Cation exchange resins incorporating antioxidants
Patent 4973607 Issued on November 27, 1990. Estimated Expiration Date: 
September 23, 2008. 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 23, 2008. 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 3342755 Azo free radical initiators containing ultraviolet light stabilizing groups Process for preparing oxidatively-stable polymers Patent #: 4354007 InventorsApplicationNo. 248529 filed on 09/23/1988US Classes:521/28, Previously formed solid ion-exchange polymer admixed with nonreactive material or ion-exchange polymer521/31, Solid polymer derived from ethylenically unsaturated reactant only521/32, Treated with nitrogen-containing material521/33Treated with sulfur-containing materialExaminersPrimary: Kulkosky, Peter F.Foreign Patent References
International ClassB01J 039/08AbstractCation exchange resins with improved stability prepared by treating the resins with an antioxidant are disclosed.Other References
| |
