JPS6235761Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molded sealant that is used primarily by filling joints in buildings.

In general, molded sealants have a square, rectangular or circular cross section and are configured to have adhesive ability over the entire surface.

Such a sealing material is filled and adhered to the joint portion, and then an irregularly shaped sealing material is poured over this to form a waterproof layer.

However, the molded sealant filled and glued into the joints is subjected to expansion and contraction stress in multiple directions due to the expansion and contraction movements of the panels, pillars, etc. that make up the joints, so it deteriorates over time. However, it had the disadvantage of a short lifespan.

The present invention provides a novel molded sealing material that solves the drawbacks of the prior art, and its implementation will be specifically explained below with reference to the drawings.

In Figures 1 and 2, reference numeral 11 denotes a base consisting of one or more selected from the group of rubber and synthetic resins, and a softener, filler, tackifying resin, vulcanizing agent, anti-aging agent, etc. Pressure-sensitive adhesive rod-shaped sealant 12, 12' is formed by molding a sealant composition made of a blended mixture, and 12 and 12' are tape-shaped products having a surface non-adhesive ability that are stuck to opposing sides of the sealant 11. . The tape-like material 12,1
As the material 2', a plastic film such as polyethylene or polypropylene, paper with a plastic coating formed on the surface, or metal foil can be used.

FIG. 3 is a sectional view showing how the molded sealant 1 of the present invention is used, and one side of the tape-like material 12 is placed inward at the joint A formed by the panels 2 and 2'. Filled with molded sealant 1,
It is glued to panels 2, 2'. Reference numeral 3 denotes a known irregularly shaped sealing material that is implanted onto the surface of the molded sealing material 1 via a tape-like material 12'.

In the waterproof joint section configured in this way, the filled molded sealant adheres only to the panels 2, 2', and the inner wall A' of the joint section and the irregularly shaped sealant 3.
is not adhered to. Therefore, the stress applied to the molded sealant due to the expansion and contraction behavior of the panel is
Since stress is applied only from a pair of opposing directions and stress is not applied from multiple directions as in the case of conventional full-surface bonding, it has the characteristic that the molded sealant is less likely to deteriorate and can have a longer lifespan.

Although not shown, the width of the tape-like materials 12, 12' in the example of FIG.
The width of the molded sealant is made as wide as possible, and when it is filled into the joint, it is bent toward the adhesive side to minimize the adhesive area between the panel and the molded sealant, thereby reducing the stress applied to the molded sealant. death,
It can also extend its lifespan.

The molded sealant of the present invention can also be used when a back-up material is attached to the joint in advance, and in this case, the tape-like material also has the function of preventing the sealant and the back-up material from adhering.

[Brief description of the drawings]

Fig. 1 is a partial perspective view showing an example of the present invention;
The figure is a cross-sectional view showing another example, and FIG. 3 is a cross-sectional view showing how the molded sealant of the present invention is used. 11... Rod-shaped sealing material, 12, 12'...
tape-like material.

Claims (1)

[Scope of utility model registration request] 1. A molded sealing material comprising a pressure-sensitive adhesive rod-shaped sealing material having a square, rectangular or circular cross section and a tape-like material having surface non-adhesive ability affixed to opposing sides.