JPH0228295A - Grease composition - Google Patents
Grease compositionInfo
- Publication number
- JPH0228295A JPH0228295A JP17706688A JP17706688A JPH0228295A JP H0228295 A JPH0228295 A JP H0228295A JP 17706688 A JP17706688 A JP 17706688A JP 17706688 A JP17706688 A JP 17706688A JP H0228295 A JPH0228295 A JP H0228295A
- Authority
- JP
- Japan
- Prior art keywords
- group
- base oil
- compound
- grease composition
- thickener
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 27
- 239000004519 grease Substances 0.000 title claims description 24
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 239000002199 base oil Substances 0.000 claims abstract description 18
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 18
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 18
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 10
- 229920002396 Polyurea Polymers 0.000 claims abstract description 8
- 239000013078 crystal Substances 0.000 claims abstract description 7
- 230000008034 disappearance Effects 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 10
- -1 methyl- substituted methylene Chemical group 0.000 abstract description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract description 4
- IYABWNGZIDDRAK-UHFFFAOYSA-N allene Chemical group C=C=C IYABWNGZIDDRAK-UHFFFAOYSA-N 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 description 17
- 238000012360 testing method Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 125000001931 aliphatic group Chemical group 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- GDPISEKNRFFKMM-UHFFFAOYSA-N 1,3-diphenylpropan-2-ylbenzene Chemical class C=1C=CC=CC=1CC(C=1C=CC=CC=1)CC1=CC=CC=C1 GDPISEKNRFFKMM-UHFFFAOYSA-N 0.000 description 4
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 4
- 239000002480 mineral oil Substances 0.000 description 4
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- ZOYJYNLKJSQUEM-UHFFFAOYSA-N 1-benzyl-2-phenylbenzene Chemical group C=1C=CC=C(C=2C=CC=CC=2)C=1CC1=CC=CC=C1 ZOYJYNLKJSQUEM-UHFFFAOYSA-N 0.000 description 3
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- GNWGXASUBJBGGD-UHFFFAOYSA-N triazin-4-ylurea Chemical class NC(=O)NC1=CC=NN=N1 GNWGXASUBJBGGD-UHFFFAOYSA-N 0.000 description 3
- 150000003918 triazines Chemical class 0.000 description 3
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 125000000755 henicosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 125000002960 margaryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001196 nonadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000002958 pentadecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical group C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical class O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 description 1
- PKQYSCBUFZOAPE-UHFFFAOYSA-N 1,2-dibenzyl-3-methylbenzene Chemical compound C=1C=CC=CC=1CC=1C(C)=CC=CC=1CC1=CC=CC=C1 PKQYSCBUFZOAPE-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
- LOAFMPJXXUEQJE-UHFFFAOYSA-N 1-benzyl-2-(1-phenylethyl)benzene Chemical class C=1C=CC=C(CC=2C=CC=CC=2)C=1C(C)C1=CC=CC=C1 LOAFMPJXXUEQJE-UHFFFAOYSA-N 0.000 description 1
- AGPLQTQFIZBOLI-UHFFFAOYSA-N 1-benzyl-4-phenylbenzene Chemical group C=1C=C(C=2C=CC=CC=2)C=CC=1CC1=CC=CC=C1 AGPLQTQFIZBOLI-UHFFFAOYSA-N 0.000 description 1
- CJQSYAQTWMTIJY-UHFFFAOYSA-N 1-phenyl-2-(1-phenylethyl)benzene Chemical compound C=1C=CC=C(C=2C=CC=CC=2)C=1C(C)C1=CC=CC=C1 CJQSYAQTWMTIJY-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- KUECRWGCMYEOED-UHFFFAOYSA-N 2-benzyl-1-methyl-3-phenylbenzene Chemical group C=1C=CC=CC=1CC=1C(C)=CC=CC=1C1=CC=CC=C1 KUECRWGCMYEOED-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical group 0.000 description 1
- 125000002355 alkine group Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229940102253 isopropanolamine Drugs 0.000 description 1
- 125000002463 lignoceryl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000002469 tricosyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、増稠剤および合成ナフテン系炭化水素油か
らなるグリース組成物に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a grease composition comprising a thickener and a synthetic naphthenic hydrocarbon oil.
〈従来の技術〉
合成ナフテン系炭化水素は、グリース組成物の基油とし
て用いられているが、グリースが用いられる機械装置の
発展に伴い、これらの機構を効果的に機能させるために
適当なグリースを選択する必要があるばかりでなく、高
い性能を有するものが要求される。<Prior Art> Synthetic naphthenic hydrocarbons are used as base oils in grease compositions, but with the development of mechanical devices in which grease is used, it has become necessary to develop suitable greases to make these mechanisms function effectively. Not only is it necessary to select one, but one with high performance is also required.
通常のグリース組成物の基油になる潤滑剤は、石油系の
油から製造された潤滑油成分が用いられる。しかしなが
らこのような鉱油系のものは精製したものであっても、
苛酷な条件において十分機能させることのできる性質を
有しないことは良く知られている。従って、このような
潤滑油分に種々の添加剤を加えて性能を向上させること
が一般に行われている。しかしながら、添加剤を加える
ことによりある種の性能は改善されるとしても、腐食の
増大、スラッジ生成量の増大等の問題が生じ、添加剤の
添加だけでは十分な性能をもたらすことは困難である。A lubricant component made from petroleum oil is used as the base oil of a typical grease composition. However, even if these mineral oils are refined,
It is well known that they do not have the properties that allow them to function satisfactorily under harsh conditions. Therefore, it is common practice to add various additives to such lubricating oils to improve their performance. However, even if adding additives improves some types of performance, problems such as increased corrosion and increased sludge generation occur, making it difficult to provide sufficient performance by adding additives alone. .
最近の機械装置の運転条件が苛酷になるにつれて、寿命
が長いことが特に要求されるようになってきた。劣化現
象は基油である潤滑油分の酸化によるものが大きいため
、基油の酸化安定性が特に重要な問題となってきた。ま
たグリースの用途の拡大に伴い、トラクション係数が高
いものであることが要求されることも増大してきた。As the operating conditions of modern mechanical devices become more severe, longer lifespans are increasingly required. Since the deterioration phenomenon is largely due to the oxidation of the lubricating oil component, which is the base oil, the oxidation stability of the base oil has become a particularly important issue. Furthermore, as the uses of grease have expanded, the demand for a high traction coefficient has also increased.
そこで、従来、ナフテン系炭化水素がグリース組成物の
基油として優れた性能を有することを認め、その酸化安
定性が優れ、且つ転がり摩擦駆動装置用として優れた性
能を有するグリース組成物について種々研究されてきた
結果、トラクション係数の高いナフテン系炭化水素油を
基油として含有したグリース組成物が提案された（特開
昭５８−１２２９９５号、特開昭５８−１２２９９６号
公報参照）。Therefore, it has been recognized that naphthenic hydrocarbons have excellent performance as a base oil for grease compositions, and various studies have been conducted on grease compositions that have excellent oxidation stability and excellent performance for rolling friction drive devices. As a result, a grease composition containing a naphthenic hydrocarbon oil having a high traction coefficient as a base oil was proposed (see Japanese Patent Laid-Open No. 58-122995 and Japanese Patent Laid-Open No. 58-122996).
〈発明が解決しようとする課題〉
本発明は先に提案されたようなナフテン系炭化水素油を
基油としたグリース組成物に、増稠剤としてポリウレア
化合物を用いることにより、グリース組成物の寿命を長
くすることを目的とする。<Problems to be Solved by the Invention> The present invention uses a polyurea compound as a thickener in a grease composition based on a naphthenic hydrocarbon oil as previously proposed, thereby increasing the lifespan of the grease composition. The purpose is to make it longer.
〈課題を解決するための手段〉
すなわち、この発明に係るグリース組成物は、トラクシ
ョン係数０．０８以上、アニリン点７０″Ｃ以上、結晶
消失温度Ｏ″ＣＣ以下フテン系炭化水素を少なくとも３
０Ｈ【％以上含んだ基油に、ポリウレア化合物を増稠剤
として２〜３０ｗｔ％含有させたものである。<Means for Solving the Problems> That is, the grease composition according to the present invention has a traction coefficient of 0.08 or more, an aniline point of 70″C or more, and a crystal disappearance temperature of O″CC or less of phthenic hydrocarbons of at least 3
A base oil containing 0H[% or more] contains 2 to 30 wt% of a polyurea compound as a thickener.
まず最初に「基油」について説明する。First, I will explain "base oil".
基油としてはナフテン系炭化水素であって、トラクショ
ン係数０．０８以上、アニリン点７０°Ｃ以上、結晶消
失温度０°Ｃ以下のものを使用するが、好ましくは、下
記のような一般式（１）（１１）で表されるものが包含
される。The base oil used is a naphthenic hydrocarbon with a traction coefficient of 0.08 or more, an aniline point of 70°C or more, and a crystal disappearance temperature of 0°C or less. Preferably, it has the following general formula ( 1) Includes those expressed in (11).
Ｒ，としては、炭素数１〜３のアルキル置換アルキン基
または直鎖のアルキレン基であり、好ましくはメチレン
基、エチレン基、メチル置換メチレン基である。Ｒ３、
Ｒ４およびＲ２は同一または異なってもよい炭素数１〜
３のアルキル基であり、好ましくはメチル基またはエチ
ル基である。R is an alkyl-substituted alkyne group or a linear alkylene group having 1 to 3 carbon atoms, preferably a methylene group, an ethylene group, or a methyl-substituted methylene group. R3,
R4 and R2 have 1 to 1 carbon atoms, which may be the same or different
3, preferably a methyl group or an ethyl group.
！、ｍおよびｎは０〜３の整数であり、好ましくはＯま
たは１である。また合計の炭素数は１９〜３０、好まし
くは１９〜２４、より好ましくは１９〜２２である。! , m and n are integers of 0 to 3, preferably O or 1. The total number of carbon atoms is 19 to 30, preferably 19 to 24, more preferably 19 to 22.
上記一般式（１）で表される化合物の中でも水素化ジベ
ンジルトルエン、水素化（ベンジルフェニル）フェニル
エタンまたはこれらの１〜２個のメチルもしくはエチル
置換体が好適であり、そして一般式（ＩＩ）で表される
化合物の中では水素化ベンジルビフェニルまたはこれら
の１〜２個のメチルもしくはエチル置換体が本発明の目
的に対して好適である。Among the compounds represented by the above general formula (1), hydrogenated dibenzyltoluene, hydrogenated (benzylphenyl)phenylethane, or 1 to 2 methyl or ethyl substituted products thereof are preferred; ), hydrogenated benzylbiphenyl or one or two methyl or ethyl substituted products thereof are preferred for the purpose of the present invention.
好適な・化合物を例示すれば、水素化ジベンジルトルエ
ン、水素化ｌ、 ｔ −（ベンジルフェニル）フェニル
エタン、水素化１．１−（ベンジルトリル）フェニルエ
タン、水素化ベンジルビフェニル、水素化ｌ５ｌ−（ビ
フェニリル）フェニルエタン、水素化（エチルビフェニ
リル）フェニルメタン、水素化１．１−（エチルビフェ
ニリル）フェニルエタン、水素化メチルベンジルビフェ
ニル等カ挙げられる。Examples of suitable compounds include hydrogenated dibenzyltoluene, hydrogenated 1, t-(benzylphenyl)phenylethane, hydrogenated 1.1-(benzyltolyl)phenylethane, hydrogenated benzylbiphenyl, hydrogenated 15l- Examples include (biphenylyl)phenylethane, hydrogenated (ethylbiphenylyl)phenylmethane, hydrogenated 1,1-(ethylbiphenylyl)phenylethane, and hydrogenated methylbenzylbiphenyl.
これらの化合物は、例えば水素化ジベンジルトルエンは
、ハロゲン化ベンジルとトルエンとをフリーゾルタラフ
ッ触媒の存在下に反応させて得られるジベンジルトルエ
ンを水素化することにより得られる。また水素化ベンジ
ルビフェニルは、ハロゲン化ベンジルとビフェニルをフ
リーゾルタラフッ触媒の存在下に反応させて得られるベ
ンジルビフェニルを水素化させることにより得られる。These compounds, for example, hydrogenated dibenzyltoluene can be obtained by hydrogenating dibenzyltoluene obtained by reacting benzyl halide and toluene in the presence of a free sol fluorine catalyst. Further, hydrogenated benzyl biphenyl can be obtained by hydrogenating benzyl biphenyl obtained by reacting a halogenated benzyl and biphenyl in the presence of a free-sol Tarafluor catalyst.
このようにして得られる化合物は、異性体の混合物であ
り、また、水素化条件によって部分水素化合物との混合
物でもある。しかしながら、これらの混合物から特定の
化合物のみを分離することは困難であるばかりでなく、
多くの場合混合物としても本発明の目的に対して良好な
性能を示すので、分離する必要はない、そのような意味
では水素化率は完全に１００％にする必要はなく８０％
以上好ましくは９０％以上とすれば十分である。The compounds thus obtained are mixtures of isomers and, depending on the hydrogenation conditions, also mixtures with partially hydrogenated compounds. However, it is not only difficult to separate specific compounds from these mixtures;
In many cases, a mixture exhibits good performance for the purpose of the present invention, so separation is not necessary. In this sense, the hydrogenation rate does not need to be completely 100%, but 80%.
Preferably, it is sufficient to set it to 90% or more.
また、本発明で使用するナフテン系炭化水素は、流動点
もしくは結晶消失温度（析出した結晶が温度を上げるこ
とにより完全に溶解する温度をいう。Furthermore, the naphthenic hydrocarbon used in the present invention has a pour point or a crystal disappearance temperature (the temperature at which precipitated crystals completely dissolve by increasing the temperature).
）が０°Ｃ以下およびアニリン点が７０°Ｃ以上および
０．０８以上のトラクション係数を有するものである。) is 0°C or less, the aniline point is 70°C or more, and the traction coefficient is 0.08 or more.
このような性質のものであればグリース組成物の基油と
して使用する良好な性能を示す。A substance having such properties exhibits good performance when used as a base oil for a grease composition.
また、本発明に係る基油は、上記の如きナフテン系炭化
水素１００％だけでなく、以下のＡ、Ｂ、Ｃ（以下、ｒ
ＰＡＯＪと総称する）を７０讐ｔ％までは混合しても良
い。In addition, the base oil according to the present invention is not only 100% naphthenic hydrocarbon as described above, but also the following A, B, and C (hereinafter referred to as r
(generally referred to as PAOJ) may be mixed up to 70%.
Ａ）一般式（ＩＩＩ）
（ＲはＣｍ Ｒ２（１＋ｌ ＊ ここでｎ、・ｍＧ？、
整数）で示される水添α−オレフィンオリゴマーＢ）一
般式（ＩＶ）
で示されるエチレン−α−オレフィンコオリゴマＣ）水
添および／または水素化処理パラフィン系鉱油。A) General formula (III) (R is Cm R2 (1+l * where n, ・mG?,
B) Ethylene-α-olefin cooligomer represented by general formula (IV) C) Hydrogenated and/or hydrotreated paraffinic mineral oil.
次に「増稠剤」について説明する。Next, the "thickener" will be explained.
増稠剤としてのポリウレア化合物は、ジウレア化合物、
トリウレア化合物、テトラウレア化合物を包含するもの
であり、トリウレア化合物が最も好ましい。そして、こ
のウレア化合物の中でも、以下の一般式（Ｖ）で表され
るトリウレア化合物が好ましいものである。Polyurea compounds as thickeners include diurea compounds,
This includes triurea compounds and tetraurea compounds, with triurea compounds being the most preferred. Among these urea compounds, a triurea compound represented by the following general formula (V) is preferred.
一般式（Ｖ）
〔ただし、式中Ｒ，は炭素数１２〜２４の１価の脂肪族
炭化水素基であり、Ｒ２は２価のトリアジン誘導体であ
り、Ｒ１は炭素数６〜１５の２価の芳香族炭化水素基ま
たはその誘導体基であり、Ｒ４は炭素数２〜２４の１価
の脂肪族炭化水素法および／またはその誘導体基、およ
び／または炭素数６〜１０の１価の芳香族化水素基およ
び／またはその誘導体基である。〕
ここにおいて、炭素数１２〜２４の１価の脂肪族炭化水
素基（Ｒ１）の例としては、ドデシル基、トリデシル基
、テトラデシル基、ペンタデシル基、ヘキサデシル基、
ヘプタデシル基、オクタデシル基、ノナデシル基、エイ
コシル基、ヘンエイコシル基、トコシル基、トリデシル
基、テトラデシル基などの直鎖構造を有するものであり
、特に好ましいのはヘキサデシル基、オクタデシル基、
エイコシル基である。General formula (V) [In the formula, R is a monovalent aliphatic hydrocarbon group having 12 to 24 carbon atoms, R2 is a divalent triazine derivative, and R1 is a divalent aliphatic hydrocarbon group having 6 to 15 carbon atoms. is an aromatic hydrocarbon group or a derivative group thereof, and R4 is a monovalent aliphatic hydrocarbon group having 2 to 24 carbon atoms and/or a derivative group thereof, and/or a monovalent aromatic group having 6 to 10 carbon atoms. It is a hydrogen chloride group and/or a derivative group thereof. ] Here, examples of the monovalent aliphatic hydrocarbon group (R1) having 12 to 24 carbon atoms include dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group,
Those having a linear structure such as heptadecyl group, octadecyl group, nonadecyl group, eicosyl group, heneicosyl group, tocosyl group, tridecyl group, and tetradecyl group, and particularly preferred are hexadecyl group, octadecyl group,
It is an eicosyl group.
次に、２価のトリアジン誘導体基（Ｒ２）の例としては
、
〔ここで、Ｒは炭素数１２〜２４の１価の脂肪族炭化水
素基である。−Ｃ，Ｈ，：フェニル基〕が好ましく、特
に好ましい基は、
ＮＲ２、ｑｅへ、ＮＨ、Ｃ，、Ｈ，Ｃ０ＮＨである。Next, examples of the divalent triazine derivative group (R2) include: [Here, R is a monovalent aliphatic hydrocarbon group having 12 to 24 carbon atoms. -C,H,: phenyl group] is preferred, and particularly preferred groups are NR2, qe, NH, C, , H, CONH.
また、炭素数６〜１５の２価の芳香族炭化水素基または
誘導基（Ｒ１）の例としては、などが好ましい。Further, as examples of the divalent aromatic hydrocarbon group having 6 to 15 carbon atoms or the derivative group (R1), etc. are preferable.
また、炭素数２〜２４の１価の脂肪族炭化水素基（Ｒ４
）の例としては、
オクチル基、ノニル基、デシル基、ウンデシル基、ドデ
シル基、トリデシル基、テトラデシル基、ペンタデシル
基、ヘキサデシル基、ヘプタデシル基、オクタデシル基
、オクタデシニル基、ノナデシル基、エイコシル基、ヘ
ンエイコシル基、トコシル基、トリコシル基、テトラコ
シル基などの飽和または不飽和の脂肪族炭化水素基であ
り、特に好ましいのはヘキサデシル基、オクタデシル基
、オクタデシニル基である。また、その誘導体基の例と
しては、モノエタノールアミン、イソプロパツールアミ
ン、パルミチン酸アミド、ステアリン酸アミドなどが望
ましい。In addition, a monovalent aliphatic hydrocarbon group having 2 to 24 carbon atoms (R4
) Examples include octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, octadecynyl group, nonadecyl group, eicosyl group, heneicosyl group , saturated or unsaturated aliphatic hydrocarbon groups such as tocosyl group, tricosyl group, and tetracosyl group, and particularly preferred are hexadecyl group, octadecyl group, and octadecynyl group. Desirable examples of derivative groups thereof include monoethanolamine, isopropanolamine, palmitic acid amide, and stearic acid amide.
また、炭素数６〜１０の１価の芳香族炭化水素基（Ｒ１
）の例としては、
などが望ましく、その誘導体基（Ｒ，）の例としては、
〔ここで、Ｘはフッ素、塩素、臭素などのハロゲン族元
素である。〕
などが望ましい。In addition, a monovalent aromatic hydrocarbon group having 6 to 10 carbon atoms (R1
) is preferable, and examples of its derivative group (R,) are as follows: [Here, X is a halogen group element such as fluorine, chlorine, or bromine. ] etc. is desirable.
尚、前記一般式中Ｒ１における炭素数が１１以下のもの
では親油性が低下して好ましくなく、逆に２５以上のも
のになると溶解性が低下して反応性も鈍くなり好ましく
ない。In addition, when the number of carbon atoms in R1 in the above general formula is 11 or less, the lipophilicity decreases, which is undesirable.On the other hand, when the number of carbon atoms in R1 is 25 or more, the solubility decreases and the reactivity decreases, which is undesirable.
またＲ１における炭素数は、芳香族炭化水素基から言っ
ても６未満のものはないとしても、１５を越えるものは
、溶解性、反応性が共に低下し好ましくない。Furthermore, although there is no carbon number less than 6 in terms of aromatic hydrocarbon groups, if it exceeds 15, both solubility and reactivity decrease, which is not preferable.
さらに、Ｒ１における炭素数が２未満、すなわち１のも
のは反応に際し気体のものを用いることになり反応を制
御し難いので好ましくな（、逆に２５以上のものになる
と溶解性が低下し反応性も鈍くなるので好ましくない。Furthermore, if the number of carbon atoms in R1 is less than 2, that is, 1, a gaseous substance will be used during the reaction, making it difficult to control the reaction, so it is not preferable (on the contrary, if it is 25 or more, the solubility will decrease and the reactivity will decrease. It is also undesirable because it becomes dull.
なお、芳香族基の場合は炭素数６未満はあり得ないが、
１０を越えるも゛のになると溶解性、反応性共に低下し
て好ましくない。In addition, in the case of aromatic groups, the number of carbon atoms cannot be less than 6,
If it exceeds 10, both solubility and reactivity decrease, which is undesirable.
次に、このトリウレア化合物は、Ｎ−脂肪族炭化水素基
置換ウレイド−トリアジン誘導体および１級アミンとジ
イソシアナートとの反応生成物であり、−ａに次の化学
反応式（Ｖｌ）で表される。Next, this triurea compound is a reaction product of an N-aliphatic hydrocarbon group-substituted ureido-triazine derivative, a primary amine, and a diisocyanate, and -a is represented by the following chemical reaction formula (Vl). Ru.
Ｒ，−ＮＨＣＮＨ−Ｒ２−ＮＨ，＋ ０ＣｔＪ−Ｒ５−
ＮＣＯ＋Ｈ，Ｎ−Ｒ４ここで、Ｎ−脂肪族炭化水素基置
換ウレイド−トリアジン誘導体は、アミン基を２個以上
もつトリアジン誘導体を炭素数１２〜２４のアルキルイ
ソシアナートと反応させて得られ、次の一般式％式％
この反応はアルキルイソシアナートとトリアジン誘導体
とを当モル比で行えばよく、補助溶剤としてジメチルホ
ルムアミド、ジオキサン、ジメチルスルホキシドなどの
極性有機溶媒を用いるのが適当である。反応温度は通常
８０〜２００ ’Ｃ１好ましくは１００〜１６０°Ｃの
範囲で、反応時間は１時間から５時間の範囲で撹拌下に
行われる。反応生成物は溶媒中に析出してくるので、反
応終了後室温に冷却し、濾別、乾燥することにより、Ｎ
−脂肪族炭化水素基置換ウレイド−トリアジンを得るこ
とができる。R, -NHCNH-R2-NH,+0CtJ-R5-
NCO+H,N-R4 Here, the N-aliphatic hydrocarbon group-substituted ureido-triazine derivative is obtained by reacting a triazine derivative having two or more amine groups with an alkyl isocyanate having 12 to 24 carbon atoms, and is obtained by the following reaction. General Formula % Formula % This reaction may be carried out using the alkyl isocyanate and the triazine derivative in an equimolar ratio, and it is appropriate to use a polar organic solvent such as dimethylformamide, dioxane, or dimethyl sulfoxide as an auxiliary solvent. The reaction temperature is generally 80 to 200°C, preferably 100 to 160°C, and the reaction time is 1 to 5 hours, with stirring. The reaction product precipitates in the solvent, so after the reaction is finished, it is cooled to room temperature, filtered, and dried to remove N.
- An aliphatic hydrocarbon group-substituted ureido-triazine can be obtained.
また、上記の如きポリウレア化合物の含有量は２〜３０
４％が適当である。ポリウレア化合物が２ｗｔ％以下で
あると増稠効果が少なく、３０ｗｔ％を越えるとグリー
ス組成物が固くなり過ぎ十分な潤滑効果を発揮できず、
また経済的にも不利である。In addition, the content of the polyurea compound as described above is 2 to 30
4% is appropriate. If the polyurea compound is less than 2 wt%, the thickening effect will be small, and if it exceeds 30 wt%, the grease composition will become too hard and cannot exhibit sufficient lubricating effect.
It is also economically disadvantageous.
〈実 施 例〉
本発明に係るグリース組成物を、実機ラボシミュレータ
ーと実設備の両方において試験した結果を以下に示す。<Example> The results of testing the grease composition according to the present invention in both an actual laboratory simulator and an actual facility are shown below.
一ボシミュレー
本発明に係るグリース・組成物を焼結鉱の過粉砕防止対
策設備に設置されている加振機の実機ラボシミュレータ
ーのニーラスモーター（安用電気社製、ＫＥＤ−３２）
軸受（当軸受は自身の大きな加振力により油膜形成の困
難さから極めて寿命が短い）に充填し、一定条件下で運
転した後、その使用済みグリース組成物を採取して、そ
のグリース組成物中に存在する摩耗粉濃度を測定するフ
ェログラフィー分析を行った。Ichibo Simulation The grease/composition according to the present invention is used in the actual laboratory simulator of the vibrator installed in the equipment for preventing excessive crushing of sintered ore, such as Nierasu Motor (KED-32, manufactured by Yasuo Denki Co., Ltd.)
After filling a bearing (which has an extremely short lifespan due to the difficulty of forming an oil film due to its own large excitation force) and operating it under certain conditions, the used grease composition is collected and the grease composition is A ferrographic analysis was conducted to measure the concentration of wear particles present in the material.
すなわち、このフェログラフィー分析とは、試料（油、
グリース等）を傾斜したフェログラムスライドの上へ流
して下に排出する。この時、摩耗粉粒子が装置下部に設
置されている磁石によって摩耗粒子がスライド上に大き
さの順に配列される。In other words, this ferrographic analysis refers to the analysis of samples (oil,
(grease, etc.) onto the tilted ferrogram slide and drain it downward. At this time, the wear particles are arranged on the slide in order of size by a magnet installed at the bottom of the device.
これらを２色顕微鏡によって観察し、そのグリース組成
物中に存在する摩耗粉の形態及び濃度から機械の潤滑状
態を判断する分析である。This is an analysis in which the lubrication state of the machine is determined by observing these particles using a two-color microscope and based on the form and concentration of wear particles present in the grease composition.
そして、運転試験条件は以下の通りとした。The driving test conditions were as follows.
軸受型 ６３０５
グリース充填量 １．５ｇ
ローター回転数 ８０Ｏｒｐｍ最大加振力
１００ Ｋｇｆテスト時間
「
試験結果を、
以下の表１に示す。Bearing type 6305 Grease filling amount 1.5g Rotor rotation speed 80Orpm Maximum excitation force
100 Kgf test time The test results are shown in Table 1 below.
表
尚、前記表１中の、
「ナフテン系炭化水素」は、水素化ジベンジルトルエン
（異性体混合物）であり、トラクション係数０．０９、
アニリン点８１．１°Ｃ１結晶焼結温度−２０℃である
。In Table 1 above, "naphthenic hydrocarbon" is hydrogenated dibenzyltoluene (isomer mixture), with a traction coefficient of 0.09,
The aniline point is 81.1°C and the crystal sintering temperature is -20°C.
ｒＰＡＯ，は、エチレンα−オレフィンコオリゴマー
「ジウレア化合物」は、ジフェニルメタン−４゜４′−
ジイソシアナートとオクタデシルアミン及びＰ−アニシ
ジンの反応化合物、
「テトラウレア化合物」は、ジフェニルメタン−４，４
゛−ジイソシアナートとオクタデシルアミン、シクロヘ
キシルアミン及びヘキサメチレンジアミンの反応化合物
、
「トリウレア化合物」は、ジフェニルメタン−４゜４′
−ジイソシアナートとオクタデシルアミン。rPAO, ethylene α-olefin cooligomer “diurea compound”, diphenylmethane-4゜4′-
The reaction compound of diisocyanate, octadecylamine and P-anisidine, "tetraurea compound" is diphenylmethane-4,4
゛-A reaction compound of diisocyanate, octadecylamine, cyclohexylamine and hexamethylenediamine, ``triurea compound'' is diphenylmethane-4゜4'
-Diisocyanates and octadecylamine.
Ｐ−アニシジン及び２−オクタデシルウレイド−４，６
−ジアミツー１．３．５−）リアジンの反応化合物、の
ことである。P-anisidine and 2-octadecylureido-4,6
-Diamitsu 1.3.5-) It refers to a reaction compound of riazine.
そして、各試験方法としては、混和稠度試験は摩耗粉濃
度測定は、
ＪＩＳＫ２２２０５．３による。As for each test method, the mixing consistency test and the wear powder concentration measurement are based on JISK22205.3.
フェログラフィー分析による。By ferrographic analysis.
また、フェログラフィー分析による摩耗粉濃度は、表１
からも判るように、基油に鉱油を使用したもの（比較例
Ｎα１）より、ナフテン系炭化水素を使用したもの（比
較例２〜４）の方が摩耗粉濃度は橋めて小さく、更に増
ちょう剤としてトリウレア化合物を使用したもの（実施
例１〜５）は、もっと摩耗粉濃度が小さいことが判る。In addition, the wear powder concentration determined by ferrography analysis is shown in Table 1.
As can be seen from the figure, the wear powder concentration was much lower in the case using naphthenic hydrocarbons (Comparative Examples 2 to 4) than in the case using mineral oil as the base oil (Comparative Example Nα1), and it was further increased. It can be seen that those using a triurea compound as a thickening agent (Examples 1 to 5) had a lower concentration of wear particles.
尚、比較例５は、ナフテン系炭化水素及びトリウレア化
合物を使用しているが、基油中におけるナフテン系炭化
水素の比率が３０ｗｔ％以下なので、摩耗粉濃度が大き
くなっている。In Comparative Example 5, naphthenic hydrocarbons and triurea compounds are used, but since the ratio of naphthenic hydrocarbons in the base oil is 30 wt% or less, the concentration of wear particles is high.
におしる
本発明に係るグリース組成物を突設（＋ｉｉｉの焼結鉱
過粉砕防止対策設備に設置されている加振機のニーラス
モーター軸受に充填し、一定条件下で運転し、当該グリ
ース組成物の実設備における軸受寿命延長効果の一１認
を行った。The grease composition according to the present invention is filled into the bearing of the Neeras motor of the vibrator installed in the equipment for preventing over-grinding of sintered ore (+iii), and operated under certain conditions. The effectiveness of the grease composition in extending bearing life in actual equipment was confirmed.
実機試験条件は以下の通りである。The actual machine test conditions are as follows.
試験設備 焼結鉱過粉砕防止対策設備試験軸受 当
該設備に設置されている加振機のニーラスモーターの軸
受
軸受型 円筒ころがり軸受（ＮＪ−４２４型）軸受
個数 １２個
モーター容ｊ土 ７．５ Ｗ
加振力 １３０００Ｋｇ
試験期間 ２年間
稼（ＩＪ ２４時間連続
給脂条件 ４０ｇ／３週間
評価法 フェログラフィー分析
（３週間毎にチエツク）
実機試験結果の軸受寿命延長効果を第１図に示す。尚、
図中、
モーター取替件数：
フェログラフィー分析で異状
が認められた時、事前にモー
ターを取替えた件数
運転中に突発的に故障休止し
た件数
前記表１の比較例１
突発休止件数
試
料
試 料 Ｂ ： 前記表１の比較例５試 料 Ｃ：
前記表１の実施例２
この実設備における実機試験においても、第１図から判
るように、基油に鉱油を使用したものより、ナフテン系
炭化水素を使用したものの方が軸受寿命は極めて長く、
更に増ちょう剤としてトリウレア化合物を使用したもの
は、更に軸受寿命が長いことが判る。Test equipment Test bearing for equipment to prevent sintered ore over-grinding Bearing of the Nieras motor of the vibrator installed in the equipment Bearing type Cylindrical rolling bearing (NJ-424 type) Number of bearings 12 Motor capacity 7.5 W Excitation force 13000Kg Test period 2 years operation (IJ 24-hour continuous lubrication condition 40g/3 weeks Evaluation method Ferrography analysis (checked every 3 weeks) Figure 1 shows the bearing life extension effect based on the actual machine test results. ,
In the figure, Number of motor replacements: Number of motors replaced in advance when an abnormality was found in ferrography analysis Number of cases where the motor suddenly stopped due to a failure during operation Comparative example 1 of Table 1 above Number of cases where the motor suddenly stopped Sample B : Sample C of Comparative Example 5 in Table 1 above:
Example 2 in Table 1 Above In this actual test using actual equipment, as can be seen from Figure 1, bearings using naphthenic hydrocarbons as the base oil had a much longer life span than those using mineral oil as the base oil.
Furthermore, bearings using a triurea compound as a thickener have a longer bearing life.
【図面の簡単な説明】
第１図は実機試験結果の軸受寿命延長効果を示すグラフ
である。[Brief Description of the Drawings] Fig. 1 is a graph showing the bearing life extension effect based on actual machine test results.
Claims (1)
上、結晶消失温度０℃以下のナフテン系炭化水素を少な
くとも３０ｗｔ％以上含んだ基油に、ポリウレア化合物
を増稠剤として２〜３０ｗｔ％含有させたことを特徴と
するグリース組成物。A base oil containing at least 30 wt% or more of naphthenic hydrocarbons with a traction coefficient of 0.08 or higher, an aniline point of 70°C or higher, and a crystal disappearance temperature of 0°C or lower contains 2 to 30 wt% of a polyurea compound as a thickener. A grease composition characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17706688A JPH0228295A (en) | 1988-07-18 | 1988-07-18 | Grease composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17706688A JPH0228295A (en) | 1988-07-18 | 1988-07-18 | Grease composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228295A true JPH0228295A (en) | 1990-01-30 |
Family
ID=16024523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17706688A Pending JPH0228295A (en) | 1988-07-18 | 1988-07-18 | Grease composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228295A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05149341A (en) * | 1991-11-29 | 1993-06-15 | Ntn Corp | Porous slide bearing |
| JP2016159764A (en) * | 2015-03-02 | 2016-09-05 | 日本精工株式会社 | Steering lock device |
| WO2018043744A1 (en) * | 2016-09-05 | 2018-03-08 | 出光興産株式会社 | Grease |
| US10676689B2 (en) | 2017-12-29 | 2020-06-09 | Exxonmobil Research And Engineering Company | Grease compositions for low temperature operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49132103A (en) * | 1973-04-18 | 1974-12-18 | ||
| JPS53115704A (en) * | 1977-03-14 | 1978-10-09 | Chevron Res | Extremeepressure grease containing polyurea as its base |
| JPS58122996A (en) * | 1982-01-14 | 1983-07-21 | Nippon Steel Chem Co Ltd | Grease composition |
| JPS5951998A (en) * | 1982-09-17 | 1984-03-26 | Chuo Yuka Kk | Triurea grease composition |
| JPS61162595A (en) * | 1985-01-10 | 1986-07-23 | Nippon Oil Co Ltd | Grease composition |
| JPS6315896A (en) * | 1986-07-08 | 1988-01-22 | Chuo Yuka Kk | Triurea grease composition |
-
1988
- 1988-07-18 JP JP17706688A patent/JPH0228295A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49132103A (en) * | 1973-04-18 | 1974-12-18 | ||
| JPS53115704A (en) * | 1977-03-14 | 1978-10-09 | Chevron Res | Extremeepressure grease containing polyurea as its base |
| JPS58122996A (en) * | 1982-01-14 | 1983-07-21 | Nippon Steel Chem Co Ltd | Grease composition |
| JPS5951998A (en) * | 1982-09-17 | 1984-03-26 | Chuo Yuka Kk | Triurea grease composition |
| JPS61162595A (en) * | 1985-01-10 | 1986-07-23 | Nippon Oil Co Ltd | Grease composition |
| JPS6315896A (en) * | 1986-07-08 | 1988-01-22 | Chuo Yuka Kk | Triurea grease composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05149341A (en) * | 1991-11-29 | 1993-06-15 | Ntn Corp | Porous slide bearing |
| JP2016159764A (en) * | 2015-03-02 | 2016-09-05 | 日本精工株式会社 | Steering lock device |
| WO2018043744A1 (en) * | 2016-09-05 | 2018-03-08 | 出光興産株式会社 | Grease |
| US10676689B2 (en) | 2017-12-29 | 2020-06-09 | Exxonmobil Research And Engineering Company | Grease compositions for low temperature operation |
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