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Title:
HIGH-FLAME-RETARDANT LOW-TEMPERATURE FOAMING TYPE DOOR AND WINDOW PENETRATING STRIP FOAMING MATERIAL, POLYURETHANE FOAM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/142434
Kind Code:
A1
Abstract:
The present application relates to a high-flame-retardant low-temperature foaming type door and window penetrating strip foaming material, comprising combined polyether polyol and isocyanate, the foaming material being characterized in that, by using parts by weight as a reference gauge, the combined polyether polyol comprises the following components in parts by weight: 80-100 parts of polyester polyol, 10-20 parts of polyether polyol, 4-6 parts of a catalyst, 2-3 parts of a foam stabilizer, 30-40 parts of a flame retardant, 20-25 parts of a physical foaming agent and 0.5-1 part of a chemical foaming agent. Also provided in the present application are polyurethane foam for a high-flame-retardant low-temperature foaming type door and window penetrating strip and a preparation method therefor. The foaming material described herein may foam normally at 0°C, and the flame retardant property may reach B1 flame retardant grade.

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Inventors:
DONG JIANGUO (CN)
WEI LU (CN)
LI XUEQING (CN)
ZHOU JIANPING (CN)
Application Number:
PCT/CN2021/116144
Publication Date:
July 07, 2022
Filing Date:
September 02, 2021
Export Citation:
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Assignee:
SHANGHAI DONGDA POLYUREATHANE CO LTD (CN)
International Classes:
C08G18/76; C08G18/42; C08G18/48; C08J9/14; C08K5/521
Foreign References:
CN113402696A2021-09-17
CN112708105A2021-04-27
CN109294214A2019-02-01
CN106589277A2017-04-26
CN105461895A2016-04-06
CN103694446A2014-04-02
US20050148677A12005-07-07
Attorney, Agent or Firm:
SHANGHAI BILIPAT INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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