Title:
THERMOPLASTIC AND ELASTOMERIC POLYURETHANES PRODUCED FROM BIOBASED 1, 5-PENTAMETHYLENE DIISOCYANATE
Document Type and Number:
WIPO Patent Application WO/2023/193178
Kind Code:
A1
Abstract:
Thermoplastic and elastomeric polyurethanes (PUs) are obtained from a biobased monomeric pentamethylene diisocyanate (PDI) having a biobased content of at least 70 % and at least one polyol selected from a polyester diol, a polyether diol, and a combination thereof. Thermoplastic PUs are prepared by reacting the PDI and the polyol in the presence of a chain extender. Elastomer PUs are prepared by reacting the PDI and the polyol in the presence of a curative agent. In some embodiments, the thermoplastic and elastomer PUs can comprise a molar ratio of PDI to polyol of at least 1.1: 1. In some embodiments, the polyol can be a biobased polyol and can have a molecular weight of at least 500 g/mol. In some embodiments, thermoplastic and elastomer PUs with biobased content of more than 90% can be prepared.
Inventors:
LAU MAN KIT (CN)
CHIEW ANSEN (CN)
SENDIJAREVIC IBRAHIM (US)
CHIEW ANSEN (CN)
SENDIJAREVIC IBRAHIM (US)
Application Number:
PCT/CN2022/085521
Publication Date:
October 12, 2023
Filing Date:
April 07, 2022
Export Citation:
Assignee:
MOJIA SHANGHAI BIOTECHNOLOGY CO LTD (CN)
International Classes:
C08G18/12; C08G18/73; C08G18/32; C08G18/42; C08G18/48; C08G18/66
Domestic Patent References:
| WO2021254807A1 | 2021-12-23 |
Foreign References:
| CN103347852A | 2013-10-09 | |||
| CN101495643A | 2009-07-29 | |||
| JP2011201863A | 2011-10-13 | |||
| JP2019154313A | 2019-09-19 |
Attorney, Agent or Firm:
WU, FENG & ZHANG (CN)
Download PDF: