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US3901860A Expired / Lapsed US ⏱️ 0.0 years remaining

Functionally substituted terpolymers and tetrapolymers of ' -olefins and process for manufacturing functional substituted copolymers

Assignee: EIDP Inc
•
Filing: 1974-09-27
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Granted: 1975-08-26
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Expires: 1994-09-27
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Abstract

Abstract Addition terpolymers of ethylene with an Alpha -olefin and an unsaturated, functionally substituted monomer. Addition tetrapolymers of ethylene with an Alpha -olefin having 3-18 carbon atoms, a nonconjugated diene having only one polymerizable double bond, and an unsaturated, functionally substituted monomer. A process for preparing copolymers of ethylene with an unsaturated functionally substituted monomer, and optionally also with at least one of the following: an Alpha -olefin having 3-18 carbon atoms and a nonconjugated diene having only one polymerizable double bond; wherein the monomers are contacted in the presence of a vanadium compound soluble in hydrocarbons and chlorinated hydrocarbons, in which vanadium is in the oxidation state of at least +3, an organoaluminum compound, and an organic compound having at least one carbon atom substituted by three halogen atoms which can be chlorine or bromine.

Inventors

  • 👤 John Wilfred Collette
  • 👤 Rolland Shih-Yuan Ro
  • 👤 Fred Max Sonnenberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 04:50
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C08F210/18

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 20 words
AN ELESTOMERIC ADDITION COPOLYMER CONSISTING ESSENTIALLY OF (1) ETHYLENE, (2) PROPYLENE, AND (3) AN UNSATURATED FUNCTIONAL MONOMER OF THE FORMULA
Claim 2
Dependent Claim 20 words
AN ELESTOMERIC ADDITION COPOLYMER CONSISTING ESSENTIALLY OF (1) ETHYLENE, (2) PROPYLENE, AND (3) AN UNSATURATED FUNCTIONAL MONOMER OF THE FORMULA
Claim 3
Dependent Claim 14 words
An addition copolymer of claim 1 wherein the unsaturated functional monomer is 5-norbornene-2-acetic acid.

References Cited (Backward Citations)

US3481908A Cited
US3492277A Cited
US3551524A Cited
US3796687A Cited
US3687909A Cited
US3723399A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-25 1979-02-24 1979-08-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-25 1983-02-24 1983-08-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-25 1987-02-24 1987-08-26 $7700.00 Window Closed / Lapsed

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