Compounds, compositions and process

Details Compounds, compositions and process Compounds, compositions and process

1983-08-04

1984-05-15

Cockeram, H. S.

Coating processes

With post-treatment of coating or coating material

Heating or drying

260239BC, 528 45, 528 73, 544316, 548320, 4284258, 427 27, C08G 1880, A23L 202, B32B 2740, C07D23330

Patent

active

044488165

ABSTRACT:
Described are compounds characterized by the following formula: ##STR1## wherein C.sub.n H.sub.2n is alkylene from 2 to 12 carbon atoms and C.sub.m H.sub.2m is alkylene from 2 to 20 carbon atoms. Each of the alkylene groups can, optionally, be substituted by inert substituents. The compounds contain a free isocyanato group and a masked isocyanate group, namely, the cyclic urea moiety, which, when the compounds are heated, preferably in the presence of a catalyst, opens to give the group OCN--C.sub.n H.sub.2n --. Thus, the compounds can be reacted via the free isocyanate group with active hydrogen-containing monomers or polymers to form storage stable compositions which, upon heating, are curable via reaction with the cyclic urea group.

REFERENCES:
patent: 3275618 (1966-09-01), Tilley et al.
patent: 3320274 (1967-05-01), Lloyd
patent: 4138398 (1979-02-01), Richter et al.
patent: 4190599 (1980-02-01), Richter et al.
patent: 4217436 (1980-08-01), Richter et al.
patent: 4349663 (1982-09-01), Barsa et al.
Saunders and Frisch, Polyurethanes, Chemistry and Technology, Part I, pp. 8 and 118-121, 1963; Part II, pp. 453-454, 1964.

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