Coating materials and their application prepared from polyisocya

Details Coating materials and their application prepared from polyisocya Coating materials and their application prepared from polyisocya

1978-10-03

1981-03-10

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

252182, 264141, 427 27, 427226, 427435, 4274301, 4284237, C08G 1880

Patent

active

042555515

ABSTRACT:
Powdered, heat-hardenable coating materials with high storage stability and a grain size smaller than 0.25 mm based upon hydroxy-group-containing polyesters with melting points between 40.degree. and 120.degree. C., blocked polyisocyanates and optionally catalysts, wherein the coating material contains polyisocyanates blocked with cyclic amidines of the general formula ##STR1## wherein R=equal or different substituents selected from the group consisting of hydrogen, alkyl-, cycloalkyl-, aralkyl-, and alkyl radicals. A method for the production of the above mentioned coating materials and a process for coating substrates with these materials is also disclosed.

REFERENCES:
patent: 3146493 (1964-09-01), Steinle et al.
patent: 3676402 (1972-07-01), Matsui et al.
patent: 3887476 (1975-06-01), McConnell
patent: 3896082 (1975-07-01), Rensmann et al.
patent: 3956237 (1976-05-01), Doorakian et al.
patent: 4046744 (1977-09-01), Jenkins
patent: 4060655 (1977-11-01), Johannes et al.
patent: 4096291 (1978-06-01), Dunwald et al.
patent: 4151220 (1979-04-01), Watanabe et al.

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