Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-08-01
1976-01-06
Cockeram, H. S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 75NK, 260 775AB, 260 775AC, 260 775AN, 427 25, C08G 1880, C08G 1842
Patent
active
039311171
ABSTRACT:
Coating powders for use in the preparation of protective films comprising a mixture of a caprolactam-blocked organic polyisocyanate and a hydroxy-containing polyester or a hydroxy-containing acrylic or methacrylic polymer, wherein the acrylic or methacrylic polymer is derived from the polymerization reaction of a hydroxy lower alkyl acrylate or methacrylate, one or more lower alkyl acrylates or methacrylates, and optionally styrene or vinyl toluene. The proportions of the .epsilon.-caprolactam-blocked organic polyisocyanates and the hydroxy-containing polyesters or acrylic or methacrylic polymers in the mixture are such that there are about 0.8 to 1.20 blocked isocyanate groups for each hydroxy group in the polyester or acrylic or methacrylic polymer.
REFERENCES:
patent: 3210272 (1965-10-01), Foster et al.
patent: 3659003 (1972-04-01), Johnson et al.
patent: 3660355 (1972-05-01), Johnson et al.
patent: 3660359 (1972-05-01), Labana
patent: 3819586 (1974-06-01), Rudolph et al.
patent: 3822240 (1974-07-01), Schmitt et al.
Cockeram H. S.
Cook Paint and Varnish Company
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