Modified asphalt waterproof coiled material with sealing structure
By designing a double-layer sealing structure on the modified bitumen waterproof membrane, and utilizing the adhesive layer of the rubber outer cold-resistant layer and the sealing fiberglass felt layer, the problem of easy damage to the protrusions of the single-layer covering is solved, thereby improving the wear resistance and waterproof performance of the modified bitumen waterproof membrane.
Patent Information
- Application Number
- CN202520225701.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing modified bitumen waterproof membranes are prone to damage when laid with a single layer covering the raised parts, lacking a double-layer adhesive sealing design, making them susceptible to damage during the rainy season.
A modified bitumen waterproof membrane with a sealing structure was designed, comprising an outer rubber cold-resistant layer, first and second sealing elements, which respectively include a release sheet, a sealing fiberglass felt layer, release paper, and an adhesive layer. The gap between adjacent membranes is sealed by a double-layer sealing design, and a firm connection is achieved by using a wavy sealing protrusion fiberglass felt layer and adhesive layer.
It achieves double-layer bonding and sealing of modified bitumen waterproof membrane, effectively preventing rainwater from seeping into the gap between adjacent membranes, and enhancing waterproof performance and wear resistance.
Smart Images

Figure CN223923804U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to novel waterproof material manufacturing technical field, concretely relates to a modified asphalt waterproof coiled material with sealing structure. BACKGROUND
[0002] Modified asphalt waterproof coiled material is a kind of high-performance novel waterproof material, which is made of high-molecular polymer or rubber modified asphalt as dipping coating material, and mainly includes SBS modified asphalt waterproof coiled material and APP modified asphalt waterproof coiled material and other types.SBS modified asphalt waterproof coiled material is a flexible middle and high-grade coiled sheet-shaped waterproof material, which is made of thermoplastic elastomer SBS as modifier, petroleum asphalt as dipping coating material after modification, glass fiber felt or polyester felt as reinforcing material, plastic film, mineral particles and sheet materials as anti-sticking isolation layer, and is processed through material selection, batching, eutectic, dipping, rolling, composite molding, curling, inspection, volume division and packaging processes;SBS modified asphalt waterproof coiled material has large thickness, and has puncture resistance, tear resistance, fatigue resistance and cold resistance and low-temperature resistance;in cold climate, the coiled material can still maintain excellent performance, and is suitable for cold regions in the north.
[0003] When using the modified asphalt waterproof coiled material of novel waterproof material, in order to ensure the edge side sealing of the modified asphalt waterproof coiled material laid on the base layer, generally, the adjacent modified asphalt waterproof coiled materials are laid with edge side overlapping parts, and the overlapping parts play the role of sealing the edge side of the laid waterproof coiled material, but the overlapping parts form protrusions, and the single-layer overlapping protrusions are parts vulnerable to rainwater erosion and wind force, and the single-layer overlapping protrusions are easily damaged in rainy season.
[0004] The existing modified asphalt waterproof coiled material of novel waterproof material laid on the base layer is vulnerable to damage in rainy season when used, and does not have double-layer adhesive sealing design, so the application provides a modified asphalt waterproof coiled material with sealing structure. UTILITY MODEL CONTENTS
[0005] The utility model is based on the purpose of novel building waterproof material manufacturing, and provides a modified asphalt waterproof coiled material with sealing structure to solve the problem of no double-layer adhesive sealing design of the laid modified asphalt waterproof coiled material in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a modified asphalt waterproof coiled material with sealing structure, comprising
[0007] Modified asphalt waterproof coiled sheet;
[0008] Rubber outer cold-resistant layer arranged on the surface of the modified asphalt waterproof coiled sheet;
[0009] The first sealing piece installed on one side of the rubber outer cold-resistant layer comprises a first uncovering piece connected to one side of the rubber outer cold-resistant layer, a sealing convex glass fiber felt layer, and a first release paper, and a first adhesive layer is coated on the surface of the sealing convex glass fiber felt layer facing the first release paper.
[0010] The second sealing piece installed on the other side of the rubber outer cold-resistant layer comprises a second uncovering piece connected to the other side of the rubber outer cold-resistant layer, a sealing glass fiber felt layer connected to the second uncovering piece, a second release paper oppositely attached to the sealing glass fiber felt layer, and a second adhesive layer coated on the surface of the sealing glass fiber felt layer facing the second release paper.
[0011] Preferably, the rubber outer cold-resistant layer and the surfaces of the first uncovering piece and the second uncovering piece on the same side are flush.
[0012] Preferably, the sealing convex glass fiber felt layer is in a wavy shape, and the thicknesses of the first release paper and the second release paper are the same.
[0013] Preferably, the inner surface of the first uncovering piece is a sealing adhesive surface b.
[0014] Preferably, the opposite surfaces of the first release paper are attached to the first adhesive layer and the sealing adhesive surface b, respectively.
[0015] Preferably, the surface of the sealing glass fiber felt layer away from the second release paper is a sealing adhesive surface a.
[0016] Preferably, the inner surface of the second uncovering piece is attached to the sealing adhesive surface a.
[0017] Compared with the prior art, the utility model has the beneficial effects that:
[0018] In the utility model, the modified asphalt waterproof coiled material has a double-layer adhesive sealing design, when the adjacent modified asphalt waterproof coiled pieces are laid, the first uncovering piece and the second uncovering piece and the sealing glass fiber felt layer on the adjacent modified asphalt waterproof coiled pieces are unfolded respectively, after the first release paper and the second release paper are uncovered, the sealing glass fiber felt layer and the sealing convex glass fiber felt layer are firmly connected through the first adhesive layer, the first uncovering piece and the sealing glass fiber felt layer are firmly connected through the second adhesive layer, the first uncovering piece and the sealing convex glass fiber felt layer serve as a layer of sealing design, and the sealing glass fiber felt layer serves as a layer of sealing design, so that the gap between the adjacent modified asphalt waterproof coiled pieces can be sealed. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structural schematic view of the utility model;
[0020] Figure 2 It is a structural schematic view of the utility model; Figure 1 It is an enlarged structural schematic view of the middle C part;
[0021] Figure 3 It is the unfolding structure schematic view of the modified asphalt waterproof roll sheet side of the utility model;
[0022] Figure 4 It is the modified asphalt waterproof roll sheet of the utility model; Figure 3 The middle D part amplification structure schematic view;
[0023] In the drawing: 1, modified asphalt waterproof roll sheet; 2, rubber outer cold-resistant layer; 3, sealing convex glass fiber felt layer; 4, first adhesive layer; 5, first release paper; 6, sealing glass fiber felt layer; 7, second adhesive layer; 8, second release paper; 21, first uncovering sheet; 22, second uncovering sheet. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0025] Please refer to Figures 1 to 4This utility model provides a technical solution: a modified bitumen waterproof membrane with a sealing structure, comprising a modified bitumen waterproof membrane 1, which is a novel waterproof material with cold resistance; its structure and manufacturing are existing technologies and will not be described in detail here; a rubber outer cold-resistant layer 2 disposed on the surface of the modified bitumen waterproof membrane 1, which is formed by pressing the modified bitumen waterproof membrane 1 together with the modified bitumen waterproof membrane 1 using equipment; the rubber outer cold-resistant layer 2 is made of cold-resistant and wear-resistant rubber material, which increases the cold resistance and wear resistance of the surface of the modified bitumen waterproof membrane 1; and a first [missing information - likely a component or material] installed on one side of the rubber outer cold-resistant layer 2. The sealing element includes a first release tab 21 connected to one side of the outer rubber cold-resistant layer 2, a sealing raised fiberglass felt layer 3, a first release paper 5, and a first adhesive layer 4 applied to the surface of the sealing raised fiberglass felt layer 3 facing the first release paper 5. The sealing raised fiberglass felt layer 3 and the first release tab 21 form a sealing layer. When adjacent modified bitumen waterproof rolls 1 (A and B) come into contact, the gap between the contacting parts of the modified bitumen waterproof rolls 1 (A and B) is blocked by the sealing raised fiberglass felt layer 3 and the first release tab 21, preventing external rainwater from entering the modified bitumen waterproof rolls 1 (A and B). The gap between the A-modified bitumen waterproof roll 1 and the B-modified bitumen waterproof roll 1, with its large contact area of the wavy-shaped sealing raised fiberglass felt layer 3, can prevent water molecules from penetrating into the gap between them. After peeling off the first release paper 5, the first adhesive layer 4 on the sealing raised fiberglass felt layer 3 is firmly bonded to the sealing fiberglass felt layer 6, ensuring the stability of the sealing fiberglass felt layer 6. The second sealing element, installed on the other side of the rubber outer cold-resistant layer 2, includes a second release tab 22 connected to the other side of the rubber outer cold-resistant layer 2, a sealing fiberglass felt layer 6 connected to the second release tab 22, a second release paper 8 bonded to the sealing fiberglass felt layer 6, and a layer of adhesive applied to the sealing fiberglass felt layer 6. The second adhesive layer 7 on the surface of the sealing fiberglass felt layer 6 facing the second release paper 8, and the second release tab 22 and the sealing fiberglass felt layer 6 are designed as a sealing layer. When the adjacent A modified bitumen waterproof roll 1 and B modified bitumen waterproof roll 1 are laid in contact, the second release tab 22 is opened, the folded sealing fiberglass felt layer 6 is unfolded, and the sealing fiberglass felt layer 6 is bonded to the first adhesive layer 4 on the sealing raised fiberglass felt layer 3. Then the second release paper 8 is peeled off, so that the second adhesive layer 7 on the sealing fiberglass felt layer 6 is bonded to the first release tab 21. The first release tab 21 covers and blocks the gap between the sealing fiberglass felt layer 6 and the sealing raised fiberglass felt layer 3.
[0026] In this embodiment, the surfaces of the rubber outer cold-resistant layer 2, the first peel-off sheet 21, and the second peel-off sheet 22 on the same side are flush, and the outer surface of the modified asphalt waterproof roll 1 is in a flat state.
[0027] In this embodiment, the sealing raised fiberglass felt layer 3 is wavy. The wavy sealing raised fiberglass felt layer 3 has a large contact area. When the infiltrated water molecules flow on the sealing raised fiberglass felt layer 3, there are peaks and troughs on the sealing raised fiberglass felt layer 3. The peaks can block the infiltrated water molecules, further preventing water molecules from penetrating into the gap between the A modified bitumen waterproof roll 1 and the B modified bitumen waterproof roll 1. The first release paper 5 and the second release paper 8 have the same thickness. The surfaces of the first release paper 5 and the second release paper 8 are coated with a special release coating, which makes the paper surface have extremely low surface energy and not easy to bond with glue or other adhesive substances. The first release paper 5 and the second release paper 8 are existing technologies and will not be described in detail in this application. The first release paper 5 and the second release paper 8 can be peeled off to expose the first adhesive layer 4 and the second adhesive layer 7.
[0028] In this embodiment, the inner surface of the first release sheet 21 is the sealing adhesive surface b, the opposite surface of the first release paper 5 is respectively bonded to the first adhesive layer 4 and the sealing adhesive surface b, the surface of the sealing fiberglass felt layer 6 facing away from the second release paper 8 is the sealing adhesive surface a, the inner surface of the second release sheet 22 is bonded to the sealing adhesive surface a, the adjacent A modified bitumen waterproof roll 1 and B modified bitumen waterproof roll 1 are in contact, the sealing adhesive surface a of the sealing fiberglass felt layer 6 is bonded to the first adhesive layer 4, and the sealing adhesive surface b of the first release sheet 21 is bonded to the second adhesive layer 7, thereby achieving the effect of sealing the gap between the adjacent A modified bitumen waterproof roll 1 and B modified bitumen waterproof roll 1.
[0029] Working principle and usage process of this utility model:
[0030] When laying modified bitumen waterproof membrane 1 on the base layer, adjacent modified bitumen waterproof membrane 1 A and modified bitumen waterproof membrane 1 B are laid on the base layer.
[0031] The outer cold-resistant rubber layer 2 enhances the cold resistance and abrasion resistance of the modified asphalt waterproof roll 1 surface layer;
[0032] Unfold the first opening piece 21 and the second opening piece 22 and the sealing fiberglass felt layer 6 on the adjacent A modified bitumen waterproof roll 1 and B modified bitumen waterproof roll 1 respectively.
[0033] Peel off the first release paper 5 on the A modified bitumen waterproof roll 1 to expose the first adhesive layer 4;
[0034] The sealing fiberglass felt layer 6 on the modified bitumen waterproof roll 1 is firmly bonded to the first adhesive layer 4;
[0035] The sealing fiberglass felt layer 6 and the sealing raised fiberglass felt layer 3 seal the gap between the A modified bitumen waterproof roll 1 and the B modified bitumen waterproof roll 1. The sealing raised fiberglass felt layer 3 has crests and troughs. The crests can block the infiltrated water molecules and further prevent water molecules from penetrating into the gap between the A modified bitumen waterproof roll 1 and the B modified bitumen waterproof roll 1.
[0036] Then peel off the second release paper 8 on the B modified bitumen waterproof roll 1 to expose the second adhesive layer 7;
[0037] The sealing and bonding surface b of the first peel-off piece 21 on the A modified bitumen waterproof roll 1 is firmly bonded to the second adhesive layer 7. The first peel-off piece 21 covers and blocks the gap between the sealing fiberglass felt layer 6 and the sealing raised fiberglass felt layer 3.
[0038] In summary, this practical modified bitumen waterproof membrane has a double-layer adhesive sealing design. When laying adjacent modified bitumen waterproof membranes, the first release tab 21 and the second release tab 22 and the sealing fiberglass felt layer 6 on the adjacent modified bitumen waterproof membrane 1 are unfolded respectively. After peeling off the first release paper 5 and the second release paper 8, the sealing fiberglass felt layer 6 and the sealing raised fiberglass felt layer 3 are firmly bonded by the first adhesive layer 4, and the first release tab 21 and the sealing fiberglass felt layer 6 are firmly bonded by the second adhesive layer 7. The first release tab 21 and the sealing raised fiberglass felt layer 3, as well as the sealing fiberglass felt layer 6, serve as a sealing layer, which can seal the gap between adjacent modified bitumen waterproof membranes 1.
[0039] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A modified bitumen waterproof membrane with a sealing structure, characterized in that: include Modified bitumen waterproof roll (1); A rubber outer cold-resistant layer (2) is set on the surface of the modified bitumen waterproof roll (1); The first seal installed on one side of the rubber outer cold-resistant layer (2) includes a first peel-off piece (21) connected to one side of the rubber outer cold-resistant layer (2), a sealing raised glass fiber felt layer (3) and a first release paper (5), and a first adhesive layer (4) applied to the surface of the sealing raised glass fiber felt layer (3) facing the first release paper (5). The second seal installed on the other side of the rubber outer cold-resistant layer (2) includes a second release tab (22) connected to the other side of the rubber outer cold-resistant layer (2), a sealing fiberglass felt layer (6) connected to the second release tab (22), a second release paper (8) bonded to the sealing fiberglass felt layer (6), and a second adhesive layer (7) applied to the surface of the sealing fiberglass felt layer (6) facing the second release paper (8).
2. The modified bitumen waterproof membrane with a sealing structure according to claim 1, characterized in that: The surfaces of the rubber outer cold-resistant layer (2), the first opening piece (21), and the second opening piece (22) are flush with each other.
3. The modified bitumen waterproof membrane with a sealing structure according to claim 1, characterized in that: The sealing raised fiberglass felt layer (3) is wavy, and the first release paper (5) and the second release paper (8) have the same thickness.
4. The modified bitumen waterproof membrane with a sealing structure according to claim 1, characterized in that: The inner surface of the first peeling piece (21) is the sealing adhesive surface b.
5. The modified bitumen waterproof membrane with a sealing structure according to claim 4, characterized in that: The opposite surfaces of the first release paper (5) are respectively bonded to the first adhesive layer (4) and the sealing adhesive surface b.
6. The modified bitumen waterproof membrane with a sealing structure according to claim 1, characterized in that: The surface of the sealing fiberglass felt layer (6) facing away from the second release paper (8) is the sealing adhesive surface a.
7. A modified bitumen waterproof membrane with a sealing structure according to claim 6, characterized in that: The inner surface of the second peeling piece (22) is bonded to the sealing adhesive surface a.