Owens-corning Fiberglas Corporation

Robert W Wong

Richard M Haines

Martin C Flautt

Homer G Hill

Joseph F Walsh

Elisabeth J Berger

Glass fibers coated with a size composition comprising gamma-aminopropyltriethoxysilane and an alkoxysilane are disclosed. When a glass fiber size composition of this invention is employed on glass fibers incorporated into plastics reinforced by the incorporation of the fibers, the resulting product exhibits improved strength properties.

Size composition for glass fibers

Dilute aqueous sizing compositions for glass fibers containing emulsified epoxy resin, lubricant and, as the sole organosilane coupling agent, 3-chloropropyltrimethoxy silane give superior properties to glass fibers having as a size coating the in situ dried residue thereof for use as reinforcing elements in polymeric or resinous articles.

Aqueous compositions for sizing glass fibers containing emulsified epoxy

Aqueous sizing compositions for glass fibers having emulsified epoxy resin as film-former, emulsified mineral oil as lubricant, glycidoxyalkyl and/or haloalkylsilanes as coupling agents, amide anti-static agent and polyvinylpyrrolidone give superior properties, especially where the sized glass fibers are used as reinforcement in epoxy resin articles, when reduced proportions of predominantly anionic surfactants are used to co-emulsify the epoxy resin film-former and the mineral oil.

Aqueous epoxy sizing composition for glass fibers and fibers sized

An aqueous emulsion of epoxy resin or epoxy resin solution and mineral oil can be formed using a low level of predominantly non-ionic surfactant and an anti-static agent.

Aqueous co-emulsions of epoxy resin and mineral oil

Polytetrafluoroethylene fluorocarbon resin dispersion-containing coatings for glass fibers are disclosed. In one embodiment, the polytetrafluoroethylene fluorocarbon resin dispersion-containing composition also comprises a lubricant and is suitable for use as a padding composition for glass fiber fabric. In another embodiment, the polytetrafluoroethylene fluorocarbon resin dispersion-containing composition also comprises a film-forming polymer, a thixotropic gelling agent, a silane coupling agent and, optionally, a lubricant and is suitable for use as a size composition for glass fibers.

Polytetrafluoroethylene fluorocarbon resin dispersion-containing coating

This invention comprises an aqueous size composition comprising polyvinylacetate and 3-chloropropyl trimethoxysilane. Additionally, the size will comprise a film former and a neutralizer.

Non-aging epoxy compatible size

A glass fiber size composition comprising a film-forming polymer, a thixotropic gelling agent, a heat-curable polyurethane latex and an organo silane coupling agent is disclosed. When a coloring agent is incorporated into the glass fiber size composition, the resulting sized glass fibers exhibit excellent color intensity.

Glass fiber size composition

An improved method of coating fibers and particularly glass fibers with a solution of materials containing a reversible shear thinning gel producing agent which causes the coating to be transformed into a shear thinning gel under predetermined conditions. The predetermined conditions may be brought about after the coated fibers are brought together into touching engagement in a package, or may be caused to occur before the coated fibers are brought together in touching engagement in the package. The fibers can be removed from the package and still retain a coating on the fibers, since the shearing action of the fibers through the gel converts the gel to a liquid which adheres to the fibers as they are being pulled through the gel. The predetermined conditions may involve a change in temperature, or a change in concentration of solids. The change in temperature will usually be a cooling of the coating materials to a temperature below the gelation point, and the change in concentration will usually be an evaporation of solvent to form at least a skin of gel on the surface of the coating materials. The change in temperature technique can be used to increase the amount of solids that is applied to the fibers. The uncoated fibers, however, are preferably drawn through the gel to subject the reversible shear thinning gel to shear which causes the materials to flow around and adhere to the fibers, following which the coating reverts to a gel.

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Granville, OH, United States of America

Robert W Wong