Title:
PRE-APPLIED POLYMER WATERPROOFING SHEET AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/155395
Kind Code:
A1
Abstract:
The present invention relates to a pre-applied polymer waterproofing sheet and a preparation method therefor. The pre-applied polymer waterproofing sheet comprises a base material layer, an adhesive layer and a protective coating which are sequentially stacked, raw materials of the protective coating comprising an acrylic resin emulsion having a core-shell structure, wherein the glass transition temperature of a shell polymer of an acrylic resin is greater than the glass transition temperature of a core polymer, and the theoretical glass transition temperature of the resin used by the acrylic resin in which all monomers are polymerized into an irregular copolymer is designed to be 0-20°C. Research finds that the acrylic resin having the core-shell structure using different glass transition temperatures is used as a film forming material of the protective coating of the pre-applied polymer waterproofing sheet, so that the protective coating is not easy to crack after the pre-applied polymer waterproofing sheet is rolled. Moreover, using at high temperature or immediately rolling after the sheet is produced can avoid the problem that the sheet is difficult to unroll due to adhesion between the protective coating and the base material layer on the back surface.
Inventors:
WANG FENG (CN)
SHEN HENG (CN)
SHEN HENG (CN)
Application Number:
PCT/CN2022/112052
Publication Date:
August 24, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
JIANGSU CANLON BUILDING MAT CO LTD (CN)
International Classes:
C09J7/20; C09D151/00; C09J7/35; C09J7/38; C09J153/02
Foreign References:
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| US20130037989A1 | 2013-02-14 | |||
| CN103119113A | 2013-05-22 | |||
| CN109321154A | 2019-02-12 | |||
| CN202755985U | 2013-02-27 | |||
| CN103358635A | 2013-10-23 | |||
| JP2005349684A | 2005-12-22 | |||
| CN107936169A | 2018-04-20 | |||
| CN104387521A | 2015-03-04 | |||
| CN102382533A | 2012-03-21 | |||
| CN102532403A | 2012-07-04 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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