Room temperature-curable organopolysiloxane composition

Details Room temperature-curable organopolysiloxane composition Room temperature-curable organopolysiloxane composition

1987-02-09

1988-04-05

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...

522 33, 522 44, 522 46, 522 99, 522148, 522172, 528 30, 528 32, C08L 100

Patent

active

047359714

ABSTRACT:
The inventive organopolysiloxane composition is curable in two ways, firstly, by the irradiation with ultraviolet light and, secondly, by exposure to a moisture-containing atmospheric air. The principal ingredient of the composition is a diorganopolysiloxane having, in a molecule, at least one isopropenyloxysilyl-substituted ethyl or propyl group bonded to the silicon atom of the polysiloxane chain, which is compounded with a mercaptoalkyl-containing organopolysiloxane, a photosensitizer and, optionally, a curing catalyst for the dealcoholation condensation reaction of the silicon-bonded alkoxy groups under the influence of atmospheric moisture. The composition is advantageous in the improved workability by virtue of the adequate tack-free time or the time taken for surface filming.

REFERENCES:
patent: 4558147 (1985-12-01), Eckberg et al.
patent: 4579636 (1986-04-01), Inoue et al.
patent: 4617238 (1986-10-01), Crivello

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