High block, tack and scrub resistant coating composition
OwnerTyler Bell, Robert Sandoval +2inventors
InventorsTyler Bell, Robert Sandoval, Mary Jane Hibben, Michael C. Wildman
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Abstract
The present invention is directed to a coating composition or paint comprising a multistage latex with at least first and second stages, wherein the composition or paint is substantially free of volatile organic compounds (VOC) and capable of film formation even in the absence of coalescent agents. The base paint formulation is capable of being tinted at a point-of-sale (i.e. in-store) using a colorant composition of a type and quantity required to produce a paint of desired color and finish. The paints, show improved block resistance, scrub resistance and tack resistance.
Claims28
A coating composition, comprising:
- an in-store tintable liquid base paint formulation, comprising
- a multistage latex polymer having at least a first stage with a Tg of greater than about 0 to 120° C. and at least about 1% by weight acrylic acid monomer;
- and at least a second stage with a Tg of −35 to 10° C.;
- and
- a fluorosurfactant;
- and
- about 0 to 15 wt % of one or more colorant compositions having volatile organic content (VOC) of less than about 50 g/L;
- which colorants are added to the base paint formulation at a point-of-sale to achieve a desired color;
- wherein the coating composition displays a scrub resistance of at least about 800 scrubs.
A coating composition, comprising:
- an in-store tintable liquid base paint formulation, comprising
- a multistage latex polymer having at least a first stage with a Tg of greater than about 0 to 120° C. and at least about 1% by weight acrylic acid monomer;
- and at least a second stage with a Tg of −35 to 10° C.;
- wherein the difference in Tg of the first and second stage monomers (ATg) is less than about 60° C.;
- and
- a fluorosurfactant;
- and
- about 0 to 15 wt % of one or more colorant compositions having volatile organic content (VOC) of less than about 50 g/L;
- which colorants are added to the base paint formulation at a point-of-sale to achieve a desired color;
- wherein the coating composition displays a scrub resistance of at least about 800 scrubs, and a block resistance rating of at least 6.
A coating composition, comprising:
- an in-store tintable liquid base paint formulation, comprising
- a multistage latex polymer having at least a first stage with a Tg of 25° C. to 75° C. and at least about 1% by weight acrylic acid monomer;
- and at least a second stage with a Tg of −35 to 10° C.;
- wherein the monomers forming the first stage or second stage comprise diacetone acrylamide;
- and
- a fluorosurfactant;
- and
- about 0 to 15 wt % of one or more colorant compositions having volatile organic content (VOC) of less than about 50 g/L;
- which colorants are added to the base paint formulation at a point-of-sale to achieve a desired color;
- wherein the coating composition displays a scrub resistance of at least about 800 scrubs, and a block resistance rating of at least 6.
Dependencies are inferred from the claim text.