JPH045635Y2 - - Google Patents
Info
- Publication number
- JPH045635Y2 JPH045635Y2 JP11864085U JP11864085U JPH045635Y2 JP H045635 Y2 JPH045635 Y2 JP H045635Y2 JP 11864085 U JP11864085 U JP 11864085U JP 11864085 U JP11864085 U JP 11864085U JP H045635 Y2 JPH045635 Y2 JP H045635Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- base
- holes
- temporary
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000006260 foam Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 13
- -1 polyethylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000178 monomer Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、建物の屋上等の防水下地材に関す
る。[Detailed description of the invention] [Industrial application field] This invention relates to a waterproof base material for the roof of a building, etc.
防水下地材として、合成樹脂発泡シートが用い
られることは周知のことである。そして、この目
的に用いられる合成樹脂発泡シートとして、実公
昭57−30116号公報には、有孔のポリエチレン発
泡断熱板が用いられることが記載されている。
It is well known that a synthetic resin foam sheet is used as a waterproof base material. As a synthetic resin foam sheet used for this purpose, Japanese Utility Model Publication No. 57-30116 describes the use of a perforated polyethylene foam heat insulating board.
この有孔のポリエチレン発泡断熱板は、ポリエ
チレン発泡体の片面に織布ないしは不織布を接着
ラミネートさせたものであつて、熱アスフアルト
を孔からこの発泡体断熱板と下地の間に導いて密
に接着させようとするものである。 This perforated polyethylene foam insulation board is made by laminating a woven or non-woven fabric on one side of polyethylene foam, and hot asphalt is introduced through the holes between the foam insulation board and the substrate to tightly bond it. It is an attempt to do so.
前記の有孔ポリエチレン発泡断熱板について、
実験したところ、熱アスフアルトは孔から下地と
発泡断熱板との間の全体に流れ込むため、下地面
から生ずる水蒸気等の気体の逃げ場がなくなりそ
の圧力でふくれたりして、期待どおりの貼着がで
きない欠点があつた。
Regarding the perforated polyethylene foam insulation board,
In an experiment, it was found that because the hot asphalt flows through the holes into the entire area between the base and the foam insulation board, there is no place for gases such as water vapor generated from the base to escape, and the resulting pressure causes the hot asphalt to swell, making it impossible to adhere as expected. There were flaws.
この考案は上記の欠点を解消しようとするもの
である。 This invention attempts to eliminate the above-mentioned drawbacks.
この考案の防水下地材は、シート表面100cm2当
たり30〜3000個の貫通孔を有する発泡シートの少
なくとも一面の少なくとも前記貫通孔の周囲に仮
着層が形成されてなることを特徴とする。
The waterproof base material of this invention is characterized in that a temporary adhesive layer is formed at least around the through holes on at least one side of a foam sheet having 30 to 3000 through holes per 100 cm 2 of the sheet surface.
この考案においては、貫通孔を有するシートの
少なくとも一面の少なくとも前記貫通孔の周囲に
仮着層が設けられているので、施工すべき下地に
シートを載置した際に少なくとも貫通孔の周囲は
仮着層により下地に仮着される。従つて、シート
上面に形成するウレタン系樹脂等の防水材が防水
層を形成すると同時に貫通孔に流れ込んで下地に
達するが、貫通孔の周囲の仮着部に遮られて下地
材と下地の間には流れ込まない状態でシートは下
地に固着される。仮着層により仮着面はその後下
地より発生する水蒸気等の気体の圧力によつて容
易に剥がれるのでその間の気体はその間〓を通
じ、容易に周囲に逸散するためふくれ等が生じな
い。
In this invention, since a temporary adhesive layer is provided at least around the through holes on at least one side of the sheet having through holes, when the sheet is placed on the base to be applied, at least the area around the through holes is temporarily attached. The adhesive layer temporarily adheres to the base. Therefore, the waterproof material such as urethane resin formed on the top surface of the sheet forms a waterproof layer and at the same time flows into the through hole and reaches the base, but it is blocked by the temporary attachment part around the through hole and flows between the base material and the base. The sheet is fixed to the base without flowing into the base. Due to the temporary bonding layer, the temporary bonding surface is then easily peeled off by the pressure of gas such as water vapor generated from the base, and the gas in between passes through the gap and easily dissipates to the surroundings, so no blistering occurs.
この考案の防水下地材の実施例を図面を参照し
ながら説明する。
An embodiment of the waterproof base material of this invention will be described with reference to the drawings.
１は独立気泡の柔軟性発泡シートであり、貫通
孔２が100cm2当たり30〜3000個の範囲でほぼ等間
隔に穿孔されている。 Reference numeral 1 is a closed-cell flexible foam sheet in which through-holes 2 are perforated at approximately equal intervals in the range of 30 to 3000 per 100 cm 2 .
独立気泡の柔軟性発泡シート１は、ポリエチレ
ン、ポリプロピレン等或いはエチレン、プロピレ
ン等のモノマーと他のモノマーとの共重合体等の
樹脂を主材料とする発泡体シートが用いられ、特
にポリオレフイン系樹脂の架橋発泡体が好適に用
いられる。 The closed-cell flexible foam sheet 1 is a foam sheet whose main material is a resin such as polyethylene, polypropylene, etc. or a copolymer of monomers such as ethylene or propylene with other monomers, and in particular, polyolefin resin. Crosslinked foams are preferably used.
孔の大きさは１〜15mmの径の範囲のものが特に
用いられる。孔径が大き過ぎたり、孔密度が大き
過ぎると発泡シートの強度やクツシヨン性が低下
し、また、孔径及び孔密度が小さいと貫通孔をと
おして下地に接着する効果が小さくいずれの場合
も好ましくない。 In particular, the pore size used is within the diameter range of 1 to 15 mm. If the pore diameter is too large or the pore density is too large, the strength and cushioning properties of the foam sheet will decrease, and if the pore diameter or pore density is small, the effect of adhesion to the substrate through the through-holes will be small, which is undesirable in either case. .
なお、発泡シート１の上面に、補強或いは上面
に塗膜形成するウレタン防水層の密着性向上のた
め、織布、不織布等を貫通孔２を阻害しないよう
に貼着してもよい。 Note that a woven fabric, a nonwoven fabric, or the like may be attached to the upper surface of the foam sheet 1 so as not to obstruct the through holes 2 in order to reinforce it or improve the adhesion of the urethane waterproof layer formed on the upper surface.
そして、このシート１の下地に貼着する面に貫
通孔２の部分を除いて仮着層３が形成されてい
る。この仮着層はシート１を下地に仮着するため
のものであつて、仮着性を有する接着剤、粘着材
が用いられる。例えば、天然ゴム系、クロロプレ
ン系、ニトリル系、アクリル系の接着剤もしくは
粘着剤が、通常の接着あるいは粘着用に使用され
る塗布量より少な目の量、例えば通常100g／m2
の塗布量であればほぼ半分の50g／m2の塗布量に
より仮着層を形成する。 A temporary adhesion layer 3 is formed on the surface of the sheet 1 to be adhered to the base, excluding the portion of the through hole 2. This temporary adhesion layer is for temporarily adhering the sheet 1 to the base, and uses an adhesive or adhesive material having temporary adhesion properties. For example, natural rubber-based, chloroprene-based, nitrile-based, or acrylic adhesives or pressure-sensitive adhesives may be applied in a smaller amount than is normally used for adhesion or adhesion, such as typically 100 g/m 2 .
If the coating amount is 50g/m 2 , the temporary adhesion layer will be formed by approximately half the coating amount, 50g/m 2 .
仮着層３はこの実施例では貫通孔２部分を除く
全面に形成されているが、貫通孔２の周囲部分に
のみ形成されていてもよい。 In this embodiment, the temporary adhesion layer 3 is formed on the entire surface except for the portion of the through hole 2, but it may be formed only on the peripheral portion of the through hole 2.
なお、６は離型シートであり、仮着層３を保護
し、使用に際しては剥がされるものである。 Note that 6 is a release sheet that protects the temporary adhesive layer 3 and is peeled off when used.
この考案の防水下地材は、施工すべき個所の下
地４に敷設され、その上にウレタン塗膜による防
水層５を形成するのであるが、前記作用の欄にお
いて説明したとおり、ウレタン塗膜の形成と同時
にウレタンが貫通孔に流れ込んで発泡シート１が
下地４に固着されるのである。 The waterproof base material of this invention is laid on the base 4 of the area to be constructed, and a waterproof layer 5 made of a urethane coating is formed thereon. At the same time, urethane flows into the through holes and the foamed sheet 1 is fixed to the base 4.
この考案の防水下地材は、有孔の柔軟発泡シー
トに仮着層を設けたので、下地に敷設するにあた
り少なくとも貫通孔の周囲は仮着され、その上面
に形成されるウレタン防水層の塗布と同時にそれ
が貫通孔に流れ込んで下地に達するが、貫通孔の
周囲の仮着部に遮られて下地材と下地の間には流
れ込まない状態でシートは下地に固着される。そ
して仮着層による仮着面はその後下地より発生す
る水蒸気等の気体の圧力によつて容易に剥がれる
のでその間の気体はその間〓を通じ、容易に周囲
に逸散するためふくれ等が生じない。
The waterproof base material of this invention has a temporary adhesive layer on a perforated flexible foam sheet, so when it is laid on the base, at least the area around the through hole is temporarily adhered, and the urethane waterproof layer is applied on the top surface. At the same time, it flows into the through hole and reaches the base material, but the sheet is fixed to the base material without flowing between the base material and the base material because it is blocked by the temporary attachment part around the through hole. The temporary bonding surface formed by the temporary bonding layer is then easily peeled off by the pressure of gas such as water vapor generated from the base, and the gas between the temporary bonding layers passes through the gap and easily dissipates to the surroundings, so that no blistering occurs.
第１図はこの考案の防水下地材の断面図、第２
図はこの考案の防水下地材の施工状態を示す断面
図である。
１……発泡シート、２……貫通孔、３……仮着
層、４……下地、５……防水層。
Figure 1 is a cross-sectional view of the waterproof base material of this invention, Figure 2
The figure is a sectional view showing the construction state of the waterproof base material of this invention. 1...Foam sheet, 2...Through hole, 3...Temporary layer, 4...Base, 5...Waterproof layer.
Claims (1)
有する発泡シートの少なくとも一面の少なくとも
前記貫通孔の周囲に仮着層が形成されてなる防水
下地材。 A waterproof base material comprising a foamed sheet having 30 to 3000 through holes per 100 cm 2 of the sheet surface, and a temporary adhesive layer formed around at least the through holes on at least one side of the foam sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11864085U JPH045635Y2 (en) | 1985-07-31 | 1985-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11864085U JPH045635Y2 (en) | 1985-07-31 | 1985-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6227124U JPS6227124U (en) | 1987-02-19 |
| JPH045635Y2 true JPH045635Y2 (en) | 1992-02-18 |
Family
ID=31005285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11864085U Expired JPH045635Y2 (en) | 1985-07-31 | 1985-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045635Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0722425Y2 (en) * | 1987-05-28 | 1995-05-24 | バンドー化学株式会社 | Deaeration insulation waterproof structure |
-
1985
- 1985-07-31 JP JP11864085U patent/JPH045635Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6227124U (en) | 1987-02-19 |
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