Polyisocyanates blocked with hydroxamic acid esters or acyl hydr

Details Polyisocyanates blocked with hydroxamic acid esters or acyl hydr Polyisocyanates blocked with hydroxamic acid esters or acyl hydr

1975-11-28

1977-02-15

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775TB, 260 775CR, 260 775AB, C08G 1804

Patent

active

040081923

ABSTRACT:
A thermosetting coating composition contains a polyisocyanate blocked with a hydroxamic acid ester or an acyl hydroxamate. The polyisocyanate in the coating composition may be activated by dissociation of the blocking agent and polyisocyanate at a lower temperature than the blocked polyisocyanate of conventional coating compositions.

REFERENCES:
patent: 2882260 (1959-04-01), Bartl et al.
patent: 3499852 (1970-03-01), Schroeder et al.
patent: 3694389 (1972-09-01), Levy
patent: 3748315 (1973-07-01), Wooster
patent: 3867347 (1975-02-01), Felber et al.
patent: 3926875 (1975-12-01), Tsugukuni et al.
patent: 3931117 (1976-01-01), Leonard
Journal of Organic Chemistry, vol. 27, p. 3131, (1962), by J. Cooley.

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