Removable pressure-sensitive adhesive compositions comprising ac

Details Removable pressure-sensitive adhesive compositions comprising ac Removable pressure-sensitive adhesive compositions comprising ac

1991-04-16

1993-08-31

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...

524556, 524558, 524559, 524561, C08L 3308

Patent

active

052409899

ABSTRACT:
A removable pressure sensitive adhesive composition comprises an acrylic-based emulsion polymer having a gel content of from about 70 to about 90%. The polymer comprises about 90 to 99.5 parts alkyl acrylate monomers, up to about 2 parts polar monomers and up to about one part of a multifunctional acrylate monomer. The polymer is sythesized in the presence of a combination of anionic and non-ionic emulsifiers wherein the amount of anionic emulsifer exceeds the amount of non-ionic emulsifier. The composition preferably comprises one or more adhesion stabilizers, preferably a plasticiser in an amount of up to about 3% by weight and a protective colloid in an amount of up to about 1% by weight.

REFERENCES:
patent: 4234467 (1980-11-01), Ryrfors et al.
patent: 4322516 (1982-03-01), Wiest et al.

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