JP3683043B2 - Package for moisture-curing sealant - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging container for moisture-curing sealing material, and more particularly to a packaging container for moisture-curing sealing material that enables efficient removal of the moisture-curing sealing material filled inside the container body. is there.
[0002]
[Prior art]
In general, in order to store and transport a moisture curable sealing material (one-component moisture curable sealing material), it is necessary to strictly prevent moisture. Conventionally, as shown in FIG. 2, a container 1 such as a drum can. A moisture-curing sealing material W is filled therein, and the top surface of the sealing material W is placed on a follower plate (not shown), and the bottom surface of the follower plate is contaminated with the sealing material W when extracted by a pressure pump. In order to prevent or simplify the workability, a hollow disk-like polyethylene plate 3 coated with a sealing member 2 is placed on the peripheral portion, or an aluminum laminate sheet 4 is covered as shown in FIG. And kept it.
[0003]
In addition, 5 is a film affixed to the hollow part 6 of the polyethylene plate 4, 7 is a desiccant, 8 is a plastic sheet interposed in the opening part 1a of the container 1 through the sealing agent 9, and 10 is a container lid. .
[0004]
[Problems to be solved by the invention]
However, in the case of the configuration in which the hollow disk-shaped polyethylene plate 4 is placed as described above, there is no airtightness between the inner bag 2 and the outer peripheral edge of the polyethylene plate 4, and therefore the polyethylene plate 4 changes with time. When the surrounding sealing material W is hardened and extracted by a pump, there is a problem that the follower plate does not descend.
[0005]
Therefore, as shown in FIG. 3, even if the container lid 10 attached to the opening 1a of the container 1 is sealed with an aluminum laminate film, a plastic sheet 8, or the like, the ingress of moisture cannot be completely prevented, and the corner portion At present, the sealing material Wa is cured.
In addition, in order to prevent the follower plate from dropping, it is conceivable to apply petrolatum or the like around the polyethylene plate 4 and seal it, but there is a problem that petrolatum flows at a high temperature, resulting in poor sealing. Furthermore, when sealing with the same material as the sealing material W, the strength of the sealing material W is high and the hardness is generally high as JIS A40 to 50, so the follower plate descends when the sealing material W is extracted. There was a problem that it would disappear.
[0006]
This invention has been devised by paying attention to such a conventional problem, and by using a sealing material having low strength and low hardness, a sealing member applied to the peripheral portion of the resin disk, It is not said that the follower plate will not drop even when the sealing material is extracted with a pressure pump, and the moisture-curing sealing material that enables efficient removal of the moisture-curing sealing material filled in the container body. The object is to provide a packaging container.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention places a resin disc coated with a sealing member on the peripheral portion on the upper surface of a moisture-curing sealing material housed in the container body, and pumps it through a follower plate. When the sealing material in the container body is taken out by the pump, the moisture-curing sealing material packaging container is configured such that the resin disk is lowered along the inner wall surface of the container body. The gist is that the seal member to be applied is a one-component moisture-curing sealant with a cured physical property value of 2 megapascals (MPa) or less and a hardness of JIS A20 or less. It is what.
[0008]
The present invention is configured as described above, and the sealant applied to the peripheral portion of the resin disc is a low-strength and low-hardness sealant, that is, a one-part moisture-curing sealant, If the value of the tensile strength is 2 megapascals (MPa) or less and the hardness is JIS A20 or less, the follower plate will not drop even when the sealing material is extracted by the pump. Needless to say, the moisture-curing sealing material filled in the container body can be efficiently taken out.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.
FIG. 1 is a cross-sectional view of a container main body 1A showing an embodiment of the present invention. The container main body 1A is filled with a moisture-curing sealing material W, and an upper surface of the sealing material W is formed on a peripheral portion. A hollow disc-shaped resin disc 12 (polyethylene plate) coated with a low strength and low hardness physical seal member 11 is placed.
[0010]
The seal member 11 is a one-component moisture-curing sealant, and has a cured physical property value of a tensile strength of 2 megapascals (MPa) or less and a hardness of JIS A20 or less. .
If the sealant has a hardened physical property value of 2 megapascals (MPa) or higher and a hardness of JIS A40 or higher as well as the sealing material W, the sealing material W is extracted by a pressure pump not shown. There is a problem if the follower plate 13 does not descend.
[0011]
Then, as described above, a hollow disc-shaped resin disc in which the seal member 11 having low strength and low hardness is applied to the peripheral portion on the upper surface of the moisture curable sealing material W inside the container body 1A. 12 (polyethylene plate) is placed, and as shown in FIG. 2, the sealing material W is stored in the opening 1 </ b> X of the container 1 by sealing with an aluminum laminate sheet 8 a and a sealing agent 9 through a container lid 10. As a result, the sealing state was good, and the beads of the sealing member 11 were cured, but the sealing material W was not cured at the lower part of the resin disc 12. The storage conditions were 40 ° C., 80% RH, and 1 month.
[0012]
In the embodiment of the present invention, the sealing member 11 applied to the peripheral portion of the resin disk 12 is low-strength and low-hardness as described above, since the sealing material Wx on the lower surface side of the resin disk 12 is not cured. By applying a sealing agent having physical properties, it is possible to effectively prevent the follower plate 13 from being lowered due to the hardening of the sealing member 11 when extracting the sealing material W by a pressure pump as well as the sealing property. The moisture-curing sealing material W filled in the container body 1A can be efficiently taken out.
[0013]
【The invention's effect】
In this invention, as described above, a resin disk coated with a seal member on the periphery is placed on the upper surface of the moisture-curing sealing material housed in the container body, and the container is fed by a pressure pump via a follower plate. When removing the sealing material in the main body, in a packaging container of moisture-curing sealing material configured to lower the resin disk along the inner wall surface of the container body, the resin disk is applied to the peripheral edge of the resin disk. The seal member is a one-component moisture-curing sealant with a cured physical property value of 2 megapascals (MPa) or less and a hardness of JIS A20 or less. Even when extracting the sealing material, the follower plate does not fall down, and the moisture-curing sealing material filled inside the container body can be taken out efficiently. A.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a container body showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a container body in which a conventional hollow disk-like polyethylene plate is placed on a sealing material.
FIG. 3 is a cross-sectional view of a container body in which a conventional aluminum laminate sheet is placed on a sealing material.
[Explanation of symbols]
1A Container body 1X Opening 8a Aluminum laminate sheet 9 Sealing agent 10 Container lid 11 Seal member 12 Resin disc 13 Follower plate W Sealing material

Claims (1)

When a resin disc with a seal member applied to the periphery is placed on the upper surface of a moisture-curing sealing material housed inside the container body, and the sealing material in the container body is taken out by a pressure pump through the follower plate In a packaging container of a moisture-curing sealing material configured to lower the resin disk along the inner wall surface of the container body,
The sealing member to be applied to the peripheral edge of the resin disc is a one-component moisture-curing sealing agent, the cured property value is a tensile strength of 2 megapascals (MPa) or less, and the hardness is a hardness of JIS A20 or less. A packaging container for moisture-curing sealing material, characterized by using the above-mentioned one.

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