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Method and apparatus for interrupting the polymerization of olefins

Assignee: Huels AG
•
Filing: 1971-01-12
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Granted: 1973-01-02
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Expires: 1991-01-12
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Abstract

Abstract AN APPARATUS AND METHOD FOR INTERRUPTING THE POLYMERIZATION OF ETHYLENE, PROPYLENE, OR 1-BUTENE HAVING A POLYMERIZATION CATALYST COMPRISING A MIXTURE OF AN ALUMINUM-ORGANIC COMPOUND WITH A SALT, FRESHLY PRECIPITATED OXIDE OR HYDROXIDE OF METALS OF GROUPS IV-B, V-B OR VI-B OF THE PERIODIC SYSTEM, INCLUDING THORIUM AND URANIUM WHICH COMPRISES ADDING TO A SUSPENSION OF THE OLEFIN AND CATALYST ABOUT 15 TO 100 MOLE PERCENT OF A DEACTIVATOR COMPRISING AN ORGANIC COMPOUND WHICH CONTAINS OXYGEN, AN ORGANIC COMPOUND WHICH CONTAINS OXYGEN AND HYDROGEN, A ORGANIC COMPOUND WHICH CONTAINS HYDROGEN, HYDROGEN HALIDE OR WATER, RELATIVE TO THE ALKYL GROUP AND/OR HYDRIDE GROUP BONDED TO THE ALUMINUM OF THE ALUMINUM-ORGANIC COMPOUND.

Inventors

  • 👤 J Dietrich
  • 👤 O Wolff
  • 👤 H Amrehn
  • 👤 G Beckmann

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 15:52
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/918

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-02 1976-07-03 1977-01-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-02 1980-07-03 1981-01-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-02 1984-07-03 1985-01-02 $7700.00 Window Closed / Lapsed

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