Repulpable, pressure-sensitive adhesive compositions

Details Repulpable, pressure-sensitive adhesive compositions Repulpable, pressure-sensitive adhesive compositions

1997-10-09

2000-10-24

Mullis, Jeffrey C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524460, 524461, 524804, 525 80, 525 85, 526 78, 526 79, 526 87, 526225, C09J13100, C09J13500

Patent

active

061369039

ABSTRACT:
Repulpable PSA compositions and constructions that exhibit high adhesive performance on a wide range of substrates are provided. In one embodiment, a PSA composition comprises a blend of two emulsion acrylic copolymers. The first type is a repulpable, emulsion acrylic copolymer that passes TAPPI UM 213. Preferably, the copolymer is prepared by sequential polymerization. The second type of copolymer is a non-repulpable, gpp or removable, repositionable, emulsion acrylic copolymer, also preferably prepared by sequential polymerization. The PSA compositions are inherently tacky and can be used in labels and tapes. In addition, they can be added to other PSAs as external tackifiers.

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