Adhesion of silicone sealant

Details Adhesion of silicone sealant Adhesion of silicone sealant

1988-01-28

1989-01-10

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528 17, 528 33, 528 34, 528 38, 528901, 427387, 428447, 428450, 428452, C08L 8304

Patent

active

047974460

ABSTRACT:
An improved one-part moisture curable silicone sealant is disclosed which bonds cohesively to a wide variety of substrates under a wide variety of exposure conditions. The composition consists essentially of a hydroxyl endblocked polydiorganosiloxane, alkyltrialkoxysilane, titanium catalyst, optional filler, silane of the formula (MeO).sub.3 SiCH.sub.2 CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 NH.sub.2 in an amount such that there is from 0.1 to 1.0 mole of silane per mole of titanium in the titanium catalyst, and silane of the formula ##STR1## in an amount such that there is at least 25 percent on a molar basis of the amount of the amine functional silane and less than about 5 percent by weight based upon the weight of the polydiorganosiloxane.

REFERENCES:
patent: 3175993 (1965-03-01), Weyenberg
patent: 3334067 (1967-08-01), Weyenberg
patent: 3499859 (1970-03-01), Matherly
patent: 4483973 (1984-11-01), Lucas et al.
patent: 4602078 (1986-07-01), Joseph et al.

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