Title:
POLY(ALKYLENE OXIDE) AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/112776
Kind Code:
A1
Abstract:
Provided is a poly(alkylene oxide) which is useful as a material of an isocyanate group-terminated prepolymer and a polyurethane resin, causes little volatilization of harmful acetaldehyde and propionaldehyde, and is stable even if stored for a long time. This poly(alkylene oxide) contains 10-50 ppm of an iminophosphazenium cation represented by general formula (1) and contains a total of 10-70 ppm of acetaldehyde and propionaldehyde. [Compound 1] (R1 and R2 each independently denote H or a hydrocarbon group having 1-20 carbon atoms; R1 and R2, multiple R1 moieties or multiple R2 moieties may bond to each other to form a ring structure.)
Inventors:
YAMAMOTO TOSHIHIDE (JP)
INOUE YOSHIAKI (JP)
INOUE YOSHIAKI (JP)
Application Number:
PCT/JP2022/044940
Publication Date:
June 22, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
TOSOH CORP (JP)
International Classes:
C08G65/10
Foreign References:
| JP2017171708A | 2017-09-28 | |||
| JP2012131897A | 2012-07-12 | |||
| JP2016037560A | 2016-03-22 | |||
| JP2016040357A | 2016-03-24 | |||
| JP2016056219A | 2016-04-21 | |||
| JPH1160721A | 1999-03-05 | |||
| JP2004339481A | 2004-12-02 |
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