JPH0849313A - Fire-resistant packing material - Google Patents

Abstract

PURPOSE:To improve the fire-resistant property, by using a fire-resistant material having elasticity in some extents as a core material and covering the outer periphery of the fire-resistant material with a foaming resin and coating the surface thereof with fluororesin. CONSTITUTION:An elastic and elliptic fire-resistant material 1 is used for a core material as a dry packing material filled in vertical and lateral joints formed by dry wall materials and the outer periphery is coated with a foaming resin 2. A long or short fire-resistant packing material A with a nearly T-shaped section made of the T-shaped foaming resin 2 and fluororesin 3 covering the upper side of the foaming resin 2, is formed. In this way, a fire-resistant packing material provided with weather-resistant and pollution-resistant properties can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention mainly relates to vertical joints formed by dry type wall materials, fire resistance and waterproofness for filling horizontal joints,
The present invention relates to a fireproof packing material that also has weather resistance.

[0002]

2. Description of the Related Art Conventionally, a joint treatment formed by a dry type wall material is a silicone type, polysulfide type moisture curing type, acrylic type, SBR type emulsion dry curing type wet irregular shaped packing material, or foam rubber, It is common to fill the joint with a dry type fixed packing material having elasticity such as polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, and asphalt impregnated polyurethane type.

[0003]

However, in the case of the wet type irregular packing material as described above, it depends on the weather because of the wet type, a curing period is required, and a considerable skill is required for filling. The workability was extremely poor. Further, both of them have weaknesses in weather resistance and fire resistance, especially fire resistance, and particularly in dry wall materials having a fire prevention structure, a quasi fire resistance structure, and a fire resistance structure, improvement in fire resistance performance of joints has been a problem.

[0004]

In order to eliminate such drawbacks, the present invention uses a refractory material having a certain degree of elasticity as a core to improve fire resistance and fire resistance, and to form a foaming material covering the outer periphery of the refractory material. A fire-resistant packing material that has both weather resistance and stain resistance by improving the water resistance, heat insulation, and airtightness of the resin, and coating the surface of the foamable resin that comes into contact with the outside air when filling the joints with fluororesin. Is proposed.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the fireproof packing material A according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view showing a typical example of the refractory packing material A, which comprises a refractory material 1, a foaming resin 2, and a fluororesin 3.

Further, as shown in FIG. 2 which is a partially enlarged view of FIG. 1, the refractory material 1 itself has a certain degree of elasticity and serves as the core of the refractory packing material A. Further, as shown in FIG. 4, after the construction, it is located at the deepest part of the joint and mainly improves the fireproof performance and fireproof performance of the fireproof packing material A, without generating a large amount of toxic gas. It also hinders the progress of combustion. Examples include flame-retardant and non-combustible coatings that are prepared by dissolving alkali silicate in water and adding clay, talc, and other pigments to it, and flame-retardant substances such as casein. Clay, talc, other pigments added to the above aqueous solution, or a mixture of these, oil, varnish, paint, enamel, etc. added to these, phthalic acid resin varnish, vinyl chloride, etc., chlorinated paraffin, etc. Is added, and antimony oxide is further added.

Further, the material for forming the heat insulating layer at the time of combustion is formed by adding foaming raw materials (raw material for fire reaction chemical reaction catalyst, raw material for carbon generation, raw material for non-combustible gas generation), color pigment, film forming resin and the like. It is a thing. Among these, the carbon-producing raw materials are selected from carbohydrates and polyhydric alcohols, and these are carbonized by contact with a flame to form a heat insulating layer. Further, the carbon-producing raw materials have an acid group and produce an inorganic acid and an ester, and the inorganic acid is phosphoric acid. This is generated by thermal decomposition of catalysts and fireproofing agents. Furthermore, as a non-combustible gas generating raw material, dicyandiamide, melamine,
You may mix paraffin chloride etc.

The foaming resin 2 covers at least a part of the outer periphery of the refractory material 1 and contacts the left and right dry type wall materials a as shown in FIG. 4, so that the joints are waterproof, heat insulating and airtight. It is something to add. As its material, polyethylene terephthalate, polyethylene, polypropylene,
Plastic foam resistance consisting of one or more of nylon, cellophane, etc., or composites of these with paper, PVC resin sheet, etc., and further polyvinyl chloride, chloroprene, chlorosulfonated polyethylene, ethylene propylene, asphalt impregnation Polyurethane type, EPM, E
It is made of an elastic foam material such as PDM.

The foaming resin 2 and the refractory material 1 may be bonded by utilizing the self-adhesiveness of the foaming resin 2, but may be bonded by an adhesive 4 as shown in FIG. Is.

Examples of the adhesive 4 include an elastomer type epoxy resin, an isocyanate, for example, an emulsion type such as methylene diisocyanate (abbreviation: MDI), a hot melt type, and a modified isocyanate thereof such as a urethane modified, buret modified isocyanate, isocyanurate. One type such as modified isocyanate is used.

The fluororesin 3 coats the outermost periphery of the refractory packing material A, and as shown in FIG.
It is formed on at least the surface of the foamable resin 2 that comes into contact with the outside air when it is filled in the joints, and imparts water resistance, weather resistance, and stain resistance to the fireproof packing material A. The material may be either a paint type or a film type.

As its component, a vinylidene fluoride homopolymer or a copolymer with vinylidene fluoride copolymerizable monomers such as ethylene fluoride, propylene fluoride, ethylene chlorofluoride vinyl fluoride, etc. Vinylidene fluoride resin consisting of, homopolymer of methyl methacrylate, or polymethylmethacrylate copolymerizable with methyl methacrylate, acrylic rubber, methacrylic acid ester, butyl acrylate, acrylic acid ester,
Styrene, α-methyl styrene, acrylonitrile, acrylic acid, a methacrylic acid ester resin composed of a copolymer with a monomer such as an ethylenically unsaturated monomer as a main component, a transparent to translucent paint form, or It is formed into a film.

Further, in order to improve the weather resistance in the fluororesin 3, an inorganic pigment, an ultraviolet absorber, a pigment dispersant,
A coupling agent or the like can also be included. As shown in FIG. 2, the self-adhesiveness of the fluororesin 3 may be used for the adhesion between the fluororesin 3 and the foamable resin 2. However, particularly in the case of a film, the adhesive 4 is used. To adhere. At this time, an acrylic layer (not shown) may be formed under the fluororesin 3 to improve the adhesive strength.

Further, the shape of the refractory packing material A may be any shape as long as it can fill the joints. For example, as shown in FIGS. 1 and 2, the elliptical refractory material 1 and the upper outer periphery of the refractory material 1 are shown. Is composed of a T-shaped foamable resin 2 and a fluororesin 3 covering the upper side of the foamable resin 2, and is composed of a long body or a short body having a substantially T-shaped cross section as a whole. It has elasticity.

In addition to this, the cross-sectional shape as shown in FIGS. 3 (a) to 3 (h) can be used. In particular, FIGS. 3 (g) and 3 (h) show the side wall of the foamable resin 2 for waterproofing. A plurality of waterproof fins 5 are formed.

FIG. 4 shows an example of using the refractory packing material A. In the figure, a is a dry wall material and b is a wall base made of C-type steel material or the like. Figure 4 (a) shows the left and right drywall materials a.
The vertical joint portion formed by the two is filled with the fireproof packing material A by using elasticity, and FIG. 4B shows the joint sheet c as shown in FIG. Is provided and the refractory packing material A is filled thereon.

[0017]

As described above, according to the fireproof packing material of the present invention, the fireproof material, the fireproof property and the waterproof property are improved by using the fireproof material having a certain elasticity as the core portion.
The foaming resin that covers the outer periphery of the refractory material improves water resistance, heat insulation, and airtightness. By coating a fluororesin on the surface of the foamable resin that comes into contact with the outside air when the joint is filled, a fireproof packing material having both weather resistance and stain resistance is obtained. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a perspective view showing a typical example of a fireproof packing material according to the present invention.

FIG. 2 is an explanatory view showing an enlarged view of the refractory packing material.

FIG. 3 is a sectional view showing another embodiment of the refractory packing material.

FIG. 4 is an explanatory view showing a construction state of the refractory packing material.

FIG. 5 is a perspective view showing an example of a siding plate used in FIG.

[Explanation of symbols]

 A Fireproof packing material 1 Fireproof material 2 Foamable resin 3 Fluorocarbon resin 4 Adhesive 5 Waterproof fin a Dry wall material b Wall base c Clapboard

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location E04B 1/94 LV E04F 13/08 Y 9127-2E

Claims (1)

[Claims] 1. A dry packing material for filling longitudinal joints or horizontal joints formed of dry wall materials with each other, a refractory material having elasticity to some extent, and a foamable resin covering at least a part of the outer periphery of the refractory material. A fire-resistant packing material, characterized in that at least the surface of a foaming resin that comes into contact with the outside air when it is filled in the joint is coated with a fluororesin.