Heat resistant binders

Details Heat resistant binders Heat resistant binders

1989-04-10

1990-01-09

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

427412, 428290, 428483, 428489, 428920, B05D 138, B32B 1104, B32B 2708, B32B 2730

Patent

active

048927856

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 comonomer and 0 to 5 parts of a multifunctional comonomer. The use of the blocked N-methylol containing comonomer 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.

REFERENCES:
patent: 3241994 (1962-10-01), Madaras et al.
patent: 4859508 (1989-08-01), Pangrazi et al.

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