Urethane-base sealing material

Details Urethane-base sealing material Urethane-base sealing material

1977-06-14

1978-10-31

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 326NR, 260 37N, C08K 520

Patent

active

041234120

ABSTRACT:
A thixotropic urethane-base sealing material comprising a base polymer selected from the group consisting of a urethane prepolymer and a mixture thereof with a polyol, prior to being hardened, colloidal silica or bentonite used as an anti-sag agent, and an additive used in synergistic combination with the anti-sag agent selected from the group consisting of a sulfoxide expressed by the formula

REFERENCES:
patent: 3401050 (1968-09-01), Scheibelhoffer
patent: 3401137 (1968-09-01), Finelli
patent: 3446771 (1969-05-01), Matsubayashi
patent: 3607822 (1971-09-01), Nishino
A. Damusis, "Sealants," Reinhold Pub., New York, 1967, pp. 144, 145.

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