JP2000108229A - Glassy aggregate-mounted sheet and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve storage stability and facilitate manufacture of a glassy aggregate-mounted sheet. SOLUTION: An adhesive layer 2 composed of a hot melt adhesive containing a styrene/butadiene/styrene block copolymer as a main component is provided on a sheet substrate 1 composed of a polyester film having a thickness of 50-100 μm. Glassy aggregates 4 for decoration, which are subjected to hydrophobic treatment with a hydrophobic treating agent composed of a silane coupling agent having epoxy groups on the surface, are partially buried in the adhesive layer 2 of an adhering sheet 3, and the glassy aggregates 4 are fixed to the adhesive layer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vitreous aggregate-mounted sheet used for exposing aggregates such as concrete for landscape decoration and a method for producing the same.

[0002]

2. Description of the Related Art A method generally called a washing method is used to expose and finish aggregates of concrete for landscape decoration. As this washing method, a method of driving a mortar into which a decorative aggregate, that is, a seed stone has been kneaded, on a concrete base, and rinsing the mortar on the surface while the mortar is in a semi-hardened state to expose a part of the aggregate, After driving the mortar into which the aggregate is kneaded, spray a surface hardening retarder on the mortar surface, or delay the hardening of the mortar surface by such means as coating a hardening delay sheet on the surface, and harden only the inside of the mortar And a method of washing away the uncured surface layer to expose a part of the aggregate.

[0003] In the washing method, however, a large amount of water must be used to wash the mortar, so that a large amount of inorganic substances including heavy metals must be treated, and expensive seed stones, that is, aggregates must be used more than necessary. However, there is a problem that it requires a long time and advanced technology to perform the aggregate pattern exposure finish of a complicated pattern.

[0004] Under such circumstances, a method of exposing aggregate of landscape decoration concrete without washing out with water, that is, a method of exposing aggregate of landscape decoration concrete by dry method (for example, And a method disclosed in JP-A-6-134907). This method comprises providing an adhesive layer on a sheet-like support to form an adhesive sheet, embedding a part of the decorative aggregate in the adhesive layer, and fixing the aggregate to the adhesive layer. After the mortar has hardened, the adhesive sheet is peeled off from the mortar, and the aggregate mounting sheet is placed on the surface of the mortar that has been driven in. The aggregate is exposed.

[0005]

However, in the method using the aggregate mounting sheet, it can be used without any problem when the decorative aggregate is ordinary natural stone or the like, but the decorative aggregate is made of glassy bone. As for the aggregate-loaded sheet, ie, the vitreous aggregate-loaded sheet, which is the aggregate, since the vitreous aggregate has a high affinity for moisture, the adhesiveness to the adhesive layer is reduced by the moisture absorption of the vitreous aggregate. Therefore, the vitreous aggregate may fall off from the adhesive sheet during storage of the vitreous aggregate-mounted sheet, and the storage stability is not good.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a vitreous aggregate-mounted sheet having good storage stability and a vitreous bone capable of easily producing a vitreous-aggregate mounted sheet. An object of the present invention is to provide a method for manufacturing a material mounting sheet.

[0007]

In order to achieve this object, in the present invention, an adhesive layer is provided on a sheet-like support in a vitreous aggregate mounting sheet, and a hydrophobic treatment is provided in the adhesive layer. A part of the vitreous aggregate thus obtained is buried and the vitreous aggregate is fixed to the adhesive layer.

In this case, the adhesive layer is made of a hot-melt adhesive.

Further, the vitreous aggregate-mounted sheet is formed into a roll shape.

Further, a support plate is lined with the sheet-like support.

In the method for producing a vitreous aggregate-mounted sheet, a step of providing an adhesive layer on a sheet-like support, a step of attaching a hydrophobized vitreous aggregate to the adhesive layer, Burying a part of the vitreous aggregate in the adhesive layer by at least one of heating and pressing.

In this case, the vitreous aggregate is subjected to a hydrophobic treatment using a silane coupling agent having an epoxy group, a vinyl group, an acryloyloxy group or a methacryloyloxy group.

[0013]

FIG. 1 is a schematic sectional view showing a part of a vitreous aggregate mounting sheet according to the present invention. As shown in the figure, an adhesive layer 2 made of a hot-melt adhesive mainly composed of a styrene / butadiene / styrene block copolymer is provided on a sheet-like support 1 made of a polyester film having a thickness of 50 to 100 μm. The adhesive sheet 3 is constituted by the sheet-like support 1 and the adhesive layer 2, and the surface is hydrophobized by a hydrophobizing agent comprising a silane coupling agent having an epoxy group in the adhesive layer 2 of the adhesive sheet 3. Part of the treated decorative vitreous aggregate 4 is buried and the vitreous aggregate 4 is fixed to the adhesive layer 2.

When the aggregate of the concrete for landscape decoration is exposed and finished using the glassy aggregate mounting sheet, it is not necessary to wash the mortar with a large amount of water, so that the exposed aggregate can be easily performed. . In addition, since the surface of the vitreous aggregate 4 is subjected to the hydrophobic treatment, the vitreous aggregate 4 does not absorb moisture, so that the adhesiveness between the vitreous aggregate 4 and the adhesive layer 2 (moisture resistance). Is not reduced, and the vitreous aggregate 4 does not fall off from the adhesive sheet 3, so that the storage stability is good. Further, since the adhesive layer 2 made of an adhesive based on styrene / butadiene / styrene block copolymer is provided, the adhesive strength of the adhesive layer 2 is sufficient to fix the vitreous aggregate 4. Adhesive sheet 3 made of mortar and having strength
Can be easily peeled off, and the adhesive layer 2 has flexibility.
Even if subjected to various deformations during transportation or use, 9
It can follow about 0 degree bending. Further, since the vitreous aggregate 4 whose surface is hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an epoxy group is used, the hydrophobized surface of the vitreous aggregate 4 comes into contact with the mortar. When the adhesive sheet 3 is peeled off from the mortar, the vitreous aggregate 4 does not fall out of the mortar when the adhesive sheet 3 is peeled off from the mortar. Further, an adhesive layer 2 made of a hot-melt adhesive mainly containing a styrene / butadiene / styrene block copolymer is provided on a sheet-like support 1 made of a polyester film having a thickness of 50 to 100 μm. Since the vitreous aggregate mounting sheet is flexible and deformable, the form of the product can be changed in various ways, it can be applied to various constructions, and the concrete aggregate exposed finish at construction sites with curved surfaces etc. It can be done easily.

Next, a method of manufacturing the vitreous aggregate mounting sheet shown in FIG. 1, that is, a method of manufacturing the vitreous aggregate mounting sheet according to the present invention will be described with reference to FIG. First, as shown in FIG.
An adhesive layer 2 is provided by applying a hot melt adhesive having a butadiene / styrene block copolymer as a main component,
An adhesive sheet 3 is produced. Next, as shown in FIG. 2B, a vitreous aggregate whose surface has been hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an epoxy group on the adhesive layer 2 of the adhesive sheet 3 in advance. 4 is sprinkled to adhere the vitreous aggregate 4 onto the adhesive layer 2. Next, FIG.
As shown in (c), a part of the vitreous aggregate 4 is buried in the adhesive layer 2 by heating, and the vitreous aggregate 4 is fixed to the adhesive layer 2. In this case, the adhesive layer 2 is softened by heating, and the vitreous aggregate 4 sinks into the adhesive layer 2 by its own weight.

In this method for manufacturing a vitreous aggregate mounting sheet, the vitreous aggregate mounting sheet can be easily manufactured because the vitreous aggregate 4 can be easily fixed to the adhesive layer 2. . Further, since the surface of the vitreous aggregate 4 is hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an epoxy group, the hydrophobized surface of the vitreous aggregate 4 touches the mortar. Sometimes, hardening of the mortar is not inhibited, so that the vitreous aggregate 4 does not fall off the mortar when the adhesive sheet 3 is peeled off from the mortar, and there is no product failure.

In the above embodiment, the sheet-like support 1 made of a polyester film is used.
The sheet-like support is preferably a flexible one,
Plastic films, cloths, papers, non-woven fabrics, etc. can be used. Among them, polyester, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polystyrene, polyvinyl acetate, etc. The plastic film made of the general-purpose organic polymer compound is preferable. Further, in the above-described embodiment, the sheet-like support 1 having a thickness of 50 to 100 μm is used, but the thickness of the sheet-like support is preferably tens to hundreds of μm, and more preferably 20 to 150 μm. Is more preferred.

In the above-described embodiment, the adhesive layer 2 made of a hot-melt adhesive is provided. However, the hot-melt adhesive has a composition having a certain surface tack (adhesiveness). Are preferred. In addition, the thickness of the adhesive layer depends on the size of the vitreous aggregate, but is 0.1%.
It is preferably set to 1.0 mm.

Examples of the vitreous aggregate 4 include glass beads, various glass particles using glass waste material, vitreous natural stones such as sazare stone, and glass functional particles such as frosted balls (manufactured by Roman Cement Research Institute). Can be used. In addition, it is preferable to use a vitreous aggregate having a particle size of 1 to 10 mm. It is desirable to use the vitreous aggregate of the above. Further, not only a single kind of glassy aggregate but also a mixture of plural kinds of materials may be used.

In the above-described embodiment, the vitreous aggregate 4 whose surface has been hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an epoxy group has been used. It is preferable to use a vitreous aggregate whose surface is hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an acryloyloxy group or a methacryloyloxy group, and a hydrophobizing treatment comprising a silane coupling agent having an epoxy group. It is best to use a vitreous aggregate whose surface has been hydrophobized with an agent. On the other hand, for example, a vitreous aggregate whose surface has been hydrophobized with a hydrophobizing agent such as a silane coupling agent having an amino group may cause mortar hardening inhibition depending on the type of mortar, and In addition, a large force is required when peeling the adhesive sheet 3 from the mortar after the mortar is cured, which is often not preferable. Preferably, 0.1 to 5.0% by weight of the silane coupling agent.
The vitreous aggregate is sufficiently immersed in an alcohol solution, more preferably a 0.5 to 1.0% by weight ethyl alcohol solution of a silane coupling agent.
A vitreous aggregate that has been subjected to a hydrophobizing treatment by heating for up to 60 minutes can be used. Further, the thickness of the treatment layer for the hydrophobizing treatment of the vitreous aggregate 4 is preferably 0.01 to 10 μm, more preferably 0.1 to 2 μm.

Further, the vitreous aggregate mounting sheet is flat,
It can be finished in various forms such as a rolled shape, and when the vitreous aggregate-mounted sheet is formed into a rolled shape, handling of the vitreous aggregate-mounted sheet can be facilitated. Further, when a hard support plate such as a veneer plate is lined with a sheet-like support, handling of the vitreous aggregate-mounted sheet can be facilitated.

In the above-described embodiment, the surface of the vitreous aggregate 4 is hydrophobized with a hydrophobizing agent comprising a silane coupling agent having an epoxy group. However, the surface of the vitreous aggregate is hydrophobized. Examples of the hydrophobizing agent used in the treatment include γ-glycidoxypropyltrimethoxysilane (for example, KBM403 manufactured by Shin-Etsu Chemical Co., Ltd.), β- (3,
4-epoxycyclohexyl) ethyltrimethoxysilane (for example, Shin-Etsu Chemical KBM303), γ-glycidoxypropylmethyldiethoxysilane (for example, Shin-Etsu Chemical KBM402), γ-methacryloxypropyltrimethoxysilane (for example, Shin-Etsu Chemical KB
M503), vinyltrimethoxysilane (for example, KBM1003 manufactured by Shin-Etsu Chemical Co., Ltd.), vinyltriethoxysilane (for example, KBE1003 manufactured by Shin-Etsu Chemical Co., Ltd.), and vinyltris (β-methoxyethoxy) silane (for example, KBC1003 manufactured by Shin-Etsu Chemical Co., Ltd.) A silane coupling agent having an epoxy group, a vinyl group, an acryloyloxy group or a methacryloyloxy group is preferred, and among them, a silane coupling agent having an epoxy group is characteristically the best as a hydrophobizing agent. However, the hydrophobizing agent is not limited to the compounds described here. On the other hand, among the silane coupling agents, a silane coupling agent having an amino group such as N-β-aminoethyl and γ-aminopropyltrimethoxysilane (for example, KBM603 manufactured by Shin-Etsu Chemical Co., Ltd.) is used as a vitreous aggregate. When the hydrophobizing treatment is performed, the adhesiveness of the vitreous aggregate 4 to the adhesive sheet is good, but depending on the type of mortar, the curing of the mortar may be inhibited. It is not preferable to use a silane coupling agent having When the surface of the vitreous aggregate is subjected to a hydrophobic treatment using a silane coupling agent as a hydrophobic treatment agent, it is preferable to use a 0.1 to 5.0% by weight alcohol solution of the silane coupling agent in advance. Preferably, a 0.5 to 1.0% by weight ethyl alcohol solution of a silane coupling agent is prepared, the vitreous aggregate is sufficiently immersed in this solution, and then heated at 100 to 150 ° C. for 10 to 60 minutes. .

In the above embodiment, the vitreous aggregate 4 is sprinkled on the adhesive layer 2 so that the vitreous aggregate 4
Was adhered on the adhesive layer 2, but the vitreous aggregate may be adhered on the adhesive layer by arranging the vitreous aggregate on the adhesive layer in a desired pattern.

In the above-described embodiment, a part of the vitreous aggregate 4 is buried in the adhesive layer 2 by heating, but a part of the vitreous aggregate is bonded by at least one of heating and pressing. Can be buried in the agent layer. Also, since the degree of embedding of the vitreous aggregate in the adhesive layer depends on the adhesive properties, thickness, heating temperature, heating time, etc. of the adhesive layer,
By properly selecting these factors, a desired vitreous aggregate-carrying sheet can be produced.

[0025]

(Example 1) Industrial glass beads having a particle size of 4 to 7 mm were immersed in a 1% by weight ethyl alcohol solution of γ-glycidoxypropyltrimethoxysilane (KBM403 manufactured by Shin-Etsu Chemical Co., Ltd.) for about 1 hour. After removing the solution from the glass beads, the glass beads were dried at 120 ° C. for 30 minutes to obtain a vitreous aggregate 4 whose surface was subjected to a hydrophobic treatment. Next, thickness 5
An adhesive layer 2 made of a hot-melt adhesive having a styrene / butadiene / styrene block copolymer as a main component and having a thickness of about 0.6 mm is provided on a sheet-like support 1 made of a 0 μm polyester film by coating. , Adhesive layer 2
A predetermined amount of the hydrophobized vitreous aggregate 4 is sprinkled on the adhesive layer, and the vitreous aggregate 4 is attached to the adhesive layer 2.
By heating at 40 ° C. for 30 minutes, the vitreous aggregate 4
Was embedded in the adhesive layer 2 and the vitreous aggregate 4 was fixed to the adhesive layer 2 to produce a vitreous aggregate mounting sheet.

The adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH (relative humidity) for about one month. Of the vitreous aggregate 4 is 0.1% or less when left in a normal state and 0.3% when left at 50 ° C./90% RH.
The results were as follows, and preferable results were obtained.

Further, the vitreous aggregate-mounted sheet is placed on the surface of a mortar which is driven with the surface on which the vitreous aggregate 4 is fixed down, left at 60 ° C. for one day and night, and cured.
After the mortar was hardened, the adhesive sheet 3 was peeled off from the mortar hardened surface, and the aggregate of the concrete for landscape decoration was exposed and finished.
The adhesive sheet 3 could be easily peeled off, and a good aggregate exposed finish of the concrete for landscape decoration could be performed.

Example 2 The procedure was performed except that frosted balls were used as the vitreous aggregate 4 and β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (KBM303 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as the hydrophobizing agent. In the same manner as in Example 1, a vitreous aggregate-mounted sheet was produced.

After leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month, the adhesive sheet 3 was shaken about ten times.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Below, 0.2% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Example 3 A frosted ball was used as the vitreous aggregate 4 and γ-glycidoxypropylmethyldiethoxysilane (KB made by Shin-Etsu Chemical Co., Ltd.) was used as a hydrophobizing agent.
A glassy aggregate mounting sheet was produced in the same manner as in Example 1 except that M402) was used.

After leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month, the adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times is used.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Below, 0.2% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Example 4 A vitreous aggregate-mounted sheet was prepared in the same manner as in Example 1 except that γ-methacryloxypropyltrimethoxysilane (KBM503 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as the hydrophobizing agent.

The adhesive sheet 3 is obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month.
The rate of shedding of vitreous aggregate 4 from soil is 0.3%
Hereinafter, it is 1.0% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Example 5 A vitreous aggregate-mounted sheet was produced in the same manner as in Example 1 except that vinyltrimethoxysilane (KBM1003 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as the hydrophobizing agent.

The adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month.
The rate of shedding of vitreous aggregate 4 from soil is 0.3%
Hereinafter, it is 1.0% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Example 6 As a hydrophobizing agent, β-
A sheet with a vitreous aggregate was prepared in the same manner as in Example 1 except that (3,4-epoxycyclohexyl) ethyltrimethoxysilane (KBM303 manufactured by Shin-Etsu Chemical Co., Ltd.) was used.

The adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Below, 0.2% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Example 7 A vitreous aggregate-mounted sheet was prepared in the same manner as in Example 1 except that γ-glycidoxypropylmethyldiethoxysilane (KBM402 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as a hydrophobizing agent. did.

The adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Hereinafter, it was 0.3% or less when left at RH, and a favorable result was obtained.

(Example 8) Shale stone was used as the vitreous aggregate 4 and γ-glycidoxypropylmethyldiethoxysilane (KBM40 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as a hydrophobizing agent.
Except using 2), it carried out similarly to Example 1, and produced the vitreous-aggregate mounting sheet.

The adhesive sheet 3 obtained by shaking the vitreous aggregate-mounted sheet about 10 times after leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Below, 0.3% or less when left at 50 ° C./90% RH;
Favorable results were obtained.

Example 9 The procedure was carried out except that shale stone was used as the vitreous aggregate 4 and β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane (KBM303 manufactured by Shin-Etsu Chemical Co., Ltd.) was used as the hydrophobizing agent. In the same manner as in Example 1, a vitreous aggregate-mounted sheet was produced.

After leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month, the adhesive sheet 3 was obtained by shaking the vitreous aggregate-mounted sheet about 10 times.
The rate of shedding of vitreous aggregate 4 from soil is 0.1%
Below, 0.2% or less when left at 50 ° C./90% RH,
Favorable results were obtained.

Further, the vitreous aggregate mounting sheets of Examples 2 to 9 were placed on the surface of a mortar which was driven in with the surface to which the vitreous aggregate 4 was fixed facing down, and left at 60 ° C. for 24 hours. After curing and curing of the mortar, the adhesive sheet 3 was peeled off from the cured mortar surface, and the aggregate of the concrete for landscape decoration was exposed, but the vitreous aggregate 4 did not fall off the mortar. The peeling could be easily performed, and the aggregate of the concrete for landscape decoration was exposed well.

(Comparative Example 1) A styrene / butadiene / styrene block copolymer having a thickness of about 0.6 mm, in which glass beads not subjected to a hydrophobizing treatment were coated on a polyester film having a thickness of 50 μm. Sprinkle a predetermined amount on the adhesive layer made of hot melt adhesive,
For 30 minutes, the glass beads were partially buried in the adhesive layer, and the glass beads were fixed to the adhesive layer to produce a vitreous aggregate-mounted sheet.

The vitreous aggregate-mounted sheet was allowed to stand in a normal state and at 50 ° C./90% RH. However, when the vitreous aggregate-mounted sheet was shaken about 10 times after about one week, the sheet was 90% or more. Glass beads fall off from the adhesive sheet, and if left at 50 ° C./90% RH, after shaking the vitreous aggregate-mounted sheet about 10 times one day later, 90% or more of the glass beads fall off from the adhesive sheet and become practical. It could not be provided.

(Comparative Example 2) Industrial glass beads having a particle diameter of 4 to 7 mm were added to a 1% by weight ethyl alcohol solution of N-β (aminoethyl) γ-aminopropyltrimethoxysilane (KBM603 manufactured by Shin-Etsu Chemical Co., Ltd.). After immersion for a period of time and removing the solution from the glass beads, the glass beads were dried at 120 ° C. for 30 minutes to obtain glass beads subjected to a hydrophobic treatment. The glass beads were coated on a polyester film having a thickness of 50 μm to form a styrene / butadiene /
Sprinkle a predetermined amount onto an adhesive layer composed of a hot melt adhesive containing a styrene block copolymer as a main component.
By heating at 0 ° C. for 30 minutes, a part of the glass beads was buried in the adhesive layer, and the glass beads were fixed to the adhesive layer to produce a vitreous aggregate mounting sheet.

After leaving the vitreous aggregate-mounted sheet under normal conditions and at 50 ° C./90% RH for about one month, the glass beads from the adhesive sheet were shaken about 10 times when the vitreous aggregate-mounted sheet was shaken about 10 times. The shedding rate was 0.1% or less when left in a normal state, and 0.2% or less when left at 50 ° C./90% RH.

However, this vitreous aggregate-mounted sheet was placed on the surface of a mortar that had been driven in with the glass bead fixed side down, left at 60 ° C. for 24 hours, and cured.
After the mortar was hardened, the adhesive sheet was peeled off from the mortar hardened surface to finish the aggregate of the concrete for landscape decoration, but many glass beads fell off the mortar and the adhesive sheet was easily peeled off. It could not be performed, and it was not possible to perform a favorable aggregate finish exposure of landscape decoration concrete.

[0050]

As described above, in the vitreous aggregate-mounted sheet according to the present invention, since the vitreous aggregate does not absorb moisture, the adhesion between the vitreous aggregate and the adhesive layer is reduced. Since the vitreous aggregate does not fall off from the adhesive sheet, the storage stability is good.

When a hot-melt adhesive is used as the adhesive layer, the adhesive strength of the adhesive layer is sufficient to fix the vitreous aggregate, and the adhesive sheet is easily peeled off. Can be performed.

When formed into a roll,
The handling of the vitreous aggregate-mounted sheet can be facilitated.

When the support plate is lined with a sheet-like support, the handling of the vitreous aggregate-mounted sheet can be facilitated.

In the method for manufacturing a vitreous aggregate-mounted sheet according to the present invention, the vitreous aggregate-mounted sheet can be easily manufactured because the vitreous aggregate can be easily fixed to the adhesive layer. be able to.

Further, when the vitreous aggregate is hydrophobized using a silane coupling agent having an epoxy group, a vinyl group, an acryloyloxy group or a methacryloyloxy group, the hydrophobized surface of the vitreous aggregate becomes Since the hardening of the mortar is not inhibited when the mortar is touched, the vitreous aggregate does not fall off the mortar when the adhesive sheet is peeled from the mortar.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a part of a vitreous aggregate mounting sheet according to the present invention.

FIG. 2 is an explanatory view of a method for manufacturing a vitreous aggregate-mounted sheet according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Sheet-like support body 2 ... Adhesive layer 4 ... Vitreous aggregate

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) E04F 13/08 E04F 13/08 F (72) Inventor Kazuo Nate 3819 Nototo, Tama-ku, Kawasaki-shi, Kanagawa Stock Company F-term in Sliontec (reference) 2E110 AA50 BA02 BA11 BB09 EA09 GA32X GA42X GA43W GB13W GB32W GB43X GB45X GB52X GB63X 4F100 AG00B AH06B AK12 AK29 AK41 AL02 AR00C AT00A BA02 BA03 BA07 BA10E04 GBB EB03B03 EB03B04 EB03B04 CB03E FA03

Claims (6)

[Claims] An adhesive layer is provided on a sheet-like support, and a part of a hydrophobized vitreous aggregate is buried in the adhesive layer so that the vitreous aggregate is embedded in the adhesive layer. A vitreous aggregate-mounted sheet characterized by being fixed. 2. The vitreous aggregate-mounted sheet according to claim 1, wherein the adhesive layer is made of a hot-melt adhesive. 3. The vitreous aggregate-mounted sheet according to claim 1, wherein the sheet is formed in a roll winding shape. 4. The vitreous aggregate-mounted sheet according to claim 1, wherein a support plate is lined with the sheet-shaped support. 5. A step of providing an adhesive layer on a sheet-like support, a step of attaching a hydrophobized vitreous aggregate to the adhesive layer, and heating and / or pressurizing the vitreous aggregate. Burying a part of the aggregate in the adhesive layer. 6. The vitreous material according to claim 5, wherein the vitreous aggregate is subjected to a hydrophobic treatment using a silane coupling agent having an epoxy group, a vinyl group, an acryloyloxy group or a methacryloyloxy group. Manufacturing method of aggregate mounting sheet.