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Method for the preparation of styrenic fluoropolymers

Invented by: Xiaoliang Zheng
Hudson, OH

Dong Zhang
Uniontown, OH

Jiaokai Jing
Uniontown, OH

Ted Calvin Germroth
Kingsport, TN

Frank W. Harris
Boca Raton, FL

Thauming Kuo
Kingsport, TN

Bin Wang
Kingsport, TN

Douglas Stephens McWilliams
Piney Flats, TN Applicant: Name City State Country Type Zheng

Originally Assigned to: Akron Polymer Systems, Inc.
Akron, OH Family ID: 1000000659665
[Now assigned to . . .]

Issued:2014-10-28
Filed:2012-02-14
Application No:13372621
Examined by:Buie-Hatcher; Nicole M

A method for the preparation of a fluoropolymer by means of emulsion polymerization of a reaction mixture in an aqueous medium is disclosed wherein the reaction mixture includes a fluoromonomer having the structure of ##STR00001## wherein R.sup.1, R.sup.2, and R.sup.3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R.sup.1, R.sup.2, and R.sup.3 is a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring; b) an emulsion stabilizer combination comprising: i) an anionic surfactant; and, ii) a cationic surfactant or a non-ionic surfactant; and, c) a free-radical initiator.

[pdf] U.S. Pat. No. 8,871,882

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