Patent ID: 8822566
Filing Date: 2014-09-02
Classification: C04B,C09D,E04F

Abstract:
1. A wallboard joint compound, comprising: a base joint compound comprising a homogeneous, paste-like blend of water and at least one of a filler; a binder, a thickener, a suspending agent, a biocide, a preservative, a mineral filler and expanded perlite; an additive exclusive of—ingredients listed above and discretely added during manufacturing to said base joint compound, that remains discrete and not mixed, to be dispersed throughout said base joint compound by a user just prior to application of said wallboard joint compound; wherein said additive is surfactant sodium dodecylbenzene sulfonate; and wherein the base joint compound has independent utility, remains substantially reaction-free with the discretely added sodium dodecylbenzene sulfonate and so will remain in a smooth creamy state prior to user dispersal of said additive, and further experiences at least a 10% reduction in viscosity after approximately 30 seconds of mixing compared to joint compounds having the same additive homogenously added during manufacturing, wherein prior to user dispersal of said wallboard joint compound, said additive is homogeneously incorporated into said base joint compound.