U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Process for synthesizing silylated polyalkenamers

Patent 4396750 Issued on August 2, 1983. Estimated Expiration Date: Icon_subject May 26, 2001. 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

3480584

3781251

3857825

3920714

3920715

3929850

Crosslinked polyacrylamides containing silyl groups
Patent #: 4105648
Issued on: 08/08/1978
Inventor: Gruber ,   et al.

Silicon-containing polybutadiene derivatives and method for the preparation thereof Patent #: 4230815
Issued on: 10/28/1980
Inventor: Itoh ,   et al.

Inventors

Application

No. 06/266878 filed on 05/26/1981

US Classes:

526/279, From monomer containing a silicon atom525/326.5, Polymer derived from silicon monomer525/343, Chemical treating agent contains a sulfur atom526/166, Group IVA (Ge, Sn, Pb) or Group VA (As, Sb, Bi) metal is bonded to hydrogen or carbon atom526/172Transition metal compound has at least one atom of P, S, N or O therein

Examiners

Primary: Henderson, C. A.

Attorney, Agent or Firm

International Classes

C08G 61/00 (20060101)
C08G 61/08 (20060101)

Abstract

A process for polymerizing cycloalkenes into polyalkenamers is described wherein trisubstituted silyl groups are attached to the cycloalkenes. The silyl groups thus attached do not act as a poison to the polymerization process. Trimethylsilyl group can be substituted by other desired functional groups after the polymerization.

Other References

  • Katz, T. J., Lee, S. J., Shippey, M. A., Preparation of Polym. Using Metaarbenes, J. of Molecular Catalysis, vol. 8, 219-226, (May 27, 1980)
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