Title: Glass fiber sizing composition for the reinforcement of resin matrices and method of using same

Abstract: A glass fiber size is provided which contains a phenolic epoxy resin, the reaction product of the partial ester of a polycarboxylic acid containing one or more unesterified carboxyl groups with a compound containing more than one epoxy group, an amino silane coupling agent, a methacryloxy alkyl trialkoxy silane, and a non-ionic surface active agent. A method of sizing glass fibers and glass fibers sized with the aforementioned composition are also provided.

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Inventors: Hedden, Jerry C. (Shelby, NC, US)

Application Number: 565986
Filing Date: 1975-03-31
Publication_date: 1976-12-14
Assignee: PPG Industries, Inc. (Pittsburgh, PA)
Primary Class(es): 65/448 65/450, 106/238, 523/421, 528/38, 528/112, 528/113
Other Classes:
US Patent Ref:

3437517	Apr, 1969	Eilerman et al.	65/3.
3459585	Aug, 1969	Killmeyer et al.	65/3.
3684467	Aug, 1972	Smucker et al.	65/3.

Other Refs:
Primary Examiner: Lindsay, Jr., Robert L.
Assistant Examiner:
Attorney: Curley; John E.