A joint compound additive for reduction of cracking,...

Details A joint compound additive for reduction of cracking,... A joint compound additive for reduction of cracking,...

C - Chemistry, Metallurgy

08

J

C08J 9/32 (2006.01) C08K 3/00 (2006.01) C08K 5/41 (2006.01) C08K 5/42 (2006.01)

Patent

CA 2417110

A joint compound composition comprising a filler, a binder and a hydrocarbon substituted sulfate, sulfonate, sulfuric acid or sulfonic acid is disclosed. The composition of the present invention produces a joint compound that shrinks less and is resistant to cracking and cratering.

L'invention concerne une composition de pâte à joints comprenant une charge, un liant et un sulfate, un sulfonate, un acide sulfurique ou un acide sulfonique à substitution hydrocarbure. La composition de cette invention permet de produire une pâte à joints qui se contracte moins et est résistante au craquelage et à la formation de cratères.

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