Acrylic hot melt pressure sensitive adhesive compounds

Details Acrylic hot melt pressure sensitive adhesive compounds Acrylic hot melt pressure sensitive adhesive compounds

1984-10-26

1987-04-07

Seccuro, Carman J.

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...

524314, 524533, 525 64, C08L 5106

Patent

active

046562133

ABSTRACT:
Acrylic pressure sensitive hot melt adhesives having improved creep resistance at ambient temperatures and desirable melt viscosity at elevated application temperatures are prepared by copolymerizing suitable acrylic and methacrylic acids and alkyl esters with 10-40 percent by weight of an acrylate or methacrylate terminated vinyl aromatic monomer based macromolecular monomer.
Compounding these adhesives with suitable tackifiers and plasticizers produces adhesives having low molten viscosity and significantly better shear adhesion, tack, and peel adhesion than is possible with the uncompounded acrylic adhesives.

REFERENCES:
patent: 3786116 (1974-01-01), Milkovich et al.
patent: 4225476 (1980-09-01), Hammer et al.
patent: 4551388 (1985-11-01), Schlademan
patent: 4554324 (1985-11-01), Husman et al.
"Escorez .RTM.5000 Resins . . . "--Exxon Chemical Co., pp. 1-10.

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