Vaporous amine catalyst spray method

Details Vaporous amine catalyst spray method Vaporous amine catalyst spray method

B - Operations, Transporting

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B05D 3/10 (2006.01) B05D 1/02 (2006.01) B05D 1/34 (2006.01) B05D 3/04 (2006.01) C08G 18/08 (2006.01) C08G 18/18 (2006.01) C09D 175/04 (2006.01)

Patent

CA 1233711

VAPOROUS AMINE CATALYST SPRAY METHOD ABSTACT OF THE DISCLOSURE Disclosed is a novel method for applying a film of a coating composition in liquid form onto a substrate which applied film cures rapidly at room temperature without heat curling. The coating composition comprises a hydroxyl-functional compound (preferably bearing aromatic-hydroxyl groups) and a muti-isocyanate cross-linking agent, optionally dispersed in a fugitive organic solvent therefor. The method comprises the steps of: (a) concurrently generating an atomizate of said coating composition and a carrier gas bearing a catalytic amount of a vaporous tertiary amine; (b) mixing said atomizate and said vaporous catalytic amine-bearing carrier gas flow;and (c) directing said mixture of step (b) onto said substrate to from said applied film.

469735

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