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
1992-04-09
1993-07-06
Schofer, Joseph L.
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...
524548, 522 79, 522 84, 522167, 523105, C08K 505
Patent
active
052254739
ABSTRACT:
Hydrophilic, cohesive, pressure-sensitive adhesive compositions are provided comprising a) a crosslinked, swellable polymeric matrix made from an N-vinyl lactam monomer and a multi-ethylenically unsaturated compound, wherein the ethylenic groups are vinyl groups, allyl groups, and/or methallyl groups, which groups are bonded to nitrogen or oxygen atoms, and b) a plasticizer for the copolymer wherein the amount of the multi-ethylenically unsaturated compound and the plasticizer are present in amounts sufficient to render the polymeric matrix cohesive, swellable and pressure-sensitive adhesive. These compositions can also be used as adhesives for biomedical electrodes and transdermal drug delivery systems.
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Delmendo R. H.
Griswold Gary L.
Hornickel John H.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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