Self-adhesive polymer modified asphalt waterproof coiled material

By installing joint connectors at the seams of the waterproof membrane and using heat fusion bonding, the problem of cracking at the joints of the waterproof membrane was solved, resulting in stronger connection strength and better aesthetics, while ensuring waterproof performance.

CN223952111UActive Publication Date: 2026-02-27BEIJING LANGKUN WATERPROOF MATERIAL CO LTD
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Patent Information

Application Number
CN202520175460.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-26
Publication Date
2026-02-27
Estimated Expiration
2035-01-26

AI Technical Summary

Technical Problem

Existing waterproof membranes are prone to cracking at the joints, leading to water leakage and affecting the waterproofing effect.

Method used

Self-adhesive polymer-modified bitumen waterproof membrane is used. A joint connector is set at the joint, which includes a force-applying part and a connecting part. An electric heating wire is arranged in the connecting part to connect adjacent membranes by heat fusion. After connection, the membranes can be separated to ensure flatness, aesthetics and connection strength.

Benefits of technology

It improves the connection strength and aesthetics of the joints of the waterproof membrane, ensures the waterproof effect, and prevents water leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-adhesive polymer modified asphalt waterproof coiled material which comprises a modified asphalt waterproof coiled material main body and a seam connector, the seam connector comprises a horizontally distributed force application part and a vertically distributed connecting part, and heating wires are arranged at the joint of the force application part and the connecting part and on the connecting part. And the surface of the connecting part is arranged to be a sawtooth-shaped surface. When the self-adhesive polymer modified asphalt waterproof coiled material is laid, the seam connecting body is unfolded along the seam of the modified asphalt waterproof coiled material, the force application part is pressed to embed the connecting part of the seam connecting body into the seam, and the electric heating wire is heated to enable the connecting part to be hot-melted, so that the end parts of the adjacent modified asphalt waterproof coiled materials are connected together; at the moment, the force application part can be torn off from the connecting part, so that a bulge can be prevented from appearing at the joint of the adjacent self-adhesive polymer modified asphalt waterproof coiled materials, the surface of the joint of the self-adhesive polymer modified asphalt waterproof coiled materials is smoother and more attractive, and meanwhile, the connecting strength is guaranteed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building waterproof materials, and particularly relates to a self-adhesive polymer modified asphalt waterproof roll. BACKGROUND

[0002] With the development of scientific and technological progress and economic construction, waterproof rolls are used in more and more waterproof projects, and play an increasingly important role. The waterproof roll is mainly used in building walls, roofs, tunnels, roads, landfills and the like, and can prevent water seepage and penetration.

[0003] At present, two adjacent waterproof rolls are connected by mutual covering. In the connection process, the adhesion effect between the two waterproof rolls is poor, and cracking is prone to occur. Water seeps through the gap between the waterproof rolls, affecting the waterproof effect. SUMMARY

[0004] In order to improve the waterproof effect of the joint of the waterproof roll, the present application provides a self-adhesive polymer modified asphalt waterproof roll.

[0005] The present application provides a self-adhesive polymer modified asphalt waterproof roll, which adopts the following technical scheme:

[0006] The self-adhesive polymer modified asphalt waterproof roll comprises a modified asphalt waterproof roll main body and a joint connecting body. The joint connecting body comprises a horizontally distributed force applying part and a vertically distributed connecting part. Electric heating wires are arranged at the connecting part of the force applying part and the connecting part.

[0007] Optionally, the surface of the connecting part is provided in a sawtooth shape.

[0008] Optionally, the material of the joint connecting body is SBS thermoplastic elastomer.

[0009] Optionally, the modified asphalt waterproof roll main body comprises a base layer, a modified asphalt layer, a crack-resistant reinforcing layer, an isolation protective layer, an adhesive layer and a self-adhesive protective layer which are sequentially arranged on the base layer.

[0010] Optionally, the modified asphalt layer comprises an upper modified asphalt layer and a lower modified asphalt layer, and the upper modified asphalt layer and the lower modified asphalt layer are arranged on the upper and lower sides of the base layer.

[0011] Optionally, the crack-resistant reinforcing layer comprises a rectangular grid fiber mesh and a rhombic grid fiber mesh. The rectangular grid fiber mesh is bonded to the surface of the upper modified asphalt layer and the lower modified asphalt layer facing the base layer, and the rhombic grid fiber mesh is bonded to the surface of the upper modified asphalt layer and the lower modified asphalt layer away from the base layer.

[0012] Optionally, the isolation protective layer is arranged on the side of the upper modified asphalt layer away from the base layer.

[0013] Optionally, the adhesive layer is arranged on the side of the lower modified asphalt layer away from the base layer, and the self-adhesive protective layer is arranged on the side of the adhesive layer away from the base layer.

[0014] To sum up, the self-adhesive polymer modified asphalt waterproof roll of the application has the beneficial technical effects that the joint connector is arranged at the joint of the self-adhesive polymer modified asphalt waterproof roll, which can connect the adjacent modified asphalt waterproof rolls together through hot melting on one hand, and the joint connector can be separated after hot melting on the other hand, so that the surface of the joint of the waterproof roll is smooth and beautiful, and the connection strength of the waterproof roll is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic diagram of the main structure of the self-adhesive polymer modified asphalt waterproof roll in the embodiment of the application;

[0016] Figure 2 is a schematic diagram of the connection structure of the self-adhesive polymer modified asphalt waterproof roll in the embodiment of the application.

[0017] The reference signs are explained as follows: 1, base layer; 2, upper modified asphalt layer; 3, lower modified asphalt layer; 4, rectangular grid fiber net; 5, rhombic grid fiber net; 6, isolation protective layer; 7, adhesive layer; 8, self-adhesive protective layer; 9, joint connector; 91, force applying part; 92, connecting part. DETAILED DESCRIPTION

[0018] The application will be further described in detail below with reference to the accompanying drawings.

[0019] The embodiment of the application discloses a self-adhesive polymer modified asphalt waterproof roll. Figure 1 The self-adhesive polymer modified asphalt waterproof roll comprises a modified asphalt waterproof roll main body, and the modified asphalt waterproof roll main body comprises a base layer 1, a modified asphalt layer, a crack-resistant reinforcing layer, an isolation protective layer 6, an adhesive layer 7 and a self-adhesive protective layer 8.

[0020] The base layer 1 is a polyester base layer, which is the main base of the modified asphalt waterproof roll and has the advantages of high strength, good ductility, puncture resistance, light weight, good tensile strength, high temperature resistance, cold resistance and the like.

[0021] The modified asphalt layer comprises an upper modified asphalt layer 2 and a lower modified asphalt layer 3, and the upper modified asphalt layer 2 and the lower modified asphalt layer 3 are arranged on the upper and lower sides of the base layer 1. The modified asphalt layer is composed of modified asphalt, which is used to meet the waterproof requirements of the modified asphalt waterproof roll and enhance the ductility and puncture resistance and tear resistance of the base layer 1 in structure.

[0022] The anti-cracking reinforcing layer includes a rectangular grid fiber web 4 and a diamond grid fiber web 5, and the upper modified asphalt layer 2 and the lower modified asphalt layer 3 are both pasted with the anti-cracking reinforcing layer, specifically, the rectangular grid fiber web 4 is pasted on the surface of the upper modified asphalt layer 2 and the lower modified asphalt layer 3 facing the base layer 1, and the diamond grid fiber web 5 is pasted on the surface of the upper modified asphalt layer 2 and the lower modified asphalt layer 3 away from the base layer 1, the anti-tear ability of the modified asphalt waterproof roll in the horizontal and vertical directions is improved through the rectangular grid fiber web 4, and the anti-tear ability of the modified asphalt waterproof roll in the diagonal oblique direction is improved through the diamond grid fiber web 5.

[0023] The isolation protective layer 6 is arranged on the side of the upper modified asphalt layer 2 away from the base layer 1, the isolation protective layer 6 is made of PE film, the surface of the modified asphalt waterproof roll is protected, and the service life of the modified asphalt waterproof roll is improved.

[0024] The adhesive layer 7 is arranged on the side of the lower modified asphalt layer 3 away from the base layer 1, and the adhesive layer 7 can be made of a polymer self-adhesive oil. The adhesive layer 7 is used to enhance the adhesion to facilitate the laying of the modified asphalt waterproof roll in the construction project, and the adhesive layer 7 makes the construction process of the modified asphalt waterproof roll more convenient, which can save time cost and labor cost.

[0025] The self-adhesive protective layer 8 is arranged on the side of the adhesive layer 7 away from the base layer 1, and the self-adhesive protective layer 8 is made of isolation paper. The self-adhesive protective layer 8 is used as a protective layer of the adhesive layer 7 to avoid the adhesive layer 7 adhering impurities and dust in the air, which causes the adhesion of the adhesive layer 7 to be poor, thereby facilitating the storage and transportation of the modified asphalt waterproof roll.

[0026] Referring to Figure 2 , the self-adhesive polymer modified asphalt waterproof roll further includes a joint connecting body 9 distributed in a strip shape, the joint connecting body 9 has a T-shaped cross section, includes a horizontally distributed force applying part 91 and a vertically distributed connecting part 92, and an electric heating wire is arranged at the connecting part 92 and the connecting part 92 of the force applying part 91. The material of the joint connecting body 9 can be SBS thermoplastic elastomer.

[0027] When the self-adhesive polymer modified asphalt waterproof roll is laid, the joints of adjacent self-adhesive polymer modified asphalt waterproof rolls are aligned, the joint connecting body 9 is unfolded along the joint of the modified asphalt waterproof roll, the connecting part 92 of the joint connecting body 9 is embedded into the joint by pressing the force applying part 91, the connecting part 92 is hot-melted by the electric heating wire, and then the ends of adjacent modified asphalt waterproof rolls are connected together. At this time, the force applying part 91 can be torn off from the connecting part 92, which can avoid the protrusion at the joint of adjacent self-adhesive polymer modified asphalt waterproof rolls, make the surface of the joint of the self-adhesive polymer modified asphalt waterproof roll more flat and beautiful, and at the same time, the connection strength is guaranteed.

[0028] Further, the connecting part 92 surface of the joint connector 9 can be provided as a jagged surface, and the corresponding surface of the self-adhesive polymer modified asphalt waterproof roll is also jagged and roughened, so that the contact area between the two can be effectively increased after the connecting part 92 is hot melted, and the adjacent self-adhesive polymer modified asphalt waterproof rolls are connected more tightly.

[0029] The specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A self-adhesive polymer-modified bitumen waterproof membrane, characterized in that: It includes a modified bitumen waterproof membrane body and a joint connector (9). The joint connector (9) includes a horizontally distributed force-applying part (91) and a vertically distributed connecting part (92). Heating wires are arranged at the connection between the force-applying part (91) and the connecting part (92) and on the connecting part (92).

2. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 1, characterized in that: The surface of the connecting part (92) is configured as a serrated surface.

3. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 1, characterized in that: The material of the joint connector (9) is SBS thermoplastic elastomer.

4. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 1, characterized in that: The modified bitumen waterproof membrane consists of a base layer (1) and a modified bitumen layer, a crack-resistant reinforcement layer, an isolation and protective layer (6), an adhesive layer (7), and a self-adhesive protective layer (8) laid on the base layer (1).

5. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 4, characterized in that: The modified asphalt layer includes an upper modified asphalt layer (2) and a lower modified asphalt layer (3), which are located on the upper and lower sides of the base course (1).

6. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 5, characterized in that: The crack-resistant reinforcement layer includes a rectangular mesh fiber net (4) and a diamond mesh fiber net (5). The rectangular mesh fiber net (4) is bonded to the surfaces of the upper modified asphalt layer (2) and the lower modified asphalt layer (3) facing the base course (1), and the diamond mesh fiber net (5) is bonded to the surfaces of the upper modified asphalt layer (2) and the lower modified asphalt layer (3) away from the base course (1).

7. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 6, characterized in that: The isolation and protective layer (6) is disposed on the side of the upper modified asphalt layer (2) away from the base course (1).

8. The self-adhesive polymer-modified bitumen waterproof membrane according to claim 7, characterized in that: The adhesive layer (7) is disposed on the side of the lower modified asphalt layer (3) away from the base course (1), and the self-adhesive protective layer (8) is disposed on the side of the adhesive layer (7) away from the base course (1).