Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2008-05-13
2008-05-13
Cameron, Erma (Department: 1792)
Coating processes
With post-treatment of coating or coating material
Heating or drying
Reexamination Certificate
active
07371433
ABSTRACT:
A composition comprising a silicon-containing copolymer having a number-average molecular weight of 500 to 1,000,000, having SiO bond in the polymer and containing at least the structural units represented by the following general formulae (I) and (II) and, if necessary, one or more of the structural units represented by the following general formulae (III) to (VII) and a cross-linking agent is reacted at −20 to 100° C. for 1 to 3 hours. The resultant reaction composition is coated on a substrate and cured by heating to a temperature of 150° C. or above, for example, 250° C. to obtain a cured product of a silicon-containing copolymer which has a high heat resistance, a high light transmission, a low relative dielectric constant and a high chemical resistance and which has a strong mechanical strength and a good flexibility.wherein R1to R6, R8and R9each independently represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, an aralkyl group, an alkylamino group, an alkylsilyl group or an alkoxy group, R7represents a divalent group, R10represents a divalent aromatic group, and A represents NH or O.
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English language abstract of JP 8-245880 A.
English language abstract of JP 9-188765 A.
English language abstract of JP 9-188851 A.
English language abstract of JP 2002-304949 A.
English language abstract of JP 11-195382 A.
English language abstract of JP 2-175726 A.
AZ Electronic Materials USA Corp.
Cameron Erma
Kass Alan P.
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