Joint compounds using thickeners prepared from raw cotton...

Details Joint compounds using thickeners prepared from raw cotton... Joint compounds using thickeners prepared from raw cotton...

C - Chemistry, Metallurgy

04

B

C04B 24/38 (2006.01) C04B 28/14 (2006.01)

Patent

CA 2563773

A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a ready mixed joint compound composition wherein the amount of the cellulose ether in the joint compound composition is significantly reduced. When this joint compound composition is mixed with water and applied to a substrate, the water retention, sag resistance, and workability of the wet joint compound are comparable or improved as compared to when using conventional similar cellulose ethers.

L'invention concerne une composition de mélange, comprenant un éther de cellulose produit à partir de linters de coton brut et au moins un additif, utilisée comme composition de composés de joint prémélangée dans laquelle la quantité d'éther de cellulose est significativement réduite. Lorsqu'on mélange la composition de composés de joint avec de l'eau et qu'on l'applique sur un substrat, la rétention d'eau, la résistance au fléchissement et l'aptitude au façonnage sont comparables à celles des éthers de cellulose similaires classiques ou améliorées par rapport à ceux-ci.

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