Title:
The water polymerization of the Fluoro monomer using a hydrocarbon surface-active agent
Document Type and Number:
Japanese Patent JP6109073
Kind Code:
B2
Abstract:
A process is provided for the polymerization of fluoromonomer to an dispersion of fluoropolymer particles in an aqueous medium in a polymerization reactor, by (a) providing the aqueous medium in the reactor, (b) adding the fluoromonomer to the reactor, (c) adding initiator to the aqueous medium, the combination of steps (b) and (c) being carried out essentially free of hydrocarbon-containing surfactant and resulting in the kickoff of the polymerization of the fluoromonomer, and (d) metering hydrocarbon-containing surfactant into the aqueous medium after the kickoff of polymerization, e.g. after the concentration of the fluoropolymer in the aqueous medium is at least 0.6 wt%, the metering being at a rate reducing the telogenic activity of said surfactant while maintaining surface activity.
Inventors:
Paul Douglas Brothers
Subash Vishnu Gangal
Dipty dirip casnis
Subash Vishnu Gangal
Dipty dirip casnis
Application Number:
JP2013538851A
Publication Date:
April 05, 2017
Filing Date:
November 09, 2011
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C08F14/18; C08F2/16; C08F16/24
Domestic Patent References:
| JP2010511096A | ||||
| JP2009521586A | ||||
| JP2006111722A |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office