JPS63240312A - Immediately effective moisture blocking material - Google Patents
Immediately effective moisture blocking materialInfo
- Publication number
- JPS63240312A JPS63240312A JP62070850A JP7085087A JPS63240312A JP S63240312 A JPS63240312 A JP S63240312A JP 62070850 A JP62070850 A JP 62070850A JP 7085087 A JP7085087 A JP 7085087A JP S63240312 A JPS63240312 A JP S63240312A
- Authority
- JP
- Japan
- Prior art keywords
- water
- urethane prepolymer
- container
- bag
- chamber
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims description 35
- 230000000903 blocking effect Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 11
- 238000005187 foaming Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 239000006260 foam Substances 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 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 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、主として通信ケーブル、電カケープル等の
施設されたマンホール内の管路口の管とケーブル等の間
に配設され、上記間隙を迅速に止水しうる速効性止水材
に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention is mainly applicable to communication cables, power cables, etc., which are installed between pipes and cables at the entrance of a conduit in a manhole, and which quickly closes the gap. This invention relates to a fast-acting water-stopping material that can stop water.
一般に、通信ゲーブル、電カケープル等は、地中に埋設
された地下配管内に配挿されている。これらの地下配管
は端部がマンホールに開口しており、そのマンホール部
分においては管とケーブルとの間から水等が漏出すると
いう状態が生じる。Generally, communication cables, power cables, and the like are installed in underground pipes buried underground. The ends of these underground pipes open into manholes, and a situation occurs in which water or the like leaks from between the pipes and the cables at the manhole portions.
このような事態の発生防止のため、従来、末端イソシア
ネート基含有ウレタンプレポリマー（溶液状）をそのま
ま上記空隙内に入れ布等でその隙間を塞いで上記プレポ
リマーの流失を防止し漏水と反応させて発泡膨張硬化さ
せ止水するということが行われている。このようにして
上水する場合には、ウレタンプレポリマーが発泡硬化し
て大きな強度と管路との密着性を示し、優れた止水作用
を発揮する。In order to prevent this kind of situation from occurring, conventionally, a urethane prepolymer containing terminal isocyanate groups (in solution form) is placed directly into the above-mentioned void and the gap is closed with cloth, etc. to prevent the prepolymer from flowing out and to react with water leakage. This is done by foaming, expanding and hardening to stop water. When drinking water in this manner, the urethane prepolymer foams and hardens, exhibiting great strength and adhesion to the pipe line, and exhibits an excellent water-stopping effect.
しかしながら、上記末端イソシアネート基含有ウレタン
プレポリマー（以下「ウレタンプレポリマー」と略す）
を止水材として使用する場合には、それを直接管路口か
らケーブルと管との隙間に充填する必要がある。このよ
うにする場合には、イソシアネート基の強い毒性等を防
ぐため、皮膚や目や衣服等の付着防止に留意しながら作
業する必要があり、作業が煩雑になるという難点が生じ
る。また、毒性ガスの発生があるため、安全衛生上の観
点からも問題が生じる。そのうえ、上記ウレタンプレポ
リマーは溶液状であって充填に時間が掛かり、かつ反応
開始まで管路内において流失防止する必要があるため、
特に漏水が激しい場合にはウレタンプレポリマーが流失
してしまい止水ができないという大きな問題を有してい
る。However, the above-mentioned urethane prepolymer containing terminal isocyanate groups (hereinafter abbreviated as "urethane prepolymer")
When used as a water stop material, it is necessary to fill the gap between the cable and the pipe directly from the pipe entrance. In this case, in order to prevent the strong toxicity of the isocyanate group, it is necessary to take care to prevent adhesion to the skin, eyes, clothes, etc., and the work becomes complicated. Furthermore, since toxic gas is generated, problems arise from a safety and health perspective. Furthermore, the urethane prepolymer is in a solution form and takes time to fill, and it is necessary to prevent it from flowing out in the pipeline until the reaction starts.
In particular, when there is a large amount of water leakage, the urethane prepolymer is washed away and water cannot be stopped, which is a major problem.
この発明は、このような事情に鑑みなされたもので、止
水作業がＷＩ車で、かつ安全衛生上の問題を生じず、し
かも激しい漏水下においても良好に止水しうる速効性止
水材の提供をその目的とする。This invention was made in view of the above circumstances, and provides a fast-acting water-stopping material that can be used for water-stopping work using a WI vehicle, does not cause health and safety problems, and can effectively stop water even in severe water leakage. Its purpose is to provide.
Ｃ問題点を解決するための手段〕
上記の目的を達成するため、この発明の速効性止水材は
、内圧が所定値を超えると破壊するように構成された容
器内を、除去容易な隔離材で２室に分け、一方の室に末
端イソシアネート基含有ウレタンプレポリマーをそのま
まもしくはこれを含浸用基材に含浸させた状態で充填密
封し、他方の室に上記ウレタンプレポリマーの硬化剤を
充填密封するという構成をとる。Means for Solving Problem C] In order to achieve the above object, the fast-acting water-stopping material of the present invention provides an easy-to-remove isolation material in a container configured to break when the internal pressure exceeds a predetermined value. Divided into two chambers using material, one chamber is filled and sealed with the urethane prepolymer containing terminal isocyanate groups as it is or impregnated with the base material for impregnation, and the other chamber is filled with the curing agent for the above urethane prepolymer. It is configured to be sealed.
すなわち、上記速効性止水材は、ウレタンプレポリマー
を容器内に収容しているため、止水作業時にウレタンプ
レポリマーが皮膚や目、衣服に付着することがない。し
かも、その使用に際しては、隔離材を除去してウレタン
プレポリマーと硬化剤とを水溶性高分子材料製容器内で
混合させ、ある程度発泡させてから容器ごと止水筒所に
詰める。その結果、発泡圧により袋が破壊され、止水筒
所で発泡硬化が完了するようになる。したがって、漏水
の激しい場所でも、薬液の流出が生じず、迅速に止水し
うるようになる。また、止水作業の簡素化を実現しうる
ようになる。そのうえ、毒性ガスの発生もないため、安
全衛生上の問題も生しない。That is, since the quick-acting water stop material contains the urethane prepolymer in the container, the urethane prepolymer does not adhere to the skin, eyes, or clothes during water stop work. Moreover, when using it, the separator is removed, the urethane prepolymer and the curing agent are mixed in a container made of a water-soluble polymer material, and after foaming to some extent, the container is packed into a water stop tube. As a result, the bag is destroyed by the foaming pressure, and the foaming hardening is completed at the water stop. Therefore, even in places with severe water leakage, the chemical solution does not leak out and the water can be quickly stopped. In addition, it becomes possible to simplify the water stoppage work. Furthermore, since no toxic gas is generated, there are no health and safety problems.
この発明の速効性止水材は、内圧が所定値を超えると破
壊するように構成された容器と、この内部を２室に分け
る隔離材と、ウレタンプレポリマーと、場合によっては
上記ウレタンプレポリマーを含浸させる含浸用基材と、
硬化剤とを用いて得られる。The quick-acting water stop material of the present invention includes a container configured to break when the internal pressure exceeds a predetermined value, an isolating material that divides the interior into two chambers, a urethane prepolymer, and, in some cases, the above-mentioned urethane prepolymer. an impregnating base material impregnated with
It can be obtained using a hardening agent.
上記容器としては、特に材質は制限するものではない。The material of the container is not particularly limited.
ウレタンプレポリマーと硬化剤とが反応し、ある程度発
泡するまで容器形状を保持しうるちのであれば、合成樹
脂製でもよいし金属箔製でもよい。また、両者のラミネ
ート品でもよい。また、合成樹脂製のものの場合、水溶
性であってもなくてもよい。水溶性のものとして、ポリ
ビニルアルコール（ＰＶＡ）、 ヒドロキシエチルセ
ルロース、カルボキシメチルセルロース、繊維素グリコ
ール酸ナトリウム等からなるものがあげられる。そして
、容器の形状としては特に限定するものではないが、フ
ィルムパック（袋状物）が好ましい。場合に劣っては上
記容器形状を通信ケーブル等の周囲を取り囲むような中
空円柱状に形成してもよい。また、二重袋状にしてもよ
い。The container may be made of synthetic resin or metal foil as long as it can maintain the shape of the container until the urethane prepolymer reacts with the curing agent and foams to some extent. Alternatively, a laminate product of both may be used. Moreover, in the case of a synthetic resin material, it may or may not be water-soluble. Examples of water-soluble materials include those made of polyvinyl alcohol (PVA), hydroxyethyl cellulose, carboxymethyl cellulose, cellulose sodium glycolate, and the like. The shape of the container is not particularly limited, but a film pack (bag-like product) is preferable. In some cases, the container may be formed into a hollow columnar shape that surrounds the communication cable or the like. Moreover, it may be made into a double bag shape.
上記容器の内部を２室に分ける隔離材も特に制限するも
のではない。上記容器製造時に、容器と同材質のもので
一体的に構成された仕切壁でもよいし、また容器が袋状
のものの場合、袋の中央部を挟んで袋を二つに分けるク
リップ等でもよい。The isolation material that divides the inside of the container into two rooms is not particularly limited either. When manufacturing the above container, it may be a partition wall made of the same material as the container, or if the container is bag-shaped, it may be a clip that divides the bag into two by holding the center of the bag. .
なお、上記容器が二重袋状容器の場合には、内側 ゛
の袋が隔離材となる。この内側の袋または上記仕切壁に
は、破壊しやすいように切れ目や筋等を入れておくこと
が行われる。If the container is a double-bag container, the inner bag serves as the isolation material. This inner bag or the partition wall is provided with cuts, lines, etc. to make it easier to destroy.
上記容器内に充填密封されるウレタンプレポリマーは特
に制限するものではなく、後記の硬化剤と反応して発泡
膨張硬化するものであればどのようなものでも使用可能
である。しかしながら、反応が速やかなものが好ましい
。そのようなものとして例えば、−級アルキレンオキサ
イドと二級アルキレンオキサイドとをランダム共重合さ
せ分子中に一級アルキレンオキサイドを２０〜６０ｕｔ
％を含むポリアルキレンオキサイドと、有機イソシアネ
ートとを反応させて得られたウレタンプレポリマーがあ
げられる。そして、上記ウレタンプレポリマーとともに
必要に応じて従来公知の可塑剤充填剤等を封入すること
も可能である。The urethane prepolymer to be filled and sealed in the container is not particularly limited, and any polymer can be used as long as it expands and hardens by reacting with the curing agent described below. However, those that react quickly are preferred. As such, for example, by randomly copolymerizing -class alkylene oxide and secondary alkylene oxide, 20 to 60 ut of primary alkylene oxide is added to the molecule.
% of polyalkylene oxide and an organic isocyanate. It is also possible to encapsulate a conventionally known plasticizer filler or the like together with the urethane prepolymer, if necessary.
上記ウレタンプレポリマーは、そのまま上記容器内の一
方の室に充填密封しても差し支えはない。しかし、補強
効果等の観点から、上記ウレタンプレポリマーを含浸用
基材に含浸させた状態で上記容器内に充填密封すること
が好適である。上記含浸用基材は、ウレタンプレポリマ
ーのインシアネート基と反応したり、また、ウレタンプ
レポリマーの水との反応を妨害したり発泡を妨害したり
することのない材質のものが用いられる。例えば繊維材
としては、ガラス繊維、炭素繊維、金属繊維やポリオレ
フィン系繊維等のイソシアネートに対して不活性な繊維
の綿状集合体があげられる。The urethane prepolymer may be directly filled and sealed in one chamber of the container. However, from the viewpoint of reinforcing effects and the like, it is preferable to fill and seal the container in a state in which the impregnation base material is impregnated with the urethane prepolymer. The impregnating base material used is a material that does not react with the incyanate group of the urethane prepolymer, nor interfere with the reaction of the urethane prepolymer with water, nor interfere with foaming. For example, examples of the fiber material include flocculent aggregates of fibers that are inert to isocyanates, such as glass fibers, carbon fibers, metal fibers, and polyolefin fibers.
また、スポンジ材としては、ウレタンスポンジ材や塩化
ビニルのスポンジ体等があげられる。Examples of the sponge material include urethane sponge material and vinyl chloride sponge material.
上記容器の他方の室に充填される硬化剤は特に制限する
ものではな（ウレタンプレポリマーと反応する従来公知
の硬化剤が使用される。水も硬化剤となるものであり、
コストが安いという点から賞用される。The curing agent filled in the other chamber of the container is not particularly limited (a conventionally known curing agent that reacts with the urethane prepolymer is used. Water also acts as a curing agent,
It is prized for its low cost.
この発明の速効性止水材は、上記の原料を用い、例えば
つぎのようにして製造することができる。The quick-acting water stop material of the present invention can be produced using the above-mentioned raw materials, for example, in the following manner.
すなわち、予め仕切壁で内部が２室に区切られた高分子
材料製袋容器をつくり、この一方の室にウレタンプレポ
リマーをそのままもしくは上記含浸用基材に含浸させて
充填し開口部を熱溶融封止したり、一部水で溶解し、つ
いで接合封止したりすることによって密封し、ついで他
方の室に硬化剤を充填し同様にして密封するということ
により製造する・ことができる。That is, a polymer material bag container is made in advance with the interior divided into two chambers by a partition wall, and one chamber is filled with urethane prepolymer either as it is or by impregnating it with the above-mentioned impregnating base material, and the opening is heated and melted. It can be manufactured by sealing, or by partially dissolving in water and then bonding and sealing, and then filling the other chamber with a hardening agent and sealing in the same manner.
つぎに、この発明を実施例にもとづいて説明する。Next, the present invention will be explained based on examples.
第１図はこの発明の一実施例を示している。図において
、１は内部が仕切壁１ａによって２室に区切られたポリ
オレフィン系プラスチック袋であり、一方の室に、ポリ
アルキレンオキサイド（第一級アルキレンオキサイド５
０％含有）とトリレンジイソシアネートとの反応物（イ
ソシアネート基５％含有）であるウレタンプレポリマー
（Ａ液）が充填密封されている。そして、他方の室に硬
化剤としての水（Ｂ液）が含有されている。なお、上記
内部仕切壁１ａには袋１の長手方向に沿って複数本の筋
が切り込み形成され破れやすくなっている。FIG. 1 shows an embodiment of the invention. In the figure, 1 is a polyolefin plastic bag whose interior is divided into two chambers by a partition wall 1a, and one chamber contains polyalkylene oxide (primary alkylene oxide 5
The container is filled and sealed with a urethane prepolymer (liquid A), which is a reaction product of tolylene diisocyanate (containing 0% isocyanate groups) and tolylene diisocyanate (containing 5% isocyanate groups). The other chamber contains water (liquid B) as a curing agent. Note that a plurality of lines are cut into the internal partition wall 1a along the longitudinal direction of the bag 1, making it easy to tear.
上記止水材の使用に際しては、プラスチック袋１を手で
持ち、揉む等して内部仕切壁１ａを破き、上記Ａ液とＢ
液とを第２図のように混合し、ある程度反応を進めさせ
発泡させる。つぎに、その状態で止水箇所に充填する。When using the above water-stopping material, hold the plastic bag 1 in your hands, rub it, etc. to break the internal partition wall 1a, and separate the liquid A and B.
The mixture is mixed with the liquid as shown in Figure 2, and the reaction is allowed to proceed to some extent to form foam. Next, in this state, fill the water stop area.
その結果、発泡圧により袋１が破れ、ある程度反応が進
んで発泡硬化した反応物により止水筒所が迅速に塞がれ
、その状態で反応がさらに進んで強固な止水が完了する
。As a result, the bag 1 ruptures due to the foaming pressure, the reaction progresses to a certain extent, and the water stopper is quickly blocked by the foamed and hardened reactant, and in this state the reaction further progresses to complete a strong water stop.
第３図は他の峡流側を示している。この実施例では、上
記実施例の袋ｌと同材質の袋（仕切壁なし）１の中央部
をクランプ２で挟んで上記袋１の内部を２室に区分し、
上記と同様のＡ液とＢ液とをそれぞれ各室に個別に充填
している。この実施例では、クランプ２を外してＡ、Ｂ
両液を混合するようになっている。Figure 3 shows the other side of the gorge. In this embodiment, the center of a bag 1 (without partition wall) made of the same material as the bag 1 of the above embodiment is sandwiched between clamps 2 to divide the interior of the bag 1 into two chambers,
Each chamber is individually filled with liquid A and liquid B as described above. In this embodiment, clamps 2 are removed and A and B are
Both liquids are mixed.
第４図はさらに他の実施例を示している。すなわち、こ
の実施例は、上記実施例と同材質の二重袋を用い、内側
の袋３内に上記と同様のＡ液を充填密封し外側の袋４に
Ｂ液を充填密封している。FIG. 4 shows yet another embodiment. That is, in this embodiment, a double bag made of the same material as in the above embodiment is used, and the inner bag 3 is filled and sealed with liquid A similar to the above, and the outer bag 4 is filled and sealed with liquid B.
この場合、内側袋３は薄肉に形成され、外側袋４を強く
揉むことによるＢ液の圧力によって破壊され、それによ
ってＡ、Ｂ両液が混合するようになっている。In this case, the inner bag 3 is formed to have a thin wall, and is destroyed by the pressure of liquid B by strongly rubbing the outer bag 4, so that both liquids A and B are mixed.
この発明の速効性止水材は、隔離材を除去してウレタン
プレポリマーと硬化剤とを容器内で混合させ、ある程度
発泡させてから容器ごと止水筒所に詰め、発泡圧により
袋を破壊させ、止水筒所でウレタンプレポリマー発泡硬
化を完了させるようになっている。したがって、漏水の
激しい場所でも、薬液の流出が生じず、迅速に止水しう
るようになる。また、容器内でウレタンプレポリマーと
硬化剤とを混合して使用するため、両者が均一混合し、
その結果、均一発泡硬化が得られるようになり、反応物
の強度が向上し強固な止水をなしうるようになる。また
、止水場所に水が存在しないようなときでも使用しうる
。そのうえ、止水作業の簡素化を実現しうるようになる
。また、毒性ガスの発生もないため、安全衛生上の問題
も生じない。The fast-acting water-stopping material of this invention removes the separator, mixes the urethane prepolymer and hardening agent in a container, foams to some extent, then packs the container into a water-stop tube, and the foaming pressure destroys the bag. , the urethane prepolymer foam curing is completed at the water stop. Therefore, even in places with severe water leakage, the chemical solution does not leak out and the water can be quickly stopped. In addition, since the urethane prepolymer and curing agent are mixed in the container, the two are mixed uniformly.
As a result, uniform foaming and curing can be obtained, the strength of the reactant is improved, and strong water stoppage can be achieved. It can also be used even when there is no water at a water stop location. Moreover, it becomes possible to simplify the water stoppage work. Furthermore, since no toxic gas is generated, there are no safety and health problems.
第１図はこの発明の一実施例の構成図、第２図はその使
用説明図、第３図は他の実施例の構成図、第４図はさら
に他の実施例の構成図である。
１・・・袋 １ａ・・・仕切壁 Ａ・・・ウレタンプレ
ポリマー Ｂ・・・水
第４図FIG. 1 is a block diagram of one embodiment of the present invention, FIG. 2 is a diagram for explaining its use, FIG. 3 is a block diagram of another embodiment, and FIG. 4 is a block diagram of still another embodiment. 1... Bag 1a... Partition wall A... Urethane prepolymer B... Water Figure 4
Claims (2)
た容器内を、除去容易な隔離材で２室に分け、一方の室
に末端イソシアネート基含有ウレタンプレポリマーをそ
のままもしくはこれを含浸用基材に含浸させた状態で充
填密封し、他方の室に上記ウレタンプレポリマーの硬化
剤を充填密封してなる速効性止水材。(1) Divide the inside of the container, which is configured to break when the internal pressure exceeds a predetermined value, into two chambers using an easily removable isolating material, and fill one chamber with the urethane prepolymer containing terminal isocyanate groups or impregnated with it. A fast-acting water-stopping material obtained by filling and sealing the base material in a state in which it is impregnated, and filling and sealing the curing agent of the above-mentioned urethane prepolymer in the other chamber.
特許請求の範囲第１項記載の速効性止水材。(2) The fast-acting water stop material according to claim 1, wherein the impregnating base material is a fiber material or a sponge material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070850A JPH0787664B2 (en) | 1987-03-25 | 1987-03-25 | Quick-acting waterproof material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62070850A JPH0787664B2 (en) | 1987-03-25 | 1987-03-25 | Quick-acting waterproof material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63240312A true JPS63240312A (en) | 1988-10-06 |
| JPH0787664B2 JPH0787664B2 (en) | 1995-09-20 |
Family
ID=13443454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62070850A Expired - Lifetime JPH0787664B2 (en) | 1987-03-25 | 1987-03-25 | Quick-acting waterproof material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787664B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0365791U (en) * | 1989-10-24 | 1991-06-26 |
-
1987
- 1987-03-25 JP JP62070850A patent/JPH0787664B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0365791U (en) * | 1989-10-24 | 1991-06-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0787664B2 (en) | 1995-09-20 |
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