Hydroxy amino polymer and a manufacturing method for the same

Japanese Patent JP6227549

B2

The present invention relates to a process for the preparation of a hydroxy-amino polymer, comprising the steps: a) reacting an H-functional starter compound carrying at least one Zerewitinoff-active H atom with an unsaturated cyclic carboxylic acid anhydride and at least one alkylene oxide compound to give a hydroxyl-group-carrying prepolymer, b) adding a primary amine and/or ammonia to the double bonds of the hydroxyl-group-carrying prepolymer obtained according to step a) to give the hydroxy-amino polymer, wherein the reaction of the H-functional starter compound with the unsaturated cyclic carboxylic acid anhydride and/or the addition of the alkylene oxide compound is carried out using a double metal cyanide catalyst (DMC catalyst). The invention relates additionally to a hydroxy-amino polymer obtainable by the above-mentioned process, wherein the ratio of the amount of alkylene oxide compound to the amount of carboxylic acid anhydride is at least 1.1:1, and further to the use of this hydroxy-amino polymer in the preparation of a polyurethane urea polymer.

WO/2022/078766	NOVEL (PER)FLUOROPOLYETHER POLYMERS AND USE THEREOF
JPH08337649	ADDITION POLYMER AND COPOLYMER OF OLIGOMER HAVING DICARBOXY TERMINALS AND BISIMIDAZOLINE, AND PREPARATION THEREOF
JP2010533764	Method for producing high-purity methoxypolyethylene glycol ethylmaleimide

Klaus Lorenz
Jörg Hoffman
Hartmut Neftsgar

JP2014547895A

November 08, 2017

December 17, 2012

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Bayer Intellectual Property GmbH

C08G65/333; C08G18/42; C08G18/48; C08G63/676; C08G63/91

JP7508302A

US4874837

Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Hirohito Katsunuma
Hiroshi Sorimachi
Suzuki Keiyasu

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