Flexible, chemically treated bundles of fibers and process
Patent 4762750 Issued on August 9, 1988. Estimated Expiration Date: 
February 26, 2007. 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.
February 26, 2007. 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 ReferencesInventorsAssigneeApplicationNo. 07/021534 filed on 02/26/1987US Classes:428/378, Coating on discrete and individual rods, strands or filaments428/375, Coated or with bond, impregnation or core428/391, Silane, silicone or siloxane in coating428/392, Artificial fiber or filament428/394, Synthetic resin or polymer428/395, Polyamide, polyimide or polyester65/344, With deputer, draw ring, or draw shield65/447, Synthetic resin, natural resin, or asphalt coating65/450Thermosetting or themoplastic resinExaminersPrimary: Gibson, SharonAttorney, Agent or FirmInternational ClassesC03C 25/26 (20060101)C03C 25/24 (20060101) AbstractMore flexible bundles of high modulus, low elongation fibers are produced by the impregnated bundles and process of the present invention. The flexible bundle of fibers comprise a plurality of fibers having a first treatment of a moisture-reduced residue of an aqueous chemical composition and a second treatment of a moisture-reduced, partially cured impregnant of an aqueous chemical coating composition. The individual fibers in the impregnated bundle were first treated with an aqueous sizing composition having at least a fiber protectorant and optionally an antistatic agent and/or coupling agent. The impregnating composition has one or more water soluble, dispersible or emulsifiable elastomeric polymers that are essentially free of hydrocarbon diene and chlorine functionalities, and one or more crosslinking materials that are water soluble, emulsifiable or dispersible, and water. Optionally, there may be present one or more emulsifiable or dispersible lubricants, plasticizers, polymeric materials, waxes, diene-containing latices and flame retardants. The flexible impregnated bundles of glass fibers are useful in producing woven and nonwoven fabrics where the fabrics can be coated with polymeric films.Other References
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