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:
May. 20, 2014
Filed:
Jan. 21, 2010
Masamichi Hikosaka, Higashi-Hiroshima, JP;
Kiyoka Okada, Higashi-Hiroshima, JP;
Kaori Watanabe, Higashi-Hiroshima, JP;
Junichiro Washiyama, Kawasaki, JP;
Hideharu Kimura, Kawasaki, JP;
Koji Yamada, Kawasaki, JP;
Takeshi Nakajima, Kawasaki, JP;
Akihiro Otsubo, Kawasaki, JP;
Masamichi Hikosaka, Higashi-Hiroshima, JP;
Kiyoka Okada, Higashi-Hiroshima, JP;
Kaori Watanabe, Higashi-Hiroshima, JP;
Junichiro Washiyama, Kawasaki, JP;
Hideharu Kimura, Kawasaki, JP;
Koji Yamada, Kawasaki, JP;
Takeshi Nakajima, Kawasaki, JP;
Akihiro Otsubo, Kawasaki, JP;
Hiroshima University, Hiroshima, JP;
Sunallomer Ltd., Tokyo, JP;
Abstract
A polymer sheet according to at least one embodiment of the present invention is a polymer sheet whose main component is oriented nanocrystals of a polymer, and which satisfies the following conditions (I), (II), and (III): (I) having a crystallinity of not less than 70%; (II) having a tensile strength at break of not less than 100 MPa and a tensile modulus of not less than 3 GPa; and (III) having an average thickness of not less than 0.15 mm. According to at least one embodiment of the present invention, it is possible to provide a polymer sheet excelling in properties such as mechanical strength, heat tolerance, and transparency, particularly a polymer sheet having excellent properties such as mechanical strength, heat tolerance, and transparency in general-purpose plastics such as polypropylene.