Warm-edge hollow glass spacer
By using edge adhesive to bond with the glass in the spacer of the insulating glass, molecular sieve adhesive to absorb moisture, inner adhesive to provide support, and aluminum-plated film to enhance adhesion, a triple seal is formed, which solves the problem of poor sealing performance of traditional insulating glass and achieves better sealing and durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING MINGBO GLASS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional insulated glass sealing methods suffer from poor sealing, easy deformation, easy displacement, and poor UV resistance and anti-aging effects, resulting in substandard dew point and short service life.
The support is bonded to the glass with side adhesive on both sides, and a molecular sieve adhesive is used to absorb moisture. The inner adhesive provides support, and an aluminized film serves as an intermediate medium. The side adhesive and silicone sealant are bonded to the glass, and the aluminized film 13 and butyl rubber form a triple seal to improve the bonding strength.
It significantly improves the water tightness and air tightness of glass, reduces noise transmission, maintains stable indoor temperature, reduces energy consumption, extends service life, and reduces wear on hardware components.
Smart Images

Figure CN224413460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of spacers for insulating glass, and specifically to a spacer for insulating glass with a warm edge. Background Technology
[0002] Insulating glass sealing is mainly divided into two types: channel aluminum type and composite strip type. Channel aluminum type insulating glass sealing uses aluminum strips, desiccants, corner inserts and other materials to form an intermediate gas spacer layer, and then seals it with sealing material.
[0003] Ordinary composite sealing strips are simply made of butyl rubber, polymer adhesive, desiccant, and continuous corrugated aluminum strips. They replace the double seals used in traditional insulated glass production, providing both sealing and support.
[0004] The main disadvantages of aluminum-grooved insulating glass seals are poor sealing performance, easy moisture ingress, and short lifespan. They are gradually being phased out. They are also ineffective in terms of bonding strength, UV resistance, and anti-aging. During use, ordinary composite adhesive strips have many problems such as unqualified dew point, easy stretching and deformation during construction and use, easy buckling, and easy displacement. Utility Model Content
[0005] To address the aforementioned issues, namely the problems of unqualified dew point, easy stretching and deformation during construction and use, easy buckling, and easy displacement of composite adhesive strips, this utility model proposes a warm-edge insulating glass spacer strip, which includes a support body. Edge adhesive is provided on both the left and right sides of the support body, and molecular sieve adhesive is provided on the side of the support body closer to the interior of the glass.
[0006] A further feature of this invention is that the support body includes bent aluminum, the outer side of the bent aluminum is covered with inner adhesive, the outer side of the inner adhesive is covered with an aluminum-plated film, the cross-section of the aluminum-plated film is set in an inverted "U" shape, the edge adhesive is disposed on both sides of the aluminum-plated film, and the molecular sieve adhesive is disposed below the aluminum-plated film.
[0007] A further feature of this invention is that the upper surface of the aluminized film protrudes from the edge adhesive.
[0008] A further feature of this invention is that a butyl rubber body is bonded to the side of the edge adhesive that is away from the interior of the glass, the butyl rubber body is aligned with the protruding side of the aluminized film, and a silicone sealant is bonded to the outer sides of the aluminized film and the butyl rubber body.
[0009] A further feature of this invention is that the edge adhesive is a polymer of butyl rubber and polyisobutylene; the molecular sieve adhesive is a composite of planar molecular sieve and butyl rubber; and the inner adhesive is also a polymer of butyl rubber and polyisobutylene.
[0010] The beneficial effects of this utility model are as follows:
[0011] Compared with the traditional sealing method of insulated glass, polymer edge adhesive is used to bond with the glass. The better shear force of the edge adhesive prevents the adhesive from overflowing into the glass. The molecular sieve adhesive can better absorb moisture and humidity inside the glass wall. The inner adhesive has high strength and can play a good supporting role. Attached Figure Description
[0012] Figure 1 A schematic diagram of the structure of this utility model is shown.
[0013] Figure 2 The diagram shows the position of the present invention relative to the glass during use.
[0014] Reference numerals: 1. Support body; 11. Bent aluminum; 12. Inner adhesive; 13. Aluminized film; 2. Edge adhesive; 3. Molecular sieve adhesive; 4. Butyl rubber body; 5. Silicone sealant. Detailed Implementation
[0015] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0016] This utility model proposes a warm-edge insulating glass spacer, including a support body 1, with edge adhesive 2 glued to the left and right sides of the support body 1. The edge adhesive 2 is in direct contact with the glass to glue the support body 1 to the glass. The edge adhesive 2 is a polymer of butyl rubber and polyisobutylene.
[0017] Molecular sieve adhesive 3 is bonded to the surface of the support 1 near the interior of the glass. Molecular sieve adhesive 3 is a composite of a molecular sieve and butyl rubber, with the butyl rubber serving as the carrier adhesive for the molecular sieve. Both sides of the molecular sieve adhesive 3 are in contact with the edge adhesive 2, and the sides of the molecular sieve adhesive 3 and the edge adhesive 2 that are close to each other are inclined, ensuring that the inclined surfaces of the molecular sieve adhesive 3 and the edge adhesive 2 are in contact. The molecular sieve adhesive 3 faces inwards towards the glass, allowing it to contact the air inside the glass and thus absorb moisture and humidity from within.
[0018] The support 1 includes a bent aluminum 11, which is a corrugated aluminum plate; the outside of the bent aluminum 11 is covered with an inner rubber 12, which is also a polymer of butyl rubber and polyisobutylene. The bent aluminum 11 is located at the center of the inner rubber 12, which is rectangular; the inner rubber 12 is also covered with an aluminum-plated film 13, which is an inverted "U" shape and is wrapped upside down on the inner rubber 12.
[0019] The edge adhesive 2 is bonded to the surfaces on both sides of the aluminized film 13, and the molecular sieve adhesive 3 is disposed below the aluminized film 13, and the molecular sieve adhesive 3 is directly bonded to the lower surface of the inner adhesive 12.
[0020] The upper surface of the inner adhesive 12 protrudes from the outer adhesive 2, which in turn causes the upper surface of the aluminized film 13 to also protrude from the outer adhesive 2, so that a third layer of silicone sealant can be applied to the upper surface of the aluminized film 13 to further improve the sealing performance.
[0021] By setting molecular sieve adhesive 3, the moisture inside the glass can be reduced, thereby enabling the glass to meet the dew point requirements. Inner adhesive 12 can play a supporting role, while edge adhesive 2 has better shear force and can prevent adhesive from overflowing.
[0022] refer to Figure 2 The edge adhesive 2 has a butyl rubber body 4 bonded to the side facing away from the inside of the glass. The butyl rubber body 4 is aligned with the aluminized film 13. Silicone sealant 5 is bonded to the outer side of the aluminized film 13 and the butyl rubber body 4, thus forming a triple seal with the edge adhesive 2, the butyl rubber body 4, and the silicone sealant 5. By setting the aluminized film 13, it can serve as an intermediate medium, allowing both the butyl rubber body 4 and the silicone sealant 5 to adhere to the aluminized film 13, ensuring the stability of the adhesion and preventing the adhesive strip from falling off.
[0023] In summary, compared with traditional insulated glass sealing methods, this invention uses edge adhesive 2 to bond with the glass, utilizing the better shear force of edge adhesive 2 to prevent adhesive overflow. Molecular sieve adhesive 3 better absorbs moisture and humidity within the glass wall, while the inner adhesive 12 has high strength and provides excellent support. The spacer strip of this invention effectively isolates the indoor and outdoor environments, preventing moisture and dust from entering the glass, significantly improving the water tightness and air tightness of doors and windows, effectively blocking noise transmission, and reducing the impact of external noise on the interior.
[0024] Especially in multi-cavity profile designs, not only can sound transmission be blocked, but indoor temperature can also be kept stable. By setting multiple layers of different colloids, multiple seals can be achieved, thereby reducing heat transfer and convection of hot and cold air, significantly reducing energy consumption. At the same time, the multi-layer colloid sealing design can also make the window frame more stable, thereby reducing the burden and wear on hardware, reducing the probability of problems such as window falling, and thus extending the service life of doors and windows.
[0025] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0026] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0029] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A spacer strip for warm-edge insulated glass, characterized in that: It includes a support body (1), with edge adhesive (2) on both sides of the support body (1) and molecular sieve adhesive (3) on the side of the support body (1) near the inside of the glass.
2. The warm-edge insulating glass spacer according to claim 1, characterized in that: The support (1) includes bent aluminum (11), the bent aluminum (11) is covered with inner adhesive (12) on the outside, the inner adhesive (12) is covered with aluminum-plated film (13) on the outside, the aluminum-plated film (13) has an inverted "U" shaped cross section, the edge adhesive (2) is disposed on both sides of the aluminum-plated film (13), and the molecular sieve adhesive (3) is disposed below the aluminum-plated film (13).
3. The warm-edge insulating glass spacer strip according to claim 2, characterized in that: The upper surface of the aluminized film (13) protrudes from the edge adhesive (2).
4. The warm-edge insulating glass spacer strip according to claim 3, characterized in that: The edge adhesive (2) is bonded with a butyl rubber body (4) on the side away from the inside of the glass. The butyl rubber body (4) is aligned with the protruding side of the aluminized film (13). The outer sides of the aluminized film (13) and the butyl rubber body (4) are bonded with silicone sealant (5).