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EP0073069A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of polymerizing vinyl ethers

Assignee: Dow Chemical Co
•
Filing: 1981-06-10
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Granted: —
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Expires: 2001-06-10
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Abstract

Abstract A method of polymerizing at least two compounds, wherein at least one compound is selected from a first group of compounds represented by the general formula: where a = is O or an integer greater than O; b = is O or an integer greater than O; R f and R f are independently selected from the group consisting of F, CI, perfluoroalkyl radicals fluorochlor- alkyl radicals; Y = Cl or Br; and at least one other compound is selected from a second group of compounds consisting of: tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichlorethylene, 1,1-difluoro-2-chlorohexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinyl chloride, trifluoronitrosomethane, perfluoronitro-soethane and alkyl vinyl ether, whereby at least one compound from the first group reacts with at least one compound from the second group in the presence of an initiator for a sufficient time and a sufficient temperature to polymerize said compounds.

Inventors

  • 👤 Bobby Ray Ezzell
  • 👤 William Paul Carl
  • 👤 William August Mod

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 23:40
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/18; C07C41/24; C07C49/00; C07C49/04; C07C49/175; C07C51/00; C07C51/04; C07C51/58; C07C59/00; C07C59/125; C07C59/135; C08; C08F; C08F216/00; C08F216/12; C08F216/14; C08F216/1408

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 143 words
A method of polymerizing at least two compounds, wherein at least one compound is selected from a first group of compounds represented by the general formula: where a = is 0 or an integer greater than 0; b = is 0 or an integer greater than 0; Ri and R f are independently selected from the group consisting of F, Cl, perfluoroalkyl radicals fluorochloroalkyl radicals; Y = Cl, or Br; and at least one other compound is selected from a second group of compounds consisting of: tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chlorohexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinyl chloride, trifluoronitrosomethane, perfluoronitrosoethane and alkyl vinyl ether; said method comprising reacting at least one compound from the first group with at least one compound from the second group in the presence of an initiator for a sufficient time and a sufficient temperature to polymerize said compounds.
Claim 2
Independent Claim 143 words
A method of polymerizing at least two compounds, wherein at least one compound is selected from a first group of compounds represented by the general formula: where a = is 0 or an integer greater than 0; b = is 0 or an integer greater than 0; Ri and R f are independently selected from the group consisting of F, Cl, perfluoroalkyl radicals fluorochloroalkyl radicals; Y = Cl, or Br; and at least one other compound is selected from a second group of compounds consisting of: tetrafluoroethylene, trifluoromonochloroethylene, trifluoroethylene, vinylidene fluoride, 1,1-difluoro-2,2-dichloroethylene, 1,1-difluoro-2-chlorohexafluoropropylene, 1,1,1,3,3-pentafluoropropylene, octafluoroisobutylene ethylene, vinyl chloride, trifluoronitrosomethane, perfluoronitrosoethane and alkyl vinyl ether; said method comprising reacting at least one compound from the first group with at least one compound from the second group in the presence of an initiator for a sufficient time and a sufficient temperature to polymerize said compounds.
Claim 3
Dependent Claim 19 words
The method of Claim 1 wherein a=0-3; b= 0 - 3 and R f = R f = F.

References Cited (Backward Citations)

GB976136A Cited
DE1645132A1 Cited
EP0041738A1 Cited

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