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:
Jan. 09, 2007
Filed:
Oct. 20, 2003
Hideaki Takase, Tokyo, JP;
Kentarou Tamaki, Tokyo, JP;
Jun Huangfu, Tokyo, JP;
Tomohiro Utaka, Tokyo, JP;
Yuuichi Eriyama, Tokyo, JP;
Hideaki Takase, Tokyo, JP;
Kentarou Tamaki, Tokyo, JP;
Jun Huangfu, Tokyo, JP;
Tomohiro Utaka, Tokyo, JP;
Yuuichi Eriyama, Tokyo, JP;
JSR Corporation, Tokyo, JP;
Abstract
A radiation-curable composition containing (A) hydrolyzates of hydrolyzable silane compounds represented by general formula (1): (R)(R)Si(X)(wherein Ris a non-hydrolyzable organic group having 1 to 12 carbon atoms that contains fluorine atoms, Ris a non-hydrolyzable organic group having 1 to 12 carbon atoms (but excluding ones that contain fluorine atoms), X is a hydrolyzable group, p is an integer of 1 or 2, and q is an integer of 0 or 1) and condensates of such hydrolyzates, and (B) a photo acid generator, wherein the ratio of silanol (Si—OH) groups in the composition is 0.1 to 0.5 out of all the bonding groups on Si. With such a composition, the waveguide loss is low for light having a wavelength in a broad range from the visible region to the near infrared region, and moreover the cracking resistance, the patterning ability upon irradiation with radiation, and so on are excellent.