Title:
PRODUCTION METHOD FOR POLYETHER DIOL, POLYETHER DIOL, PRODUCTION METHOD FOR URETHANE PREPOLYMER, PRODUCTION METHOD FOR POLYURETHANE RESIN
Document Type and Number:
WIPO Patent Application WO/2023/210364
Kind Code:
A1
Abstract:
The present invention provides: a polyether diol that makes it possible to obtain a polyurethane resin that has excellent water resistance and oleic acid resistance; a production method for the polyether diol; a production method for a urethane prepolymer that makes it possible to obtain a polyurethane resin that has excellent water resistance and oleic acid resistance; and a production method for a polyurethane resin that has excellent water resistance and oleic acid resistance. This production method for a polyether diol involves addition polymerization of a cyclic ether onto a polytetramethylene ether glycol derived from biomass in the presence of a double metal cyanide complex catalyst that has an organic ligand to obtain a polyether diol that has a biomass% of 10%–80%. This polyether diol has a biomass% of 10%–80% and includes a polyoxyalkylene chain and a polytetramethylene ether glycol chain that has a plurality of units represented by formula u1. Formula u1: -(CH2CH2CH2CH2O)-.
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Inventors:
FUJISAKI SHOGO (JP)
Application Number:
PCT/JP2023/014817
Publication Date:
November 02, 2023
Filing Date:
April 12, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C08G65/04; C08G18/10; C08G18/48; C08G65/12
Domestic Patent References:
| WO2006043569A1 | 2006-04-27 |
Foreign References:
| US8692030B1 | 2014-04-08 | |||
| JP2005179567A | 2005-07-07 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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