Low viscosity hot melt pressure sensitive adhesive which exhibit

Details Low viscosity hot melt pressure sensitive adhesive which exhibit Low viscosity hot melt pressure sensitive adhesive which exhibit

1997-10-24

1999-06-15

Szekely, Peter A.

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...

524271, 524274, 524474, 524485, 524486, 524499, 525 89, 525 98, 525 99, C08L 5302, C08L 9304, C08K 501

Patent

active

059122951

ABSTRACT:
This invention relates to a removable grade hot melt pressure sensitive adhesive comprising from about 5% to about 30% by weight of the adhesive of a block copolymer having styrene endblocks and ethylene/butylene or ethylene/propylene midblocks and having a coupling efficiency of less than about 65% and a melt index of greater than about 20 grams/10 minutes; from about 10% to about 50% by weight of the adhesive of at least one block copolymer having styrene endblocks and a coupling efficiency from about 65% to about 100%; from about 20% to about 60% by weight of the adhesive of a tackifying resin and from about 10% to about 40% by weight of the adhesive of a liquid plasticizing oil.

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patent: 5627234 (1997-05-01), Giordano et al.
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