Back to results
US 2014/0364571 A1Published application
Process for manufacturing fluoroelastomer compositions containing fluoroplastic fibrils
AssigneeE. I. Du Pont de Nemours and Company
InventorsCHRISTOPHER J. BISH, KOSTANTINOS KOURTAKIS
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a process for the manufacture of a fluoroelastomer composition containing fluoropolymer fibrils. The process comprises applying shear to a fluoroelastomer gum in a mixer while adding a liquid dispersion of fibrillatable fluoropolymer.
Claims10
A process for manufacture of a fluoroelastomer composition containing fluoroplastic fibrils, said process comprising:
- A) applying shear to a fluoroelastomer gum in a mixer;
- and
- B) adding a liquid dispersion of fibrillatable fluoroplastic particles to said fluoroelastomer gum while applying shear in said mixer, thereby forming a fluoroelastomer composition containing fluoroplastic fibrils dispersed therein.
A cured fluoroelastomer article comprising:
- A) a fluoroelastomer;
- and
- B) 0.01 to 20 parts by weight, per hundred parts by weight of fluoroelastomer, of fluoroplastic fibrils having a diameter less than 100 nm, wherein said composition is free from fluoroplastic aggregates having a diameter greater than 500 nm.
Dependencies are inferred from the claim text.