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...
Patent
1987-11-02
1989-05-16
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...
524265, 524266, 524588, 524730, 524731, 524860, 525477, 525100, 525105, 525106, 525453, 528 15, 528 34, 528 18, 528 19, 528901, C08K 554
Patent
active
048310700
ABSTRACT:
A composition and method for forming elastomeric pressure sensitive adhesives comprising a mixture of (A) a xylene-soluble resin copolymer of 0.6 to 0.9 triorganosiloxy units per SiO.sub.4/2 unit and having less than 0.7 weight % silicon-bonded hydroxyl units. (B) a polydiorganosiloxane fluid endcapped with silicon-bonded hydroxyl groups and having a viscosity of from about 50 to 300,000 cP. at 25.degree. C., an organosilicon compound containing an average of more than two silicon-bonded alkoxy groups per molecule, and a condensation catalyst. The cured elastomeric pressure sensitive adhesives formed from these compositions are useful as medical adhesives, such as those used for ostomy seals.
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McInally Linda J.
Woodard John T.
Cornwall Susan M.
Dow Corning Corporation
Marquis Melvyn I.
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