Heat resistant binders

Details Heat resistant binders Heat resistant binders

C - Chemistry, Metallurgy

08

J

117/43, 400/9051

C08J 5/04 (2006.01) D04H 1/64 (2006.01) D06N 5/00 (2006.01)

Patent

CA 1321439

ABSTRACT Heat resistant binders for flexible nonwoven mats may be prepared using an emulsion polymer comprising 100 parts by weight of acrylate or styrene/acrylate monomers, 3 to 6 parts of a blocked, N-methylol containing comonomer, 0 to 3 parts of a water soluble non-blocked N- methylol containing comononer and 0 to 5 parts of a multifunctional comononer. The use of the blocked N-methylol containing comononer permits the incorporation into the latex binders of higher levels of N-methylol functionality with consequent increase in heat resistance. As such, the binders are useful in the formation of heat resistant flexible mats for use in roofing, flooring and filtering materials.

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