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
1994-03-21
1995-01-10
Michl, Paul R.
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...
524141, 524377, 524516, 524547, 524548, 525186, 526287, 526320, 52631841, 428355, C08L 7904, C08F12802, C08F 2010
Patent
active
053807790
ABSTRACT:
A pressure sensitive adhesive composition is described which is water-dispersible under acidic conditions. The composition comprises a terpolymer of a hydrophobic monomeric acrylic or methacrylic ester of a non-tertiary alcohol (monomer A); a polar monomer copolymerizable with said A monomer and having carboxylic, sulfonic acid or hydroxyl functionality or combinations thereof (monomer B); and a water soluble or water-dispersible macromolecular monomer of the formula X--Y--Z which is copolymerizable with A and B wherein X is a copolymerizable moiety containing a double bond, Y is a divalent linking group and Z is a water-dispersible polymeric moiety (monomer C). The combined acid groups employed in the B monomer are neutralized from 5 to 100% based on the total amount of acid groups in B. The composition further comprises tackifier and/or plasticizers at a level such that the ratio of terpolymer to additives falls within a range of from 0.2:1 to 5:1. The pressure sensitive adhesive composition is dispersible under a variety of pH conditions. Also described are tapes comprising the repulpable composition of the invention and their use in papermaking industry.
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DeWitt LaVonda R.
Griswold Gary L.
Kirn Walter N.
Lilly James V.
Michl Paul R.
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