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:
Jul. 29, 2003
Filed:
Jul. 21, 1999
Applicant:
Inventors:
Hisato Kobayashi, Ohtsu, JP;
Keiji Mori, Ohtsu, JP;
Naonobu Oda, Tsuruga, JP;
Tadashi Okudaira, Ohtsu, JP;
Assignee:
Toyo Boseki Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/306 ;
U.S. Cl.
CPC ...
C08G 6/306 ;
Abstract
A film of the present invention includes, as its main component, an aliphatic polyester whose primary repeating unit is represented by a general formula —O—CHR—CO— (where R denotes H or an alkyl group having a carbon number of 1-3). A three-dimensional surface roughness SRa of at least one side of the film is about 0.01 &mgr;m to about 0.1 &mgr;m. PCC value denoting the number of projections on the film per a unit of area along a mean roughness plane and the three-dimensional surface roughness SRa satisfy the following relationship: PCC value≦7000-45000×SRa.