Title:
METHOD FOR PRODUCING BIOPOLYETHER POLYOL, BIOPOLYETHER POLYOL, AND BIOPOLYURETHANE RESIN
Document Type and Number:
WIPO Patent Application WO/2018/220983
Kind Code:
A1
Abstract:
The present invention relates to a method for producing a biopolyether polyol, which is a copolymerization reaction of tetrahydrofuran and 2-methyltetrahydrofuran in a monomer ratio (by mass) of 85/15 to 50/50, and the resulting polyether polyol of 100% plant origin having a number-average molecular weight of 500-5000. In addition, a polyurethane resin, which is the product of a synthetic reaction having as the main reactants the above polyether polyol of 100% plant origin, a polyisocyanate compound, and a chain extender that reacts with isocyanate groups, has a change in storage modulus (E') in the low temperature range (0°C) with respect to normal temperature (20°C) of within 0-15%.
Inventors:
GOTO YOHEI (JP)
SATO TSUYOSHI (JP)
MARUYAMA YUO (JP)
SATO TSUYOSHI (JP)
MARUYAMA YUO (JP)
Application Number:
PCT/JP2018/013321
Publication Date:
December 06, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
International Classes:
C08G65/20; C08G18/66
Foreign References:
| CN103755948A | 2014-04-30 | |||
| US3631199A | 1971-12-28 | |||
| JPS486957B1 | ||||
| JP2006144192A | 2006-06-08 | |||
| JP2001011732A | 2001-01-16 | |||
| JP2011225863A | 2011-11-10 | |||
| JP2017506083A | 2017-03-02 | |||
| JP2010531839A | 2010-09-30 | |||
| JP2013502507A | 2013-01-24 | |||
| JPS63235320A | 1988-09-30 | |||
| JPS63235320A | 1988-09-30 | |||
| JPH01284518A | 1989-11-15 |
Other References:
See also references of EP 3632958A4
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
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