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Process and intermediates for fluorinated vinyl ether monomer

Assignee: EIDP Inc
•
Filing: 1983-12-27
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Granted: 1987-06-23
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Expires: 2003-12-27
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Abstract

Abstract Vinyl ether monomers of the formula ##STR1## wherein n is 0 or 1 and R is CH 3 or C 2 H 5 , precursors thereto, and copolymers with, e.g., tetrafluoroethylene, are provided. The copolymers are useful as electrical insulation and as the sheath portion of optical fibers, and can be converted to known ion exchange polymers having carboxylic groups which are useful, e.g., in the form of permionic membrane for separating the compartments of a chloralkali cell. The vinyl ether monomers can also be converted to vinyl ether monomers which contain carboxylate functional groups, which in turn can be copolymerized to useful copolymers.

Inventors

  • 👤 Paul R. Resnick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 10:23
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/17; C07C43/04; C07C43/12; C07C43/126; C07C59/00; C07C59/125; C07C59/135; C07C69/00; C07C69/66; C07C69/73; C07C69/734; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/26

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 25 words
A chemical compound having the structural formula ##STR32## wherein n is 0 or 1 and R is CH 3 or C 2 H 5 .
Claim 2
Dependent Claim 25 words
A chemical compound having the structural formula ##STR32## wherein n is 0 or 1 and R is CH 3 or C 2 H 5 .
Claim 3
Dependent Claim 15 words
The compound of claim 1 wherein n is 0 and R is CH 3 .
Claim 4
Dependent Claim 15 words
The compound of claim 1 wherein n is 1 and R is CH 3 .

References Cited (Backward Citations)

US4065366A Cited
US4065366B1 Cited
US4275226A Cited
US4329434A Cited
US4348310A Cited
EP0041738A1 Cited
EP0041737B1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-06-22 1990-12-22 1991-06-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-06-22 1994-12-22 1995-06-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-06-22 1998-12-22 1999-06-23 $7700.00 Window Closed / Lapsed

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