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:
Oct. 01, 2013
Filed:
Sep. 02, 2009
Hidenori Suzuki, Osaka, JP;
Masanori Uesugi, Osaka, JP;
Makoto Kai, Osaka, JP;
Mitsuyoshi Shirai, Osaka, JP;
Hidenori Suzuki, Osaka, JP;
Masanori Uesugi, Osaka, JP;
Makoto Kai, Osaka, JP;
Mitsuyoshi Shirai, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
To provide a composite film having low-temperature flexibility. The composite film including an acrylic polymer and a urethane polymer, in which the acrylic polymer includes an acryl component containing at least an acrylic acid-based monomer and a monofunctional acrylic monomer whose homopolymer has a glass transition temperature (Tg) of 273 K or more; the content of said acrylic acid-based monomer in said composite film is from 0.5 to 15 wt %; the glass transition temperature (Tg ac) of the acrylic polymer is 273 K or more; the glass transition temperature (Tg ur) of the urethane polymer is 273 K or less; and the glass transition temperature (Tg) of the composite film is 269 K or less.