Abstract: A curable polymer latex composition obtainable by: (a) subjecting a monomer mixture comprising i. at least one conjugated diene; ii. at least one ethylenically unsaturated nitrile; iii. optionally at least one ethylenically unsaturated acid; iv. optionally at least one further ethylenically unsaturated compound different from any of the compounds (i)-(iii); to free-radical emulsion polymerization in an aqueous reaction medium to form a raw polymer latex; and (b) allowing the obtained raw latex to mature in the presence of at least one thiocarbonyl-functional compound, wherein the at least one thiocarbonyl-functional compound is present in an amount of at least 0.05 wt.-%, based on the total amount of monomers subjected to free-radical emulsion polymerization in step (a), and (c) optionally compounding the matured polymer latex with one or more cross-linking agent. Methods for making such curable polymer latex composition or rubber articles made therefrom, respectively.

Abstract: The present invention relates to a polymer latex for dip-molding applications including: particles of a carboxylated conjugated diene nitrile latex polymer in combination or association with particles of a latex polymer including at least one oxirane-functional group, to the use of said polymer latex for the production of dip-molded articles or for coating or impregnating a substrate, to compounded compositions including said polymer latex, to a method for making dip-molded articles and to articles made by using said polymer latex.

Abstract: The present invention relates to a polymer latex for dip-molding applications including: particles of a carboxylated conjugated diene nitrile latex polymer in combination or association with particles of a latex polymer including at least one oxirane-functional group, to the use of said polymer latex for the production of dip-molded articles or for coating or impregnating a substrate, to compounded compositions including said polymer latex, to a method for making dip-molded articles and to articles made by using said polymer latex.

Abstract: A curable polymer latex composition obtainable by: (a) subjecting a monomer mixture comprising i. at least one conjugated diene; ii. at least one ethylenically unsaturated nitrile; iii. optionally at least one ethylenically unsaturated acid; iv. optionally at least one further ethylenically unsaturated compound different from any of the compounds (i)-(iii); to free-radical emulsion polymerization in an aqueous reaction medium to form a raw polymer latex; and (b) allowing the obtained raw latex to mature in the presence of at least one thiocarbonyl-functional compound, wherein the at least one thiocarbonyl-functional compound is present in an amount of at least 0.05 wt.-%, based on the total amount of monomers subjected to free-radical emulsion polymerization in step (a), and (c) optionally compounding the matured polymer latex with one or more cross-linking agent. Methods for making such curable polymer latex composition or rubber articles made therefrom, respectively.

Abstract: A polymer latex composition for dip-molding applications includes the reaction product obtained by free-radical emulsion polymerization in aqueous medium of ethylenically unsaturated monomers including; (a) 19.9 to 90 wt.-% of at least one aliphatic conjugated diene; (b) 9.9 to 80 wt.-% of at least one unsaturated nitrile; (c) 0.1 to 10 wt.-% of at least one ethylenically unsaturated acid; (d) 0 to 19 wt.-% of at least one aromatic vinyl compound, and (e) 0 to 20 wt.-% of at least one further ethylenically unsaturated compound different from any of compounds (a) to (d), the weight percentages being based on the total amount of monomers, wherein the emulsion polymerization is conducted in presence of a degraded polysaccharide having a DE of 2 to 90 measured according to ISO 5377 (Dec.

Abstract: A polymer latex composition for dip-molding applications includes the reaction product obtained by free-radical emulsion polymerization in aqueous medium of ethylenically unsaturated monomers including; (a) 19.9 to 90 wt.-% of at least one aliphatic conjugated diene; (b) 9.9 to 80 wt.-% of at least one unsaturated nitrile; (c) 0.1 to 10 wt.-% of at least one ethylenically unsaturated acid; (d) 0 to 19 wt.-% of at least one aromatic vinyl compound, and (e) 0 to 20 wt.