Flexible, chemically treated bundles of fibers, woven and nonwoven fabrics and coated bundles and fabrics thereof
Patent 4762751 Issued on August 9, 1988. Estimated Expiration Date: 
May 22, 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.
May 22, 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 ReferencesInventorsAssigneeApplicationNo. 06/866017 filed on 05/22/1986US 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 polyester442/60, Fabric composed of a fiber or strand which is of specific structural definition65/450, Thermosetting or themoplastic resin65/451Nitrogen or phenol containingExaminersPrimary: Gibson, SharonAttorney, Agent or FirmInternational ClassesB32B 27/12 (20060101)C03C 25/26 (20060101) C03C 25/24 (20060101) AbstractMore flexible bundles of high modulus, low elongation fibers are provided by the impregnated bundles 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 elastomeric curable polyurethanes that are water soluble, emulsifiable or dispersible 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, and flame retardants. The flexible impregnated bundles of glass fibers are useful in reinforcing polymers and fiber optic and drop-wire cables and in producing woven and nonwoven fabrics where the fabrics can be coated with polymeric films.Other References
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