Two-stage cure coating compositions

Details Two-stage cure coating compositions Two-stage cure coating compositions

C - Chemistry, Metallurgy

09

D

C09D 133/14 (2006.01) B05D 3/02 (2006.01) C08G 18/62 (2006.01) C09D 175/04 (2006.01)

Patent

CA 2348201

This invention provides for a two-pack solvent based coating composition that cures in two stages when applied over substrates. The first stage of the cure takes place rapidly under ambient conditions to produce a coating surface that can be readily sanded or buffed. Thereafter, over a period of days a second stage cure takes place to produce a coating having excellent coating properties. Thus, a coated component, such as automotive body, can be speedily moved out from a spray booth without affecting the surface quality of the coated surface. As a result, coating operation productivity can be increased. The aforedescribed dual cure properties of the coating composition result from including in a binder component of the coating composition an acrylic polymer having secondary amine and hydroxyl functionalities. The composition is most suited for use in automotive refinish applications.

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