Viscosity stable, stainable wood textured caulking composition containing water immiscible organic solvent
AssigneeDeSoto, Inc.
InventorsRita E. Porzel, Cathryn D. Bator
Life of this patent
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Abstract
A viscosity stable, stainable, wood textured aqueous latex caulking composition is disclosed in which wood particles have sorbed therein, water immiscible organic solvent providing a free-flowing, solvent-wet powder. An aqueous emulsion of film-forming resin particles is mixed in and an oily plasticizer for the resin particles is added to provide a T.sub.g below about -40.degree. C. unless the resin particles are internally plasticized. The proportion of wood particles, the solids content of the aqueous emulsion and the proportion of oily plasticizer or other thickener provides a viscous mass of gunable viscosity.
Claims13
A viscosity stable, stainable, wood textured, aqueous latex caulking composition comprising from 5% to 30% of the weight of the composition of wood particles having sorbed therein a water immiscible organic solvent in an amount of at least about 60% of the weight of the wood to provide a free-flowing, solvent-wet powder;
- from about 35% to about 70% by weight of the composition of an aqueous emulsion of film-forming plasticized resin particles coalescable at about -40.degree. C.;
- the proportion of wood particles, the resin solids content of said aqueous emulsion and the plasticization of the resin particles providing a viscous mass of gunable viscosity, and said organic solvent providing viscosity stability.
A method of preparing a viscosity stable, stainable, wood textured, aqueous latex caulking composition which comprises, providing a free-flowing, solvent-wet mixture of water immiscible organic solvent and wood particles of solvent-wet, powder, mixing said free-flowing, solvent-wet powder with an aqueous emulsion of film-forming, thermoplastic acrylic resin particles coalescable at 0.degree. C., and then mixing in an oily plasticizer for said resin particles to increase the viscosity of the mixture, the proportion of said free-flowing powder, the solids content of said aqueous emulsion and the proportion of said oily plasticizer providing a viscous mass of gunable viscosity.
A viscosity stable, stainable, wood textured aqueous latex composition comprising from 5% to 30% of the weight of the composition of wood particles having sorbed therein a water immiscible organic solvent in an amount of at least about 60% of the weight of the wood to provide a free-flowing, solvent-wet powder;
- from about 35% to about 70% by weight of the composition of an aqueous emulsion containing about 45% to about 65% by weight of coalescable film-forming plasticized resin particles;
- the proportion of wood particles, the resin solids content of said aqueous emulsion, and the plasticization of the resin particles providing a viscous mass, and said organic solvent providing viscosity stability.
Dependencies are inferred from the claim text.