Title:
AMINE-FREE ELASTIC ACRYLATE EMULSION, WATERPROOF COATING, AND PREPARATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/006016
Kind Code:
A1
Abstract:
The present invention relates to an acrylate emulsion, a waterproof coating and a preparation method. The raw material formulation of the acrylate emulsion comprises an acidic functional monomer, a soft monomer, a crosslinking monomer, a hard monomer, a post-crosslinking agent, etc., wherein an emulsifier at least contains a reactive emulsifier, which contains a carbon-carbon double bond and a hydroxyl group; the crosslinking monomer contains a carbon-carbon double bond; and the post-crosslinking agent is a siloxane having an epoxy group. By means of the combined use of the double-bond-containing reactive emulsifier, the crosslinking monomer and the acidic functional monomer, not only can the double bond of the reactive emulsifier be linked to a polymer by means of a reaction so as to improve the mechanical stability, but the hydroxyl group can also react with a carboxyl group to form crosslinking so as to improve the crosslinking degree and the water resistance. The double-bond-containing crosslinking monomer enables cross-linking between molecular chains, such that the polymer is more compact, and the waterproof performance is further improved. Moreover, the post-crosslinking agent is added, such that after the emulsion is cured into a film, the binding force between polymer particles is higher, thereby further improving the water resistance and the mechanical strength.
Inventors:
WANG FENG (CN)
SHEN HENG (CN)
SHEN HENG (CN)
Application Number:
PCT/CN2022/108491
Publication Date:
February 02, 2023
Filing Date:
July 28, 2022
Export Citation:
Assignee:
JIANGSU CANLON BUILDING MAT CO LTD (CN)
International Classes:
C09D133/06; C08F220/18
Foreign References:
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| CN108164638A | 2018-06-15 | |||
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| CN104342073A | 2015-02-11 | |||
| JP2002249719A | 2002-09-06 | |||
| JP2003176311A | 2003-06-24 | |||
| JP2003165803A | 2003-06-10 | |||
| CN106065044A | 2016-11-02 | |||
| CN109810227A | 2019-05-28 | |||
| CN111303719A | 2020-06-19 | |||
| CN107459602A | 2017-12-12 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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