Heat-activatable polyurethane powder coatings

Details Heat-activatable polyurethane powder coatings Heat-activatable polyurethane powder coatings

1975-10-14

1978-01-17

Cockeram, H.S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 292TN, 260 775AM, 260830P, 26085875NE, 260 775AA, C08G 1812, C08L 7500, C08J 312

Patent

active

040692086

ABSTRACT:
A heat-activatable polyurethane powder composition is prepared which contains both epoxy and amino end groups, the distribution of which is determined by the order in which the reactants are brought together. When the powder is deposited on a substrate and heated above its melting point, the epoxy groups react with the active hydrogens available from the amino groups, resulting in the formation of a high molecular weight polyurethane film.

REFERENCES:
patent: 2830038 (1958-04-01), Pattison
patent: 3236812 (1966-02-01), McElroy
patent: 3655627 (1972-04-01), Hutzler et al.
patent: 3787525 (1974-01-01), McGarr
patent: 3850880 (1974-11-01), Hakansen et al.

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