US2013345443A1PendingUtilityA1

Fluorosulfonyl group-containing monomer and its polymer, and sulfonic acid group-containing polymer

Assignee: ASAHI GLASS CO LTDPriority: Aug 9, 2007Filed: Aug 30, 2013Published: Dec 26, 2013

Est. expiryAug 9, 2027(~1 yrs left)· nominal 20-yr term from priority

Inventors:Atsushi Watakabe Hiromasa Yamamoto Masao Iwaya Susumu Saito

C07D 317/42C08G 75/23

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Claims

Abstract

A fluorosulfonyl group-containing monomer having a high polymerization reactivity and plural fluorosulfonyl groups, a fluorosulfonyl group-containing polymer and a sulfonic acid group-containing polymer, obtained by using the monomer.

Claims

exact text as granted — not AI-modified

What is claimed is: 
     
         1 . A compound represented by the following formula (3): 
       
         
           
           
               
               
           
         
         wherein each of R f1  and R f2  which are independent of each other, is a C 1-8  perfluoroalkylene group which may have an etheric oxygen atom between carbon atoms. 
       
     
     
         2 . The compound according to  claim 1 , wherein each of —R f1 —SO 2 F and —R f2 —SO 2 F is a perfluorinated 2-fluorosulfonyl ethoxy group-substituted alkylene group (the alkylene group has 1 to 3 carbon atoms).

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