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US 10,781,139 B2Granted
Joint compound with sulfonated starch
AssigneeUnited States Gypsum Company
InventorsRenee J. Weinberger, Runhai Lu, Yijun Sang, Guy L. Rosenthal
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Abstract
Provided herein is a joint compound having a composition to allow tools to easily clean up, comprising water, at least one inert filler, and a binder comprising a sulfonated starch, and a method of preparing the joint compound.
Claims20
A joint compound having a composition to allow tools to easily clean up, comprising
- at least one inert filler, wherein the at least one inert filler comprises at least one of calcium carbonate, dolomite, gypsum, perlite, mica, talc, sericite, diatomaceous earth, clay, attapulgite clay, sepiolite, kaolin, calcium sulfate dihydrate, and pyrophyllite, and
- a sulfonated starch binder present in the composition in a concentration of from about 0.05% to about 10% by weight on a dry (water free solids) basis;
- wherein the sulfonated starch binder comprises the moiety
- —CH2O—X, X is —RSO3Na or —H, wherein at least one X is —RSO3Na, and the R is C2-C18 alkyl or arylalkyl,
- wherein the composition has an absence of plant protein.
2 more elements
A joint compound having a composition to allow tools to easily clean up, wherein the composition consists of:
- at least one inert filler wherein the at least one inert filler is at least one of calcium carbonate, dolomite, gypsum, perlite, mica, talc, sericite, diatomaceous earth, clay, attapulgjte clay, sepiolite, kaolin, calcium sulfate dehydrate, and pyrophyllite, and
- a sulfonated starch binder present, in the composition in a concentration of from about 0.05 to about 10% by weight on a dry (water free solids) basis, and optionally at least one additional binder selected from latex binder, vinyl acetates, acrylics, polyvinyl alcohols, and poly vinyl acetate dispersible powders, ethylene vinyl acetates dispersible powders, and non-sulfonated starches;
- wherein the sulfonated starch binder comprises the moiety
- —CH2O—X, X is —RSO3Na or —H, wherein at least one X is —RSO3Na, and the R is C2-C18 alkyl or arylalkyl,
- optionally at least one of a thickener, a preservative, a pH modifier, a pigment, a PEG 400-PEG 1000 polyethylene glycol, suspending agent and dispersant;
- wherein the thickener is cellulose compound,
- wherein the preservative is at least one of a bactericide, a fungicide, and biocide,
- wherein the suspending agent or dispersant is at least one of clay and hydrous magnesium silicate,
- optionally at least one of humectants, wetting agents, kaolin, defoamers and plasticizers, and
- optionally water.
7 more elements
A joint compound having a composition to allow tools to easily clean up, comprising:
- at least one inert filler, wherein the at least one inert filler comprises at least one of calcium carbonate, dolomite, gypsum, perlite, mica, talc, sericite, diatomaceous earth, clay, attapulgite clay, sepiolite, kaolin, calcium sulfate dihydrate, and pyrophyllite, and
- a sulfonated starch binder present in the composition in a concentration of from about 0.05 to about 10% by weight on a dry (water free solids) basis;
- wherein the sulfonated starch binder comprises the moiety
- —CH2O—X, X is —RSO3Na or —H, wherein at least one X is —RSO3Na, and the R is C2-C18 alkyl or arylalkyl
- wherein all binder of the composition consists of said sulfonated starch binder and optionally at least one additional binder selected from latex binder, vinyl acetates, acrylics, polyvinyl alcohols, and poly vinyl acetate dispersible powders, ethylene vinyl acetates dispersible powders, and non-sulfonated starches.
2 more elements
Dependencies are inferred from the claim text.