Pressure sensitive adhesive compositions comprising a mixture of

Details Pressure sensitive adhesive compositions comprising a mixture of Pressure sensitive adhesive compositions comprising a mixture of

1978-12-26

1980-01-22

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

20415914, 428442, 428443, 428463, 428514, 428520, 526317, C08L 3302, C08L 3308

Patent

active

041850505

ABSTRACT:
There is disclosed a pressure sensitive adhesive composition having improved adhesive strength and tack. This adhesive composition comprises three terpolymers, each terpolymer comprising an alkyl acrylate wherein the alkyl group contains four to fourteen carbon atoms, a vinyl ester of a saturated carboxylic acid having from one to six carbon atoms, and an ethylenically unsaturated carboxylic acid having three to five carbon atoms. The composition of terpolymers comprises a mixture of three of the terpolymers described above wherein each individual terpolymer has a different number average molecular weight. The final terpolymer composition has a specifically defined number average molecular weight, and a specifically defined molecular weight distribution.

REFERENCES:
patent: 3753958 (1973-08-01), Wingler et al.
patent: 3943103 (1976-03-01), Borden et al.
patent: 3971766 (1976-07-01), Ono et al.

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