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. 26, 2009
Filed:
Nov. 18, 2005
Jun Kanega, Kitaibaraki, JP;
Ji-shan Jin, Kitaibaraki, JP;
Katsumi Suzuki, Kitaibaraki, JP;
Takashi Enokida, Kitaibaraki, JP;
Keisuke Kokin, Kitaibaraki, JP;
Jun Kanega, Kitaibaraki, JP;
Ji-Shan Jin, Kitaibaraki, JP;
Katsumi Suzuki, Kitaibaraki, JP;
Takashi Enokida, Kitaibaraki, JP;
Keisuke Kokin, Kitaibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
A fluorine-containing copolymer, which comprises a hydroxyl-terminated fluorine-containing vinyl ether, represented by the following general formula:CF═CFORCHOH(where Rf is a fluoroalkylene group, a fluoroalkyl ether group, or a fluoroalkoxyfluoroalkyl ether group, having 1-25 carbon atoms), and at least one of other fluorine-containing unsaturated monomers, where a high-molecular weight fluorine-containing copolymer having a melt viscosity (230° C.) of 0.1-100 g/10 min. is insoluble in a solvent, and can be used suitably for melt molding, whereas a low-molecular weight fluorine-containing copolymer having a glass transition temperature Tg of 20° C., or higher, and a number average molecular weight Mn of 1,000, or more is soluble in a solvent, and can be used suitably for coating agents, etc. The fluorine-containing copolymer has a high light transmissivity, and a low refractive index, and also has, as such, a good adhesiveness to various substrated without any surface treatment, any adhesives, or the like.