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:
Mar. 02, 1993
Filed:
May. 29, 1991
Shin-Etsu Chemical Company, Limited, Tokyo, JP;
Abstract
The invention provides a high-sensitivity ultraviolet-curable organopolysiloxane composition suitable for use as a surface-release treatment of various substrate such as release-paper sheets and the like. The composition comprises, as the essential ingredients, (a) an organopolysiloxane having a viscosity in the range from 50 to 3000 centipoise at 25.degree. C. and containing, in a molecule, at least one (meth)acryloxy-substituted monovalent hydrocarbon group or at least one epoxy- or glycidyloxy-substituted monovalent hydrocarbon group, and (b) a sulfonate compound such as 2-hydroxy-3-oxy-2,3-diphenylpropyl methanesulfonate as the photopolymerization initiator. The sensitivity of the composition to photopolymerization can be further increased by the addition of a specific salt such as sodium hexafluoroantimonate and sodium hexafluorophosphate.