JPS584846Y2 - Cartridge for sealing material - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sealant cartridge, particularly a cartridge containing a sealant that is solid at room temperature. By using the cartridge of the present invention, the application of the sealant is easier than in the past. This is extremely advantageous.

Traditionally, sealants are polysulfide (two-component type)
Urethane (one-component type, two-component type), silicone (one-component type), water-based acrylic (water evaporation type), butyl rubber (solvent evaporation type, heat-melting type), etc. are used, and these are used for curtain walls, foaming, etc. It has been used for sealing joints in concrete and precast concrete, gaps in window frames and buildings, and cracks in concrete and mortar.

The conventional methods for applying these sealants are that the two-component type is mixed in a predetermined amount in advance, and the one-component type is applied using a sealed cartridge, water,
The solvent-volatile type can be applied directly with a sealing gun or cartridge gun.

However, with these conventional methods, the two-component type requires mixing control, pot life, water and solvent volatilization type, volume shrinkage, and the one-component type makes it impossible to reuse sealed products, or it takes a considerable amount of time after construction to harden and achieve performance. There were many shortcomings such as:

The cartridge of the present invention, which contains a solid sealant at room temperature, can be melted and extruded by heating it in an appropriate manner, such as by placing it in a suitable heater. Since it is in a liquid state, by pressing the dispensing tip of the cartridge against the application area and pushing the inner lid toward the dispensing tip, the molten sealant will be reliably and easily embedded in the application area, and it will not be left behind. As the temperature drops to room temperature, the viscosity increases and the mixture returns to a solid state.

Next, the details of the present invention will be explained with reference to the accompanying drawings.

The drawing is a cross-sectional view of the cartridge according to the present invention, and 1 is the cylindrical body of the cartridge.

The cross-sectional shape of the cylinder is not particularly limited as long as it has a constant cross-sectional shape in the longitudinal direction, such as a cylinder or a polygonal cylinder, but a circular cylinder is preferable.

2 indicates an inner lid that fits and slides on this cylinder. Its shape must be similar to the cross-sectional shape of the cylinder, and the degree of fitting with the cylinder is determined by applying molten sealant to the inner lid. It is sufficient that they fit to the extent that no leakage occurs from the fitting part when extruding from the discharge part.

Reference numeral 3 denotes a pointed discharge part, and the cross-sectional shape is not particularly limited as long as it has a small enough cross section to embed the molten sealant depending on the shape of the sealant application area.

One feature of the cartridge according to the present invention is that it is particularly preferable that the tip discharge portion is not obstructed, so that there is no need to open the discharge portion each time it is used.

Furthermore, the cartridge according to the present invention can be cooled after applying a part of the built-in sealant, and then stored as is, and if necessary, heated appropriately during installation to add more sealant. It can be reapplied by extruding it from the tip discharge part.

Of course, even if the cartridge has a structure in which the tip discharge portion is closed in advance, there is no problem since the hole may be opened during use.

4 indicates a sealing material built into the cartridge.

Suitable sealants are those that are solid at room temperature, have been imparted with appropriate plasticity and/or elasticity as required, and that melt when heated to have low viscosity plasticity or fluidity.

An example of such a sealing material is JP-A-51-45
There are heat-sensitive polymer compositions and butyl rubber-based sealing compositions prepared by the polymerization method disclosed in No. 187.

5 is a protrusion provided on the inner surface of the rear part of the cylindrical main body to prevent the inner lid from falling off.

- Appropriate materials such as aluminum, iron and other metals, paper tubes, and plastics such as heat-resistant PVC are used as the material for the cartridge according to the used book invention.

Therefore, the sealant cartridge according to the present invention, which contains a sealant that is solid at room temperature, is extremely easy to implement and can provide excellent sealing effects, which eliminates the drawbacks of conventional sealants. Problems such as curing time, volume shrinkage, pot life, and reuse after sealing are all solved.

This sealant is used in all conventional sealant applications, but can be optimally used for joints in foamed concrete and precast concrete.

[Brief explanation of drawings]

The drawing shows a cross section of a sealant cartridge according to the present invention.

Claims (1)

[Claims for Utility Model Registration] 1゜A sealing material cartridge containing a solid sealing material at room temperature. 2. The sealing material according to claim 1 of the utility model registration claim, which is cylindrical in shape and has an inner lid that fits into the inner wall of the cylinder and is slidable toward the tip discharge portion. Cartridge. , 13. A cartridge for a sealing material as claimed in Claim 2 of the Utility Model Registration, characterized in that the tip discharge portion is not obstructed.