Patents Assigned to Ineos Technologies (Vinyls) Limited
  • Polymerisation of vinyl chloride monomer
    Patent number: 7745556
    Abstract: A copolymer of (i) an alkyl acrylate or alkyl methacrylate and (ii) a hydroxyalkyl acrylate or hydroxyalkyl methacrylate is used as a secondary protective colloid in the suspension polymerization of vinyl chloride monomer. The alkyl group of the alkyl acrylate or alkyl methacrylate is preferably a 2-ethylhexyl group. The hydroxyalkyl group of the hydroxyalkyl acrylate or hydroxyalkyl methacrylate is preferably a hydroxyethyl group.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 29, 2010
    Assignee: Ineos Technologies (Vinyls) Limited
    Inventors: Paul A Ferguson, Jill Galligan, Raymond J Harvey