Title:
FOAMED MATERIAL, HEAT-PRESERVATION BOX BODY, AND PREPARATION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/196862
Kind Code:
A1
Abstract:
Disclosed are a foamed material, a heat-preservation box body, and preparation methods therefor. The foamed material comprises 100 parts of a combined polyol, 10-30 parts of a foaming agent composition, and 120-150 parts of an isocyanate. In the present invention, the type of the polyol used in a foaming system is adjusted in order to increase the content of a polyester polyol and reduce the content of a polyether polyol, such that the compressive strength of the foamed material is significantly improved without increasing or changing the injection amount.
Inventors:
LIU ZHANZHAN (CN)
LI PENG (CN)
ZHAO KUNKUN (CN)
LI PENG (CN)
ZHAO KUNKUN (CN)
Application Number:
PCT/CN2021/074601
Publication Date:
October 07, 2021
Filing Date:
February 01, 2021
Export Citation:
Assignee:
QINGDAO HAIER REFRIGERATOR CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
C08G18/48; C08G18/42; C08J9/14
Domestic Patent References:
| WO2018093709A1 | 2018-05-24 |
Foreign References:
| CN108129631A | 2018-06-08 | |||
| CN108192065A | 2018-06-22 | |||
| CN109206574A | 2019-01-15 | |||
| CN105085970A | 2015-11-25 | |||
| CN109503794A | 2019-03-22 | |||
| CN1421473A | 2003-06-04 |
Other References:
See also references of EP 4130084A4
Attorney, Agent or Firm:
SUZHOU WISPRO INTELLECTUAL PROPERTY AGENCY (CN)
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