Title:
MODIFIED POLYETHER POLYOL AND USE THEREOF IN POLYURETHANE FOAM MATERIALS
Document Type and Number:
WIPO Patent Application WO/2020/132944
Kind Code:
A1
Abstract:
Provided are a modified polyether polyol and the use thereof in polyurethane foam materials. The method for preparing a modified polyether polyol comprises the following steps: 1) reacting a compound A with a polyether polyol, wherein the compound A is an anhydride and/or dicarboxylic acid compound containing a polymerizable double bond, preferably selected from one or two of maleic anhydride and itaconic anhydride, preferably maleic anhydride; and 2) reacting the product obtained in step 1) with an epoxy compound containing a polymerizable double bond in the presence of a catalyst, in order to prepare the modified polyether polyol. The modified polyether polyol obtained by means of the preparation method has more active sites, uses the polymerizable double bond for blocking, is used as a dispersion stabilizer for the synthesis of copolymer polyols, and has the characteristics of a better dispersion stability, filterability and a low viscosity.
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| JP2000504750 | [Title of Invention] Polyurethane Material |
Inventors:
LI FUGUO (CN)
LIU YANG (CN)
JU CHANGXUN (CN)
JIANG NAIHUA (CN)
LIU BIN (CN)
QIN CHENGQUN (CN)
WANG LUNPENG (CN)
LIU YANG (CN)
JU CHANGXUN (CN)
JIANG NAIHUA (CN)
LIU BIN (CN)
QIN CHENGQUN (CN)
WANG LUNPENG (CN)
Application Number:
PCT/CN2018/123901
Publication Date:
July 02, 2020
Filing Date:
December 26, 2018
Export Citation:
Assignee:
WANHUA CHEMICAL GROUP CO LTD (CN)
International Classes:
C08G65/332; C08F212/08; C08F220/44; C08F283/06; C08G18/32; C08G18/48; C08G18/63; C08G18/65; C08G18/66; C08G65/331
Domestic Patent References:
| WO1999040144A1 | 1999-08-12 |
Foreign References:
| CN103068867A | 2013-04-24 | |||
| CN101311203A | 2008-11-26 | |||
| US20180072846A1 | 2018-03-15 | |||
| CN108623757A | 2018-10-09 | |||
| US4550194A | 1985-10-29 | |||
| US5364906A | 1994-11-15 | |||
| US4390645A | 1983-06-28 | |||
| JPS59161406A | 1984-09-12 | |||
| CN1733813A | 2006-02-15 | |||
| US4550194A | 1985-10-29 | |||
| US4998857A | 1991-03-12 | |||
| EP2253584A | 2002-05-22 | |||
| US20030004217A1 | 2003-01-02 |
Other References:
See also references of EP 3904421A4
Attorney, Agent or Firm:
BOSS&YOUNG PATENT AND TRADEMARK LAW OFFICE (CN)
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