Production of dipped articles

Details Production of dipped articles Production of dipped articles

B - Operations, Transporting

29

C

18/805

B29C 41/14 (2006.01) C08F 236/04 (2006.01) C08L 13/02 (2006.01)

Patent

CA 1053869

PRODUCTION OF DIPPED ARTICLES Abstract of the Disclosure 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 lati- ces having been prepared by the polymerisation of a monomer mixture of 85 to 50 parts by weight of butadiene and/or iso- prene, 10 to 40 parts by weight of acrylonitrile or methacry- lonitrile, 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.-unsatura- ted carboxylic acid, in aqueous emulsion in the presence of 0.5 to 6.0 % by weight, based on monomer, of an alkylaryl sul- phonate 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 poly- merisation.

209716

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