Curable compositions, method of coating a phototool, and coated phototool

摘要

A curable composition comprises: an epoxy silane represented by formula X—Si(OR1)(OR2)(OR3) wherein R1-R3 represent C1 to C4 alkyl groups, and X represents an organic group having at least one oxirane ring; a fluorinated silane represented by formula; wherein: Rf represents a perfluoroalkyl group having from 3 to 5 carbon atoms, R4 represents H or a C1 to C4 alkyl group, and R5-R7 represent C1 to C4 alkyl groups; and a photoacid. Use of the curable composition to coat a phototool, thereby providing a protective coating on the phototool is also disclosed.

主权项

1. A curable composition comprising:
an epoxy silane represented by formula
X—Si(OR1)(OR2)(OR3)wherein R1, R2 and R3 independently represent alkyl groups having from 1 to 4 carbon atoms, and X represents an organic group having at least one oxirane ring; a fluorinated silane represented by formula wherein:
Rf represents a perfluoroalkyl group having from 3 to 5 carbon atoms;R4 represents H or an alkyl group having from 1 to 4 carbon atoms;R5, R6 and R7 independently represent alkyl groups having from 1 to 4 carbon atoms; andZ represents a linear alkylene group; and a photoacid.