JP2919032B2 - Anti-seizure agent - Google Patents
Anti-seizure agentInfo
- Publication number
- JP2919032B2 JP2919032B2 JP24289590A JP24289590A JP2919032B2 JP 2919032 B2 JP2919032 B2 JP 2919032B2 JP 24289590 A JP24289590 A JP 24289590A JP 24289590 A JP24289590 A JP 24289590A JP 2919032 B2 JP2919032 B2 JP 2919032B2
- Authority
- JP
- Japan
- Prior art keywords
- seizure
- vacuum
- present
- seizure agent
- agent
- 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 - Fee Related
Links
Landscapes
- Lubricants (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は高温、高真空環境下で使用されるボルト、ナ
ツトに塗布することにより、焼付きをなくし、円滑な着
脱を与える焼付き防止剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention is an anti-seize agent which eliminates seizures and provides smooth attachment / detachment by applying to bolts and nuts used in a high temperature and high vacuum environment. It is about.
（従来の技術） 近年の機械技術の進歩は著しく、より厳しい環境下で
機械類が使用されるようになつてきており、例えば核融
合装置や各種真空装置の機器類は、高温・高真空下にさ
らされて用いられている。それらを構成する機械部品の
接合部分ではボルト、ナツトが数多く使用されており、
組立て、分解、修理に際しては、ボルト、ナツトの焼付
きは非常に重要な問題となつている。(Prior art) In recent years, mechanical technology has progressed remarkably, and machines have been used in more severe environments. For example, the equipment of fusion devices and various vacuum devices have been used under high temperature and high vacuum. It is used by being exposed to. Many bolts and nuts are used at the joints of the machine parts that make up them,
During assembly, disassembly and repair, seizure of bolts and nuts is a very important problem.
従来の焼付き防止剤の使用技術を見ると、装置のメン
テナンスの省力化、効率化の考えのもとに焼付き、錆ぴ
付き、腐蝕、かじり等の防止用として対処されてきた。
代表的な用途としては、タービン、内燃機関、石油化学
産業のバルブ類、ガラス及び鉄鋼関係のガス発生炉等に
使用されるネジ類に使用されている。又、焼付き防止剤
の内容では、高温や極圧条件下で使用されるため、種々
の工夫がなされているが、その多くは基本となる基油と
添加剤を組み合わせたペーストに関するものであつた。Looking at the conventional technology of using anti-seizure agents, measures have been taken to prevent seizure, rust, corrosion, galling, etc., from the viewpoint of labor saving and efficiency improvement of equipment maintenance.
Typical applications are used in turbines, internal combustion engines, valves in the petrochemical industry, and screws used in glass and steel related gas generating furnaces. In addition, various anti-seizure agents are used under high-temperature and extreme-pressure conditions, and various measures have been taken, but most of them relate to pastes that combine a basic base oil and additives. Was.
現況下、ペーストの基油には市場の焼付き防止剤の多
くは鉱油が使用されている。これらは高温・大気中での
使用を指向したものであるため、高真空中では放出ガス
量が多く、劣化損失により系内を汚染することが問題と
なる。添加物の面では黒鉛、二硫化モリブデン等の粉体
や銅、鉛、アルミニウム等の軟質金属が使用されてい
る。この場合、使用する添加物によつては酸化劣化によ
り成分変化を起こして、著しく性能を低下する欠点があ
つた。又、乾燥被膜ではコーテイングする添加物の性能
に起因して被膜が破損し、急激な性能低下を引き起こし
たり、性能のばらつきが大きいという講造上の問題があ
る。At present, mineral oil is used as the base oil for pastes in many anti-seizure agents on the market. Since these are intended for use in a high temperature and atmosphere, a large amount of gas is released in a high vacuum, and there is a problem in that the inside of the system is contaminated by deterioration loss. In terms of additives, powders such as graphite and molybdenum disulfide and soft metals such as copper, lead and aluminum are used. In this case, depending on the additive used, there is a disadvantage that the components change due to oxidative deterioration and the performance is remarkably reduced. In addition, in the case of a dried film, there is a problem in that the film is damaged due to the performance of the additive to be coated, causing a sudden decrease in performance and a large variation in performance.
又、高温・高真空下で使用するペースト状の焼付き防
止剤を考えた場合、基油には発生ガスが少なく真空系内
を汚染しにくいもの、添加剤には大気、真空のどちらか
の雰囲気下においても高温で安定であるものを選定する
ことが重要となる。また塗布面に付着して優れた焼付き
防止剤を発揮するように、基油、添加剤の配合及びなじ
み等に工夫が必要である。Also, when considering paste-type anti-seizure agents used at high temperatures and high vacuums, base oils that generate less gas and are less likely to contaminate the vacuum system, and additives that are either air or vacuum It is important to select a material that is stable at high temperatures even in an atmosphere. Further, in order to exhibit an excellent anti-seizure agent by adhering to the coated surface, it is necessary to devise a base oil, additives and blending-in, etc.
（発明が解決しようとする課題） 本発明の目的は以上の点を考慮し、高温・高真空下で
優れた性能を発揮する焼付き防止剤を提供することにあ
る。(Problems to be Solved by the Invention) An object of the present invention is to provide an anti-seizure agent which exhibits excellent performance under high temperature and high vacuum in consideration of the above points.
（課題を解決するための手段） 本発明は（イ）アルキル置換テトラフエニルエーテル
（ただし置換基数が１〜４個、置換基の炭素数が６〜20
個）及び （ロ）平均粒度0.1〜50μｍの窒化硼素20〜70重量％か
らなることを特徴とする焼付き防止剤に係る。(Means for Solving the Problems) The present invention relates to (a) an alkyl-substituted tetraphenyl ether (provided that the number of substituents is 1 to 4 and the number of carbon atoms of the substituent is 6 to 20)
And b) 20 to 70% by weight of boron nitride having an average particle size of 0.1 to 50 μm.
本発明においては基油には鉱油に比べて高真空中での
発生ガス量が少なく真空系内を汚染しにくいアルキル置
換テトラフエニルエーテルを、添加剤には高温安定性に
優れる窒化硼素を用いた焼付き防止剤を開発した。それ
らを用いて大気、真空雰囲気における各種ボルト・ナツ
ト材質を用いての焼付き防止性を調べた結果、本発明の
焼付き防止剤は、市場の焼付き防止剤に比べて優れた焼
付き防止性を有することを見い出した。In the present invention, as the base oil, an alkyl-substituted tetraphenyl ether which generates a smaller amount of gas in a high vacuum and hardly contaminates the vacuum system than the mineral oil is used, and as an additive, boron nitride which is excellent in high-temperature stability is used. The anti-seizure agent was developed. As a result of examining the anti-seizure properties of various bolts and nuts in air and vacuum atmospheres using these materials, the anti-seizure agent of the present invention is superior to the anti-seizure agent on the market. It has been found that it has the property.
即ち本発明は、発生ガス量が少なく、真空系内を汚染
しにくい基油に、上記添加剤を組み合わせたときに優れ
た高温安定性、真空特性、焼付き防止性を示し、高温、
高真空下で使用されるボルト・ナツト等の焼付き防止に
優れた性能を発揮することを確認したことに基づく。That is, the present invention has a small amount of generated gas, and shows excellent high-temperature stability, vacuum characteristics, and anti-seizure properties when the above additives are combined with a base oil that does not easily contaminate the inside of a vacuum system.
Based on the fact that it has been confirmed that it exhibits excellent performance in preventing seizure of bolts and nuts used under high vacuum.
本発明で基油として用いられるアルキル置換テトラフ
エニルエーテル（置換基数１〜４、置換基の炭素数６〜
20）は他の潤滑油類と比較すると熱安定性が高く、高温
下でも蒸発量が少ない。例えば、蒸発量の点では、８×
10-6torrの減圧下、150℃の条件下では、精製鉱油（拡
散ポンプ油用として、軽沸分を蒸留で除いた鉱油）と比
較しても48時間での精製鉱油の積算損耗量（蒸発による
損耗と熱分解による損耗の和）が98％であるのに対し、
アルキル置換テトラフエニルエーテルは10％と蒸発量は
極めて少ない。The alkyl-substituted tetraphenyl ether used as a base oil in the present invention (the number of substituents is 1 to 4, and the number of carbon atoms of the substituent is 6 to 6)
20) has higher thermal stability compared to other lubricating oils and has less evaporation even at high temperatures. For example, in terms of evaporation, 8 ×
Under reduced pressure of 10 -6 torr and 150 ° C, the accumulated loss of refined mineral oil in 48 hours (compared to refined mineral oil (mineral oil with light boiling point removed by distillation for diffusion pump oil)) ( The sum of the loss due to evaporation and the loss due to thermal decomposition) is 98%,
Alkyl-substituted tetraphenyl ether has a very low evaporation of 10%.
又、分子講造の安定性からアルキル置換テトラフエニ
ルエーテルは、鉱油と比較すると、熱分解ガスの発生量
も少ない。In addition, from the viewpoint of the stability of molecular synthesis, the alkyl-substituted tetraphenyl ether generates a smaller amount of pyrolysis gas as compared with mineral oil.
大気下においては、基油は高温にさらされると分解ま
たは蒸発して大気中に拡散するが、真空中では分解物は
真空装置系内に付着し汚染したり、排気装置内にとどま
つて排気能力を低下させたりする。アルキル置換テトラ
フエニルエーテルを基油に用いることにより、蒸発物を
減らしたり、分解生成物を減らして真空系内の汚染を少
なくすることができる。Under the atmosphere, base oil decomposes or evaporates when exposed to high temperatures and diffuses into the atmosphere.However, in a vacuum, the decomposed substance adheres to the vacuum system and contaminates it, or stays in the exhaust system and exhaust capacity. Or decrease. By using an alkyl-substituted tetraphenyl ether as a base oil, it is possible to reduce evaporation and decomposition products and reduce contamination in a vacuum system.
添加剤の窒化硼素は高温において安定であり、従来使
われている二硫化モリブデンや軟質金属に比べボルト・
ナツト材として使われるステンレス、モリブデン等との
反応性が極めて低いので反応による溶着もなく、材質を
変化させにくい。このことが焼付き防止性に現われ、本
発明品は優れた性能を示す。Boron nitride as an additive is stable at high temperatures and has a higher bolt / bolt ratio than molybdenum disulfide and soft metals conventionally used.
Since it has extremely low reactivity with stainless steel, molybdenum, etc. used as nut material, there is no welding due to the reaction, and the material is not easily changed. This appears in anti-seizure properties, and the product of the present invention shows excellent performance.
基油の量については、多過ぎると液垂れを起こし、実
使用における性能低下をきたし、少な過ぎると塗布性が
悪くなり、使用に適さないため、30〜80重量％が好まし
い。As for the amount of the base oil, if it is too large, dripping will occur and performance in actual use will be reduced, and if it is too small, applicability will deteriorate and it will not be suitable for use.
窒化硼素としては例えばデンカボロナイトライド［電
機化学工業社製］、ショウビーエヌ（商標名）UHP［昭
和電工社製］ボロンナイトライドHP［川崎製鉄社製］が
ある。窒化硼素の粒度は0.1〜50μｍの範囲がペースト
としての安定性の面から好ましく、その量は20〜70重量
％が好ましい。Examples of the boron nitride include Denkaboronitride [produced by Denki Kagaku Kogyo Co., Ltd.] and SHOWN (trade name) UHP [produced by Showa Denko KK] boron nitride HP [produced by Kawasaki Steel Corporation]. The particle size of boron nitride is preferably in the range of 0.1 to 50 μm from the viewpoint of stability as a paste, and the amount is preferably 20 to 70% by weight.
本発明の焼付き防止剤は、常法に従って製造すること
ができる。例えば、本発明の焼付き防止剤は次のように
して製造することができる。The anti-seizure agent of the present invention can be produced according to a conventional method. For example, the anti-seizure agent of the present invention can be produced as follows.
即ち、所定量の基油と所定量の添加剤を加え撹拌・混
合する。混合装置は通常のミキサー、例えばダブルプラ
ネタリーミキサーを用いて行うことができる。混合温度
は通常、室温で行われるが、真空下での使用を考慮し、
脱ガス操作を兼ねて70〜100℃の昇温下で行うことが望
ましい。混合時間は１〜３時間で十分である。That is, a predetermined amount of a base oil and a predetermined amount of an additive are added and stirred and mixed. The mixing device can be carried out using an ordinary mixer, for example, a double planetary mixer. The mixing temperature is usually performed at room temperature, but considering use under vacuum,
It is desirable to perform the degassing operation at a temperature of 70 to 100 ° C. at the same time. A mixing time of 1 to 3 hours is sufficient.
得られた混合物を次に常法に従つて均質混合処理をす
る。この均質混合は、例えばマイコロイダー、ホモジナ
イザーあるいはロール処理によつて行うことができる。
均質混合処理温度及び時間は、60〜120℃、10〜60分で
ある。The obtained mixture is then subjected to a homogenous mixing treatment according to a conventional method. This homogenous mixing can be performed by, for example, a mycolloider, a homogenizer, or a roll treatment.
The homogenous mixing temperature and time are 60 to 120 ° C for 10 to 60 minutes.
基油と添加剤を均質に混合したあと、再び上記の混合
装置を用いて１〜10torr減圧下で１時間混合し、脱泡を
行うことにより所望の焼付き防止剤が得られる。かくし
て、前記の成分の配合によつて、後期実施例で例証され
るように、高温・高真空下で優れた性能を有する焼付き
防止剤が得られる。After homogeneously mixing the base oil and the additives, the mixture is again mixed under reduced pressure of 1 to 10 torr for 1 hour by using the above-described mixing apparatus, and defoaming to obtain a desired anti-seizing agent. Thus, the combination of the above components provides an anti-seizure agent having excellent performance under high temperature and high vacuum, as exemplified in the later examples.
（実施例） 以下、本発明に係る焼付き防止剤を製造し、大気、真
空の両雰囲気下及び各種ボルト・ナツト材質を用いての
焼付き防止性について、一般に市場で広く用いられてい
る従来品（比較品１〜２）との比較試験を実施した詳細
を説明する。ただし、この実施例は本発明を説明するも
のであつて、本発明を限定するものではない。(Examples) Hereinafter, the anti-seizure agent according to the present invention is manufactured, and the anti-seizure property in both atmosphere and vacuum and using various bolts and nuts materials is examined. The details of the comparison test with the products (Comparative products 1 and 2) will be described. However, this example illustrates the present invention and does not limit the present invention.
実施例１ アルキル置換テトラフエニルエーテル（但し炭素数16
からなる置換基数が２個のものを主成分とし、置換基数
が１〜４個の混合物）550gに窒化硼素450gを加え70℃で
２時間撹拌・混合し、その後マイコロイダーを用いた均
一化処理、脱泡処理を行い、目的とする焼付き防止剤を
得た。Example 1 Alkyl-substituted tetraphenyl ether (however, carbon number 16
A mixture of 1 to 4 substituents consisting of 2 main components), 450 g of boron nitride added to 550 g, stirred and mixed at 70 ° C. for 2 hours, and then homogenized using a mycolloider After that, defoaming treatment was performed to obtain a desired anti-seizure agent.
この焼付き防止剤をステンレス製ボルト・ナツトワツ
シヤーの接触部分に均一に塗布し、130kgf・cmで締め付
ける。その後460℃、10-6torrの条件で48時間放置した
後の緩め時のトルクを測定し、焼付き防止性を判定し
た。結果を第１表に示す。This anti-seizure agent is evenly applied to the contact portion of the stainless steel bolt / nut washer and tightened at 130 kgf · cm. Thereafter, the torque at the time of loosening after being left for 48 hours at 460 ° C. and 10 −6 torr was measured, and the anti-seizure property was determined. The results are shown in Table 1.
従来品としては、基油に鉱油を用い、添加剤に銅を用
いた品（比較品１）、基油に鉱油を用い、添加剤に銅・
鉛・二硫化モリブデン・黒鉛を用いた品（比較品２）を
選定した。これらを用いて実施例１と同様の試験を行つ
た結果を第１表に示した。Conventional products include mineral oil as base oil and copper as additive (Comparative Product 1), mineral oil as base oil, and copper / additive as additive.
A product using lead, molybdenum disulfide, and graphite (comparative product 2) was selected. Table 1 shows the results of the same test as in Example 1 using these.
締め付けたトルクと同じトルクで緩めることができれ
ば焼付きが起こつていないことであるから、緩めトルク
が締め付けトルクとほぼ同等であれば良好な焼付き防止
剤であることになる。緩めトルクの値が大きいと焼付き
が起こつていることを示す。If it can be loosened with the same torque as the tightening torque, it means that seizure has not occurred. Therefore, if the loosening torque is almost equal to the tightening torque, it is a good anti-seizure agent. A large value of the loosening torque indicates that seizure has occurred.
第１表から明らかなように、本発明に係る焼付き防止
剤は、大気、真空に拘わらず一定した焼付き防止性を示
し、従来品の焼付き防止剤以上であり、大気中では最も
優れているいことを示している。As is clear from Table 1, the anti-seizure agent according to the present invention exhibits a constant anti-seizure property regardless of air or vacuum, and is superior to the conventional anti-seizure agent. It indicates that
（発明の効果） 本発明によれば、基油には発生ガス量が少なく真空系
内を汚染しにくいもの、添加剤には大気、真空のいずれ
の雰囲気においても高温で安定であるものを選定し、適
量で配合することにより、高温・高真空下で優れた性能
を示す焼付き防止剤を得ることができる。本発明で使用
するアルキル置換テトラフエニルエーテルは、その講造
からも耐放射線性に優れていることが明らかであり、放
射線環境での使用にも適している。また本発明に係る添
加剤は、従来の添加剤が黒色系であるのに対して、白色
であるため作業環境の汚染の問題も少ない。(Effects of the Invention) According to the present invention, a base oil that has a small amount of generated gas and that does not easily contaminate the inside of a vacuum system is selected, and an additive that is stable at a high temperature in both air and vacuum atmospheres is selected. However, by blending in an appropriate amount, an anti-seizure agent exhibiting excellent performance under high temperature and high vacuum can be obtained. The alkyl-substituted tetraphenyl ether used in the present invention is apparently excellent in radiation resistance from its training, and is suitable for use in a radiation environment. In addition, the additive according to the present invention is white in contrast to the conventional additive which is black, and thus has less problems of contamination of the working environment.
又、硫化物を含むものは高温下で硫黄酸化物ができ、
黒色の硫化膜が金属表面につくが、本発明の焼付き防止
剤では形成しない。In addition, those containing sulfides form sulfur oxides at high temperatures,
A black sulfide film adheres to the metal surface, but is not formed by the anti-seizure agent of the present invention.
従つて、本発明の焼付き防止剤は、高温・高真空下で
使用される構造物及び機械部品の連結部分、例えばフラ
ンジ、バルブ等のボルト・ナツトの焼付き防止剤として
優れた性能を発揮することができる。Therefore, the anti-seizure agent of the present invention exhibits excellent performance as an anti-seizure agent for bolts and nuts such as flanges, valves, etc., at connecting parts of structures and machine parts used under high temperature and high vacuum. can do.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 曽田 孝雄 兵庫県西宮市芦原町10番33号 株式会社 松村石油研究所内 (72)発明者 蟹江 敏広 兵庫県西宮市芦原町10番33号 株式会社 松村石油研究所内 (72)発明者 赤田 民生 兵庫県西宮市芦原町10番33号 株式会社 松村石油研究所内 (56)参考文献 特開 平２−248496（ＪＰ，Ａ) 特開 昭61−272291（ＪＰ，Ａ) 特開 昭62−277494（ＪＰ，Ａ) 米国特許3294682（ＵＳ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C10M 105/18 C10M 125/26,103/00 C10N 30:08 C10N 20:06 C10N 40:00 ＣＡ（ＳＴＮ) ＲＥＧＩＳＴＲＹ（ＳＴＮ)──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takao Soda 10-33, Ashihara-cho, Nishinomiya-shi, Hyogo Inside the Matsumura Petroleum Institute Co., Ltd. Inside the Petroleum Research Laboratory (72) Inventor Tamio Akada 10-33, Ashihara-cho, Nishinomiya-shi, Hyogo Pref. Matsumura Petroleum Research Institute Co., Ltd. (56) References JP-A-2-248496 (JP, A) JP-A-61-272291 (JP) , A) JP-A-62-277494 (JP, A) U.S. Pat. No. 3,294,682 (US, A) (58) Fields investigated (Int. Cl. 6 , DB name) C10M 105/18 C10M 125 / 26,103 / 00 C10N 30 : 08 C10N 20:06 C10N 40:00 CA (STN) REGISTRY (STN)
Claims (1)
ル（ただし置換基数が１〜４個、置換基の炭素数が６〜
20個） 及び（ロ）平均粒度0.1〜50μｍの窒化硼素20〜70重量
％からなることを特徴とする焼付き防止剤。(1) an alkyl-substituted tetraphenyl ether (provided that the number of substituents is from 1 to 4 and the number of carbon atoms of the substituent is from 6 to
20) and (ii) 20 to 70% by weight of boron nitride having an average particle size of 0.1 to 50 µm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24289590A JP2919032B2 (en) | 1990-09-13 | 1990-09-13 | Anti-seizure agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24289590A JP2919032B2 (en) | 1990-09-13 | 1990-09-13 | Anti-seizure agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04122795A JPH04122795A (en) | 1992-04-23 |
| JP2919032B2 true JP2919032B2 (en) | 1999-07-12 |
Family
ID=17095817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24289590A Expired - Fee Related JP2919032B2 (en) | 1990-09-13 | 1990-09-13 | Anti-seizure agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2919032B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080038083A1 (en) * | 2006-07-17 | 2008-02-14 | General Electric Company | Fasteners Coated with Boron Nitride and Means for Securing Fasteners |
-
1990
- 1990-09-13 JP JP24289590A patent/JP2919032B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04122795A (en) | 1992-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5086502B2 (en) | Silicone resin adhesive dry film lubricant | |
| KR930700629A (en) | Lubricant for coolant heat transfer liquid | |
| US5000863A (en) | Lubrication boosting additives comprising organic titanium compounds and lubricating oil compositions comprising the same | |
| KR20070075309A (en) | Boron nitride based lubricant additive | |
| JP2919032B2 (en) | Anti-seizure agent | |
| CN111117726A (en) | Antirust and environment-friendly lubricating oil composition | |
| BG63604B1 (en) | Compositions of lubrication grease | |
| EP0968262B1 (en) | Open gear lubricants | |
| JP4841341B2 (en) | High thermal conductivity compound | |
| JP4780363B2 (en) | Lubricating grease composition | |
| JP3911052B2 (en) | Lubricant composition | |
| CN100335600C (en) | Ion liquid lubricant | |
| JPS59174699A (en) | Lubricating film for preventing seizing of metal sliding part under high face pressure and prevention of seizing | |
| US4787993A (en) | Lubricant | |
| JPH0575797B2 (en) | ||
| CN110791357B (en) | Anti-radiation lubricating grease and preparation method thereof | |
| JP3772236B2 (en) | Anti-seizure member and manufacturing method thereof | |
| JPS63291994A (en) | Lubrication oil | |
| JPS61266494A (en) | Lubricating oil used in flon atomosphere | |
| JP2001303085A (en) | Screw seizing preventive for high temperature | |
| EP0308759B1 (en) | Shockproof, wearproof metal lubricant, with restoring action and relative manufacturing process | |
| EP3794162B1 (en) | Lubricants with in-situ formation of dlc layers | |
| CN1242031C (en) | Polyisobutylene lubricating agent | |
| RU2570403C2 (en) | Lubricating composition | |
| JPH06240177A (en) | Metallic material having dry lubricating coating film and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20080423 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090423 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |