Title:
CLOSED POROUS COMPOSITE MATERIAL, THERMAL INSULATION MATERIAL, SOUND INSULATION MATERIAL, AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/052524
Kind Code:
A1
Abstract:
A closed porous composite material and a manufacturing method thereof. The method comprises: 1) preparing a mixture, wherein the mixture comprises 30 to 70 parts by weight of water-dispersed resin, 10 to 300 parts by weight of unexpanded thermal expansion microspheres, and 100 to 550 parts by weight of water, and stirring the mixture thoroughly; 2) preparing a carrier; 3) coating the carrier with the mixture acquired in step 1; 4) heating the carrier for a certain period of time, such that during heating, the unexpanded thermal expansion microspheres expand; and 5) repeating steps 3 and 4 multiple times to acquire a closed porous composite material. The closed porous composite material comprises a large number of closed cavities and polymer walls separating the closed cavities from each other, such that a size range of the closed cavity is 20 μm to 800 μm, and the ratio of a total volume of the closed cavities to a total volume of the polymer walls is greater than 16.
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Inventors:
ZHONG JINBANG (CN)
Application Number:
PCT/CN2019/104980
Publication Date:
March 19, 2020
Filing Date:
September 09, 2019
Export Citation:
Assignee:
ZHONG JINBANG (CN)
International Classes:
B05D5/00; D06N3/00; B05D7/24; D06N3/04; D06N3/14
Foreign References:
CN109137537A | 2019-01-04 | |||
CN106591504A | 2017-04-26 | |||
CN106671634A | 2017-05-17 | |||
CN106801111A | 2017-06-06 | |||
CN1354085A | 2002-06-19 | |||
CN107401060A | 2017-11-28 | |||
CN201811051379A | 2018-09-10 |
Other References:
See also references of EP 3816341A4
Attorney, Agent or Firm:
BEIJING ORIGINTELLIGENCE IP LAW FIRM (CN)
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