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:
Aug. 01, 2000
Filed:
Mar. 31, 1997
Dow Corning Asia, Ltd., Tokyo, JP;
Abstract
The present invention provides a curable composition which comprises (A) a base-generating substance which generates a base when exposed to the action of ultraviolet light, (B) a siloxane polymer which has silicon-hydrogen bonds (Si--H) capable of reacting with hydroxy groups under the effect of the base to form silicon-oxygen bonds (Si--O) and hydrogen molecules (H.sub.2), and (C) an acid substance. This composition is cured by irradiation with ultraviolet light. During this ultraviolet irradiation, a mask is placed between a coating film of the composition and the radiation source, and the uncured portions of the composition are dissolved and removed so that a pattern is formed. The residual portions are then heated to produce a pattern-cured product.