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. 09, 2009
Filed:
May. 16, 2003
Masayuki Tsutsumi, Ohtsu, JP;
Hisato Kobayashi, Ohtsu, JP;
Keizo Kawahara, Ohtsu, JP;
Shigeto Yoshida, Ohtsu, JP;
Shinsuke Yamaguchi, Ohtsu, JP;
Kazutake Okamoto, Ohtsu, JP;
Akira Takahashi, Ohtsu, JP;
Eiji Kumagai, Ohtsu, JP;
Akinobu Nagara, Ohtsu, JP;
Yoshiko Akitomo, Ohtsu, JP;
Kazumoto Imai, Inuyama, JP;
Naonobu Oda, Inuyama, JP;
Masayuki Tsutsumi, Ohtsu, JP;
Hisato Kobayashi, Ohtsu, JP;
Keizo Kawahara, Ohtsu, JP;
Shigeto Yoshida, Ohtsu, JP;
Shinsuke Yamaguchi, Ohtsu, JP;
Kazutake Okamoto, Ohtsu, JP;
Akira Takahashi, Ohtsu, JP;
Eiji Kumagai, Ohtsu, JP;
Akinobu Nagara, Ohtsu, JP;
Yoshiko Akitomo, Ohtsu, JP;
Kazumoto Imai, Inuyama, JP;
Naonobu Oda, Inuyama, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
An oriented syndiotactic polystyrene-based film composed of an oriented film made of a syndiotactic styrene polymer and an adhesiveness-improving layer formed from a specific water-dispersible resin on at least one surface of the oriented film, which is excellent in the tight adhesion between the oriented film and the adhesiveness-improving layer, the adhesion between the adhesiveness-improving layer and an ink layer or laminate layer applied thereon, economical efficiency, recyclability, and environmental compatibility in production. It is particularly preferable that the film be produced by applying the aqueous dispersion of the water-dispersible resin on unstretched or uniaxially stretched film to form the adhesiveness-improving layer, stretching the obtained laminate uni- or bi-axially at least one time, and then heat-treating the resulting laminate.