| abstract |
The present invention relates to sizing treated glass fibers used to reinforce laminating resins used in the manufacture of glass laminates. The sizing agents with which the glass fibers have been treated contain a polymer that is made from at least one monomer selected from that of acrylic acid, methacrylic acid, C¶1¶-C¶18¶-alkyl esters of acrylic acid, C¶1¶- C¶18¶-alkyl esters of methacrylic acid, glycidyl acrylate, glycidyl methacrylate, C¶1¶-C¶4¶-hydroxyalkyl esters of acrylic acid, C¶1¶-C¶4¶-hydroxyalkyl esters of methacrylic acid, (meth) acrylamide and their N-substituted Derivatives, vinyl compounds, in particular vinyl esters of saturated aliphatic monocarboxylic acids with up to 10 carbon atoms, vinyl ethers, N-vinyl lactams, halogenated vinyl compounds, alkyl vinyl ketones, vinyl pyrrole, (meth) allyl esters of saturated aliphatic monocarboxylic acids, olelfins, diesters of itaconic, maleic and / or fumaric acid Styrene and at least one ingredient selected from the group consisting of a silane coupling agent, a lubricant suitable for use in the sizing agent, and / or acetic acid existing group is selected. The polymer has a weight average molecular weight of no more than about 55,000 (as determined by gel permeation chromatography). The glass fibers treated with the sizing agent have improved wettability by the laminating resin. ... |