EP3551736A1 - Lubricant composition for industrial gearing coming into contact with food - Google Patents

Lubricant composition for industrial gearing coming into contact with food

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Publication number
EP3551736A1
EP3551736A1 EP17832483.6A EP17832483A EP3551736A1 EP 3551736 A1 EP3551736 A1 EP 3551736A1 EP 17832483 A EP17832483 A EP 17832483A EP 3551736 A1 EP3551736 A1 EP 3551736A1
Authority
EP
European Patent Office
Prior art keywords
lubricating composition
composition according
food contact
food
lubricant composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP17832483.6A
Other languages
German (de)
French (fr)
Other versions
EP3551736B1 (en
Inventor
Marie-Noëlle VALLA
Julien BENITO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TotalEnergies Onetech SAS
Original Assignee
Total Marketing Services SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Total Marketing Services SA filed Critical Total Marketing Services SA
Publication of EP3551736A1 publication Critical patent/EP3551736A1/en
Application granted granted Critical
Publication of EP3551736B1 publication Critical patent/EP3551736B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/22—Alkylation reaction products with aromatic type compounds, e.g. Friedel-crafts
    • C10M2205/223—Alkylation reaction products with aromatic type compounds, e.g. Friedel-crafts used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/102—Polyesters
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/62—Food grade properties
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention relates to a lubricant composition comprising: at least one base oil for coming into contact with food, selected from the groups II, III or V according to the categories defined in the API classification or the equivalents thereof according to the ATIEL classification; at least one hydrogenated polyisobutylene; and at least one ester polymer.

Description

Composition lubrifiante pour engrenage industriel à contact alimentaire  Lubricant composition for industrial gearing for food contact
La présente demande concerne une composition lubrifiante, notamment pour engrenage industriel. Ladite composition présente avantageusement des propriétés lui permettant d'être mise en œuvre dans des applications à contact alimentaire, notamment contact alimentaire fortuit, et à de très basses températures. The present application relates to a lubricant composition, in particular for industrial gearing. Said composition advantageously has properties that enable it to be used in food contact applications, particularly incidental food contact, and at very low temperatures.
Les compositions lubrifiantes pour engrenage industriel, mises en œuvre dans l'industrie agro-alimentaire, doivent répondre aux critères de contact alimentaire fortuit définis dans le chapitre 21 , §178.3570 (« Lubricants with incidental food contact ») du « Code of Fédéral Régulation » de la FDA (Food and Drug Administration). Les installations dans l'industrie agro-alimentaire peuvent également être utilisées dans des environnements à basses voire très basses températures, par exemple à des températures inférieures à - 22°C. Il est donc nécessaire de pouvoir fournir une composition lubrifiante, adaptée au contact alimentaire fortuit, et qui soit polyvalente en termes de température d'utilisation, en particulier qui puisse être utilisée à de très basses températures, par exemple à des températures inférieures à -22°C. The industrial gear lubricating compositions used in the food industry must meet the criteria for incidental food contact defined in Chapter 21, §178.3570 ("Lubricants with incidental food contact") of the "Code of Federal Regulation". from the FDA (Food and Drug Administration). Installations in the food industry can also be used in environments with low or very low temperatures, for example at temperatures below - 22 ° C. It is therefore necessary to be able to provide a lubricant composition suitable for incidental food contact and which is versatile in terms of the temperature of use, in particular which can be used at very low temperatures, for example at temperatures below -22.degree. ° C.
Les poly-alpha-oléfines (PAO) répondent aux critères de contact alimentaire fortuit et possèdent un point d'écoulement suffisamment bas pour pouvoir être mise en œuvre à de très basses températures. Cependant, ces composés sont très coûteux.  Poly-alpha-olefins (PAOs) meet the criteria for incidental food contact and have a pour point low enough to be able to be used at very low temperatures. However, these compounds are very expensive.
Les huiles blanches répondent également aux critères de contact alimentaire fortuit. White oils also meet the criteria for incidental food contact.
Cependant leurs propriétés à froid ne sont pas satisfaisantes. L'ajout d'un abaisseur de point d'écoulement (PPD) est donc nécessaire. Or, à ce jour, un seul PPD commercial répond aux critères de contact alimentaire fortuit. However, their cold properties are not satisfactory. The addition of a pour point depressant (PPD) is therefore necessary. However, to date, only one commercial PPD meets the criteria for incidental food contact.
Il existe donc un intérêt à pouvoir proposer des compositions lubrifiantes répondant aux critères de contact alimentaire et présentant un point d'écoulement suffisamment bas pour pouvoir être utilisées à basses voire très basses températures. Un objectif de la présente invention est de fournir des compositions lubrifiantes répondant aux critères de contact alimentaire et présentant un point d'écoulement suffisamment bas pour pouvoir être utilisées à basses voire très basses températures.  There is therefore an interest in being able to provide lubricating compositions meeting the food contact criteria and having a pour point sufficiently low to be used at low or very low temperatures. An object of the present invention is to provide lubricating compositions meeting the food contact criteria and having a pour point sufficiently low to be used at low or very low temperatures.
Un autre objectif de la présente invention est de fournir de telles compositions qui présentent en outre une viscosité élevée, en particulier à 40°C. It is another object of the present invention to provide such compositions which further exhibit high viscosity, especially at 40 ° C.
Un autre objectif encore de la présente invention est de fournir de telles compositions à coût réduit. D'autres objectifs encore apparaîtront à la lecture de la description de l'invention qui suit. Yet another object of the present invention is to provide such low cost compositions. Still other objects will appear on reading the description of the invention which follows.
Ces objectifs sont atteints par la présente invention qui concerne une composition lubrifiante comprenant : These objectives are achieved by the present invention which relates to a lubricant composition comprising:
- au moins une huile de base pour contact alimentaire, choisie dans les groupes II, III ou V selon les classes définies dans la classification API ou leurs équivalents selon la classification ATIEL ; at least one base oil for food contact, chosen from groups II, III or V according to the classes defined in the API classification or their equivalents according to the ATIEL classification;
- au moins un polyisobutylène hydrogéné ;  at least one hydrogenated polyisobutylene;
- au moins un polymère ester.  at least one ester polymer.
De préférence, la présente invention concerne une composition lubrifiante comprenant :Preferably, the present invention relates to a lubricant composition comprising:
- au moins une huile de base pour contact alimentaire, choisie dans les groupes II, III ou V selon les classes définies dans la classification API ou leurs équivalents selon la classification ATIEL ; at least one base oil for food contact, chosen from groups II, III or V according to the classes defined in the API classification or their equivalents according to the ATIEL classification;
- au moins un polyisobutylène hydrogéné ; at least one hydrogenated polyisobutylene;
- au moins un polymère ester choisi parmi les copolymères ester comportant un squelette hydrocarboné, des groupes pendants hydrocarbonés et des groupes pendants esters.  at least one ester polymer chosen from ester copolymers comprising a hydrocarbon backbone, pendant hydrocarbon groups and pendant ester groups.
L'huile de base selon l'invention n'est pas une PAO. The base oil according to the invention is not a PAO.
Les huiles de base sont définies selon la classification API (ou leurs équivalents selon la classification ATIEL) (tableau A). Base oils are defined according to the API classification (or their equivalents according to the ATIEL classification) (Table A).
Tableau A L'huile de base selon l'invention est choisie parmi les huiles de base pour contact alimentaire et notamment pour contact alimentaire fortuit. Les critères pour répondre aux exigences de contact alimentaire, notamment contact alimentaire fortuit, sont définis dans le chapitre 21 , §178.3570 (« Lubricants with incidental food contact ») du « Code of Fédéral Régulation » de la FDA (Food and Drug Administration). Les lubrifiants répondant aux critères de contact alimentaire fortuit sont certifiés comme étant NSF H1 (NSF = National Sanitation Foudation). De préférence, dans la composition selon l'invention l'huile de base est choisie dans le groupe des huiles de base pour contact alimentaire choisies dans le groupe II selon les classes définies dans la classification API ou leurs équivalents selon la classification ATIEL, de préférence parmi les huiles blanches. Les huiles blanches sont des huiles bien connues de l'homme du métier. Elles correspondent à des huiles minérales hautement raffinées et donc de grande pureté. Elles présentent des propriétés de stabilité, notamment de stabilité thermique, elles sont inertes chimiquement, elles ne sont pas toxiques, elles sont sans odeur et sans couleur. Les huiles blanches sont notamment définies dans le « Code of Fédéral Régulation » de la FDA (2016) aux sections 172.878 et 178.3620. Tout type d'huile blanche peut être mise en œuvre dans l'invention. Par exemple, les huiles blanches sont choisies parmi les huiles de grade ISO VG15 et ISO VG68. Par exemple, les huiles blanches sont la Finavestan A80B® ou la Finavestan A360B® commercialisées par la société Total. De préférence, le polyisobutylène hydrogéné selon l'invention est choisi parmi les polyisobutylènes hydrogénés de masse molaire en nombre (Mn) comprise entre 400 et 2000, de préférence entre 400 et 1500, par exemple entre 400 et 1300. Par exemple les polyisobutylènes hydrogénés de l'invention peuvent être l'Indopol H300®, l'Indopol H25® ou encore l'Indopol H7® commercialisés par la société Ineos Oligomers. L'hydrogénation du polyisobutylène peut être totale ou partielle. Table A The base oil according to the invention is chosen from base oils for food contact and in particular for incidental food contact. Criteria for meeting food contact requirements, including incidental food contact, are defined in Chapter 21, §178.3570 ("Lubricants with Incidental Food Contact") of the FDA's "Code of Federal Regulation". Lubricants meeting the criteria for incidental food contact are certified as NSF H1 (NSF = National Sanitation Fusion). Preferably, in the composition according to the invention, the base oil is chosen from the group of base oils for food contact chosen from group II according to the classes defined in the API classification or their equivalents according to the ATIEL classification, preferably among the white oils. White oils are oils well known to those skilled in the art. They correspond to highly refined mineral oils and therefore of high purity. They have stability properties, including thermal stability, they are chemically inert, they are non-toxic, they are odorless and colorless. White oils are particularly defined in the FDA's "Code of Federal Regulation" (2016) in sections 172.878 and 178.3620. Any type of white oil can be used in the invention. For example, the white oils are chosen from oils of ISO VG15 and ISO VG68 grade. For example, the white oils are Finavestan A80B® or Finavestan A360B® marketed by Total. Preferably, the hydrogenated polyisobutylene according to the invention is chosen from hydrogenated polyisobutylenes having a number-average molar mass (Mn) of between 400 and 2000, preferably between 400 and 1500, for example between 400 and 1300. For example, the hydrogenated polyisobutylenes of the invention may be Indopol H300®, Indopol H25® or Indopol H7® marketed by the company Ineos Oligomers. The hydrogenation of the polyisobutylene can be total or partial.
De préférence, le polymère ester selon l'invention est choisi parmi les copolymères ester, de préférence parmi les polymères comportant un squelette hydrocarboné, des groupes pendants (ou ramification ou branchement) hydrocarbonés et des groupes pendants (ou ramification ou branchement) esters. Les demandes de brevet EP2014750 et US2543964, incorporés ici par référence, décrivent notamment des polymères esters. De préférence, le polymère ester est choisi parmi les copolymères d'alpha-oléfine et d'acide polycarboxylique estérifié avec des alcools, de préférence d'acide dicarboxylique, notamment d'acide dicarboxylique α-β éthyléniquement insaturé. L'alcool est notamment choisi parmi les alcools, linéaires ou ramifiés, comprenant de 1 à 10 atomes de carbone. De préférence, le polymère ester est choisi parmi les polymères comportant un squelette hydrocarboné, des groupes pendants (ou ramification ou branchement) hydrocarbonés, par exemple comprenant de 1 à 20 atomes de carbone, et des groupes pendants (ou ramification ou branchement) esters présentant : Preferably, the ester polymer according to the invention is chosen from ester copolymers, preferably from polymers comprising a hydrocarbon backbone, pendant groups (or branching or branching) hydrocarbon and pendant groups (or branching or branching) esters. The patent applications EP2014750 and US2543964, incorporated herein by reference, notably describe ester polymers. Preferably, the ester polymer is chosen from copolymers of alpha-olefin and polycarboxylic acid esterified with alcohols, preferably dicarboxylic acid, especially α-β-ethylenically unsaturated dicarboxylic acid. The alcohol is especially chosen from linear or branched alcohols comprising from 1 to 10 carbon atoms. Preferably, the ester polymer is chosen from polymers comprising a hydrocarbon backbone, pendant groups (or branching or branching) hydrocarbon, for example comprising from 1 to 20 carbon atoms, and pendant groups (or branching or branching) esters having :
une masse moléculaire moyenne (Mw) comprise entre 1000 et 2500, de préférence entre 1500 et 2500, de préférence environ 2000, et/ou  an average molecular weight (Mw) of between 1000 and 2500, preferably between 1500 and 2500, preferably about 2000, and / or
une viscosité à 100°C (selon la norme ASTM D-445) comprise entre 25 et 45 mm2/s, de préférence entre 35 et 45 mm2/s, par exemple environ 40 mm2/s ; et/ou un point d'écoulement (ou pour point) (selon la norme ASTM D-97) inférieure ou égale à 0°C, de préférence compris entre -10°C et 0°C, par exemple entre -8 et - 2°C. a viscosity at 100 ° C (according to ASTM D-445) of between 25 and 45 mm 2 / s, preferably between 35 and 45 mm 2 / s, for example about 40 mm 2 / s; and / or a pour point (or point) (according to ASTM D-97) less than or equal to 0 ° C, preferably between -10 ° C and 0 ° C, for example between -8 and - 2 ° C.
De préférence, le polymère ester est choisi parmi les copolymères d'alpha-oléfine et d'acide polycarboxylique estérifié avec des alcools, de préférence d'acide dicarboxylique, notamment d'acide dicarboxylique α-β éthyléniquement insaturé, présentant:  Preferably, the ester polymer is chosen from copolymers of alpha-olefin and polycarboxylic acid esterified with alcohols, preferably dicarboxylic acid, especially α-β-ethylenically unsaturated dicarboxylic acid, having:
une masse moléculaire moyenne (Mw) comprise entre 1000 et 2500, de préférence entre 1500 et 2500, de préférence environ 2000, et/ou  an average molecular weight (Mw) of between 1000 and 2500, preferably between 1500 and 2500, preferably about 2000, and / or
une viscosité à 100°C (selon la norme ASTM D-445) comprise entre 25 et 45 mm2/s, de préférence entre 35 et 45 mm2/s, par exemple environ 40 mm2/s ; et/ou un point d'écoulement (ou pour point) (selon la norme ASTM D-97) inférieure ou égale à 0°C, de préférence compris entre -10°C et 0°C, par exemple entre -8 et - 2°C. a viscosity at 100 ° C (according to ASTM D-445) of between 25 and 45 mm 2 / s, preferably between 35 and 45 mm 2 / s, for example about 40 mm 2 / s; and / or a pour point (or point) (according to ASTM D-97) less than or equal to 0 ° C, preferably between -10 ° C and 0 ° C, for example between -8 and - 2 ° C.
Par exemple le polymère ester est le Ketjenlube 240® commercialisé par la société Italmatch.  For example, the ester polymer is Ketjenlube 240® marketed by Italmatch.
La composition lubrifiante selon l'invention comprend de préférence au moins 38%, de préférence au moins 40%, en poids de polyisobutylène hydrogéné, de préférence au moins 45% en poids, de préférence entre 45 et 60%, plus préférentiellement entre 45 et 55%, par rapport au poids total de la composition lubrifiante. The lubricating composition according to the invention preferably comprises at least 38%, preferably at least 40%, by weight of hydrogenated polyisobutylene, preferably at least 45% by weight, preferably between 45 and 60%, more preferably between 45 and 60% by weight. 55%, based on the total weight of the lubricant composition.
La composition lubrifiante selon l'invention comprend de préférence au moins 1 % en poids de polymère ester, de préférence entre 1 et 20%, de préférence entre 2 et 10%, de préférence au moins 5%, de préférence entre 5 et 20%, de préférence entre 5 et 10%, par rapport au poids total de composition lubrifiante. The lubricating composition according to the invention preferably comprises at least 1% by weight of ester polymer, preferably between 1 and 20%, preferably between 2 and 10%, of preferably at least 5%, preferably between 5 and 20%, preferably between 5 and 10%, relative to the total weight of lubricating composition.
La composition lubrifiante selon l'invention comprend de préférence au moins 20% en poids d'huile de base pour contact alimentaire, de préférence de 20 à 50% en poids, par rapport au poids total de la composition lubrifiante. The lubricating composition according to the invention preferably comprises at least 20% by weight of base oil for food contact, preferably from 20 to 50% by weight, relative to the total weight of the lubricating composition.
La composition lubrifiante selon l'invention peut comprendre des additifs. Les additifs peuvent être tout additif connu dans le domaine de la lubrification, notamment dans le domaine de la lubrification des engrenages industriels. De préférence, les additifs sont choisis parmi les additifs répondant aux critères de contact alimentaire, notamment contact alimentaire fortuit. Les additifs préférés pour la composition lubrifiante utilisée selon l'invention sont choisis parmi les additifs anti-usure, les additifs extrême-pression, les améliorants de l'indice de viscosité, les additifs anti-corrosion, les agents anti-mousse, les antioxydants, et les modificateurs de frottements inorganiques et leurs mélanges. Pour ce qui concerne les additifs anticorrosion ils peuvent être choisis par l'homme du métier en fonction du métal à traiter. Par exemple, les agents anti-corrosion de l'invention peuvent être choisis parmi les agents anti-corrosion de l'aluminium, de l'acier, de l'acier galvanisé, des métaux jaunes (par exemple cuivre, laiton, de préférence cuivre), etc, seuls ou en mélange. The lubricating composition according to the invention may comprise additives. The additives may be any additive known in the field of lubrication, particularly in the field of lubrication of industrial gears. Preferably, the additives are selected from the additives meeting the criteria of food contact, including fortuitous food contact. The preferred additives for the lubricant composition used according to the invention are chosen from anti-wear additives, extreme pressure additives, viscosity index improvers, anti-corrosion additives, anti-foam agents and antioxidants. , and inorganic friction modifiers and mixtures thereof. Regarding anticorrosive additives they can be chosen by the skilled person depending on the metal to be treated. For example, the anti-corrosion agents of the invention can be chosen from the anti-corrosion agents of aluminum, steel, galvanized steel, yellow metals (for example copper, brass, preferably copper ), etc., alone or in mixture.
De manière particulièrement avantageuse, la composition lubrifiante selon l'invention répond aux critères de contact alimentaire, notamment contact alimentaire fortuit, tels que définis ci-dessus. Cela permet notamment une utilisation de la composition lubrifiante selon l'invention dans la lubrification de systèmes mécaniques dans des installations agro-alimentaires, notamment dans la lubrification d'engrenage industriel dans le domaine agro-alimentaire. In a particularly advantageous manner, the lubricating composition according to the invention meets the criteria of food contact, including fortuitous food contact, as defined above. This allows in particular a use of the lubricant composition according to the invention in the lubrication of mechanical systems in agro-food installations, in particular in the lubrication of industrial gear in the agro-food field.
De manière particulièrement avantageuse, la composition lubrifiante selon l'invention présente un point d'écoulement selon la norme ISO 3016, inférieur à -24°C. Cela permet notamment une utilisation de la composition lubrifiante selon l'invention dans des conditions de très basses températures, par exemples inférieure à -22°C. In a particularly advantageous manner, the lubricant composition according to the invention has a pour point according to the ISO 3016 standard, lower than -24 ° C. This allows in particular a use of the lubricant composition according to the invention under conditions of very low temperatures, for example below -22 ° C.
De manière particulièrement avantageuse, la composition lubrifiante selon l'invention répond aux critères de contact alimentaire, notamment contact alimentaire fortuit, tel que défini ci-dessus, et un point d'écoulement inférieur à -24°C. Cela permet notamment une utilisation de la composition lubrifiante selon l'invention dans la lubrification de systèmes mécaniques dans les installations agro-alimentaire à basse température, voire très basse température, par exemple dans des chambres froides, congélateurs, notamment dans la lubrification d'engrenage industriel dans les installations agro-alimentaire à basse température, voire très basse température, par exemple dans des chambres froides, congélateurs. In a particularly advantageous manner, the lubricating composition according to the invention meets the food contact criteria, in particular fortuitous food contact, as defined above, and a pour point of less than -24 ° C. This allows in particular a use of the lubricant composition according to the invention in the lubrication of systems in low-temperature or even very low-temperature food-processing plants, for example in cold rooms, freezers, in particular in the lubrication of industrial gearing in low-temperature or even very low-temperature food-processing installations, for example in cold rooms, freezers.
La composition selon l'invention présente une viscosité cinématique à 40°C, mesurée selon la norme ISO 3104, comprise entre 500 et 2000 mm2/s. La combinaison de ces fortes viscosités avec un point d'écoulement très bas permet avantageusement une utilisation à basses températures de la composition lubrifiante selon l'invention. The composition according to the invention has a kinematic viscosity at 40 ° C., measured according to the ISO 3104 standard, of between 500 and 2000 mm 2 / s. The combination of these high viscosities with a very low pour point advantageously makes it possible to use the lubricant composition according to the invention at low temperatures.
Ainsi, la composition lubrifiante selon l'invention présente une viscosité cinématique à 40°C élevée et un point d'écoulement très faible ce qui permet sa polyvalence et son utilisation dans des conditions de températures très distinctes. Thus, the lubricant composition according to the invention has a high kinematic viscosity at 40 ° C and a very low pour point which allows its versatility and its use in very different temperature conditions.
La présente demande concerne également l'utilisation d'une composition lubrifiante selon l'invention pour la lubrification d'engrenage, de préférence d'engrenage industriel, notamment dans le domaine de l'agro-alimentaire. La présente demande concerne également un procédé de lubrification d'engrenage, de préférence d'engrenage industriel, notamment dans le domaine de l'agro-alimentaire, comprenant la mise en œuvre de la composition lubrifiante selon l'invention. The present application also relates to the use of a lubricant composition according to the invention for gear lubrication, preferably of industrial gearing, in particular in the field of food processing. The present application also relates to a gear lubrication process, preferably industrial gearing, particularly in the field of food processing, comprising the implementation of the lubricant composition according to the invention.
La présente invention va maintenant être décrite à l'aide d'exemples non limitatifs. The present invention will now be described by way of non-limiting examples.
Composés mis en œuyre dans les exemples Compounds set in the examples
Polyisobutylène polyisobutylene
Indopol H7® 440 -34  Indopol H7® 440 -34
hydrogéné  hydrogen
Polyisobutylène  polyisobutylene
Lubrizol 3130A® 3  Lubrizol 3130A® 3
hydrogéné  hydrogen
Anti-usure  Wear
Irgalube 232®  Irgalube 232®
phospho-soufré  phospho-sulfur
Antimousse  Defoamers
mélange  mixed
d'antioxydants,  antioxidants,
d'anti-usures et  anti-wear and
d'anticorrosion  anticorrosion
La masse molaire Mn du polyisobutadiène hydrogéné est mesurée par chromatograph par perméation de gel (dérivée de ASTM D3536).  The molar mass Mn of the hydrogenated polyisobutadiene is measured by gel permeation chromatograph (derived from ASTM D3536).
La viscosité cinématique à 40°C est mesurée selon la norme ISO 3104.  The kinematic viscosity at 40 ° C is measured according to ISO 3104.
L'indice de viscosité est mesuré selon la norme ISO 2909.  The viscosity index is measured according to the ISO 2909 standard.
Le point d'écoulement est mesuré selon la norme ISO 3016.  The pour point is measured according to ISO 3016.
Compositions compositions
Compositions comparatives (huile blanche + polyisobutadiène hydrogéné)  Comparative compositions (white oil + hydrogenated polyisobutadiene)
Ces compositions lubrifiantes qui ne comprennent que la combinaison d'huile pour contact alimentaire et le PIB ne présentent pas les caractéristiques attendues en termes de point d'écoulement et donc en terme de tenue à basses températures. These lubricating compositions which only include the combination of food contact oil and PIB do not have the expected characteristics in terms of pour point and therefore in terms of resistance at low temperatures.
FINAVESTAN A360B® 46,5 46,5 45 45 FINAVESTAN A360B® 46.5 46.5 45 45
FINAVESTAN A80B® 46,5 FINAVESTAN A80B® 46.5
INDOPOL H300® 48,5 48,5INDOPOL H300® 48.5 48.5
INDOPOL H1200® INDOPOL H1200®
INDOPOL H2100®  INDOPOL H2100®
LUBRIZOL 3130A ® 48,5  LUBRIZOL 3130A ® 48.5
INDOPOL H25® 50  INDOPOL H25® 50
INDOPOL H7® 50  INDOPOL H7® 50
KETJENLUBE 240® 5 5 5 5 5  KETJENLUBE 240® 5 5 5 5 5
Point d'écoulement (°C) -33 -24 -24 -27 -33  Pour point (° C) -33 -24 -24 -27 -33
Ces résultats montrent que la combinaison spécifique de l'invention d'une huile pour contact alimentaire fortuit (hors PAO) avec un PIB et un polymère ester permet d'obtenir une composition lubrifiante : These results show that the specific combination of the invention of a fortuitous food contact oil (excluding PAO) with a PIB and an ester polymer makes it possible to obtain a lubricating composition:
répondant aux critères de contact alimentaire fortuit ;  meeting the criteria for incidental food contact;
- présentant une viscosité élevée ;  having a high viscosity;
présentant un bas point d'écoulement et donc une bonne tenue à basses, voire très basses températures.  having a low pour point and therefore good performance at low or very low temperatures.
De manière particulièrement surprenante, par rapport aux compositions CC1 , CC2 et CC3, l'ajout d'un polymère ester présentant un point d'écoulement relativement élevé permet de fortement diminuer le point d'écoulement final de la composition lubrifiante et donc d'améliorer sa tenue à basses, voire très basses températures. In a particularly surprising manner, with respect to compositions CC1, CC2 and CC3, the addition of a relatively high pour point ester polymer makes it possible to greatly reduce the final pour point of the lubricant composition and thus to improve its behavior at low, even very low temperatures.

Claims

REVENDICATIONS
1 .- Composition lubrifiante comprenant : 1 .- Lubricating composition comprising:
- au moins une huile de base pour contact alimentaire, choisie dans les groupes II, III ou V selon les classes définies dans la classification API ou leurs équivalents selon la classification ATIEL ;  at least one base oil for food contact, chosen from groups II, III or V according to the classes defined in the API classification or their equivalents according to the ATIEL classification;
- au moins un polyisobutylène hydrogéné ;  at least one hydrogenated polyisobutylene;
- au moins un polymère ester choisi parmi les copolymères ester comportant un squelette hydrocarboné, des groupes pendants hydrocarbonés et des groupes pendants esters. at least one ester polymer chosen from ester copolymers comprising a hydrocarbon backbone, pendant hydrocarbon groups and pendant ester groups.
2. - Composition lubrifiante selon la revendication 1 , dans laquelle l'huile de base est choisie dans le groupe des huiles de base pour contact alimentaire choisies dans le groupe II. The lubricating composition of claim 1, wherein the base oil is selected from the group of food contact base oils selected from group II.
3. - Composition lubrifiante selon l'une des revendications 1 ou 2, dans laquelle l'huile de base est choisie parmi les huiles blanches. 3. - lubricating composition according to one of claims 1 or 2, wherein the base oil is selected from white oils.
4.- Composition lubrifiante selon l'une quelconque des revendications 1 à 3, dans laquelle le polyisobutylène hydrogéné est choisi parmi les polyisobutylènes hydrogénés de masse molaire comprise entre 400 et 2000. 4.- lubricating composition according to any one of claims 1 to 3, wherein the hydrogenated polyisobutylene is selected from hydrogenated polyisobutylenes with a molar mass of between 400 and 2000.
5.- Composition lubrifiante selon l'une quelconque des revendications 1 à 4, dans laquelle le polymère ester est choisi parmi les copolymères d'alpha-oléfine et d'acide polycarboxylique estérifié avec des alcools. 5. A lubricating composition according to any one of claims 1 to 4, wherein the ester polymer is selected from the copolymers of alpha-olefin and polycarboxylic acid esterified with alcohols.
6. - Composition lubrifiante selon l'une quelconque des revendications 1 à 5, comprenant au moins 38%, de préférence au moins 40%, en poids de polyisobutylène hydrogéné, de préférence au moins 45% en poids, par rapport au poids total de la composition lubrifiante. 6. - lubricating composition according to any one of claims 1 to 5, comprising at least 38%, preferably at least 40%, by weight of hydrogenated polyisobutylene, preferably at least 45% by weight, relative to the total weight of the lubricating composition.
7. - Composition lubrifiante selon l'une quelconque des revendications 1 à 6, comprenant au moins 1 % en poids de polymère ester, de préférence entre 1 et 20%, de préférence entre 2 et 10%, de préférence au moins 5%, de préférence entre 5 et 20%, de préférence entre 5 et 10%, par rapport au poids total de composition lubrifiante. 7. - lubricating composition according to any one of claims 1 to 6, comprising at least 1% by weight of ester polymer, preferably between 1 and 20%, preferably between 2 and 10%, preferably at least 5%, preferably between 5 and 20%, preferably between 5 and 10%, relative to the total weight of lubricating composition.
8. - Composition lubrifiante selon l'une quelconque des revendications 1 à 7 présentant un point d'écoulement inférieur à -24°C. 8. - Lubricating composition according to any one of claims 1 to 7 having a pour point of less than -24 ° C.
9. - Composition lubrifiante selon l'une quelconque des revendications 1 à 8 présentant une viscosité cinématique à 40°C mesurée selon la norme ISO 3104 comprise entre 500 et 2000 mm2/s. 9. - lubricating composition according to any one of claims 1 to 8 having a kinematic viscosity at 40 ° C measured according to ISO 3104 between 500 and 2000 mm 2 / s.
10. - Utilisation d'une composition lubrifiante selon l'une quelconque des revendications 1 à 9 pour la lubrification d'engrenage, de préférence d'engrenage industriel. 10. - Use of a lubricant composition according to any one of claims 1 to 9 for the lubrication of gear, preferably industrial gear.
EP17832483.6A 2016-12-12 2017-12-12 Lubricant composition for industrial gearing coming into contact with food Active EP3551736B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1662312A FR3060016B1 (en) 2016-12-12 2016-12-12 LUBRICATING COMPOSITION FOR INDUSTRIAL GEAR WITH FOOD CONTACT
PCT/EP2017/082363 WO2018108873A1 (en) 2016-12-12 2017-12-12 Lubricant composition for industrial gearing coming into contact with food

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EP3551736A1 true EP3551736A1 (en) 2019-10-16
EP3551736B1 EP3551736B1 (en) 2022-09-21

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US (1) US11525101B2 (en)
EP (1) EP3551736B1 (en)
CN (1) CN110062803A (en)
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FR2709495A1 (en) * 1993-09-03 1995-03-10 Exxon France Lubricating composition based on white oil.
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EP3265547A1 (en) 2015-03-03 2018-01-10 Basf Se Pib as high viscosity lubricant base stock

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CN110062803A (en) 2019-07-26
US11525101B2 (en) 2022-12-13
FR3060016A1 (en) 2018-06-15
EP3551736B1 (en) 2022-09-21
FR3060016B1 (en) 2020-10-23
US20190330557A1 (en) 2019-10-31
WO2018108873A1 (en) 2018-06-21

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