Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-06-20
1995-12-05
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 17, C08L 8306
Patent
active
054730260
ABSTRACT:
A moisture-curable silicone hot melt pressure sensitive adhesive composition is disclosed, said composition comprising: (A) a solid alkoxy functional organopolysiloxane resin containing curing radicals of the formula --ZSiR.sup.1.sub.x (OR.sup.2).sub.3-x ; wherein R.sup.1 is a monovalent hydrocarbon radical, R.sup.2 is selected from the group consisting of a alkyl radical and alkoxyalkyl radical, Z is a divalent linking radical, and the subscript x has a value of 0 or 1; (B) a diorganopolysiloxane polymer, each terminal group thereof containing at least one silicon-bonded hydrolyzable functional radical selected from the group consisting of alkoxy radicals having 1 to 4 carbon atoms, ketoxime radicals, aminoxy radicals, acetamido radicals, N-methylacetamido radicals and acetoxy radicals; said polymer having a viscosity at 25.degree. C. of 20 to <100,000 mm.sup.2 /s, and the weight ratio of said resin to said polymer being in the range 40:60 to 80:20; and (C) sufficient catalyst to accelerate the cure of said composition; said composition being an essentially solvent-free, non-slump solid at room temperature which cures to an essentially non-tacky elastomer upon exposure to moisture.
REFERENCES:
patent: 2676182 (1954-04-01), Daudt et al.
patent: 4143088 (1979-03-01), Favre et al.
patent: 4584554 (1986-04-01), Blizzard et al.
patent: 4585836 (1986-04-01), Homan et al.
patent: 4591225 (1986-05-01), Blizzard et al.
patent: 5091484 (1992-02-01), Colas et al.
patent: 5208300 (1993-05-01), Krahnke et al.
patent: 5210156 (1993-05-01), Clark et al.
Cifuentes Martin E.
Schoenherr William J.
Strong Michael R.
VanWert Bernard
Dow Corning Corporation
Glass Margaret W.
Marquis Melvyn I.
Severance Sharon K.
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