Waterproof and moisture-proof and vapor-proof film, and preparation method and application thereof

By using a combination of polyester spunlace fabric and polyurethane adhesive, the problems of easy wrinkling and poor adhesion of waterproof and moisture-proof vapor barrier membranes in high-temperature environments are solved, achieving strong adhesion with tile adhesive and improved weather resistance.

CN122165736APending Publication Date: 2026-06-09BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
Filing Date
2026-02-13
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing waterproof and moisture-proof vapor barrier membranes are prone to wrinkling and have poor adhesion in high-temperature environments, as well as poor weather resistance, which leads to the risk of falling off when used in places such as bathrooms with underfloor heating.

Method used

Polyester spunlace fabric is used as the surface layer, and polyurethane adhesive is used to form a three-dimensional cross-linked structure. Combined with a corona-treated core layer and a water vapor humidification composite process, the bonding strength and weather resistance are improved.

Benefits of technology

It enhances the adhesion between the waterproof and moisture-proof vapor barrier membrane and the tile adhesive, reduces construction wrinkles, and improves the reliability and weather resistance in high-temperature environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a waterproof and moisture-proof vapor barrier film and a preparation method and application thereof, and belongs to the technical field of waterproofing. The waterproof and moisture-proof vapor barrier film comprises, from top to bottom, a first polyester spunlace cloth, a first adhesive layer, a core layer, a second adhesive layer and a second polyester spunlace cloth; the first adhesive layer and the second adhesive layer are formed by curing a polyurethane adhesive.
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