Chemically treated glass fibers for reinforcing polymeric materials processes
October 30, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3473950 3923708 Sizing of glass fibers using aqueous dispersions of film-forming copolymer of 90 percent by weight vinyl acetate with quaternary ammonium salt derivative of acrylic acid comonomer Method of forming glass fiber Resinous composition for surface-treating reinforcing fibers and surface-treating process Sizing composition and glass fibers treated with the aid of such composition Sizing composition and sized fibers with increased hardness Polytetrafluoroethylene fluorocarbon resin dispersion-containing coating composition for glass fibers, glass fibers, and glass fiber fabric coated therewith Aqueous co-emulsions of epoxy resin and mineral oil Aqueous compositions for sizing glass fibers containing emulsified epoxy resin and chloropropylsilane InventorsAssigneeApplicationNo. 06/925463 filed on 10/30/1986US Classes:428/391, Silane, silicone or siloxane in coating428/375, Coated or with bond, impregnation or core428/378, Coating on discrete and individual rods, strands or filaments428/392, Artificial fiber or filament65/448, Organic silicon containing (e.g., coupling agent, etc.)65/451Nitrogen or phenol containingExaminersPrimary: Gibson, SharonAttorney, Agent or FirmInternational ClassesC03C 25/26 (20060101)C03C 25/24 (20060101) C08J 5/04 (20060101) C08J 5/08 (20060101) AbstractChemically treated glass fibers having good processability are useful in producing fiber reinforced polymeric matrices, wherein the glass fibers have good wettability and are not detrimental to the weatherability of the fiber reinforced polymeric matrices. The chemically treated fibers have the dried residue of an aqueous chemical treating composition having at least a bisphenol A polyester film forming polymer compatible with and soluble in the matrix polymer, acryloxy-containing or methacryloxy-containing organo coupling agent in an effective coupling agent amount, cationic fiberous lubricant in an effective lubricating amount, with an antistatic agent that is a cationic organic quaternary ammonium salt having alkoxy moieties, and water in an amount to give a total solids for the aqueous chemical treating composition in the range of about 1 to about 30 weight percent. The aqueous chemical treating composition is essentially free of inorganic antistatic agents. In addition, the aqueous chemical treating composition can have one or more strand hardening agents such as melamine formaldehyde resin. The amount of the organic quatenary ammonium antistatic agent generally is in the range of from 0.05 to around 0.4 weight percent of the aqueous chemical treating composition. The chemically treated glass fibers can be produced in any form such as chopped strand or continuous strand for combination with polymeric matrices including both filled and unfilled systems for producing reinforced polymeric matrices such as glass fiber reinforced polymeric panels which can be clear, translucent or pigmented.Other References
| |
