Compositions – Fluent dielectric – N-containing
Patent
1975-05-12
1976-06-01
Herbert, Jr., Thomas J.
Compositions
Fluent dielectric
N-containing
252357, 252548, 252DIG1, B01F 1716, C11D 333, C11D 172
Patent
active
039607810
ABSTRACT:
Diaryl urethanes made by capping poly (oxyalkylene) diols with monoisocyanates are characterized by a desirable hydrophobe/hydrophile balance typically evidenced by low cloud points, the ability to form micelles in aqueous media, the ability to reduce stable foam, and the ability to be taken up and retained by paper fibers, the low foaming or de-foaming capability of these compounds is useful in machine dishwashing detergents and additives, which hydrophobe/hydrophile balance is typically obtained through a combination of oxyethylene and oxypropylene units or blocks in the oxyalkylene chain.
REFERENCES:
patent: 2948691 (1960-08-01), Windemuth et al.
patent: 3082172 (1963-03-01), Temple et al.
patent: 3142699 (1964-07-01), Wagner
patent: 3180786 (1965-04-01), Domba et al.
patent: 3334147 (1967-08-01), Brunelle et al.
patent: 3518113 (1970-06-01), MacGuan
patent: 3629319 (1971-12-01), Jonaitis et al.
J. P. Casey, "Pulp and Paper" vol. II, Sec. Ed. Interscience Publishers, N. Y., N. Y., pp. 1178-1179.
Schwartz et al., "Surface Active Agents and Detergents," vol. II, Interscience Publishers, Inc., N. Y., N. Y., 1958, p. 130.
Freis Richard E.
Rue Larry M.
Economic Laboratories, Inc.
Herbert, Jr. Thomas J.
Meshbesher Thomas M.
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