Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-06-11
1994-04-12
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, 528 18, 528 38, C08G 7738
Patent
active
053026713
ABSTRACT:
A moisture-curable silicone composition, suitable for use as a coating or pressure-sensitive adhesive, is disclosed, said composition comprising (i) a hydroxyl-functional organopolysiloxane resin comprising R.sub.3 SiO.sub.1/2 siloxane units and SiO.sub.4/2 siloxane units in a molar ratio of 0.5/1 to 1.2/1. respectively, wherein R is a hydrocarbon or halogenated hydrocarbon radical: (ii) a diorganopolysiloxane polymer having at least two silicon-bonded alkoxy groups and at least one carbon-bonded amine group in its molecule, said polymer having a viscosity at 25.degree. C. of 20 to 100,000 centipoise, the weight ratio of said resin to said polymer being in the range 20:80 to 80:20; (iii) optionally, a hydrolyzable silane in sufficient amount to provide stability to said composition; and (iv) optionally, sufficient catalyst to accelerate the cure of said composition.
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Brady William P.
Cifuentes Martin E.
Fenton William N.
Schmidt Randall G.
Stickles David L.
Dow Corning Corporation
Marquis Melvyn I.
Severance Sharon K.
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