Hot-melt silicon pressure sensitive adhesives with phenyl-contai

Details Hot-melt silicon pressure sensitive adhesives with phenyl-contai Hot-melt silicon pressure sensitive adhesives with phenyl-contai

1991-12-17

1992-11-10

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...

524268, 524588, 525477, 427387, C08K 554

Patent

active

051624109

ABSTRACT:
Hot-melt silicone pressure sensitive adhesive compositions, methods of using the compositions, articles made using the compositions, and methods of making articles using the compositions. The hot-melt silicone pressure sensitive adhesive compositions include a mixture of (i) a silicone resin, (ii) a polyolimethylsiloxane fluid, and (iii) from about 0.5 to about 20 weight percent, based on the total weight of the silicone resin and the polydimethylsiloxane fluid, of a polyphenylmethylsiloxane fluid having a viscosity at 25.degree. C. of from about 5 to about 60,000 centistokes so that the adhesive will be in a generally flowing state at temperatures above about 100.degree. C., as well as being capable of transdermal drug delivery.

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"Customizing Silicone Adhesives for Transdermal Drug Delivery Systems", by William R. Pfister, reprinted from Pharmaceutical Technology, Mar. 1989 (10 pages).

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