JPWO2010010789A1 - 導電性グリース - Google Patents
導電性グリース Download PDFInfo
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- JPWO2010010789A1 JPWO2010010789A1 JP2010521658A JP2010521658A JPWO2010010789A1 JP WO2010010789 A1 JPWO2010010789 A1 JP WO2010010789A1 JP 2010521658 A JP2010521658 A JP 2010521658A JP 2010521658 A JP2010521658 A JP 2010521658A JP WO2010010789 A1 JPWO2010010789 A1 JP WO2010010789A1
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- Prior art keywords
- conductive grease
- fluorine
- weight
- oil
- conductive
- Prior art date
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- 239000004519 grease Substances 0.000 title claims abstract description 47
- 239000003921 oil Substances 0.000 claims abstract description 51
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011737 fluorine Substances 0.000 claims abstract description 33
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 33
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 23
- 239000002562 thickening agent Substances 0.000 claims abstract description 21
- 239000011164 primary particle Substances 0.000 claims abstract description 17
- 239000006229 carbon black Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 241000872198 Serjania polyphylla Species 0.000 claims abstract 3
- 238000005096 rolling process Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 22
- -1 perfluoro Chemical group 0.000 description 19
- 239000002199 base oil Substances 0.000 description 13
- 235000019241 carbon black Nutrition 0.000 description 12
- 239000000203 mixture Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Chemical compound [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010556 emulsion polymerization method Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000005251 gamma ray Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical compound FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007539 photo-oxidation reaction Methods 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000005846 sugar alcohols Chemical class 0.000 description 2
- 238000010558 suspension polymerization method Methods 0.000 description 2
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- OFWDLJKVZZRPOX-UHFFFAOYSA-N 2,2,3,3-tetrafluorooxetane Chemical compound FC1(F)COC1(F)F OFWDLJKVZZRPOX-UHFFFAOYSA-N 0.000 description 1
- MDWVSAYEQPLWMX-UHFFFAOYSA-N 4,4'-Methylenebis(2,6-di-tert-butylphenol) Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 MDWVSAYEQPLWMX-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- PGFXOWRDDHCDTE-UHFFFAOYSA-N hexafluoropropylene oxide Chemical compound FC(F)(F)C1(F)OC1(F)F PGFXOWRDDHCDTE-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical class [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 125000005004 perfluoroethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 150000002990 phenothiazines Chemical class 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- DOIRQSBPFJWKBE-UHFFFAOYSA-N phthalic acid di-n-butyl ester Natural products CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/06—Particles of special shape or size
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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- C10M2201/041—Carbon; Graphite; Carbon black
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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- C10M2201/041—Carbon; Graphite; Carbon black
- C10M2201/0413—Carbon; Graphite; Carbon black used as base material
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/105—Silica
- C10M2201/1056—Silica used as thickening agents
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- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/0606—Perfluoro polymers used as base material
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- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
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- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
RfO(C3F6O)p(C2F4O)q(CF2O)rRf
で表わされるものが使用される。ここで、Rfはパーフルオロメチル基、パーフルオロエチル基など、炭素数1〜5のパーフルオロ低級アルキル基であり、C3F6O基、C2F4O基およびCF2O基はランダムに結合しており、p+q+r=2〜200で、p,qまたはrは0であり得る。このような一般式で表わされるポリエーテル系ふっ素油の具体例としては、以下のようなものがある。
ここで、mは2〜200で、これはヘキサフルオロプロペンの光酸化重合で生成した先駆体を完全にふっ素化することにより、あるいはふっ化セシウム触媒の存在下にヘキサフルオロプロペンオキシドをアニオン重合させ、得られた末端−CF(CF3)COF基を有する酸フロリド化合物をふっ素ガス処理することにより得られる。
ここで、CF(CF3)CF2O基およびCF2O基はランダムに結合しており、m+n=3〜200、m:n=(10:90)〜(90:10)であり、これはヘキサフルオロプロペンの光酸化重合で生成した先駆体を完全にふっ素化することにより得られる。
ここで、m+n=3〜200であり、m:n=(10:90)〜(90:10)であり、これはテトラフルオロエチレンの光酸化重合で生成した先駆体を完全にふっ素化することにより得られる。
(4)F(CF2CF2CF2O)nCF2CF3
ここでn=2〜100であり、これはふっ化セシウム触媒の存在下に2,2,3,3−テトラフルオロオキセタンをアニオン重合させ、得られた含ふっ素ポリエーテル(CH2CF2CF2O)nを160〜300℃の紫外線照射下でふっ素ガス処理することにより得られる。具体例として挙げた以上のふっ素油は、単独もしくは混合して用いることができるが、コストパーフォーマンスの点からは、上記(1)または(2)のフッ素油が好んで用いられる。
4種類のフッ素油基油A〜Dを用い、カーボンブラックとしてA〜Cの3種類のものを用い、また増稠剤としてA〜Dの4種類のものを用い、表の配合組成(単位:重量%)に示すように、実施例1〜11および比較例1〜5のグリースを調製した。
《基油》
A)RfO〔CF(CF3)CF2O〕mRf 動粘度(40℃) 400mm2/秒
B)RfO〔CF(CF3)CF2O〕mRf 動粘度(40℃) 230mm2/秒
C)RfO〔CF(CF3)CF2O〕mRf 動粘度(40℃) 100mm2/秒
D)RfO〔CF(CF3)CF2O〕m(CF2O)nRf 動粘度(40℃) 390mm2/秒
《カーボンブラック》
A)DBP吸油量 68ml/100g
B)DBP吸油量140ml/100g
C)DBP吸油量360ml/100g
《増稠剤》
A)ポリテトラフルオロエチレン
(乳化重合法、融点323〜333℃、平均一次粒子径0.12μm)
B)ポリテトラフルオロエチレン
(乳化重合法、融点328〜338℃、平均一次粒子径0.3μm)
C)ポリテトラフルオロエチレン
(懸濁重合法、融点320〜330℃、平均一次粒子径約9μm)
D)ポリテトラフルオロエチレン
(懸濁重合法、融点313〜323℃、平均一次粒子径約5μm)
得られたグリースについて、次のような試験を行った。
1)稠度試験
実施例1〜11および比較例1〜5の各導電性グリースについて、下記条件で稠度を測定した。
ASTM D217に対応するJIS K2220.5.7に準拠
25℃、60W
2)離油度の確認試験
実施例1〜11および比較例1〜5の各導電性グリースについて、下記条件で離油度(単位:重量%)を測定した。
《測定条件》
ASTM D6184に対応するJIS K2220.5.7に準拠
温度:250℃
時間:24時間
3)体積抵抗率の測定試験
実施例1〜11および比較例1〜5の各導電性グリースについて、10cm径の2枚の円板状電極間(間隙1mm)にグリースを挟み、30分後の抵抗値と試料厚さ、電極面積とから、次式により体積抵抗率を求めた。
ρv=Rv×(s/t)
ρv:体積抵抗率(単位:Ω・cm)
Rv:30分後の抵抗値(単位:Ω)
s:電極面積(単位:cm2)
t:試料厚さ(単位:cm)
自動変速機用コントロールスイッチ、レバーコントロールスイッチ、プッシュスイッチ等の耐熱性、せん断安定性、耐摩耗性が要求される電気接点部分。
ビスカスカップリングのXリング部分、排気ブレーキのOリング等、耐熱性、せん断安定性が要求されるゴムシール部分。
樹脂製造装置:フィルムテンター、フィルムラミネータ、バンバリーミキサ等の耐熱性、耐荷重性が要求される転がり軸受、すべり軸受、ピン、オイルシール、ギヤ等。
製紙装置:耐熱性、耐荷重性が要求されるコルゲートマシン等の転がり軸受、すべり軸受、ピン、オイルシール、ギヤ等。
木材加工装置:耐熱性、耐荷重性が要求されるコンチプレス等の転がり軸受、すべり軸受、ピン、オイルシール、ギヤ等。
食品用機械:パン焼器、オーブン等のリニアガイド、耐熱性、耐摩耗性が要求される転がり軸受等。
その他:半導体製造装置、液晶製造装置、電子顕微鏡等の真空ポンプにおける転がり軸受、ギヤ等。
電力制御装置の遮断機の転がり軸受、自動車のヘッドライト、シート、ABS、ドアロック、ドアヒンジ、クラッチブースタ、2分割フライホイール、ウィンドレギュレータ、ボールジョイント、クラッチブースタ等の転がり軸受、すべり軸受、ギヤ、摺動部等。
パーソナルコンピュータの冷却ファン、掃除機、洗濯機等の転がり軸受、すべり軸受、オイルシール等。
家電・情報機器、工作機械のスピンドルまたはサボモータ等の転がり軸受、すべり軸受等。
携帯電話、パーソナルコンピュータのヒンジ摺動部等。
Claims (11)
- フッ素油、導電性物質および増稠剤からなる導電性グリースにおいて、導電性物質としてDBP吸油量が250ml/100g以下のカーボンブラック5〜20重量%および増稠剤として平均一次粒子径が1.0μm以下の含フッ素樹脂粒子2〜15重量%をぞれぞれ配合してなる導電性グリース。
- DBP吸油量が150ml/100g以下のカーボンブラックが用いられた請求項1記載の導電性グリース。
- 含フッ素樹脂粒子がPTFE粒子である請求項1記載の導電性グリース。
- 平均一次粒子径が0.1〜0.5μmのPTFE粒子が用いられた請求項3記載の導電性グリース。
- 含フッ素樹脂粒子が2〜9重量%添加された請求項1記載の導電性グリース。
- 含フッ素樹脂粒子が2〜9重量%添加された請求項3記載の導電性グリース。
- 含フッ素樹脂粒子が3〜7重量%添加された請求項1記載の導電性グリース。
- 含フッ素樹脂粒子が3〜7重量%添加された請求項3記載の導電性グリース。
- 転がり軸受またはすべり軸受に用いられる請求項1記載の導電性グリース。
- 静電転写複写機の感光ドラムおよび定着ロールの少くとも一方の軸受に用いられる請求項9記載の導電性グリース。
- 静電転写複写機のブッシュおよび/または接点部分に用いられる請求項1記載の導電性グリース。
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