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US Patent 5081192 - Novel polymer and its preparation and use
US Patent Issued on January 14, 1992
Estimated Patent Expiration Date:
May 19, 2009Estimated 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.
Estimated Patent Expiration Date:
May 19, 2009Estimated 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.AbstractA polymer of the formula:PC--[CH2 CYI--(CH2)n --SiRx X3-x]m (I)wherein PC is a polymer chain, X is a monovalent functional group, Y is a hydrogen atom or a lower alkyl group, R is a hydrogen atom or an inactive monovalent organic group, X is an integer of 0 to 3, m is a positive integer which is not larger than the number of ends of the polymer chain PC, and n is 0, 1 or 2, having a molecular weight of 5×102 to 5×106, which is relatively stable and easily handled. | InventorAssigneeApplicationNo. 354287 filed on 05/19/1989US Classes:525/288, Ethylenic reactant contains atoms other than C, H, O, N, S, or Cl106/287.13, C bonded directly to Si atom106/287.27, Halogen containing525/276, Ethylenic reactant contains a fluorine atom526/242, From fluorine containing monomer526/279From monomer containing a silicon atomField of Search525/276, Ethylenic reactant contains a fluorine atom525/288Ethylenic reactant contains atoms other than C, H, O, N, S, or ClExaminersPrimary: Bleutge, John C.Assistant: Jagannathan, Vasu S. Attorney, Agent or FirmUS Patent References3929850, 4020043, Vulcanizable alkoxysilyl capped polymer compositionIssued on: 04/26/1977 Inventor: Siefken4191714, Curable polyester oligomer and a process for producing same Issued on: 03/04/1980 Inventor: Yonezawa , et al.4861836Novel, iodine-containing compound, preparation thereof and block copolymer comprising the same Issued on: 08/29/1989 Inventor: Tatemoto , et al. Foreign Patent References
International ClassesC08F 259/08C08F 030/08 C09K 003/10 Foreign Application Priority Data1988-05-21 JP |
