Novel polymeric N-heterocyclic compounds
Patent 4210612 Issued on July 1, 1980. Estimated Expiration Date: 
July 13, 1998. 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.
July 13, 1998. 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 3004957 3486932 3590045 3645988 3705166 1,3,8-Triazaspiro[4.5]decane-2,4-dione polymer stabilizers Patent #: 4097587 InventorAssigneeApplicationNo. 05/924417 filed on 07/13/1978US Classes:525/204, Heterocyclic reactant contains at least two hetero atoms in the same ring and at least one of which is nitrogen526/258, From monomer containing nitrogen atom as part of a heterocyclic ring526/262, Imide monomer526/263, Nitrogen of ring is bonded directly or indirectly to extracyclic ethylenic moiety526/2656-membered ring contains a single nitrogen atomExaminersPrimary: Wong, Harry Jr.Attorney, Agent or FirmInternational ClassesC07D 211/00 (20060101)C07D 211/46 (20060101) C07D 211/58 (20060101) C08L 101/00 (20060101) C08F 20/00 (20060101) C08F 20/60 (20060101) C08F 20/34 (20060101) C07D 471/00 (20060101) C07D 471/10 (20060101) Foreign Application Priority Data1977-07-19 CHAbstractHomopolymeric acrylates and methacrylates which carry N-heterocyclic rings in a side position and their copolymers with compounds containing at least one polymerizable double bond are suitable as additives for plastics.Other References
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