Glass fibre sizing compositions based on modified epoxy resins

  • Inventors:
  • Assignees: Ppg Industries Inc
  • Publication Date: January 15, 1969
  • Publication Number: GB-1140004-A


1,140,004. Laminates. PPG INDUSTRIES Inc. 17 March, 1967 [21 March, 1966], No. 12609/67. Addition to 1,061,636. Heading B5N. [Also in Divisions C3 and D1] The laminates described are substantially the same as those of the parent Specification 1,061,636, e.g. of woven impregnated glass cloth, except that the binder used in the glass-fibre sizing solution is formed by reaction of a compound containing more than one epoxy group per molecule with a partial ester of a polycarboxylic acid which contains more than one free carboxyl group.




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