Title:
PROCESS FOR REDUCING ALDEHYDE EMISSIONS IN POLYETHER POLYOLS AND POLYURETHANE FOAMS
Document Type and Number:
WIPO Patent Application WO/2021/179240
Kind Code:
A1
Abstract:
Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, a certain β-diketone compound and a water-soluble amino-functional polymer. Foams so produced emit low levels of aldehydes.
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| JPS63150255 | PRODUCTION OF POLYISOCYANATE |
| JP2023051091 | URETHANE SEALANT COMPOSITION |
| WO/2019/067939 | BLOWING AGENT COMPOSITION FOR PREPARATION OF A FOAM |
Inventors:
BAO WENBIN (CN)
FENG SHAOGUANG (CN)
LI HAIYING (CN)
ZHANG PING (CN)
TANG ZHENGMING (CN)
ZOU JIAN (CN)
JI JIE (CN)
FENG SHAOGUANG (CN)
LI HAIYING (CN)
ZHANG PING (CN)
TANG ZHENGMING (CN)
ZOU JIAN (CN)
JI JIE (CN)
Application Number:
PCT/CN2020/078948
Publication Date:
September 16, 2021
Filing Date:
March 12, 2020
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
BAO WENBIN (CN)
FENG SHAOGUANG (CN)
LI HAIYING (CN)
ZHANG PING (CN)
TANG ZHENGMING (CN)
ZOU JIAN (CN)
JI JIE (CN)
BAO WENBIN (CN)
FENG SHAOGUANG (CN)
LI HAIYING (CN)
ZHANG PING (CN)
TANG ZHENGMING (CN)
ZOU JIAN (CN)
JI JIE (CN)
International Classes:
C08G18/76; C08G18/28; C08J9/00; C08K5/00; C08L71/00
Domestic Patent References:
| WO2020024236A1 | 2020-02-06 | |||
| WO2020024233A1 | 2020-02-06 |
Foreign References:
| CN110305436A | 2019-10-08 | |||
| CN105764946A | 2016-07-13 | |||
| CN110446731A | 2019-11-12 | |||
| CN110446732A | 2019-11-12 | |||
| CN107735419A | 2018-02-23 | |||
| CN108026239A | 2018-05-11 | |||
| CN108884202A | 2018-11-23 |
Other References:
See also references of EP 4118128A4
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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