Antioxidants and reinforced polymers and oil-in-water emulsions of antioxidants
Patent 4483948 Issued on November 20, 1984. Estimated Expiration Date: 
April 5, 2002. 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.
April 5, 2002. 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. 06/365712 filed on 04/05/1982US Classes:523/205, Product having a solid synthetic polymer or solid polymer-forming system523/206, Product having two or more solid synthetic polymers, or a solid polymer and a solid polymer-forming system523/217, Glass524/227, Two or more N-C=O groups524/255, Two or more separate aryl ring systems524/291OH group other than as part of a COOH group, e.g., salicylic acid, etc.ExaminersPrimary: Pertilla, Theodore E.Attorney, Agent or FirmInternational ClassesC03C 25/26 (20060101)C03C 25/24 (20060101) C08J 5/08 (20060101) C08J 5/04 (20060101) AbstractUnder thermal aging conditions of reinforced polymeric materials, some reinforcements are not as effective as others in providing longevity for the fiber reinforced polymeric materials. A method is provided for incorporating an additional amount of antioxidant into the polymeric materials before the reinforcement is added to the polymeric materials or into an aqueous treating solution for the fibrous reinforcement. The antioxidant is of low volatility and good thermal resistance, and when added to the polymer directly is used in an amount greater than three parts per hundred parts of the polymer (PHR). When the antioxidant is added to the aqueous treating solution for treating the fibrous reinforcements, the antioxidant is in the form of an oil-in-water emulsion.Other References
| |
