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Microemulsions and fluoropolymers made using microemulsions

A technology of microemulsions and compounds, applied in the field of microemulsions

Active Publication Date: 2013-10-09
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Suspension polymerization typically does not involve the use of surfactants, but produces significantly larger polymer particles than aqueous emulsion polymerization

Method used

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  • Microemulsions and fluoropolymers made using microemulsions
  • Microemulsions and fluoropolymers made using microemulsions
  • Microemulsions and fluoropolymers made using microemulsions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0253] Embodiment 1: microemulsion, it comprises:

[0254] (a) water;

[0255] (b) at least one ethylenically unsaturated fluoromonomer; and

[0256] (c) at least one oligomeric fluorosulfinic acid compound.

Embodiment 2

[0257] Embodiment 2: The microemulsion according to embodiment 1, wherein the oligomeric fluorosulfinate compound is a highly fluorinated sulfinate oligomer.

Embodiment 3

[0258] Embodiment 3: The microemulsion according to embodiment 2, wherein the highly fluorinated sulfinate oligomer is selected from at least one highly fluorinated sulfinate oligomer according to the following formula (IV):

[0259]

[0260] where X 1 、X 2 and x 3 independently selected from F, Cl and CF 3 ; R is independently selected from H, I, B, linear or branched chain alkyl and linear or branched chain fluoroalkyl, optionally containing heteroatoms; R1 is a linear or branched perfluorinated linking group group, the perfluorinated linking group may be saturated or unsaturated, substituted or unsubstituted, and optionally contains catenary heteroatoms; M is a cation; and m is at least 2.

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Abstract

There are provided microemulsions derived from compositions containing oligomeric fluorosulfinic compounds and / or ethylenically unsaturated, polymerizable monomeric fluorosulfinic compounds and to their uses in (co)polymerization processes in aqueous emulsion of fluorinated monomers.

Description

technical field [0001] The present invention relates to microemulsions derived from compositions comprising oligomeric fluorosulfinic compounds and / or ethylenically unsaturated polymerizable monomeric fluorosulfinic compounds, and these microemulsions in the presence of fluorinated monomers Applications in the (co)polymerization process of aqueous emulsions. Background technique [0002] Fluoropolymers (i.e., polymers with a fluorinated backbone) have long been known and have been favored due to several desirable properties such as heat resistance, chemical resistance, weather resistance, UV stability, etc. Used in a variety of applications. A variety of fluoropolymers are described, for example, in "Modern Fluoropolymers", edited by John Scheirs, Wiley Science 1997 ("Modern Fluoropolymers", edited by John Scheirs, Wiley Science, 1997). Commonly known or commercially used fluoropolymers include polytetrafluoroethylene (PTFE), copolymers of tetrafluoroethylene (TFE) and hex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F14/18
CPCC08F14/18C08F214/18C08L27/20C08F2/24C08F2/22
Inventor 福士达夫格雷格·D·达尔克丹尼斯·杜谢恩沃纳·M·A·格鲁泰尔特米格尔·A·格拉拉里·A·拉斯特彼得·J·斯科特裘再明
Owner 3M INNOVATIVE PROPERTIES CO
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