Patent · US Active

Fluoropolymer compositions and treated substrates

US8231975B2 · kind B2 · utility

0Cited by

19References

7Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Sheng Peng · Hockessin, US
Stephen James Getty · Wilmington, US
Timothy Edward Hopkins · Pieter Appelplein, US
Ying Wang · Wilmington, US

Key dates

Filing date	Sep 19, 2011
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Sep 19, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polymer having at least one urea linkage prepared by: (i) reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, having isocyanate groups, and (b) at least one fluorinated compound selected from the formula (I):Rf(CH2CF2)p(CH2CH2)q(R1)r—XH Formula (I)wherein

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.