Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Reexamination Certificate
2005-09-09
2008-10-07
Berman, Susan W (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
C522S142000, C522S144000, C522S148000, C525S422000, C528S025000, C528S026000
Reexamination Certificate
active
07432313
ABSTRACT:
A solvent-free polyimide silicone resin composition comprising(a) a polyimide silicone resin having repeating units represented by the following formula (1-1) and repeating units represented by the following formula (1-2), a film of said resin with a thickness of 100 μm prepared on a quartz glass substrate having a light transmittance of 80% or higher at wavelengths of from 350 nm to 450 nm,(b) a reactive diluent, and(c) a photopolymerization initiatorwherein X is a tetravalent organic group, Y is a divalent organic group, and Z is a divalent organic group represented by the following formula (2),wherein R1may be different from each other and is a monovalent hydrocarbon group having 1 to 8 carbon atoms, which group may be substituted, R2is a monovalent hydrocarbon group having a photopolymerizable group, a and b are each an integer of from 1 to 100 with a+b≦100.
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Sugo Michihiro
Yoneda Yoshinori
Berman Susan W
Birch & Stewart Kolasch & Birch, LLP
Shin-Etsu Chemical Co. , Ltd.
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