Method for rapid hardening of asphalt emulsions

Details Method for rapid hardening of asphalt emulsions Method for rapid hardening of asphalt emulsions

1974-11-06

1976-01-13

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 285AS, 427138, 427426, C08L 9100

Patent

active

039323315

ABSTRACT:
Asphalt emulsions are rapidly hardened by incorporating therein an isocyanate-terminated urethane prepolymer formed by reacting one equivalent of the OH group of a polyalkylene glycol having the following formula ##EQU1## wherein p + r .gtoreq. q, q .gtoreq. O, p .gtoreq. 1, r .gtoreq. 1 and 20 .ltoreq. p + q + r .ltoreq. 100, with 1.1 to 2.0 equivalents of the NCO group of an organic diisocyanate.

REFERENCES:
patent: 3179610 (1965-04-01), Wood

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