Tape joint cement compositions

Details Tape joint cement compositions Tape joint cement compositions

C - Chemistry, Metallurgy

08

L

400/1350

C08L 3/02 (2006.01) C04B 26/02 (2006.01) C08L 31/04 (2006.01) C09D 5/34 (2006.01) C09K 3/10 (2006.01)

Patent

CA 1212492

TAPE JOINT CEMENT COMPOSITION Abstract of Disclosure Tape joint cement compositions suitable for use with wallboard are disclosed wherein at least one hydroxypropyl- hydroxyethylcellulose having specified substitution levels is employed as the water retention aid and thickener. Blends of hydroxypropylhydroxyethylcellulose with a) at least one cellulose ether, such as, hydroxyethylcellulose, hydroxy- propylcellulose, methylcellulose, methylhydroxyethylcellu- lose, and methylhydroxypropylcellulose or b) a hydroxy- alkylguar, such as hydroxypropylguar and hydroxyethylguar are also disclosed.

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