JPS6145533B2 - - Google Patents
Info
- Publication number
- JPS6145533B2 JPS6145533B2 JP54076357A JP7635779A JPS6145533B2 JP S6145533 B2 JPS6145533 B2 JP S6145533B2 JP 54076357 A JP54076357 A JP 54076357A JP 7635779 A JP7635779 A JP 7635779A JP S6145533 B2 JPS6145533 B2 JP S6145533B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- asphalt
- modified asphalt
- waterproof
- liquid polybutadiene
- 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
- 239000010426 asphalt Substances 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 12
- 239000005062 Polybutadiene Substances 0.000 claims description 11
- 229920002857 polybutadiene Polymers 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000012948 isocyanate Substances 0.000 claims description 7
- -1 isocyanate compound Chemical class 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 229920000538 Poly[(phenyl isocyanate)-co-formaldehyde] Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
本発明は防水性改質アスフアルトシートに関
し、詳しくは不織布，織布等の基材に改質アスフ
アルトを塗布して含浸せしめた防水性積層改質ア
スフアルトシートに関するものである。[Detailed Description of the Invention] The present invention relates to a waterproof modified asphalt sheet, and more particularly to a waterproof laminated modified asphalt sheet in which a base material such as a nonwoven fabric or woven fabric is coated with modified asphalt and impregnated with the modified asphalt sheet. .
従来、防水性アスフアルトシートの製造に際し
てアスフアルトに対して反応性のないゴム又は合
成樹脂を配合した改質アスフアルトが使用されて
いたが、単にアスフアルトに上記高分子化合物を
分散せしめたコンパウンドは加熱混合方式では、
粘度や熱劣化等を考慮すると重合度の大きい高分
子化合物を混合することは難かしく、またこれ等
を多量に混合するとコストの高騰を招く等の欠点
がある。 Conventionally, modified asphalt mixed with rubber or synthetic resin that is not reactive with asphalt has been used to manufacture waterproof asphalt sheets, but compounds made by simply dispersing the above-mentioned polymer compounds in asphalt can be produced by heating and mixing. So,
Considering viscosity, thermal deterioration, etc., it is difficult to mix a polymer compound with a high degree of polymerization, and mixing a large amount of these compounds has drawbacks such as a rise in cost.
本発明は分子末端に水酸基を有する液状ポリプ
タジエンと硬化剤たるイソシアネート化合物とを
アスフアルトに混合し、該混合物を無機又は有機
質の繊維からなる不織布、織布等の基材に塗布し
て含浸せしめた防水性積層改質アスフアルトシー
トを提供するものである。 The present invention is a waterproofing method in which liquid polyptadiene having a hydroxyl group at the end of the molecule and an isocyanate compound as a curing agent are mixed with asphalt, and the mixture is applied to a base material such as a nonwoven fabric or woven fabric made of inorganic or organic fibers to impregnate it. The present invention provides a laminated modified asphalt sheet.
こゝで分子末端に水酸基を有する液状ポリブタ
ジエンとは、ブタジエンのホモポリマーのほか、
ブタジエンとイソプレン、アクリロニトリル、ス
チレンなどとの共重合体を意味する。また、硬化
剤として用いるイソシアネート化合物の具体例と
しては、例えばポリメチレンポリフエニルイソシ
アネート、トリレンジイソシアネート、４，4′−
ジフエニルメタンジイソシアネートなどの既知の
化合物がある。 Liquid polybutadiene having a hydroxyl group at the end of the molecule includes homopolymers of butadiene,
A copolymer of butadiene with isoprene, acrylonitrile, styrene, etc. Specific examples of isocyanate compounds used as curing agents include polymethylene polyphenyl isocyanate, tolylene diisocyanate, 4,4'-
There are known compounds such as diphenylmethane diisocyanate.
上記液状ポリブタジエンとイソシアネート化合
物はアスフアルトに対し親和性があり、かつ混合
過程で液状ポリブタジエンは硬化して三次元の網
目構造を形成する。したがつて、硬化がはじまり
粘度が上昇するまでの混合物の可使時間とアスフ
アルトシート成型工程時間とを調整することによ
つて、該混合物の可使時間内に連続的に基材に塗
布、含浸せしめて防水性積層改質アスフアルトシ
ートを製造することができる。特に、基材に塗布
したアスフアルト混合物は、液状ポリブタジエン
の硬化反応初期の粘度が比較的小さい間に基材に
含浸し、目的とするシートの製造が可使時間内に
終了するように調整する必要がある。 The liquid polybutadiene and isocyanate compound have an affinity for asphalt, and during the mixing process, the liquid polybutadiene hardens to form a three-dimensional network structure. Therefore, by adjusting the pot life of the mixture until curing begins and the viscosity increases and the asphalt sheet molding process time, it is possible to continuously coat and impregnate the base material during the pot life of the mixture. At least a waterproof laminated modified asphalt sheet can be produced. In particular, the asphalt mixture applied to the substrate must be adjusted so that it is impregnated into the substrate while the viscosity of the liquid polybutadiene is relatively low at the beginning of the curing reaction, and the production of the desired sheet is completed within the pot life. There is.
一般にシート成型作業は10分以内とされている
ので、前記アスフアルト混合物の可使時間も10分
以内に設定する必要があるが、本発明者の実験に
よると、上記液状ポリブタジエンとイソシアネー
トの混合物はアスフアルトの熔融温度により可使
時間を調節することができる。なお、硬化触媒と
してジブチル錫ジラウレートを0.1％程度添加す
ると可使時間を短縮させることができる。 Generally, the sheet forming process is said to be within 10 minutes, so the pot life of the asphalt mixture must also be set within 10 minutes. However, according to the inventor's experiments, the above mixture of liquid polybutadiene and isocyanate is The pot life can be adjusted by the melting temperature. Note that the pot life can be shortened by adding about 0.1% of dibutyltin dilaurate as a curing catalyst.
本発明で用いる液状ポリブタジエンとイソシア
ネート化合物を配合したアスフアルト、すなわち
改質アスフアルトの性状の一例を示すと次の如く
である。 An example of the properties of asphalt blended with liquid polybutadiene and an isocyanate compound, ie, modified asphalt, used in the present invention is as follows.
配合割合
ストレートアスフアルト（針入度60〜80）
80重量部
末端OH基含有液状ポリブタジエン
18 〃
ポリメチレンポリフエニルイソシアネート
２ 〃
上記混合物を120℃で混合撹拌した場合、硬化
反応がはじまり粘度が上昇するまでの可使時間は
４分30秒である。Blending ratio Straight asphalt (penetration 60-80) 80 parts by weight Liquid polybutadiene containing terminal OH groups 18 〃 Polymethylene polyphenyl isocyanate 2 〃 When the above mixture is mixed and stirred at 120°C, until the curing reaction starts and the viscosity increases The pot life is 4 minutes and 30 seconds.
改質アスフアルトの性状は
軟化点 150℃以上（180℃付近で分解が始ま
る）
針入度（25℃）35
引張り強さ（20℃）18Kg／cm2
引張り伸び率（20℃）540％
引裂き強さ（20℃）５Kg／cm
なお、ストレートアスフアルトの性状は次のと
おりである。 The properties of modified asphalt are: Softening point: 150℃ or higher (decomposition begins around 180℃) Penetration (25℃): 35 Tensile strength (20℃): 18Kg/cm 2 Tensile elongation (20℃): 540% Tear strength (20℃) 5Kg/cm The properties of straight asphalt are as follows.
軟化点 48℃
針入度（25℃） 70
伸度（15℃） 100以上
したがつて、上記数値を比較すれば明らかなよ
うに、改質アスフアルトは軟化点が著しく上昇し
ており、物理的性質が向上していることが判る。 Softening point 48℃ Penetration (25℃) 70 Elongation (15℃) 100 or more Therefore, as is clear from comparing the above values, modified asphalt has a significantly increased softening point and is physically It can be seen that the properties have improved.
本発明の防水性積層改質アスフアルトシートは
高温時の熱変化が少なく、かつ低温時においても
可とう性に富んでおり、コンクリート建造物の防
水シートとしてきわめて有用である。 The waterproof laminated modified asphalt sheet of the present invention has little thermal change at high temperatures and is highly flexible even at low temperatures, making it extremely useful as a waterproof sheet for concrete buildings.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
実施例
ストレートアスフアルト（針入度60〜80）80重
量部を135℃に加熱し、これに末端OH基含有液
状ポリブタジエン18重量部とポリメチレンポリフ
エニルイソシアネート２重量部を常温で加えて混
合すると、混合物の温度は120℃となつた。な
お、各原料は別々の容器からポンプを介してミキ
サーに送り、急速に撹拌したのち瞬間的にポリエ
ステル不織布（100ｇ／m2）の上に厚さ２mmの層
１となるように塗布した。アスフアルト混合物の
粘度は小さいので基材たる不織布２の繊維間に含
浸して裏面まで浸み出た。可使時間の４分30秒の
間に硬化反応が進行し、不織布を基材とした防水
性積層改質アスフアルトシートＡが形成された。Example When 80 parts by weight of straight asphalt (penetration 60-80) is heated to 135°C, 18 parts by weight of liquid polybutadiene containing terminal OH groups and 2 parts by weight of polymethylene polyphenyl isocyanate are added and mixed at room temperature. The temperature of the mixture reached 120°C. Each raw material was sent from a separate container to a mixer via a pump, stirred rapidly, and then instantaneously coated on a polyester nonwoven fabric (100 g/m 2 ) to form a layer 1 with a thickness of 2 mm. Since the viscosity of the asphalt mixture was low, it impregnated between the fibers of the nonwoven fabric 2 serving as the base material and seeped out to the back surface. A curing reaction progressed during the pot life of 4 minutes and 30 seconds, and a waterproof laminated modified asphalt sheet A having a nonwoven fabric as a base material was formed.
作業工程が４分50秒程度になる如く作業距離を
保つと、アスフアルトシートをロール状に巻き取
ることができるが、この場合、中間工程で該シー
トの両面に鉱粒３を撤着すると、該シート面の粘
着性が抑えられ、巻き取つた場合でも他のシート
面を汚染したりすることがない。 If the working distance is maintained so that the working process lasts about 4 minutes and 50 seconds, the asphalt sheet can be wound up into a roll, but in this case, if the ore particles 3 are removed from both sides of the sheet in the intermediate process, the The adhesiveness of the sheet surface is suppressed, and even if it is rolled up, it will not contaminate other sheet surfaces.
この防水性積層改質アスフアルトシートＡ（厚
み25mm）の性状は次のとおりである。 The properties of this waterproof laminated modified asphalt sheet A (thickness 25 mm) are as follows.
引張り強さ（20℃） 10Kg／10mm
引張り伸び率（20℃） 40％
引裂き強さ 5.5Kg／cm
熱時の変形（80℃×168時間） 殆んどなし
低温可とう性（−20℃） 合格※
※試験法はJIS A6009「基布その他を積層し
た合成高分子ルーフイング」に準じて行つた。 Tensile strength (20℃) 10Kg/10mm Tensile elongation rate (20℃) 40% Tear strength 5.5Kg/cm Deformation when heated (80℃ x 168 hours) Almost none Low temperature flexibility (-20℃) Passed* *The test method was conducted in accordance with JIS A6009 "Synthetic polymer roofing laminated with base fabric and other materials".
この防水性積層改質アスフアルトシートは同系
のウレタン−アスフアルト塗膜材（２液反応型）
を接着剤として施工することができるので、複合
防水層を形成して露出型防水工事用に適する。 This waterproof laminated modified asphalt sheet is a similar urethane-asphalt coating material (two-component reaction type).
Since it can be applied as an adhesive, it forms a composite waterproof layer and is suitable for exposed type waterproofing work.
一方、上記防水性積層改質アスフアルトシート
の表面にのみ珪砂を撤着し、裏面にストレートア
スフアルトに軟化剤を添加したもの60重量部に前
記液状ポリブタジエン40重量部とポリメチレンポ
リジフエニルイソシアネート３重量部を加えて未
反応の液状ポリブタジエンが残存するように配合
した粘着性のコンパウンド４を0.7mm程度の厚さ
となるように付着し、剥離紙５を密着した感圧型
防水性積層改質アスフアルトシートＢを製造し
た。 On the other hand, silica sand was removed only on the surface of the waterproof laminated modified asphalt sheet, and on the back side, 60 parts by weight of straight asphalt with a softener added, 40 parts by weight of the liquid polybutadiene, and 3 parts by weight of polymethylene polydiphenyl isocyanate. Pressure-sensitive waterproof laminated modified asphalt sheet B on which adhesive compound 4, which is blended in such a manner that unreacted liquid polybutadiene remains, is adhered to a thickness of approximately 0.7 mm, and release paper 5 is adhered thereto. was manufactured.
このシートＢは剥離紙５を使用時に剥ぎ、圧着
施工することにより防水層とすることができる。 This sheet B can be made into a waterproof layer by peeling off the release paper 5 at the time of use and applying pressure bonding.
第１図は本発明の１実施態様である非感圧性防
水性積層改質アスフアルトシートの構成を示す断
面図であり、第２図は本発明の別の実施態様であ
る感圧性防水性積層改質アスフアルトシートの構
成を示す断面図である。
Ａ……非感圧性防水性積層改質アスフアルトシ
ート、Ｂ……感圧性防水性積層改質アスフアルト
シート、１……改質アスフアルト層、２……基
材、３……鉱砂、４……粘着剤層、５……剥離
紙。
FIG. 1 is a sectional view showing the structure of a non-pressure-sensitive waterproof laminated modified asphalt sheet that is one embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the structure of a pressure-sensitive waterproof laminated modified asphalt sheet that is another embodiment of the present invention. 1 is a sectional view showing the structure of a quality asphalt sheet. A...Non-pressure sensitive waterproof laminated modified asphalt sheet, B...Pressure sensitive waterproof laminated modified asphalt sheet, 1...Modified asphalt layer, 2...Base material, 3...Mineral sand, 4... Adhesive layer, 5... Release paper.
Claims (1)
ンと硬化剤たるイソシアネート化合物とをアスフ
アルトに混合し、該混合物を無機又は有機質の繊
維からなる不織布、織布等の基材に塗布して含浸
せしめた防水性積層改質アスフアルトシート。1. A waterproof laminate in which liquid polybutadiene having a hydroxyl group at the end of the molecule and an isocyanate compound as a curing agent are mixed with asphalt, and the mixture is applied to and impregnated on a base material such as a nonwoven fabric or woven fabric made of inorganic or organic fibers. Modified asphalt sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7635779A JPS5619750A (en) | 1979-06-19 | 1979-06-19 | Laminating waterproof sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7635779A JPS5619750A (en) | 1979-06-19 | 1979-06-19 | Laminating waterproof sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5619750A JPS5619750A (en) | 1981-02-24 |
| JPS6145533B2 true JPS6145533B2 (en) | 1986-10-08 |
Family
ID=13603098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7635779A Granted JPS5619750A (en) | 1979-06-19 | 1979-06-19 | Laminating waterproof sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5619750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01129311U (en) * | 1988-02-17 | 1989-09-04 | ||
| JPH029211U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH0445814U (en) * | 1990-08-24 | 1992-04-17 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811141A (en) * | 1981-07-15 | 1983-01-21 | 三井東圧化学株式会社 | Composite waterproof sheet |
| JPS5865381U (en) * | 1981-10-26 | 1983-05-02 | 株式会社サカシタ | rubber knitted or woven fabric |
| JPS5963109U (en) * | 1982-10-20 | 1984-04-25 | 三ツ星ベルト株式会社 | waterproof sheet |
| JPS59129260A (en) * | 1983-01-14 | 1984-07-25 | Daiwa Kobunshi Kogyo Kk | Production of waterproof sheet |
| JPS61204989A (en) * | 1985-03-08 | 1986-09-11 | Toshiba Corp | Semiconductor photoelectric converter |
| JPS61252147A (en) * | 1985-04-30 | 1986-11-10 | 出光石油化学株式会社 | Waterproof sheet |
| FR2794127B1 (en) * | 1999-05-26 | 2003-09-05 | Colas Sa | STICKY COMPOSITION FOR HIGH-PERFORMANCE ARMED BITUMEN / POLYURETHANE POLYURETHANE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130839A (en) * | 1974-09-10 | 1976-03-16 | Nippon Soda Co | |
| JPS5441922A (en) * | 1977-09-09 | 1979-04-03 | Dainippon Ink & Chemicals | Asphalt composition |
-
1979
- 1979-06-19 JP JP7635779A patent/JPS5619750A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130839A (en) * | 1974-09-10 | 1976-03-16 | Nippon Soda Co | |
| JPS5441922A (en) * | 1977-09-09 | 1979-04-03 | Dainippon Ink & Chemicals | Asphalt composition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01129311U (en) * | 1988-02-17 | 1989-09-04 | ||
| JPH029211U (en) * | 1988-06-30 | 1990-01-22 | ||
| JPH0445814U (en) * | 1990-08-24 | 1992-04-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5619750A (en) | 1981-02-24 |
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