Acrylic pressure-sensitive adhesives for low-energy surfaces and

Details Acrylic pressure-sensitive adhesives for low-energy surfaces and Acrylic pressure-sensitive adhesives for low-energy surfaces and

1996-12-04

1998-10-06

Marquis, Melvyn I.

Stock material or miscellaneous articles

Composite

Of polyester

428511, 428517, 526282, B23B 2708

Patent

active

058174265

ABSTRACT:
The invention provides inherently tacky PSAs that exhibit excellent adhesion to paper, corrugated board and low-energy surfaces, and comprise an acrylic emulsion polymer formed from (a) a plurality of monomers comprising, based on the total weight of monomers, (i) 9 to 40% isobornyl acrylate and (ii) 50 to 91% of one or more alkyl acrylates; (b) at least one initiator; and at least one emulsifier. In an alternate embodiment, the polymer is formed by solvent polymerization, without an emulsifier. A method for making such PSAs is also provided. In one embodiment, polymerization initiators are added to a monomer emulsion in a stepped feed.

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patent: 5602221 (1997-02-01), Benner et al.
patent: 5683798 (1997-11-01), Bennett et al.
Stueben, Kenneth C., Ultrviolet Cured Pressure -- Sensitive Adhesives, Adhesive Chemistry Developments and Trends, 1984, pp. 319-350.
Japan, JP59226076A, Dec. 1984, Abstract.
Japan, JP61223076A, Oct. 1986, Abstract.
Japan, JP5310810A, Nov. 1993, Abstract.
Japan, JP1315409A, Dec. 1989, Abstract.

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