Antioxidants and reinforced polymers and oil-in-water emulsions of antioxidants
Patent 4341677 Issued on July 27, 1982. Estimated Expiration Date: 
September 24, 2000. 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.
September 24, 2000. 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 ReferencesInventorAssigneeApplicationNo. 06/190153 filed on 09/24/1980US Classes:523/421, Organic nitrogen compound contains element other than C, H, O, or N428/378, Coating on discrete and individual rods, strands or filaments524/110, Six-membered chalcogen ring524/258, Two or more separate aryl ring systems524/291, OH group other than as part of a COOH group, e.g., salicylic acid, etc.524/310, OH group other than as part of a COOH group, e.g., castor oil, etc.524/375, Phenoxy group524/591, Water DNRM524/598, Water DNRM65/447, Synthetic resin, natural resin, or asphalt coating65/450Thermosetting or themoplastic resinExaminersPrimary: Pertilla, Theodore E.Attorney, Agent or FirmInternational ClassesC03C 25/26 (20060101)C03C 25/24 (20060101) C08J 5/04 (20060101) C08J 5/08 (20060101) AbstractOil-in-water emulsions of antioxidants having low volatility and good thermal resistance are provided for treating fibrous reinforcements such as glass fibers. The emulsions are comprised of the antioxidant in an amount of about 5 to about 60 weight percent of the emulsion along with an organic solvent that has a boiling point above the temperature of use or of preparation and is compatible with the antioxidant in an amount in a ratio of about 0.5 to about 1.5 with the antioxidant and one or more emulsifiers selected from the group consisting of anionic, and nonionic having a combined HLB (hydrophilic/lipophilic balance) in the range of about 12 to about 27. The emulsion can also contain a resin carrier such as an epoxy resin and/or a stabilizing agent such as polyalkylene polyol.An aqueous treating solution for treating fibrous reinforcement such as a sizing composition for treating glass fibers to increase the protection of fiber reinforced polymeric materials against chemical degradation due to the chemistry on the treated glass fibers or reaction and/or decomposition products of said chemistry is comprised of the oil-in-water emulsion, film-former, and coupling agent and may contain other conventional agents used in sizing composition.Other References
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