Patent Number: 6,169,139

Title: Fluoroelastomer latex

Abstract: A fluoroelastomer latex is produced that is capable of forming films having excellent water resistance. In a first step, polymerization of fluorinated monomers is carried out in the presence of fluorinated surfactants at a pH of 3-8. The pH of the resultant fluoroelastomer emulsion composition is then adjusted to 5-9 and the emulsion is concentrated to yield a solids-rich latex.

Inventors: van Cleeff; Albertus (Wilmington, DE)

Assignee: DuPont Dow Elastomers LLC

International Classification: C08F 14/26 (20060101); C08F 14/00 (20060101); C08F 6/20 (20060101); C08F 14/22 (20060101); C08F 6/00 (20060101); C08L 027/12 ()

Expiration Date: 01/02/2018