Improvements in or relating to high molecular weight polymeric materials

  • Inventors:
  • Assignees: Standard Oil Dev Co
  • Publication Date: March 12, 1948
  • Publication Number: GB-599437-A

Abstract

Olefine terpolymers are obtained by polymerization of a mixture of 29-70 per cent by volume of a C3-55 alkene, 20-70 per cent of styrene and 1-10 per cent of a C4-C10 polyolefine at a temperature not exceeding -10 DEG C. in the presence of a Friedel-Crafts catalyst dissolved in a methyl or ethyl halide. Isobutylene is the preferred alkene, others specified are propylene, isopentene and n-pentene. Polyolefines specified are isoprene, butadiene, dimethyl p butadienes, piperylene, cyclopentadiene, methyl ethyl butadiene, methyl pentadiene, myrcene, hexatriene and alloocimene. Coating compositions are prepared by dissolving a minor proportion of the terpolymer in a volatile organic solvent, e.g. benzene, toluene, or, if the styrene content of the terpolymer exceeds 40 per cent, in a drying fatty oil, e.g. linseed oil, or the terpolymer may be applied molten. It may be added to paraffin wax, petrolatum, natural waxes, asphalts, tars, mineral oils and as plasticiser to rubber and other resins, e.g. isobutylene-isoprene copolymers (see Group V). Other uses include the making of thin films and adhesives. It may be vulcanized and/or compounded with fillers, pigments, oil-soluble dyes, antioxidants and plasticisers, e.g. clay, chalk, silica, carbon black, zinc oxide, iron oxide, titanium dioxide, di-o-tert.-butyl derivative of p-cresol, zinc stearate, paraffin wax and petroleum sulphonates. Specifications 513,521 and 599,484 are referred to.ALSO:Olefine terpolymers are obtained by low-temperature polymerisation in presence of a Friedel-Crafts catalyst of a C3-C3 alkene, styrene and a C4-C10 polyolefine (see Group IV). Isobutylene, propylene, isopentene and n-pentene are specified isoolefines. Polyolefines listed are isoprene, butadiene, dimethyl butadienes, piperylene, cyclopentadiene, methyl ethyl butadiene, methyl pentadiene, myrcene, hexatriene and alloocimene. Coating compositions comprise a minor proportion of terpolymer in a volatile organic solvent, e.g., benzene, toluene, or, if the styrene content of the terpolymer exceeds 40 per cent., in a drying fatty oil, e.g., linseed, and the terpolymer may be applied molten. It may be used as a plasticiser for natural and synthetic rubbers, e.g., isobutylene-isoprene copolymers. It may be added to increase viscosity to mineral oils and blended with paraffin wax, petrolatum, natural waxes, asphalts and tars. The terpolymer may be vulcanised and/or compounded with fillers, pigments, oil-soluble dyes, anti-oxidants and plasticisers, e.g., clay, chalk, silica, carbon black, zinc oxide, iron oxide, titanium dioxide, di-o-tert. butyl. derivative of p-cresol, zinc stearate, paraffin wax and petroleum sulphates. Specifications 513,521, [Group IV], and 599,484, are referred to.

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    EP-0781788-A3March 18, 1998Mitsui Petrochemical Industries, Ltd.Unsaturated copolymer based on olefin and production and use thereof
    US-2631953-AMarch 17, 1953Standard Oil Dev CoBonding isoolefin-diolefin rubber to metal by an isoolefin-styrenediolefin resin and a modified natural rubber tie ply
    US-2676950-AApril 27, 1954Standard Oil Dev CoLow unsaturation curable tripolymer resins from a diolefin, an alkene and styrene orhomologue thereof