| 摘要 |
Coating compositions suitable for use as house paints resistant to stains extractable from redwood, cedar and other wood substrates are prepared by a process characterized by the essential stages of (1) emulsifying under alkaline conditions a film-forming oxidatively curable oil or alkyd modified polyurethane, (2) blending therewith a copolymeric or homopolymeric vinyl acetate or acylic latex and (3) incorporating into the mixture aluminum chlorhydrate in the proportion of 10-20% by weight of the polyurethane polymer.
|
