Title:
PREMIXED POLYETHER, RIGID POLYURETHANE FOAM AND PREPARATION METHOD THEREFOR, AND WATER HEATER
Document Type and Number:
WIPO Patent Application WO/2018/157292
Kind Code:
A1
Abstract:
A premixed polyether, a rigid polyurethane foam and a preparation method therefor, and a water heater. The premixed polyether comprises polyol and a foaming agent. The polyol comprises polyether polyol and/or polyester polyol. The foaming agent comprises hexafluorobutene. The rigid polyurethane foam material prepared from the premixed polyether is environmentally friendly and has a relatively low heat transfer coefficient.
Inventors:
YU YUANMING (CN)
ZHAO SHIHU (CN)
QU SHAOHE (CN)
YUAN HAIXIA (CN)
ZHU HONGYANG (CN)
ZHAO SHIHU (CN)
QU SHAOHE (CN)
YUAN HAIXIA (CN)
ZHU HONGYANG (CN)
Application Number:
PCT/CN2017/075233
Publication Date:
September 07, 2018
Filing Date:
February 28, 2017
Export Citation:
Assignee:
WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD (CN)
International Classes:
C08G18/48; C08J9/14
Domestic Patent References:
| WO2016136769A1 | 2016-09-01 |
Foreign References:
| CN105601978A | 2016-05-25 | |||
| CN101544778A | 2009-09-30 | |||
| CN102532582A | 2012-07-04 | |||
| CN102575046A | 2012-07-11 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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