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. 22, 2010
Filed:
Sep. 23, 2004
Minoru Onodera, Kurashiki, JP;
Tatsuya Sunamoto, Kurashiki, JP;
Minoru Onodera, Kurashiki, JP;
Tatsuya Sunamoto, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
A method of making a thermotropic liquid crystal polymer film includes continuously heat treating of the thermotropic liquid crystal polymer filmwhile the latter is jointed to a sheet-like support member, and subsequently separating the heat-treated thermotropic liquid crystal polymer filmfrom the support member. The continuous heat treatment of the thermotropic liquid crystal polymer filmthen jointed to the support memberis carried out for a predetermined heating time within the range of 5 to 60 seconds at a predetermined heating temperature T° C. equal to or higher than the melting point Tm° C. of the thermotropic liquid crystal polymer film less 15° C. (i.e., Tm−15° C.), but lower than the melting point Tm° C. (thus, Tm−15° C.≦T° C.<Tm° C.), to thereby increase the thermal expansion coefficient of the thermotropic liquid crystal polymer film.