| abstract |
A method for the production of dipped articles of rubber latices, wherein rubber latices are used which have an average rubber-particle diameter of no more than 200 nm and contain a rubber having a Defo value of less than 2000, the rubber latices having been prepared by the polymerization of a monomer mixture of 85 to 50 parts by weight of butadiene and/or isoprene, 10 to 40 parts by weight of acrylonitrile or methacrylonitrile, 0 to 40 parts by weight of styrene, 0 to 10 parts by weight of acrylamide, methacrylamide and/or their methylol derivatives and 0.1 to 10 parts by weight of an alpha - beta -unsaturated carboxylic acid, in aqueous emulsion in the presence of 0.5 to 6.0% by weight, based on monomer, of an alkylaryl sulphonate and 0 to 5% by weight, based on monomer, of one or more other surface-active substances as emulsifier, at a pH-value below 7, and wherein the pH of the latex is adjusted to a value above 8 with an alkali hydroxide on completion of polymerization and the dipped article of rubber produced by said method. |