Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1989-11-03
1991-07-30
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
525478, 528 15, 528 31, 528 32, 26433111, C08F 246
Patent
active
050361171
ABSTRACT:
A curable organosilicon composition comprises a component having silicon-bonded hydrogen atoms, a component having silicon-bonded radicals reactive therewith, a curing catalyst, a catalyst-inhibitor and a bath life extender. The use of certain compounds, which are ineffective as a bath life extender in the absence of a catalyst inhibitor, effectively extend the room temperature bath life of a silicone coating composition containing a catalyst inhibitor. Being a substantial non-inhibitor for the catalyst the bath life extender component does not effect the cure time and/or cure temperature of the composition.
This discovery has permitted the preparation of curable coating compositions which have a long bath life at room temperature and a rapid cure time at elevated temperatures which does not drift to longer intervals as the coating compositions ages over a typical production run.
The room temperature cure times of the organopolysiloxane coating compositions of this invention are adequately long, and their cure times at elevated temperature are advantageously brief, that they are useful in fast-paced coating operations, such as adhesive release coating operations wherein the cured coating is further coated with an adhesive in-line, i.e., immediately after being cured.
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patent: 4774111 (1988-09-01), Lo
Chung Kyuha
Wright Antony P.
Yeh Ming-Hsiung
Dow Corning Corporation
Grindahl George A.
Marquis Melvyn I.
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