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
1996-11-18
1998-05-26
Krass, Frederick
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...
5147721, 5147723, 524268, 525452, 525474, 525477, A61F 1302
Patent
active
057565724
ABSTRACT:
A pressure sensitive adhesive composition comprises a mixture of (A) a silicate resin, (B) a silicone fluid, and (C) a thermoplastic multi-segmented copolymer which is a product of the reaction between a diisocyanate and a reactive polyorganosiloxane having two groups reactive with isocyanate thereon. The thermoplastic multi-segmented copolymer comprises from about 1 to about 40 weight percent hard segments derived from reactants selected from the group consisting of organic diisocyanates, organic diols, and organic diamines and from about 60 to about 99 weight percent soft segments comprising from about 15 to about 99 weight percent, based on the weight of the thermoplastic multi-segmented copolymer, of polyorganosiloxane units and from about 0 to about 70 weight percent, based on the weight of the thermoplastic multi-segmented copolymer, of polyalkylene oxide units.
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Sweet Randall P.
Ulman Katherine L.
Dow Corning Corporation
Gearhart Richard I.
Krass Frederick
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