Abstract: It has been found that monovinylidene aromatic/conjugated diene/ethylenically unsaturated acid copolymer compositions are provided with good combinations of physical properties when a sulfoalkyl monomer is employed in minor amounts in such polymer in place of emulsifying additive(s). In particular, the combinations of wet and dry pick resistance have been shown to be maintained or improved when paper coating formulations are prepared from latex polymer compositions according to this invention. Sulfoalkyl (meth)acrylate salts and 2-acrylamido-2-methylpropane sulfonic acid salts are shown to be suitable sulfoalkyl monomers for this purpose.

Abstract: It has been found that monovinylidene aromatic/conjugated diene/ethylenically unsaturated acid copolymer compositions are provided with good combinations of physical properties when a sulfoalkyl monomer is employed in minor amounts in such polymer in place of emulsifying additive(s). In particular, the combinations of wet and dry pick resistance have been shown to be maintained or improved when paper coating formulations are prepared from latex polymer compositions according to this invention. Sulfoalkyl (meth)acrylate salts and 2-acrylamido-2-methylpropane sulfonic acid salts are shown to be suitable sulfoalkyl monomers for this purpose.

Abstract: The use of a sulfoalkyl monomer in monovinylidene aromatic/(meth)acrylate/(meth)acrylic acid monomer latexes has been found to provide surprisingly good combinations of ion stability and moisture resistance. This is shown to be especially beneficial in paper coating and paint formulations. In examples, sulfopropyl methacrylate has proven especially beneficial in a styrene/n-butylacrylate/methacrylic acid latex for use in industrial-type, high strength coatings and formulations for coating offset printing paper.

Abstract: The synthetic coating for the textile substrate consists of a thin film of coagulated polyamide with an open, asymmetrical microporous structure, comprising a first layer in direct contact with said substrate, having large, elongated pores extending transversely to the surface of said film and issuing upon the textile substrate, and a second layer with small, open ovoid pores communicating with both the elongated pores and the surface of the coagulated film.