Room temperature curable solventless silicone coating compositio

Details Room temperature curable solventless silicone coating compositio Room temperature curable solventless silicone coating compositio

1994-07-13

1995-08-29

Marquis, Melvyn I.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

427 96, 428335, 428336, B32B 3300

Patent

active

054458730

ABSTRACT:
A room temperature curable solventless silicone coating composition includes (A) an organopolysiloxane end-blocked with a hydroxyl radical, (B) a tri- or tetra-hydrocarbonoxysilane or a partial hydrolyzate thereof, and (C) a curing catalyst in the form of an organic carboxylate of a heavy metal, an organic titanate ester, a guanidyl-substituted alkoxysilane, or an organic compound having a guanidyl radical containing a siloxane. When it has a viscosity of 20 to 500 centipoise at 25.degree. C., it is easily applicable by conventional coating techniques such as dipping and spraying, and quickly cures at room temperature into uniform coatings, suitable for covering circuit boards.

REFERENCES:
patent: 4180642 (1979-12-01), Takago
patent: 4460740 (1984-07-01), Arai
patent: 5130401 (1992-07-01), Arai et al.
patent: 5196477 (1993-03-01), Arai et al.

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