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. 23, 2015
Filed:
Feb. 17, 2009
Applicants:
Hirotsugu Kishimoto, Toyonaka, JP;
Shinji Hashimoto, Kadoma, JP;
Inventors:
Hirotsugu Kishimoto, Toyonaka, JP;
Shinji Hashimoto, Kadoma, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 7/14 (2006.01); C08K 9/08 (2006.01);
U.S. Cl.
CPC ...
C08K 9/08 (2013.01); Y10T 428/24942 (2015.01); C08K 7/14 (2013.01);
Abstract
A transparent film has a high glass transition temperature, yet retaining high transparency. The transparent film includes a glass fiber substrate impregnated with a resin composition in which a high refractive resin having refractive index higher than the glass fiber is mixed with a low refractive resin having refractive index lower than the glass fiber to have resultant refractive index approximate to that of the glass fiber when cured. The high refractive resin includes a cyanate-ester resin so as to increase a glass transition temperature, yet retaining high transparency.