Polyether polymer or copolymer, monomer therefor, and process for production thereof

USRE33367E · kind E · reissue

Assignee

• OSAKA SODA CO., LTD. · JP

Inventors

• Katsuhito Miura · Amagasaki, JP
• Tetsuya Nakata · Kyoto, JP

Key dates

• Filing date: Jun 9, 1988
• Grant date: Oct 2, 1990
• Expiry date: Jun 9, 2008

Classification

• Technology area (CPC —): General

Abstract

A polyether polymer or copolymer with a pendant group of the formula ##STR1## in its molecule, said polymer or copolymer consisting essentially of (1) 1 to 100 mole % of recurring units represented by the following formula (I) ##STR2## and (2) 0 to 99 mole % of at least one type of recurring units represented by the following formula (II) ##STR3## and having a reduced vicsocisty .eta..sub.red, determined at 45.degree. C. in its 0.1% benzene solution or at 80.degree. C. in its 0.1% monochlorobenzene solution, of at least 0.01; a process for producing thereof and novel epoxyether compound therefor.