Invention Grant
- Patent Title: Polyfluoroether based polymers
- Patent Title (中): 聚氟醚基聚合物
-
Application No.: US13093295Application Date: 2011-04-25
-
Publication No.: US08129567B2Publication Date: 2012-03-06
- Inventor: Sheng Peng , Stephen James Getty , Timothy Edward Hopkins , Ying Wang
- Applicant: Sheng Peng , Stephen James Getty , Timothy Edward Hopkins , Ying Wang
- Applicant Address: US DE Wilmington
- Assignee: E.I. du Pont de Nemours and Company
- Current Assignee: E.I. du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: C08F9/28
- IPC: C08F9/28

Abstract:
A composition which provides surface effects to substrates comprising a polymer containing at least one urea linkage prepared by (i) reacting (1) at least one organic diioscyanate, polyisocyanate, or mixture thereof, and (2) at least one fluorochemical compound of Formula I Rf—O(CF2CF2)r(CH2CH2)q(R1)sXH Formula (I) wherein Rf is a linear or branched C1 to C7 perfluoroalkyl optionally interrupted by one to three oxygen atoms, r is 1 to 3, q is 1 to 3, s is 0 or 1, X is O, S, or NR2 wherein R2 is H, or C1 to C6 alkyl, and R1 is a divalent radical selected from —S(CH2)n—, p is 1 to 50, and R3, R4 and R5 are each independently H or C1 to C6 alkyl; (ii) and then reacting with (3) water, a linking agent, or a mixture thereof.
Public/Granted literature
- US20110200820A1 POLYFLUOROETHER BASED POLYMERS Public/Granted day:2011-08-18
Information query