Latex adhesive for bonding polyether urethane foam

Details Latex adhesive for bonding polyether urethane foam Latex adhesive for bonding polyether urethane foam

1987-05-13

1988-08-09

Griffin, Ronald W.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

156328, 156330, 524906, 525117, 525119, C08L 6302, C08L 302, C09J 316, B05D 302

Patent

active

047628669

ABSTRACT:
A two-part aqueous-based adhesive suitable for dry-bonding a polyether urethane foam to a rigid or semi-rigid substrate consists essentially of (a) an aqueous latex of an anionic emulsion polymer having a Tg of 0.degree. C. or below, preferably -5.degree. to -30.degree. C., an effective amount of a diepoxide or polyepoxide curing agent, and optionally, but preferably, an effective amount of a fugitive plasticizer. The polymer consists essentially of about 10-30% ethylene, 40 to 80% of vinyl acetate, 5-35% of a C.sub.4 -C.sub.8 -dialkyl maleate, and 4-10% of an ethylenically unsaturated acid monomer (e.g., acrylic acid). Suitable substrates include styrene board and fiberglass board.

REFERENCES:
patent: 4104230 (1978-08-01), Chang et al.
patent: 4471082 (1984-09-01), Kwok et al.
patent: 4482659 (1984-11-01), Sanjana et al.
patent: 4510274 (1985-04-01), Okazaki et al.
patent: 4560579 (1985-12-01), Siadat et al.
patent: 4575525 (1986-03-01), Wacome et al.
patent: 4588757 (1986-05-01), Minnis et al.
patent: 4619952 (1986-10-01), Hart et al.

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