Novel adhesives

Details Novel adhesives Novel adhesives

1987-11-30

1989-01-10

Lieberman, Allan M.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

422516, 524484, 525 89, B32B 2508

Patent

active

047973226

ABSTRACT:
Novel adhesives comprising an elastomer composition comprising (1) at least 30 percent by weight of a triblock terpolymer elastomer having polystyrene end blocks and rubber poly(ethylene-butylene) midblocks; (2) at least 10 percent by weight of a diblock copolymer elastomer of styrene and ethylenebutylene; and (3) at least 30 percent by weight of non-liquid polyisobutylene, e.g. having a molecular weight of at least 800,000, or a copolymer containing at least 95% by weight of isobutylene; said adhesive composition further containing at least one tackifying resin in an amount sufficient to provide the desired balance of adhesive properties, e.g. tack; and adhesive tapes including same.

REFERENCES:
patent: T100203 (1981-01-01), Lauck
patent: 3519585 (1978-07-01), Miller
patent: 4136071 (1979-01-01), Korpman

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