;
U.S. Cl.
CPC ...
264134 ; 2642356 ; 2642358 ; 2642893 ; 2642896 ; 427172 ; 427173 ; 4284237 ; 428484 ;
Abstract
A process for producing an easily adherable biaxially stretched polyester film, which comprises coating a primer composition consisting of (A) and aqueous dispersion of polyurethane and (B) a montan wax salt and optionally a nonionic or anionic surface-active agent on the surface of a polyester film which has not yet been stretched completely, drying the coating, completing the stretching of the coated film, and then heat-setting it thereby to form a primer coated layer on the film surface.