JP5021170B2 - Storage method and sealing method of remaining one-component curable composition after use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for storing one-pack type curable composition left in a can once opened and used so as to enable re-utilization in a state blocked from water and oxygen in the air by simple operation and utilization of apparatus and to provide a sealing method using (effectively utilizing) the stored one-pack type curable composition. <P>SOLUTION: The method for storing an one-pack type curable composition remaining after use comprises transferring the one-pack type curable composition remaining after use in the can body to a container equipped with a discharge port without substantially exposing the composition to the outside air, providing a stopper in the discharge port and sealing the discharge port with the stopper and keeping the composition for a definite period. The sealing method comprises packing the stored one pack curable composition into a joint. <P>COPYRIGHT: (C)2006,JPO&amp;NCIPI

Description

  The present invention relates to a method for storing a one-component curable composition remaining after use for opening so that it can be reused, and a method for using the stored one-component curable composition for sealing work.

  Many sealing materials are used for the purpose of waterproofing, design, and the like on the outer wall joints of building structures and joints of civil engineering structures. These sealing materials prevent the intrusion of rainwater into the structure from the joints between the mortar board, concrete board, ALC board, and the outer wall of metal materials, etc., as well as temperature differences and wind pressure due to earthquakes and solar radiation. Therefore, it is required to alleviate the distortion of the outer wall material caused by the above, to prevent the destruction of the outer wall material, and to not impair the appearance of the outer wall. Furthermore, in addition to the joints between the outer wall members, for example, in a detached house, there is a tool that is attached to the joint joint between members formed on the veranda, roof, entrance, etc., or through the outer wall such as an exhaust port. It is used for sealing materials with outer wall materials, and for so-called useless work where waterproofing is not an important purpose.

  There are many types of these sealing materials such as silicone, polyurethane, modified silicone, polysulfide, etc. There are also one-component moisture-curing type, one-component oxygen-curing type, two-component mixed type, etc. They are supplied in the form of cartridges such as plastic, metal, plastic film, and pail cans. Sealing materials supplied in the form of these cartridge types and pail cans are used in construction sites that are actually used, that is, in detached houses, large buildings, etc. Is dozens, or several cans to tens of cans. In addition, the construction period of the sealing work may be as short as several days to several tens of days. In such a case, the remaining amount of the sealing material is also increased. In the case of a two-component mixed type sealing material, the curing reaction starts immediately after mixing the two components, so even if there is a residual use, the viscosity increases or cures the next day and cannot be used. On the other hand, the one-pack type sealing material can stop the curing reaction by blocking moisture and oxygen, and the remaining sealing material can be used again after the next day. Especially in the case of cartridge containers, even if they are left over, if the nozzles are tightened tightly and sealed so as to cover the nozzles with water permeable, moisture permeable or oxygen permeable aluminum foil, etc. Withstand daily use. In fact, it is seen that the one-pack type cartridge type sealing material is used in this way.

However, for large building structures and civil engineering structures that use a large amount of sealing material, the pail can type is often used rather than the cartridge type because of the merit of the price, and handling of the remaining usage may be a problem. Many (see Patent Documents 1, 2, and 3).
Especially in the case of the pail can type, the curing reaction can be stopped if aluminum foil, etc., which has been adhered to the surface of the sealing material as the inner lid at the time of opening, is adhered again to the remaining sealing material and is shielded from moisture and oxygen. However, compared to the cartridge type, the water and oxygen barrier is insufficient, and the surface of the remaining sealing material is rubberized or thickened, making it difficult to reuse the next day and being discarded. There are many cases. This is a waste of material, and the effective use of the sealing material remaining in the pail can is required in order to effectively use resources.
Japanese Patent Laid-Open No. 2003-335382 JP 2003-160182 A Japanese Patent Laid-Open No. 10-314656

  In the present invention, the one-component curable composition remaining in the can after being opened and used can be used again after being cut off from moisture and oxygen in the atmosphere by simple operation and use of equipment. It is an object of the present invention to provide a method for preserving and a sealing method for using (effectively utilizing) the preserved one-component curable composition.

As a result of intensive studies, the present inventors have found that another container having an outlet that can maintain the quality of the one-component curable composition remaining after use and can be easily reused for sealing work or the like. The present inventors have found that the above-mentioned problems can be solved by transferring to, and have reached the present invention.
That is, the present invention includes the following (1) to (1 8 ).

(1) A one-pack type curable composition remaining after use in a can is sucked with an inhalation-type caulking gun, and the container is provided with a discharge port without substantially exposing the one-pack type curable composition to the outside air After the transfer to, the stopper is installed and sealed at the outlet, and is maintained for a certain period of time, a method for preserving the remaining one-component curable composition after use, the container having the outlet, A cartridge which is substantially impermeable to moisture and / or oxygen in the atmosphere, and which has a discharge port and is loaded with a plunger, and the discharge port is a discharge port of a suction type caulking gun or the cartridge The storage method according to claim 1, wherein the storage method is a discharge port connectable to a connecting device connected to the discharge port.

(2) A container provided with a discharge port without sucking the one-component curable composition remaining in the can after use by an inhalation-type caulking gun and substantially exposing the one-component curable composition to the outside air After the transfer to, the stopper is installed and sealed at the outlet, and is maintained for a certain period of time, a method for preserving the remaining one-component curable composition after use, the container having the outlet, A laminated film pack having a discharge port and substantially impermeable to moisture and / or oxygen in the atmosphere, and the discharge port is connected to a discharge port of a suction type caulking gun or to the discharge port The storage method according to claim 1, wherein the storage method is a discharge port connectable to a device.

(3) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and without substantially exposing the one-component curable composition to the outside air After the transfer to, the stopper is installed and sealed at the outlet, and is maintained for a certain period of time, a method for preserving the remaining one-component curable composition after use, the container having the outlet, A tubular container having a discharge port and substantially impermeable to moisture and / or oxygen in the atmosphere, and the discharge port is connected to a discharge port of a suction type caulking gun or to the discharge port The storage method according to claim 1, wherein the storage method is a discharge port connectable to a device.

(4) The storage method according to any one of (1) to (3), wherein the stopper is a stopper with a sealing nozzle capable of forming a discharge port.

(5) A plug with a sealed nozzle that is provided with a curing prevention film of a detachable one-component curable composition that shuts off outside air from the discharge port of the container and can form a discharge port. The storage method according to any one of (1) to (3).

(6) Any of (1) to (5), wherein the one-component curable composition is a one-component moisture-curable polyurethane-based sealing material or a one-component moisture-curable modified silicone-based sealing material. Preservation method.

(7) A container provided with a discharge port without sucking the one-component curable composition remaining in the can after use by an inhalation-type caulking gun and substantially exposing the one-component curable composition to the outside air After being transferred to, install a stopper at the outlet and store it sealed, then replace the stopper with a nozzle-equipped stopper and fill the joint with the stored one-pack curable composition from the outlet A sealing method comprising at least a step of: a container having the above-mentioned discharge port, which is substantially impermeable to moisture and / or oxygen in the atmosphere, including the discharge port and having a plunger loaded therein The sealing method according to claim 1, wherein the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port.

(8) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and not substantially exposing the one-component curable composition to the outside air After being transferred to, install a stopper at the outlet and store it sealed, then replace the stopper with a nozzle-equipped stopper and fill the joint with the stored one-pack curable composition from the outlet A sealing method, wherein the container provided with the outlet is a laminated film pack provided with the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere, The sealing method is characterized in that the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port.

(9) A container provided with a discharge port without sucking the one-component curable composition remaining in the can after use by an inhalation-type caulking gun and substantially exposing the one-component curable composition to the outside air After being transferred to, install a stopper at the outlet and store it sealed, then replace the stopper with a nozzle-equipped stopper and fill the joint with the stored one-pack curable composition from the outlet A sealing method comprising at least the step of: wherein the container having the discharge port is a tubular container having a discharge port and substantially impermeable to moisture and / or oxygen in the atmosphere, The sealing method is characterized in that the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port.

(10) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and without substantially exposing the one-component curable composition to the outside air After that, the stopper is installed at the discharge port and stored in a sealed state, and then the stopper is replaced with a stopper with a sealing nozzle capable of forming a discharge port, and the discharge port is formed at the sealing nozzle. A sealing method comprising at least a step of filling a storage one-part curable composition from an outlet into a joint, wherein the container having the outlet has a outlet and is loaded with a plunger. In particular, the cartridge is impermeable to moisture and / or oxygen in the atmosphere, and the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port. Characterized in that -Ring method.

(11) A one-component curable composition remaining after use in a can is sucked with an inhalation-type caulking gun, and the container is provided with a discharge port without substantially exposing the one-component curable composition to the outside air After that, the stopper is installed at the discharge port and stored in a sealed state, and then the stopper is replaced with a stopper with a sealing nozzle capable of forming a discharge port, and the discharge port is formed at the sealing nozzle. A sealing method comprising at least a step of filling a joint with a storage one-component curable composition from an outlet, wherein the container provided with the outlet includes the outlet and substantially moisture in the atmosphere and / or Or a laminated film pack impermeable to oxygen, and the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port. The sealing method.

(12) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and not substantially exposing the one-component curable composition to the outside air After that, the stopper is installed at the discharge port and stored in a sealed state, and then the stopper is replaced with a stopper with a sealing nozzle capable of forming a discharge port, and the discharge port is formed at the sealing nozzle. A sealing method comprising at least a step of filling a joint with a storage one-component curable composition from an outlet, wherein the container provided with the outlet includes the outlet and substantially moisture in the atmosphere and / or Or it is a tube-shaped container impermeable to oxygen, and the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port. The sealing method.

(13) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and not substantially exposing the one-component curable composition to the outside air After being transferred to, the plug with a sealed nozzle that can form a discharge port is installed and stored in the discharge port, and then the discharge port is formed in the sealed nozzle and stored from the discharge port. A sealing method comprising at least a step of filling the joint with a sex composition, wherein the container having the discharge port includes a discharge port and a plunger is loaded therein. The cartridge is impermeable to oxygen and the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port. Said sealing method.

(14) A container provided with a discharge port without sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and exposing the one-component curable composition to the outside air substantially After being transferred to, the plug with a sealed nozzle that can form a discharge port is installed and stored in the discharge port, and then the discharge port is formed in the sealed nozzle and stored from the discharge port. A sealing method comprising at least a step of filling the joint with a functional composition, wherein the container having the discharge port includes the discharge port and is substantially impermeable to moisture and / or oxygen in the atmosphere. The sealing method according to claim 1, wherein the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port.

(15) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and without substantially exposing the one-component curable composition to the outside air After being transferred to, the plug with a sealed nozzle that can form a discharge port is installed and stored in the discharge port, and then the discharge port is formed in the sealed nozzle and stored from the discharge port. A sealing method comprising at least a step of filling the joint with a functional composition, wherein the container having the discharge port includes the discharge port and is substantially impermeable to moisture and / or oxygen in the atmosphere. The sealing method, wherein the discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port.

(16) A container provided with a discharge port by sucking the one-part curable composition remaining in the can after use with an inhalation-type caulking gun and not substantially exposing the one-part curable composition to the outside air After being transferred to the container, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and a discharge port is formed at the tip. A plug with a possible sealing nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealing nozzle and a discharge port is formed in the sealed nozzle, and a one-part curable composition stored from the discharge port. A method of sealing comprising at least a step of filling an object with a joint, wherein the container having the discharge port is provided with a discharge port and loaded with a plunger therein. A cartridge that is impervious to oxygen A di, and the sealing method of the outlet, it is the discharge port or outlet connectable to the connecting device which is connected to the discharge port of the suction-type caulking gun, characterized by.

(17) A container provided with a discharge port without sucking the one-component curable composition remaining in the can after use by an inhalation-type caulking gun and substantially exposing the one-component curable composition to the outside air After being transferred to the container, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and a discharge port is formed at the tip. A plug with a possible sealing nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealing nozzle and a discharge port is formed in the sealed nozzle, and a one-part curable composition stored from the discharge port. A sealing method comprising at least a step of filling an article with a joint, wherein the container including the discharge port includes a discharge port and is substantially impermeable to moisture and / or oxygen in the atmosphere. A film pack, and The sealing method of serial outlet, it is the discharge port or outlet connectable to the connecting device which is connected to the discharge port of the suction-type caulking gun, characterized by.

(18) A container provided with a discharge port by sucking the one-component curable composition remaining in the can after use with an inhalation-type caulking gun and without substantially exposing the one-component curable composition to the outside air After being transferred to the container, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and a discharge port is formed at the tip. A plug with a possible sealing nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealing nozzle and a discharge port is formed in the sealed nozzle, and a one-part curable composition stored from the discharge port. A sealing method comprising at least a step of filling an object with a joint, wherein the container having the discharge port includes the discharge port and is substantially impermeable to moisture and / or oxygen in the atmosphere. And the discharge port The sealing method may be characterized in a discharge port or outlet connectable to the connecting device which is connected to the discharge port of the suction-type caulking guns.

  For the first time in accordance with the present invention, the one-part curable composition that has been opened and used once and remains in the can can be used again after being blocked from moisture and oxygen in the atmosphere by simple operation and use of equipment. Thus, it is possible to provide a method for storage and a sealing method for using (effectively utilizing) the stored one-component curable composition. Furthermore, if it is transferred to a container (for refilling), the number of cleanings of the suction type caulking gun can be reduced, and labor saving can be achieved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a drawing showing a procedure for inhaling a one-pack curable composition remaining in a can with an inhalation type caulking gun for waterproofing and sealing in an embodiment of the present invention. FIG. 2 is a plan view of a cartridge as an example of a refill container. FIG. 3 is a plan view of a laminated film pack which is an example of a refill container. FIG. 4 is a plan view of a tubular container that is an example of a refill container.
FIG. 5 is a drawing showing a procedure for connecting a discharge port of a waterproof / sealing suction caulking gun and a discharge port of a refilling container in an embodiment of the present invention. FIG. 6 is a view showing a connection state between a waterproof / sealing suction type caulking gun and a refilling container.

  In the present invention, the one-component curable composition 2 remaining in the can 1 after use is first provided with a discharge port 3 so as not to be substantially exposed to the outside air (for refilling). Transfer to container 4). By doing so, the one-component curable composition 2 remaining in the can 1 can be easily and effectively stored, and does not have to be discarded.

  The one-pack type curable composition 2 in the present invention is one that is sold after being packed in the can body 1 and remains in a usable state after being opened and used once for sealing work or the like. The one-component curable composition 2 may be any one-component curable composition, but may be any one-component moisture-curable polyurethane-based composition or one-component moisture-curable modified silicone. A composition is preferable, and a one-component moisture-curable polyurethane-based sealant or a one-component moisture-curable modified silicone-based sealant is particularly preferable.

  Examples of the can 1 include so-called pail cans such as 4L, 6L, and 12L coated steel plates and metal round cans such as stainless steel, square cans such as 18L oil cans, and polyethylene and polypropylene other than metal. Examples of the pail can and the square can made of synthetic resin.

That is, in the transfer in the present invention, specifically, for example, first, the front cap 6 at the tip of the commercially available waterproof / sealing suction caulking gun 5 used in the sealing work using a pail can is removed, A suction port is inserted so that air is not caught in the one-component curable composition 2 remaining in the can 1.
Next, the suction port is prevented from exiting from the one-pack curable composition 2 (so as not to suck air), the piston rod 9 of the suction-type caulking gun 5 is pulled, and the one-pack type is put into the cylinder 8. The curable composition 2 is sucked.

Next, the suction-type caulking gun 5 is extracted from the remaining one-component curable composition 2, the one-component curable composition 2 adhering to the periphery of the suction port is cleaned, and the removed suction-type caulking gun 5 is removed. The front cap 6 is immediately attached, and the discharge port 7 of the suction type caulking gun 5 is connected to the discharge port 3 of the container 4 (for refilling) provided with the discharge port 3. For connection, the screw groove (male screw) inside the discharge port 7 of the suction type caulking gun 5 is engaged with the screw groove (male screw) outside the discharge port 3 of the container 4 provided with the discharge port 3. The mold caulking gun 5 or the container 4 is rotated and attached (see FIGS. 5 and 6). When the container 4 having the discharge port 7 and the discharge port 3 of the suction-type caulking gun 5 cannot be connected because the diameters do not match, a connecting device that is an accessory of the suction-type coking gun 5 is used. After connecting the suction-type caulking gun 5 and the container 4, the lever 10 of the suction-type caulking gun 5 is pulled, and the one-component curable composition 2 in the cylinder 8 of the suction-type caulking gun 5 is discharged from the discharge port 3 into the container 4. Inject so that no space remains in container 4. By doing so, the remaining one-component curable composition 2 sucked into the suction type caulking gun 5 can be transferred to the container 4 without being substantially exposed to the outside air.
The container 4 provided with the discharge port 3 is specifically a cartridge, a laminate film, or a tube-shaped container (see FIGS. 2 to 4). More specifically, the cartridge is made of a material that is substantially impermeable to moisture and / or oxygen in the atmosphere, has a discharge port, and is loaded with a plunger. Further, it is preferable to use a material that is substantially impermeable to moisture in the atmosphere, has a discharge port, and is loaded with a plunger. Laminate film packs and tube-like containers are also made of a material that is substantially impermeable to moisture and / or oxygen in the atmosphere, and have a discharge port. Further, it is preferably made of a material that is substantially impermeable to moisture in the atmosphere and provided with a discharge port.

  FIG. 7 is a drawing showing a procedure for sealing a container after refilling with a stopper in one embodiment of the present invention. FIG. 8 is a perspective view of a stopper with a sealing nozzle. FIG. 9 is a side sectional view of a plug with a sealing nozzle provided with a curing prevention film.

  Next, in the present invention, after the injection is completed, the connection between the suction type caulking gun 5 and the container 4 is released, and the outlet 3 of the container 4 into which the remaining one-component curable composition 2 has been injected is put in the atmosphere. A plug 11 is attached to prevent moisture and oxygen (see FIG. 7), and is preferably kept (stored) in a cool and dark place where it is not exposed to direct sunlight until it is used for sealing work.

Alternatively, a stopper 12 with a sealing nozzle 13 is installed in the outlet 3 of the transferred container 4 in place of the stopper 11 and sealed to maintain the remaining one-component curable composition 2 as a content for a certain period of time. (store. The plug 12 with the sealing nozzle 13 can form the discharge port 14 of the one-component curable composition 2 at the tip by cutting off the sealing nozzle 13 at an appropriate part (part of the notch 19). is there.
Since the sealing nozzle 13 normally transmits a slight amount of moisture, oxygen, etc., the outside air passing through the sealing nozzle 13 from the outlet 3 of the container 4 is blocked to completely prevent the one-component curable composition 2 from curing. For this purpose, it is particularly preferable to use the stopper 12 with the sealing nozzle 13 provided with the curing prevention film 20. The curing prevention film 20 may be anything as long as it is impermeable to moisture and / or oxygen in the atmosphere, but a laminate made of a plastic film and an aluminum foil or a synthetic resin can be suitably used. It is. The curing prevention film 20 may be detachably disposed inside the stopper 12 with the sealing nozzle 13, or may be fixed by heat fusion, ultrasonic fusion, or an adhesive.

FIG. 10 is a diagram showing a procedure for sealing a cartridge that has been refilled with a stopper and then replacing the stopper with a stopper with a sealing nozzle in an embodiment of the present invention.
FIG. 11 is a diagram showing a procedure for mounting a refilled cartridge on a waterproof / sealing cartridge type caulking gun according to an embodiment of the present invention.
FIG. 12 is a diagram showing a procedure for mounting a refilled laminate film pack on a waterproof / sealing cartridge type caulking gun in one embodiment of the present invention.

Next, the procedure for filling the joints in the sealing method of the present invention will be described.
In the case of using the container 4 (for refilling) in which the one-pack curable composition 2 sealed with the stopper 11 is used, first, the stopper 11 of the container 4 stored after being refilled is removed, and the sealing nozzle 13 is removed. Attached stopper 12 is attached. In order to adjust the discharge amount, according to the joint width, the cutout portion 19 of the attached stopper 12 with the sealing nozzle 13 is cut out with a cutter knife or the like to form the discharge port 14.
The discharge port 14 may be formed before the stopper 12 with the sealing nozzle 13 is attached to the container 4 (for refilling).

In the case of using the container 4 (for refilling) in which the one-component curable composition 2 sealed with the stopper 12 with the sealing nozzle 13 is used, the discharge amount is adjusted in accordance with the joint width in the same manner as described above. Then, the notch 19 of the sealing nozzle 13 of the attached stopper 12 with the sealing nozzle 13 is cut out to form the discharge port 14.
When the stopper 12 with the sealing nozzle 13 includes the anti-curing film 20 inside, the anti-curing film 20 is removed from the sealing nozzle 13 and the notch 19 of the sealing nozzle 13 is cut off in the same manner as described above. Thus, the discharge port 14 is formed.

When the stored container 4 is a cartridge, the cartridge with the stopper 12 with the sealing nozzle 13 is set in a commercially available waterproof / sealing cartridge type caulking gun 15, and the notch 19 of the stopper 12 with the sealing nozzle 13 is inserted. After forming the discharge port 14 by cutting, the one-pack curable composition 2 is discharged by pulling the lever of the gun 15 to fill the joint (see FIG. 11). The discharge port 14 may be formed before the stopper 12 with the sealing nozzle 13 is attached to the cartridge.
When the stored container 4 is a laminated film pack or a tube-shaped container, the one-component curable composition 2 is discharged by grasping with a hand and extruding or winding from the opposite end of the discharge port 3. Fill the joints.
When the laminate film pack 4 ′ is filled as the container 4 (for refilling) using the waterproof / sealing cartridge type caulking gun 15, the laminate film pack 4 ′ is first put into the cylindrical body holder 16. The H-type plunger 17 (Kyokuto Chemix Co., Ltd.) is loaded into the bottom side main body holder 16 of the laminate film pack 4 ', and then the tool cap 18 (Kyokuto Chemix Co., Ltd.) is placed in the outlet 3 side main body holder 16. )) Is used as a presser, and the laminated film pack 4 'is loaded into the cartridge type caulking gun 15 and used for filling the joint (see FIG. 12).
If the container 4 is a cartridge when injecting the remaining one-component curable composition 2 in the container 4 (for refilling), the plunger 17 is inserted and loaded to the tip of the cylindrical body of the container 4 However, if the container 4 (for refilling) is a laminate film pack 4 'or a tube-shaped container, the container 4 is used by removing the air from the container and sealing it. To do. If there is air in the container, the injected one-component curable composition may react to produce a cured product, which is not preferable.

FIG. 13 is a view showing a filling state of joints in the sealing method of one embodiment of the present invention.
The sealing method of the present invention uses the remaining one-component curable composition stored by the method of the present invention to fill joints such as various civil engineering and buildings, and uses a new one-component curable composition. It exhibits a sealing performance that is almost the same as that of the conventional case.
The sealing method of the present invention is exactly the same as the sealing method for joints of various civil engineering and buildings that are generally performed in general, but the residual one-component curing that the sealing material used is stored by the method of the present invention. The only difference is that it is a sex composition.

FIG. 13 is a cross-sectional view showing a construction method for sealing the joint between the pipe 50 and the outer wall 51 after piping to a wall through hole such as an exhaust port. Wall through-holes such as exhaust ports are often generated in the post-installation facility work after the outer wall sealing work is completed, and the sealing method of the present invention is particularly useful for such work.
Specifically, the sealing work of the present invention is performed, for example, by the following procedure.
1. Dust and debris adhering to the through hole and the pipe 50 are removed and cleaned.
2. A backup material 52 is loaded between the tube 50 and the outer wall 51.
3. A masking tape is affixed to both sides of the joint (the pipe 50 side and the outer wall 51 side) (not shown).
4). A primer is applied to the joint 50 and the outer wall 51 (not shown).
5. The joint is filled with the remaining one-component curable composition (sealing material) 2 that has been transferred and stored in the container 4 (for refilling).
6). Hold the spatula.
7). Remove the masking tape immediately.
When the construction is completed, the remaining one-component curable composition (sealing material) used is reaction-cured in a relatively short time, and the gap between the pipe and the outer wall is sealed in the same manner as in the sealing work for ordinary outer wall joints. .

  The sealing method of the present invention is not limited to normal sealing work in which a sealing material is applied to joints, repair work such as a slight amount of sealing material or top coating, and sealing work in places where waterproofing is not the main purpose. It can be applied to construction. The useless work refers to the construction of a few unfinished parts and the repair work of defects and points pointed out by the owner / architect just before the completion of the work. Includes construction of secondary waterproof parts that are not important.

Example 1
The inside of the cartridge (made of plastic film and paper laminate) made of a paper tube (for refilling) with a discharge opening is preliminarily provided with a moisture-proof film, so break it first, and make the metal plunger a paper tube The cartridge was inserted and loaded up to the tip in the cartridge, and prepared as a container (for refilling) having a discharge port.
Next, the 6L metal pail can containing the one-component moisture-curing polyurethane sealant (Auton Siding Sealant, manufactured by Auto Chemical Industry Co., Ltd.) is opened, and the inner lid aluminum is in close contact with the surface of the sealant. The foil was removed. The front cap of the waterproof / sealing suction caulking gun was removed and inserted into the sealing material, and the piston rod was pulled to suck the sealing material into the caulking gun cylinder. After fully sucking into the cylinder, remove the caulking gun from the sealing material, remove the sealing material adhering to the tip of the caulking gun cylinder, attach the removed front cap, and immediately connect the discharge port of the caulking gun to the prepared metal. Connected to the discharge port of the plunger-made paper tube cartridge, the lever of the caulking gun was pulled, and the sealing material sucked into the caulking gun was injected into the paper tube cartridge and refilled. The outlet of the paper tube cartridge was plugged.
Using the paper tube cartridge into which this polyurethane sealant was injected, the appearance and penetration after 5 days and 10 days after the initial stage or after-mentioned promotion were measured and evaluated.
These results are summarized in Table 1.

Example 2
In Example 1, in place of a paper tube (plastic film and paper laminate) cartridge provided with a discharge port, a high-density polyethylene having a discharge port without a moisture-proof film in which a plunger has already been inserted and loaded up to the tip of the cartridge In the same manner except that a cartridge made of (HDPE) was used, the appearance and the penetration after 5 days and 10 days after the initial stage or after-mentioned promotion were measured and evaluated.
These results are summarized in Table 1.

Example 3
In Example 2, instead of the 6L metal pail containing the one-part moisture-curing polyurethane sealant (Auton Siding Sealant, manufactured by Auto Chemical Industry Co., Ltd.), the one-part moisture-curing modified silicone sealant In the same manner except that a 6L metal pail can containing a material (SR seal, manufactured by Sunrise MSI Co., Ltd.) was used, the appearance and penetration after 5 days and 10 days were measured and evaluated as described below. .
These results are summarized in Table 1.

Example 4
In Example 1, a laminate film was wound instead of a paper tube cartridge, and a high-density polyethylene (HDPE) cartridge without a moisture-proof film in which a plunger provided with a discharge port was already inserted and loaded up to the tip of the cartridge was used. In the same manner, the appearance and penetration after 5 days and 10 days after the initial stage or promotion described later were measured and evaluated.
These results are summarized in Table 1.

Example 5
In the same manner as in Example 1, except that a laminated film pack having a discharge port is used instead of a paper tube (plastic film and paper laminate) cartridge having a discharge port, the initial or promotion 5 days described later are used. The appearance and penetration after 10 days were measured and evaluated.
These results are summarized in Table 1.

Comparative Example 1
Using the residual one-pack type moisture curable polyurethane sealant in the 6L metal pail can used for refilling in Example 1, the aluminum foil of the inner lid was brought into close contact with the remaining sealant again, and the metal pail The can was covered. Next, the appearance and penetration of the preserved sealant in the pail can after 5 days and 10 days after the initial stage or promotion described below were measured and evaluated.
These results are summarized in Table 1.

Comparative Example 2
Using the residual one-pack type moisture-curing modified silicone sealant in the 6L metal pail can used for refilling in Example 3, the aluminum foil of the inner lid was brought into close contact with the remaining sealant again, and the metal pail The can was covered. Next, the appearance and penetration of the preserved sealant in the pail can after 5 days and 10 days after the initial stage or promotion described below were measured and evaluated.
These results are summarized in Table 1.

〔performance test〕
The refilled container with the sealing material remaining in the pail can and the pail can with the sealing material remaining are heat-treated in a thermostatic chamber at 50 ° C. and 80% relative humidity for 5 days or 10 days, And the penetration was measured to evaluate the performance (storage stability) of the storage sealing material.
(1) Appearance By visual observation, the case where lumps, thickening, and rubber-like cured products were observed was evaluated as x, and the case where it was not evaluated as ◯.
(2) Needle penetration Based on the penetration test of JIS K2208-1980 petroleum asphalt emulsion, the total weight of the falling part is 12.5 g (needle 2.5 g, needle holder and weight total 10.0 g), measurement time In the same manner except that it was 1 second, after leaving still at 23 ° C. and 50% relative humidity for 12 hours or more, the penetration was measured under the same temperature and humidity condition, and 180 or more was evaluated as ○, and less than 180 was evaluated as ×. did.

Example 6
In Example 2, a one-pack type moisture-curable polyurethane-based sealant (auton siding sealant, autoclaved) stored in a high density polyethylene (HDPE) cartridge for 10 days in a constant temperature and humidity chamber at 50 ° C. and 80% relative humidity. Chemical Industry Co., Ltd.) was filled in the joint between the pipe and the outer wall (ALC) after being piped into the wall through-hole, and the specimen shown in FIG. 13 was prepared, and it was 28 days at 23 ° C. and 50% relative humidity. Cured.
The pipe and outer wall (ALC) are cleaned, masking tape is applied to the pipe and outer wall (ALC) side of the joint, and a primer for siding sealant (manufactured by Auto Chemical Industry Co., Ltd.) is applied. Provided. Also, after filling the joint with a sealing material, the masking tape was removed with a spatula.

[Sealing performance test]
(1) Finished appearance The finished appearance of the joint after curing was visually judged, and x was given when the crumbs, thickening, and rubber-like cured product were seen, and the others were marked with ◯.
(2) Adhesiveness Whether or not the sealing material is easily peeled off by making a cut in the interface between the pipe and sealing material and the outer wall and the sealing material in a part of the joint, and then picking and pulling the sealing material at the notch by hand I investigated. The case where it peeled easily was set as x, and the case where it was not so was set as ○.
These results are summarized in Table 2.

Comparative Example 3
Immediately after opening a new 6L metal pail containing a one-pack type moisture curable polyurethane sealant (Auton Siding Sealant, manufactured by Auto Chemical Industry Co., Ltd.), a tube and an outer wall ( ALC) was filled and cured.
Further, a sealing performance test was conducted in the same manner as in Example 6.
These results are summarized in Table 2.

Comparative Example 4
Open a new 6L metal pail can containing a one-part moisture-curing polyurethane sealant (Auton Siding Sealant, manufactured by Auto Chemical Industry Co., Ltd.), remove about 2/3 of the contents, and then seal The aluminum foil that had been in close contact with the surface of the material was again brought into close contact with a metal lid, and heat treated for 10 days in a constant temperature and humidity chamber at 50 ° C. and 80% relative humidity. After the heat treatment, the sealing material was filled in the joint between the tube and the outer wall in the same manner as in Example 6 and cured.
Further, a sealing performance test was conducted in the same manner as in Example 6.
These results are summarized in Table 2.

表２から、実施例６と比較例３にはシーリング性能に差異がなく、本発明によって、一度開封、使用した残存シーリング材を用いて新品のものと同様に有用なシーリング工事を行えることが判る。

From Table 2, it can be seen that there is no difference in sealing performance between Example 6 and Comparative Example 3, and that according to the present invention, it is possible to perform a useful sealing work in the same manner as a new one using the remaining sealing material once opened and used. .

It is drawing which shows the procedure which inhales the one-pack type curable composition which remains in the can in the Example of this invention with the suction type caulking gun for waterproofing and sealing. It is a top view of the cartridge which is an example of the container for refilling. It is a top view of the laminate film pack which is an example of the container for refilling. It is a top view of the tube-shaped container which is an example of the container for refilling. It is drawing which shows the procedure of the connection of the discharge port of the suction type caulking gun for waterproofing and sealing, and the discharge port of the container for refilling in one Example of this invention. It is drawing which shows the connection state of the suction type caulking gun for waterproofing and sealing, and the container for refilling. It is drawing which shows the procedure which seals the container by which the refill was completed in one Example of this invention with a stopper. It is a perspective view of a stopper with a sealing nozzle. It is a sectional side view of the stopper with a sealing nozzle provided with the hardening prevention film. It is drawing which shows the procedure which seals the cartridge in which refill was completed in one Example of this invention with a stopper, and then replaces a stopper with the stopper with a sealing nozzle. It is drawing which shows the procedure which mounts the refilled cartridge in the cartridge type caulking gun for waterproofing and sealing in one Example of this invention. It is drawing which shows the procedure which mounts the refilled laminated film pack in the cartridge type caulking gun for waterproofing and sealing in one Example of this invention. It is drawing which shows the filling condition to the joint in the sealing method of one Example of this invention.

DESCRIPTION OF SYMBOLS 1 Can body 2 One-component curable composition 3 Discharge port 4 Container provided with the discharge port 4 'Laminate film pack provided with the discharge port 5 Inhalation type caulking gun 6 Front cap of the inhalation type caulking gun 7 Inhalation type caulking gun Discharge port 8 Cylinder of suction type caulking gun 9 Piston rod of suction type caulking gun 10 Lever of suction type caulking gun 11 Cap of container (for refilling) 12 Sealed nozzle plug 13 Sealed nozzle 14 Nozzle discharge port 15 Waterproof / Sealing Cartridge type caulking gun 16 Main body holder 17 H type plunger 18 H type tool cap 19 Notch portion of sealing nozzle 20 Curing prevention film 50 Tube 51 Outer wall 52 Backup material

Claims (18)

The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a method for preserving the remaining one-pack type curable composition after use, which is sealed by installing a stopper at the outlet, and maintaining for a certain period of time,
The container having the outlet is a cartridge substantially impermeable to moisture and / or oxygen in the atmosphere having an outlet and having a plunger loaded therein; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The storage method described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a method for preserving the remaining one-pack type curable composition after use, which is sealed by installing a stopper at the outlet, and maintaining for a certain period of time,
The container having the outlet is a laminated film pack having an outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The storage method described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a method for preserving the remaining one-pack type curable composition after use, which is sealed by installing a stopper at the outlet, and maintaining for a certain period of time,
The container having the outlet is a tubular container having the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The storage method described above. The storage method according to any one of claims 1 to 3, wherein the stopper is a stopper with a sealing nozzle capable of forming a discharge port. The stopper is a stopper with a sealed nozzle that is provided with a curing preventing film of a detachable one-component curable composition that blocks outside air from the discharge port of the container, and can form a discharge port. The storage method according to any one of Items 1 to 3. The storage method according to any one of claims 1 to 5, wherein the one-component curable composition is a one-component moisture-curable polyurethane-based sealing material or a one-component moisture-curable modified silicone-based sealing material. . The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a step of installing a stopper at the outlet and sealingly storing it, and then replacing the stopper with a stopper with a nozzle having a discharge port, filling the joint with the storage one-pack curable composition from the discharge port, A sealing method comprising at least a sealing method,
The container having the outlet is a cartridge substantially impermeable to moisture and / or oxygen in the atmosphere having an outlet and having a plunger loaded therein; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a step of installing a stopper at the outlet and sealingly storing it, and then replacing the stopper with a stopper with a nozzle having a discharge port, filling the joint with the storage one-pack curable composition from the discharge port, A sealing method comprising at least a sealing method,
The container having the outlet is a laminated film pack having an outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a step of installing a stopper at the outlet and sealingly storing it, and then replacing the stopper with a stopper with a nozzle having a discharge port, filling the joint with the storage one-pack curable composition from the discharge port, A sealing method comprising at least a sealing method,
The container having the outlet is a tubular container having the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, install a stopper at the outlet and store it sealed, then replace the stopper with a stopper with a sealing nozzle that can form a discharge outlet, and further form a discharge outlet at the sealing nozzle and store it from the outlet A sealing method comprising at least a step of filling a joint with a one-component curable composition,
The container having the outlet is a cartridge substantially impermeable to moisture and / or oxygen in the atmosphere having an outlet and having a plunger loaded therein; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, install a stopper at the outlet and store it sealed, then replace the stopper with a stopper with a sealing nozzle that can form a discharge outlet, and further form a discharge outlet at the sealing nozzle and store it from the outlet A sealing method comprising at least a step of filling a joint with a one-component curable composition,
The container having the outlet is a laminated film pack having an outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, install a stopper at the outlet and store it sealed, then replace the stopper with a stopper with a sealing nozzle that can form a discharge outlet, and further form a discharge outlet at the sealing nozzle and store it from the outlet A sealing method comprising at least a step of filling a joint with a one-component curable composition,
The container having the outlet is a tubular container having the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a stopper with a sealed nozzle capable of forming a discharge port is installed in the discharge port and stored in a hermetically sealed state, and then a discharge port is formed in the sealed nozzle, and the one-part curable composition stored from the discharge port. A sealing method comprising at least a step of filling the joints,
The container having the outlet is a cartridge substantially impermeable to moisture and / or oxygen in the atmosphere having an outlet and having a plunger loaded therein; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a stopper with a sealed nozzle capable of forming a discharge port is installed in the discharge port and stored in a hermetically sealed state, and then a discharge port is formed in the sealed nozzle, and the one-part curable composition stored from the discharge port. A sealing method comprising at least a step of filling the joints,
The container having the outlet is a laminated film pack having an outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, a stopper with a sealed nozzle capable of forming a discharge port is installed in the discharge port and stored in a hermetically sealed state, and then a discharge port is formed in the sealed nozzle, and the one-part curable composition stored from the discharge port. A sealing method comprising at least a step of filling the joints,
The container having the outlet is a tubular container having the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and the discharge port can be formed at the tip. A stopper with a nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealed nozzle and a discharge port is formed in the sealed nozzle, and the stored one-pack curable composition is sealed from the discharge port. A sealing method comprising at least a step of filling
The container having the outlet is a cartridge substantially impermeable to moisture and / or oxygen in the atmosphere having an outlet and having a plunger loaded therein; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and the discharge port can be formed at the tip. A stopper with a nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealed nozzle and a discharge port is formed in the sealed nozzle, and the stored one-pack curable composition is sealed from the discharge port. A sealing method comprising at least a step of filling
The container having the outlet is a laminated film pack having an outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above. The one-component curable composition remaining after use in the can is sucked with an inhalation-type caulking gun and transferred to a container having a discharge port without substantially exposing the one-component curable composition to the outside air. After that, the discharge port is provided with a curing prevention film of a detachable one-component curable composition so as to block outside air from the discharge port of the container, and the discharge port can be formed at the tip. A stopper with a nozzle is installed and stored in a sealed state, and then the curing prevention film is removed from the stopper with the sealed nozzle and a discharge port is formed in the sealed nozzle, and the stored one-pack curable composition is sealed from the discharge port. A sealing method comprising at least a step of filling
The container having the outlet is a tubular container having the outlet and substantially impermeable to moisture and / or oxygen in the atmosphere; and
The discharge port is a discharge port connectable to a discharge port of a suction type caulking gun or a connecting device connected to the discharge port;
The sealing method as described above.

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