JP2002275493A - Lubricating agent and clean water instrument - Google Patents
Lubricating agent and clean water instrumentInfo
- Publication number
- JP2002275493A JP2002275493A JP2001218185A JP2001218185A JP2002275493A JP 2002275493 A JP2002275493 A JP 2002275493A JP 2001218185 A JP2001218185 A JP 2001218185A JP 2001218185 A JP2001218185 A JP 2001218185A JP 2002275493 A JP2002275493 A JP 2002275493A
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- Japan
- Prior art keywords
- water
- lubricant
- lubricating agent
- viscosity
- clean water
- 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.)
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- Joints With Sleeves (AREA)
- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
- Lubricants (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば、給湯器
のように、上水道に接続される上水機器における水流路
や温水流路の接続に適した潤滑剤に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricant suitable for connecting a water flow path and a hot water flow path in a water supply device connected to a water supply system, such as a water heater.
【０００２】[0002]
【従来の技術】例えば、給湯器内の温水流路の接続構造
としては、図７（ａ）、（ｂ）に示すように、外周面に
形成された周溝５１ａに、ニトリルゴム等からなるＯリ
ング５２が装着された温水配管５１を、接続タッピング
５３に挿入し、Ｏリング５２を接続タッピング５３の内
周面に圧接させることによって流路接続部のシール性能
を確保している。2. Description of the Related Art For example, as shown in FIGS. 7A and 7B, a connection structure of a hot water flow path in a water heater is formed of a nitrile rubber or the like in a circumferential groove 51a formed on an outer peripheral surface. The hot water pipe 51 with the O-ring 52 attached thereto is inserted into the connection tapping 53, and the O-ring 52 is pressed against the inner peripheral surface of the connection tapping 53 to ensure the sealing performance of the flow path connection portion.
【０００３】従って、こういった流路の接続構造におい
ては、接続タッピング５３の内径がＯリング５２の外径
より小さくなるように設定されており、Ｏリング５２を
接続タッピング５３の径方向に圧縮させながら、温水配
管５１を接続タッピング５３に挿入しなければならず、
温水パイプ５１を接続タッピング５３にスムースに挿入
することができず、流路の接続作業性がよいとはいえな
い。Therefore, in such a connection structure of the flow path, the inner diameter of the connection tapping 53 is set to be smaller than the outer diameter of the O-ring 52, and the O-ring 52 is compressed in the radial direction of the connection tapping 53. While the hot water pipe 51 must be inserted into the connection tapping 53,
The hot water pipe 51 cannot be smoothly inserted into the connection tapping 53, and the connection workability of the flow path cannot be said to be good.
【０００４】このため、従来は、シリコーンオイルやグ
リス等の油性の潤滑剤をＯリング５２の外周面に塗布す
ることによって、Ｏリング５２の接続タッピング５３に
対する滑り性を高めることで、温水流路の接続作業性を
向上させている。For this reason, conventionally, an oil-based lubricant such as silicone oil or grease is applied to the outer peripheral surface of the O-ring 52 to improve the slipperiness of the O-ring 52 with respect to the connection tapping 53, thereby providing a hot water flow path. Connection workability has been improved.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、こうい
った油性の潤滑剤を用いて流路の接続を行った給湯器で
は、初期使用段階で、流路接続部に残留した潤滑剤が流
路接続部を通過する上水や温水と共に、水栓等から流出
して水面に油膜等が発生することになる。流路接続部に
残留した潤滑剤は微量で短時間のうちに流出してしまう
ものであり、特に、人体に影響を与えるものではない
が、上水道から供給される上水を加熱して温水を生成す
る給湯器のように、生成された温水を洗面、シャワーで
使用したり、浴槽に張って使用するような上水機器の場
合、こういった油膜の発生は上水機器の使用者にとって
は不安材料であることは否めず、上水機器の信頼性を損
ないかねないといった問題があった。However, in such a water heater in which the flow paths are connected by using such an oily lubricant, the lubricant remaining in the flow path connection portion at the initial use stage may be removed. Along with clean water and warm water passing through the section, the water flows out of the faucet or the like, and an oil film or the like is generated on the water surface. The amount of lubricant remaining in the flow path connection part is very small and flows out in a short period of time.It does not particularly affect the human body. In the case of water heaters, such as hot water heaters, that use the generated hot water in washing surfaces, showers, or stretched into bathtubs, the generation of such an oil film is a problem for water users. There was a problem that it could not be denied that it was uneasy, which could impair the reliability of water supply equipment.
【０００６】そこで、この発明の課題は、流路の接続作
業性を損なうことなく、油膜等の発生を抑えることがで
きる上水機器に適した潤滑剤及びこういった潤滑剤を用
いて流路の接続を行った上水機器を提供することにあ
る。Accordingly, an object of the present invention is to provide a lubricant suitable for water supply equipment capable of suppressing generation of an oil film or the like without impairing the workability of connecting the flow paths, and a flow path using such a lubricant. It is to provide the water supply equipment which connected.
【０００７】[0007]
【課題を解決するための手段及びその効果】上記の課題
を解決するため、この発明は、０．４Ｐａ・ｓ以上の粘
度になるように、人体に無害な直鎖状の水溶性ポリマー
によって水を増粘させたことを特徴とする潤滑剤を提供
するものである。Means for Solving the Problems and Their Effects To solve the above problems, the present invention provides a water-soluble linear water-soluble polymer that is harmless to the human body so that the viscosity becomes 0.4 Pa · s or more. And a lubricant characterized by having increased viscosity.
【０００８】以上のように構成された潤滑剤は、例え
ば、食品添加物として用いられる人体に無害な水溶性ポ
リマーを増粘安定剤として使用しているので、この潤滑
剤を人間が摂取しても人体への影響が全くなく、油性の
潤滑剤のように、水と分離することもない。The lubricant constituted as described above uses, for example, a water-soluble polymer harmless to the human body used as a food additive as a thickening stabilizer. Has no effect on the human body and does not separate from water unlike oily lubricants.
【０００９】また、この潤滑剤は、分子構造が直鎖状の
水溶性ポリマーを増粘安定剤として使用し、この増粘安
定剤によって、水の粘度を０．４Ｐａ・ｓ以上に増粘さ
せることにより、従来使用していたシリコーンオイル等
の油性の潤滑剤に近い潤滑性能を確保するようにしたの
で、従来の油性の潤滑剤を使用する場合と同様に、上水
機器等における流路の接続作業を円滑に行うことができ
る。Further, this lubricant uses a water-soluble polymer having a linear molecular structure as a thickening stabilizer, and the viscosity of the thickening stabilizer increases the viscosity of water to 0.4 Pa · s or more. As a result, the lubricating performance close to that of oily lubricants such as silicone oil, which has been used in the past, was ensured. Connection work can be performed smoothly.
【００１０】従って、請求項４に係る発明の上水機器の
ように、この潤滑剤を用いて水流路または温水流路の接
続を行ったものにあっては、流路接続部に残留した潤滑
剤が流路接続部を通過する上水や温水と共に流出して
も、水面に油膜が発生することがなく、シリコーンオイ
ル等の油性の潤滑剤を使用した上水機器のように、使用
者の信頼を損なうおそれもない。Therefore, in the case where the water flow path or the hot water flow path is connected by using this lubricant as in the water supply equipment according to the fourth aspect of the invention, the lubrication remaining in the flow path connection portion is not performed. Even if the agent flows out along with the tap water or hot water passing through the flow path connection, no oil film is formed on the water surface, and the user's water is not used, as in the case of water equipment using an oil-based lubricant such as silicone oil. There is no risk of losing trust.
【００１１】特に、請求項２に係る発明の潤滑剤のよう
に、粘度が１０Ｐａ・ｓを越えないように、前記水溶性
ポリマーの配合量を調整したものにあっては、潤滑剤の
粘度が必要以上に高くないので、小量の潤滑剤を均一に
塗布することができると共に、水溶性ポリマーの使用量
も少なくてすむので、廉価に製造することができる。In particular, in the case where the amount of the water-soluble polymer is adjusted so that the viscosity does not exceed 10 Pa · s as in the lubricant according to the second aspect of the present invention, the viscosity of the lubricant is reduced. Since it is not higher than necessary, a small amount of lubricant can be applied uniformly and the amount of the water-soluble polymer used can be small, so that it can be manufactured at low cost.
【００１２】また、請求項３に係る発明の潤滑剤のよう
に、増粘安定剤として使用する水溶性ポリマーとして
は、分子構造が直鎖状で潤滑方向に分子が並び、潤滑性
が良好なポリアクリル酸ナトリウムが適している。Further, as in the case of the lubricant according to the third aspect of the present invention, the water-soluble polymer used as a thickening stabilizer has a linear molecular structure with molecules arranged in the lubricating direction, and has good lubricity. Sodium polyacrylate is suitable.
【００１３】また、上述した潤滑剤には、水の腐敗を防
ぐために、人体に無害な亜硫酸ナトリウムや食品添加物
として認可されている安息香酸ナトリウム、ソルビン酸
ナトリウム等の保存料を０．０１〜１．０重量％程度添
加しておくことが望ましく、製造された潤滑剤の長期使
用を考慮すると、増粘させる水も純水を使用するのが望
ましい。Further, in order to prevent decay of water, the lubricant described above contains a preservative such as sodium sulphite harmless to the human body and sodium benzoate and sodium sorbate, which are approved as food additives, in an amount of from 0.01 to 0.01%. It is desirable to add about 1.0% by weight, and considering long-term use of the manufactured lubricant, it is preferable to use pure water as the water for thickening.
【００１４】また、ポリアクリル酸ナトリウム等の水溶
性ポリマーからなる増粘安定剤を水に均一に溶解させる
ためには、５〜１０重量％程度の人体に無害なエチルア
ルコールやグリセリン等の予備分散用溶媒に増粘安定剤
や保存料を予め分散させておき、これを水に混合して攪
拌しながら溶解させることが望ましい。また、予備分散
用溶媒としては、使用後の潤滑剤が乾燥したときにゴミ
等が付着しにくいように、揮発性を有し、べとつかない
エチルアルコールが適している。In order to uniformly dissolve the thickening stabilizer comprising a water-soluble polymer such as sodium polyacrylate in water, about 5 to 10% by weight of a predispersion of ethyl alcohol or glycerin which is harmless to the human body. It is desirable to disperse the thickening stabilizer and preservative in a solvent for use in advance, mix this with water, and dissolve it with stirring. In addition, as the pre-dispersion solvent, ethyl alcohol, which has volatility and is not sticky, is suitable so that dust after use is hardly adhered when the lubricant is dried.
【００１５】[0015]
【実施例】以下、本発明の実施例及び比較例について説
明するが、本発明は以下の実施例に限定されるものでは
ないことはいうまでもない。EXAMPLES Examples of the present invention and comparative examples will be described below, but it goes without saying that the present invention is not limited to the following examples.
【００１６】（実施例１）表１に示すように、増粘安定
剤として、平均分子量が３００万程度の粉末状のポリア
クリル酸ナトリウム０．３５重量％と、保存料として、
粉末状の安息香酸ナトリウム０．１重量％とを、５．０
重量％のエチルアルコールに均一に分散させ、これを、
９４．５５重量％の純水に混合して攪拌しながら増粘さ
せることによって、潤滑剤を製造した。Example 1 As shown in Table 1, as a thickening stabilizer, 0.35% by weight of powdery sodium polyacrylate having an average molecular weight of about 3,000,000, and as a preservative,
0.1% by weight of sodium benzoate in powder form
By weight in ethyl alcohol, and
A lubricant was produced by mixing with 94.55% by weight of pure water and increasing the viscosity with stirring.
【００１７】（実施例２〜１０）表１に示すように、増
粘安定剤としてのポリアクリル酸ナトリウムの添加量
を、０．５４重量％、０．７重量％、０．９５重量％、
２．０重量％、２．１６重量％、３．０８重量％、４．
００重量％、４．７５重量％、５．０重量％にそれぞれ
変化させると共に、ポリアクリル酸ナトリウムの添加量
に応じて純水の使用量を、９４．３６重量％、９４．２
重量％、９３．９５重量％、９２．９重量％、９２．７
４重量％、９１．８２重量％、９０．９重量％、９０．
１５重量％、８９．９重量％にそれぞれ変化させた点を
除いて、実施例１と同様の方法で、潤滑剤を製造した。(Examples 2 to 10) As shown in Table 1, the addition amount of sodium polyacrylate as a thickening stabilizer was 0.54% by weight, 0.7% by weight, 0.95% by weight,
2.0% by weight, 2.16% by weight, 3.08% by weight, 4.
00 wt%, 4.75 wt%, and 5.0 wt%, respectively, and the amount of pure water used was changed to 94.36 wt%, 94.2 in accordance with the amount of sodium polyacrylate added.
%, 93.95%, 92.9%, 92.7%
4 wt%, 91.82 wt%, 90.9 wt%, 90.
A lubricant was produced in the same manner as in Example 1, except that the lubricant was changed to 15% by weight and 89.9% by weight, respectively.
【００１８】（比較例１）表１に示すように、９４．８
重量％の純水に対して、平均分子量が３００万程度のポ
リアクリル酸ナトリウムを０．１重量％添加した点を除
いて、実施例１と同様の方法によって、潤滑剤を製造し
た。Comparative Example 1 As shown in Table 1, 94.8
A lubricant was manufactured in the same manner as in Example 1, except that 0.1% by weight of sodium polyacrylate having an average molecular weight of about 3,000,000 was added to the pure water of weight%.
【００１９】（比較例２）表１に示すように、９０．９
重量％の純水に対して、食品添加物ではないが、分子構
造が直鎖状のポリエチレンオキサイドを増粘安定剤とし
て４．０重量％添加した点を除いて、実施例１と同様の
方法によって、潤滑剤を製造した。Comparative Example 2 As shown in Table 1, 90.9
A method similar to that of Example 1 except that 4.0% by weight of polyethylene oxide having a linear molecular structure, which is not a food additive, was added as a thickening stabilizer to pure water in an amount of 1% by weight. Produced a lubricant.
【００２０】（比較例３）表１に示すように、純水その
ものを潤滑剤として使用した。Comparative Example 3 As shown in Table 1, pure water itself was used as a lubricant.
【００２１】[0021]
【表１】 [Table 1]
【００２２】以上の実施例１〜１０及び比較例１〜３に
ついて、以下に示す方法に従って、粘度、挿入荷重、摩
擦係数及び塗布量を測定し、その結果を表２及び図４〜
図６に示した。With respect to the above Examples 1 to 10 and Comparative Examples 1 to 3, the viscosity, the insertion load, the friction coefficient and the coating amount were measured in accordance with the following methods, and the results were shown in Table 2 and FIGS.
As shown in FIG.
【００２３】（粘度測定方法）回転粘度計（芝浦システ
ム（株）製）によって、２５℃における潤滑剤の粘度を
測定した。(Method of Measuring Viscosity) The viscosity of the lubricant at 25 ° C. was measured with a rotational viscometer (manufactured by Shibaura System Co., Ltd.).
【００２４】（挿入荷重測定方法）図１（ａ）に示すよ
うに、外周面に形成された周溝に外径２０．８ｍｍのＯ
リング１１が装着された円柱状の挿入部材１０と、内径
が２０ｍｍの挿入穴２１を有する真鍮製の被挿入部材２
０とを用意し、挿入部材１０のＯリング１１の外周面に
潤滑剤を塗布した状態で、同図（ｂ）に示すように、挿
入部材１０を被挿入部材２０の挿入穴２１に挿入する際
の荷重をロードセルによって測定した。(Method of Measuring Insertion Load) As shown in FIG. 1A, an O.D.
A cylindrical insertion member 10 on which a ring 11 is mounted, and a brass insertion member 2 having an insertion hole 21 having an inner diameter of 20 mm.
0, and the lubricant is applied to the outer peripheral surface of the O-ring 11 of the insertion member 10, and the insertion member 10 is inserted into the insertion hole 21 of the inserted member 20 as shown in FIG. The load at that time was measured by a load cell.
【００２５】（摩擦係数測定方法）図２に示すように、
挿入荷重の測定に使用したＯリング１１と同材質のゴム
シート（１２０×４０×２ｍｍ）３１の上に潤滑剤を塗
布し、そのゴムシート３１の上に外径６．５ｍｍ、全長
９．０ｍｍで両端にＣ０．５の面取りを施した真鍮丸棒
３２を固定設置した状態で、真鍮丸棒３２に上方から
４．９Ｎの荷重をかけながらゴムシート３１を、同図に
矢印で示す方向に１６ｍｍ／ｓｅｃで５０ｍｍ摺動させ
たときの摩擦力をロードセルによって測定することで、
摩擦係数を算出した。(Method of Measuring Friction Coefficient) As shown in FIG.
A lubricant is applied onto a rubber sheet (120 × 40 × 2 mm) 31 of the same material as the O-ring 11 used for measuring the insertion load, and an outer diameter of 6.5 mm and a total length of 9.0 mm are applied on the rubber sheet 31. In a state where the brass round bar 32 having a chamfer of C0.5 at both ends is fixed and installed, the rubber sheet 31 is applied to the brass round bar 32 while applying a load of 4.9 N from above in the direction indicated by the arrow in FIG. By measuring the friction force when sliding 50 mm at 16 mm / sec with a load cell,
The coefficient of friction was calculated.
【００２６】（塗布量測定方法）図３（ａ）、（ｂ）に
示すように、挿入荷重の測定に使用した挿入部材１０
を、潤滑剤Ｍに浸漬した後、潤滑剤Ｍから引き上げて潤
滑剤Ｍが挿入部材１０から滴下しなくなった状態で、挿
入部材１０の重量を上皿電子天秤によって測定し、潤滑
剤Ｍに浸漬する前の挿入部材１０の重量との差を潤滑剤
Ｍの塗布量とした。(Method of Measuring Coating Amount) As shown in FIGS. 3A and 3B, the insertion member 10 used for measuring the insertion load was used.
After being immersed in the lubricant M, the weight of the insertion member 10 is measured with a precision electronic balance in a state where the lubricant M is pulled out of the lubricant M and no longer drops from the insertion member 10, and is immersed in the lubricant M. The difference from the weight of the insertion member 10 before the application was defined as the amount of the lubricant M applied.
【００２７】[0027]
【表２】 [Table 2]
【００２８】表２に示すように、粘度が０．４Ｐａ・ｓ
以上である実施例１〜１０は、問題なく挿入部材１０を
被挿入部材２０の挿入穴２１に挿入することができる挿
入荷重（５０Ｎ）以下であり、挿入荷重が３８．０５Ｎ
である従来のシリコーンオイルに比べて潤滑性能が若干
劣っているものの、潤滑剤としては十分な潤滑性能を備
えていることがわかる。As shown in Table 2, the viscosity was 0.4 Pa · s
In Examples 1 to 10 described above, the insertion load (50 N) or less at which the insertion member 10 can be inserted into the insertion hole 21 of the insertion target member 20 without any problem is equal to or less than 38.05 N.
Although the lubricating performance is slightly inferior to that of the conventional silicone oil, it can be seen that the lubricating agent has sufficient lubricating performance.
【００２９】一方、増粘安定剤として使用しているポリ
アクリル酸ナトリウムの配合量が少ないために粘度が
０．４Ｐａ・ｓを下回っている比較例１では、挿入荷重
が７９．５３Ｎであり、潤滑剤として水を使用した比較
例３や潤滑剤を使用しない場合に比べて挿入荷重が小さ
くなっているものの、従来のシリコーンオイルに比べて
挿入荷重がかなり大きく、十分な潤滑性能を備えている
とはいえない。On the other hand, in Comparative Example 1 in which the viscosity was lower than 0.4 Pa · s due to a small amount of sodium polyacrylate used as a thickening stabilizer, the insertion load was 79.53 N, Although the insertion load is smaller than that of Comparative Example 3 using water as the lubricant or not using the lubricant, the insertion load is considerably larger than that of the conventional silicone oil, and has sufficient lubrication performance. Not really.
【００３０】また、図４及び図５に示すグラフからもわ
かるように、分子構造が直鎖状の水溶性ポリマー（ポリ
アクリル酸ナトリウム、ポリエチレンオキサイド）によ
って水を増粘させた潤滑剤では、粘度が大きくなるに従
って挿入荷重及び摩擦係数が小さくなるという相関関係
にあり、粘度が０．４Ｐａ・ｓ以上、より好ましくは１
Ｐａ・ｓ以上になるように、直鎖状の水溶性ポリマーの
配合量を調整することで、十分な潤滑性能を有する潤滑
剤を得ることができる。Further, as can be seen from the graphs shown in FIGS. 4 and 5, in a lubricant in which water is thickened by a water-soluble polymer (sodium polyacrylate, polyethylene oxide) having a linear molecular structure, Has a correlation that the insertion load and the friction coefficient decrease as the value increases, and the viscosity is 0.4 Pa · s or more, more preferably 1 Pa · s or more.
By adjusting the blending amount of the linear water-soluble polymer so as to be Pa · s or more, a lubricant having sufficient lubrication performance can be obtained.
【００３１】しかしながら、潤滑剤の粘度を高くするた
めに水溶性ポリマーの配合量を必要以上に大きくして
も、水溶性ポリマーの配合量に比例して潤滑性能が向上
するわけではなく、逆に、表２及び図６のグラフに示す
ように、塗布量が大きくなって潤滑剤をＯリング１１に
薄く均一に塗布しにくくなる傾向にあるので、潤滑性
能、塗布作業性及び潤滑剤の製造コスト等を総合的に勘
案すると、潤滑剤の粘度は１０Ｐａ・ｓ以下、より好ま
しくは２Ｐａ・ｓ以下に抑えておくことが望ましい。However, even if the amount of the water-soluble polymer is increased more than necessary to increase the viscosity of the lubricant, the lubricating performance is not improved in proportion to the amount of the water-soluble polymer. As shown in Table 2 and the graph of FIG. 6, since the amount of application tends to be large and it is difficult to apply the lubricant to the O-ring 11 thinly and uniformly, lubrication performance, application workability, and production cost of the lubricant are reduced. In consideration of the above, it is desirable that the viscosity of the lubricant is kept to 10 Pa · s or less, more preferably 2 Pa · s or less.
【００３２】以上のことから、分子構造が直鎖状の水溶
性ポリマーによって水を増粘させた本発明の潤滑剤で
は、その粘度が０．４〜１０Ｐａ・ｓ、より好ましくは
１〜２Ｐａ・ｓになるように、水溶性ポリマーの配合量
を調整すればよく、特に、水溶性ポリマーとしてポリア
クリル酸ナトリウムを使用する場合は、ポリアクリル酸
ナトリウムを、概ね０．３５〜２．２重量％、より好ま
しくは０．５〜１．０重量％の範囲内で配合することに
よって、良好な潤滑性能及び塗布作業性を備えた潤滑剤
を廉価に製造することができる。From the above, the lubricant of the present invention in which the water is thickened by a water-soluble polymer having a linear molecular structure has a viscosity of 0.4 to 10 Pa · s, more preferably 1 to 2 Pa · s. The amount of the water-soluble polymer may be adjusted so as to obtain a water-soluble polymer. More preferably, by blending in the range of 0.5 to 1.0% by weight, a lubricant having good lubrication performance and coating workability can be produced at low cost.
【００３３】また、上述した各実施例は、配合されてい
る増粘安定剤、保存料及び予備分散用溶媒の全てが人体
に無害な物質であるので、給湯器、水栓器具、洗濯機、
食器洗浄機、温水洗浄便座といった安全性を重視する上
水機器における流路の接続等に適しているが、これに限
定されるものではなく、ガス通路の接続等、広範囲に使
用することができる。Further, in each of the above-mentioned embodiments, since all of the thickening stabilizer, preservative and pre-dispersion solvent are harmless to the human body, the water heater, faucet, washing machine,
Suitable for connection of flow passages in water equipment that emphasizes safety such as dishwashers and hot water flush toilet seats, but is not limited to this, and can be used in a wide range such as connection of gas passages. .
【００３４】なお、上述した各実施例では、増粘安定剤
としてポリアクリル酸ナトリウムを使用しているが、こ
れに限定されるものではなく、人体に無害で分子構造が
直鎖状であれば、種々の水溶性ポリマーを使用すること
ができる。In each of the above-described embodiments, sodium polyacrylate is used as a thickening stabilizer. However, the present invention is not limited to this. If the molecular structure is harmless to humans and the molecular structure is linear, And various water-soluble polymers can be used.
【００３５】また、上述した各実施例では、潤滑剤の長
期使用を考慮して、純水を使用すると共に保存料として
安息香酸ナトリウムを配合しているが、特に、長期使用
を考えないのであれば、保存料を配合する必要はなく、
通常の上水を使用することも可能である。また、使用す
る保存料は、安息香酸ナトリウムに限定されるものでは
なく、食品添加物として認可されている種々の保存料を
使用することができる。In each of the embodiments described above, pure water is used and sodium benzoate is blended as a preservative in consideration of the long-term use of the lubricant. If you do not need to add preservatives,
It is also possible to use normal tap water. Further, the preservative to be used is not limited to sodium benzoate, and various preservatives approved as food additives can be used.
【００３６】また、使用した潤滑剤が乾燥すると、配合
されている保存料が析出するので、保存料の配合量は、
０．０１〜１．０重量％の範囲内においてできるだけ小
量に抑えておくことが望ましい。When the used lubricant is dried, the preservative compounded therein is precipitated.
It is desirable to keep the amount as small as possible within the range of 0.01 to 1.0% by weight.
【００３７】また、上述した各実施例では、増粘安定剤
であるポリアクリル酸ナトリウムや保存料である安息香
酸ナトリウムを予備分散用溶媒であるエチルアルコール
に一旦分散させた後、この分散液を水に混合するように
しているが、必ずしも予備分散用溶媒を使用する必要は
なく、粉末状のポリアクリル酸ナトリウムや安息香酸ナ
トリウムを直接水に溶解させることも可能である。ただ
し、予備分散用溶媒を使用すると、粉末状のポリアクリ
ル酸ナトリウムや安息香酸ナトリウムが凝集しにくく、
短時間で均一に水に溶解させることができるという効果
がある。In each of the above-described embodiments, sodium polyacrylate as a thickening stabilizer and sodium benzoate as a preservative were once dispersed in ethyl alcohol as a pre-dispersion solvent, and then this dispersion was added. Although it is mixed with water, it is not always necessary to use a solvent for preliminary dispersion, and it is also possible to directly dissolve powdery sodium polyacrylate or sodium benzoate in water. However, when the pre-dispersion solvent is used, powdery sodium polyacrylate and sodium benzoate hardly aggregate,
There is an effect that it can be uniformly dissolved in water in a short time.
【００３８】また、人体に無害な予備分散用溶媒として
はエチルアルコール以外にグリセリン等を使用すること
もできるが、揮発性のあるエチルアルコールを予備分散
用溶媒として使用すると、潤滑剤が乾燥したときに、蒸
発してしまい、べたつくこともないので、ゴミ等が付着
しにくいという効果がある。As a pre-dispersion solvent which is harmless to the human body, glycerin and the like can be used in addition to ethyl alcohol. However, when volatile ethyl alcohol is used as a pre-dispersion solvent, the lubricant may be dried. In addition, since there is no evaporation and no stickiness, there is an effect that dust and the like hardly adhere.
【００３９】また、予備分散用溶媒の使用量も、保存料
と同様に最小限度に抑えておくことが望ましく、具体的
には、５〜１０重量％の範囲内で使用することが望まし
い。The amount of the pre-dispersing solvent used is desirably kept to a minimum as in the case of the preservative, and specifically, it is desirably used within the range of 5 to 10% by weight.
【図１】（ａ）、（ｂ）は潤滑性能の指針となる挿入荷
重の測定方法を説明するための説明図である。FIGS. 1A and 1B are explanatory diagrams for explaining a method of measuring an insertion load, which is a guide for lubrication performance.
【図２】潤滑性能の指針となる摩擦係数の測定方法を説
明するための説明図である。FIG. 2 is an explanatory diagram for explaining a method of measuring a coefficient of friction, which is a guide for lubrication performance.
【図３】（ａ）、（ｂ）は潤滑剤の塗布量の測定方法を
説明するための説明図である。FIGS. 3 (a) and 3 (b) are explanatory diagrams for explaining a method of measuring a coating amount of a lubricant.
【図４】潤滑剤の粘度と挿入荷重との関係を示すグラフ
である。FIG. 4 is a graph showing a relationship between a viscosity of a lubricant and an insertion load.
【図５】潤滑剤の粘度と摩擦係数との関係を示すグラフ
である。FIG. 5 is a graph showing a relationship between a viscosity of a lubricant and a coefficient of friction.
【図６】潤滑剤の粘度と塗布量との関係を示すグラフで
ある。FIG. 6 is a graph showing a relationship between a viscosity of a lubricant and a coating amount.
【図７】（ａ）、（ｂ）は給湯器における温水流路の接
続構造を示す断面図である。FIGS. 7A and 7B are cross-sectional views showing a connection structure of a hot water flow path in a water heater.
１０ 挿入部材 １１ Ｏリング ２０ 被挿入部材 ２１ 挿入穴 ３１ ゴムシート ３２ 真鍮丸棒 DESCRIPTION OF SYMBOLS 10 Insertion member 11 O-ring 20 Inserted member 21 Insertion hole 31 Rubber sheet 32 Brass round bar
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ１０Ｎ 20:00 Ｃ１０Ｎ 20:00 Ｚ 20:02 20:02 30:02 30:02 40:00 40:00 Ｇ Ｚ (72)発明者 清水 学 兵庫県神戸市中央区江戸町93番地 株式会 社ノーリツ内 (72)発明者 四方 稔之 大阪府大阪市港区福崎３−１−201 株式 会社ダイゾーニチモリ事業部大阪営業所内 (72)発明者 亀田 昭 茨城県猿島郡五霞町川妻2168 株式会社ダ イゾーニチモリ事業部生産・技術部内 Ｆターム(参考） 3H015 AE00 3L037 DB05 4H104 CB08C EA02Z EA17C FA01 LA01 PA38 PA50 QA05 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C10N 20:00 C10N 20:00 Z 20:02 20:02 30:02 30:02 40:00 40:00 GZ (72) Inventor: Manabu Shimizu 93, Edo-cho, Chuo-ku, Kobe-shi, Hyogo Prefecture Inside Noritz Co., Ltd. Within the sales office (72) Inventor Akira Kameda 2168 Kawazuma, Goka-machi, Sarushima-gun, Ibaraki Pref.
Claims (4)
に、人体に無害な直鎖状の水溶性ポリマーによって水を
増粘させたことを特徴とする潤滑剤。1. A lubricant characterized by increasing the viscosity of water with a linear water-soluble polymer harmless to the human body so as to have a viscosity of 0.4 Pa · s or more.
前記水溶性ポリマーの配合量を調整した請求項１に記載
の潤滑剤。2. The method of claim 2, wherein the viscosity does not exceed 10 Pa · s.
The lubricant according to claim 1, wherein the amount of the water-soluble polymer is adjusted.
ル酸ナトリウムを使用した請求項１または２に記載の潤
滑剤。3. The lubricant according to claim 1, wherein sodium polyacrylate is used as the water-soluble polymer.
または温水流路の接続を行った上水機器。4. A water supply device in which a water flow path or a hot water flow path is connected using the lubricant according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001218185A JP2002275493A (en) | 2001-01-09 | 2001-07-18 | Lubricating agent and clean water instrument |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001-1716 | 2001-01-09 | ||
| JP2001001716 | 2001-01-09 | ||
| JP2001218185A JP2002275493A (en) | 2001-01-09 | 2001-07-18 | Lubricating agent and clean water instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002275493A true JP2002275493A (en) | 2002-09-25 |
Family
ID=26607418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001218185A Pending JP2002275493A (en) | 2001-01-09 | 2001-07-18 | Lubricating agent and clean water instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002275493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014125492A (en) * | 2012-12-25 | 2014-07-07 | Nok Kluber Kk | Lubricant composition |
| JP2016180083A (en) * | 2015-03-25 | 2016-10-13 | 住鉱潤滑剤株式会社 | Aqueous lubricant composition |
Citations (6)
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|---|---|---|---|---|
| JPS5272063A (en) * | 1975-12-10 | 1977-06-16 | Yuken Kogyo Co Ltd | Lubricating composion for coupling |
| JPS5331066A (en) * | 1976-09-03 | 1978-03-23 | Kubota Ltd | Lubricant |
| JPS54154433A (en) * | 1978-05-18 | 1979-12-05 | Shiro Hasegawa | Torque stabilization of fastening material, the stabilized material, and torque stabilizer used for treatment |
| JPS6094498A (en) * | 1983-10-29 | 1985-05-27 | Matsumoto Yushi Seiyaku Kk | Lubricant for electric wire embedded in electric cable |
| JPH039996A (en) * | 1989-05-18 | 1991-01-17 | Roehm Gmbh | Water-based functional solution containing polymer thickener |
| JPH0559747A (en) * | 1991-08-30 | 1993-03-09 | Ohbayashi Corp | Lubrication for ground excavator |
-
2001
- 2001-07-18 JP JP2001218185A patent/JP2002275493A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5272063A (en) * | 1975-12-10 | 1977-06-16 | Yuken Kogyo Co Ltd | Lubricating composion for coupling |
| JPS5331066A (en) * | 1976-09-03 | 1978-03-23 | Kubota Ltd | Lubricant |
| JPS54154433A (en) * | 1978-05-18 | 1979-12-05 | Shiro Hasegawa | Torque stabilization of fastening material, the stabilized material, and torque stabilizer used for treatment |
| JPS6094498A (en) * | 1983-10-29 | 1985-05-27 | Matsumoto Yushi Seiyaku Kk | Lubricant for electric wire embedded in electric cable |
| JPH039996A (en) * | 1989-05-18 | 1991-01-17 | Roehm Gmbh | Water-based functional solution containing polymer thickener |
| JPH0559747A (en) * | 1991-08-30 | 1993-03-09 | Ohbayashi Corp | Lubrication for ground excavator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014125492A (en) * | 2012-12-25 | 2014-07-07 | Nok Kluber Kk | Lubricant composition |
| JP2016180083A (en) * | 2015-03-25 | 2016-10-13 | 住鉱潤滑剤株式会社 | Aqueous lubricant composition |
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