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

Polyolefin nano-composite

Patent 6872791 Issued on March 29, 2005. Estimated Expiration Date: Icon_subject December 22, 2021. 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.

Inventors

Assignee

Application

No. 10451454 filed on 12/22/2001

US Classes:

526/160, Transition metal bonded to carbon atom526/943, POLYMERIZATION WITH METALLOCENE CATALYSTS526/348, From hydrocarbon526/904, MONOMER POLYMERIZED IN PRESENCE OF TRANSITION METAL CONTAINING CATALYST AT LEAST PART OF WHICH IS SUPPORTED ON A POLYMER; E.G., PREPOLYMERIZED CATALYSTS, ETC.526/129Silicon present in inorganic oxygen-containing compound

Examiners

Primary: Choi, Ling-Siu

Attorney, Agent or Firm

Foreign Patent References

  • 0 989 139 EP 03/01/2000
  • 11-236414 JP 08/01/1999
  • 2002-0007574 KR 01/01/2002
  • WO 9947598 WO 09/01/1999
  • WO 0069959 WO 11/01/2000

International Classes

C08F004/42
C08F010/00
C08F004/654
C08K003/34

Abstract

Disclosed herein is a polyolefin nanocomposite prepared by polymerizing an olefin monomer in a catalyst system comprising (1) a supported catalyst consisting of a polymer, a silicate clay mineral, and a transition metal compound, and cocatalyst, an alkyl aluminoxane.

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