TR201815532A2 - SLIDING COMPOSITIONS FOR PLASTICS - Google Patents

Abstract

The present invention relates to a process for producing a lubricant composition comprising a glycerol monoester, said method comprising reacting a mixture comprising glycerol and a fatty acid under the catalyst of olive leaf extract containing oleuropein.

Description

DESCRIPTION LUBRICANT COMPOSITIONS FOR PLASTICS TECHNICAL FIELD The present invention is to be used in the plastics industry, especially in PVC applications. for lubricant compositions containing glycerol monoester and for their production It's about a method.

KNOWN STATE OF THE TECHNIQUE Glycerol monooleate, internal lubricant in the plastics industry, especially in PVC applications It is an ester structure used as a solvent. Lubricants polymer-polymer, metal- reduces the friction between metal, polymer-metal, filler-filler, polymer-filler.

Said lubricants have high cohesion and low evaporation properties.

Like all polymers, PVC is made up of long chain molecules. These are melt However, it is highly viscous and will not adhere to the metal components of the processing equipment. tends. This problem can be overcome by using sliders. rigid The main function of lubricants in PVC (rPVC) and other polymers, internal and external is to reduce friction. Thus, ease of flowing at lower temperatures, decrease in degradation tendency, increase in production rate, wear of equipment advantages such as reduction and less energy consumption are obtained.

Sliders are generally classified as internal or external. of the slider Solubility is generally determined by the molecular structure and polarity of the polymer. determines. Due to the possibility of polymer decomposition between the lubricant and the polymer. A complete resolution is not desirable. Both types of lubricant with PVC polymer Although it is mixed, it functions differently. However, most sliders are both external It also has internal slider combinations.

Outer lubricants are largely insoluble in PVC. Migrate to the polymer surface in the molten state They become slippery on the metal surface of the process equipment and they show. In this case, the bond strength between polymer and lubricant is weak. is happening. The lubricant coats the metal surface of the processing equipment and It provides tooth slider by reducing the friction on its surface.

Internal lubricants are mostly soluble in PVC. PVC chains during the process They work by being involved in its movement at the molecular level and function as internal sliders. they see. The desired effect for an internal lubricant is that the polymer chains themselves flow. is to ensure that they can be arranged in such a way that they can be oriented towards its direction. So inside shear stress between polymer molecules is reduced by the slider, therefore, melt viscosity and temperature rise decrease.

Because commercial-scale equipment is very costly to operate, new The effects of an improved lubricant system on the properties of the rPVC compound, rheometers, dynamic two-cylinder mills, small-scale molding machines and are measured using laboratory-scale equipment such as extruders.

Whether a material has an internal or external slider, the material can be combined with rPVC. ability, adhesion times and effects on melt viscosity. Inner Lubricants do not significantly affect adhesion times, but do not affect melt viscosity. is lowering. Teeth sliders will have an effect on bonding time, but melting They do not significantly reduce the viscosity. These features include a torque rheometer and dynamic can be measured in a two-roll mill. rPVC, extruders (both single and twin screw), a wide variety of calendering machines and injection molding machines. can be processed on equipment.

The slider system in terms of processing and end-use feature requirements needs to be balanced. Single Screw extruders balance internal and external slider Twin Screw extruders, calenders and injection molders are more Requires more discs. Slider systems for processing equipment only not balanced, but the sliders also provide the necessary end-use features. affects positively. A fully optimized formulation, high throughput, low residue rates, high quality finished products and required physical provides features. Insufficient or excessive amount of lubricant may affect processing efficiency. causes it to decrease or may even stop processing. A balanced slider system (both correct amounts of both inner and outer slider), thermal stability times, output rate, It provides control over flowering, transparency and physical properties. Although there is a fairly wide range of slider classes for rPVC, most is thought of as wax or soap. The five main chemical classes are: amides; hydrocarbon waxes; fatty acid esters; fatty acids; metallic soaps. There are many types of ester lubricants used in various rPVC formulations: simple esters, glycerol esters, polyglycerol esters, montane esters, multifunctional partial esters of alcohols, fully esterified esters of polyfunctional alcohols.

Except for Montan esters, these esters are derived from various alcohols and fatty acids. is being done. These lubricants are often referred to as fatty acid esters.

Esters are generally versatile, with increasing carbon chain length and esterification. `Features can be changed as internal or external slider. Therefore, a The lubricant properties of the ester can be adapted for specific applications.

Monoesters of highly saturated fatty acids are colorless, odorless, crystalline solids.

These are the esters that exhibit the most internal lubricant function. The most common glycerol monostearate (GMS). GMS is a mostly "internal" system with some "external" features. it is a slider. Increasing the degree of esterification increases the tooth slip properties. is increasing. GlVlS is also a food additive due to its low toxicity. It can also be used as an ingredient. The most common fatty acid used as a lubricant for rPVC is palmitic (16 carbon chain length) and stearic (18 carbon chain length) acids. These In addition to some internal slider features, they are also good external sliders. Most their major disadvantage is their low volatility.

Glycerol esters (glycerides) react with glycerol by esterification of fatty acids. obtained as a result of its introduction. As a result of this reaction, mono-, mixtures of di- and triglycerides occur. Monoglycerides are then It must be separated by molecular distillation under high vacuum. Promise The main disadvantage of the chemical method in question is that the product yield is low and The high cost of molecular distillation.

In the state of the art, para-toluenesulfonic acid in monoglyceride production, chemicals such as sulfuric acid, zinc oxide, zinc chloride, aluminum chloride is used. In addition to the biodegradable glycerol and fatty acid components There is a need for methods in which the catalyst is also vegetable and biodegradable. A method by which it is carried out is described. used in the aforementioned method the ratio of glycerolzoleic acid is 2.2:1. Therefore, the excess amount of glycerol added, At the end of the reaction, it must be removed from the environment. This additional cost and causes waste of time. In addition, the reaction temperature in the method in question It is in the range of 250 - 255°C which means quite high temperature.

In addition, the use of pressure incurs additional costs.

In addition, in the products obtained with the catalysts used in the state of the art. There is a general color problem.

As a result, due to the above-mentioned negativities and existing solutions It is necessary to make an improvement in the relevant technical field due to the inadequacy of the is locked.

BRIEF DESCRIPTION OF THE INVENTION The present invention fulfills the above-mentioned requirements, has all the disadvantages plastic, especially PVC applications, which eliminates the problem and brings some additional advantages a lubricant composition suitable for relates to the method.

The primary aim of the invention is to produce a lubricant composition with high product yield. method to provide.

Another object of the invention is to produce a low cost and simple slide composition. method to provide.

Another object of the invention is the use of biodegradable and environmentally friendly materials. is to provide a lubricant composition production method.

Another object of the invention is a sliding composition that takes place at low temperatures. Another object of the invention is to make a product that eliminates the color problem of the obtained product. The slider composition is to provide a production method.

Another object of the invention is to provide a biodegradable and environmentally friendly catalyst.

Another object of the invention is to provide an improved performance slide composition. is to do.

Another object of the invention is to provide a PVC product with improved product quality.

In order to fulfill the above-described purposes, the glycerol monoester of the invention is The method for producing a lubricant composition containing glycerol and a fatty acid A mixture is reacted with olive leaf extract catalyzed with oleuropein. includes insertion.

To achieve the objectives of the invention, a lubricant containing glycerol monooleate The method for producing the composition is a mixture of glycerol and oleic acid, Olive leaf extract containing oleuropein, under catalyst, at 120°C to 200°C, acid for as long as necessary until the value is 3.0 or less, and so on. Reacting until the percentage of glycerol monooleate is less than 90% free.

To achieve the objectives of the invention, esterification of glycerol and fatty acids Catalyst for the production of a lubricant composition from the reaction via oleuropein Contains olive leaf extract.

For the purposes of the invention, the lubricant composition contains oleuropein. Contains olive leaf extract.

In order to achieve the objectives of the invention, 'PVC' product, olive containing oleuropein Contains leaf extract.

The structural and characteristic features of the invention and all its advantages are detailed below. will be more clearly understood by the explanation and therefore the evaluation This detailed explanation should also be taken into account.

DETAILED DESCRIPTION OF THE INVENTION In this detailed description, the slider composition of the invention and the preferred embodiments of the 'production method' of the composition only for good understanding and without any limiting effect is explained.

Additive and/or lubricant in the present invention plastic, especially PVC applications compositions containing glycerol monoester for use as It describes a new method for producing. The subject of the invention is the slider composition. olive leaf extract is used.

In the present application, "glycerin" and "glycerol" are used interchangeably.

In the present application, "glycerol ester" and "glyceride" are used interchangeably and they have at least one fatty acid moiety ester bonded to a glycerol main chain means a molecule. Monoglycerides or monoglycerol esters contains a fatty acid moiety; diglycerides contain two fatty acid moieties and triglycerides contain THREE fatty acid moieties.

In the present application, the "fatty acid" is covalently attached to a carboxyl functional group. means an emergency chain. The fatty acid is another covalent of the carboxyl group. a “free form” that does not bind or a “glyceride form” (m0n0-, di- and/or triglycerides).

In the present application, "percent" means percent by mass.

In the present application, lubricant and lubricant are used interchangeably. slider or Lubricant; polymer-polymer, metal-metal, polymer-metal, filler-filler or It means an additive that reduces the friction between the polymer and the filler.

Here the “fill” is calcium carbonate, carbon fiber, magnesium silicate hydroxide, carbon black, silica, kaolin etc. means filler. fillers, They are materials that make the product both cheap and satiating.

The fatty acids used in the invention are obtained from any fatty acid source. can be achieved. Fatty acids, substituted or unsubstituted, saturated or unsaturated, from 10 to It can have 22 carbon atoms. Preferred fatty acids such as decanoic acid, lauric acid, myristic acid, palmitic acid, pentadecanoic acid, stearic acid, aracidic acid, behenic acid, margaric acid, myristoleic acid, palmitoleic acid, oleic acid, gadoleic acid, erucic acid, ricinoleic acid, Iinoleic acid, Isanic acid, margaroleic acid, aracidonic acid, clupanadonic acid (clupanadonic acid), eicosapentaenoic acid, docosahexaenoic acid, fatty acids from soybean, oil from coconut acids, fatty acids from palm oil, oil from palm kernels acids are fatty acids obtained from tallow.

In a preferred embodiment of the invention, the fatty acid source is oleic acid or stearic acid. contains.

In a more preferred embodiment of the invention, the fatty acid source is oleic acid. contains.

Olive leaf prepared from olive leaves as catalyst in the present invention extract is used. Olive leaf extract, glycerol and fatty acid It has a large specific surface area to synthesize monoglyceride by esterification. adapted to have Thus, instead of an inorganic catalyst with the invention, A herbal solution is provided using a biodegradable catalyst.

In the state of the art, monoglyceride, especially in the production of glycerol monooleate such as para-toluenesulfonic acid, sulfuric acid, zinc oxide, zinc chloride, aluminum chloride inorganic catalysts are used. In the method of the invention, this Olive leaf extract is used instead of this type of catalyst.

Olive leaves have many antioxidant acid characters, especially oleuropein. Contains polyphenols. Thanks to these, the carbonyl carbon in fatty acids, It becomes more attackable by the oxygen in glycerol. So mentioned phenols allow carbonyl carbons to react more easily.

The method of the invention is a method for producing a glycerol monoester-containing composition. and the method in question is a mixture of glycerol and a fatty acid, oleuropein-containing in the presence of olive leaf extract and without any other catalyst. includes insertion.

Olive leaf extract used in the method of the invention is a bio-derived material. Due to the fact that the product obtained is completely environmentally friendly and biodegradable. This The glycerol monoester product obtained in this way is not only used as a plastic additive but also as a food additive. It can also be used in food packaging products such as stretch film.

The general structure of glycerol monoesters is illustrated by the general Formula (I) below.

Formula (I) In the present art, monoglycerides are produced commercially by glycerolysis of fats.

In these processes, it reacts with fatty acids by esterification with glycerol. It gives mon0-, di- and triglyceride mixtures with water.

The monoglycerides are then processed by molecular distillation under high vacuum. needs to be separated. The main disadvantage of this chemical method is the product low yield and high molecular distillation cost.

When the esterification reaction is carried out using olive leaf extract monoglyceride selectivity and the percentage of obtained monoglyceride increase significantly.

The higher the monoglyceride percentage, the higher the internal lubricant property of the product. makes it happen. Moreover, the olive leaf extract is simple and highly efficient. can be prepared by available methods.

Its chemical structure is shown by the following formula (II) and monooleolglycerol, glyceryl 1- glycerol monooleate, also called oleate, glycerylmonooleate, or 1-m0noolein It is a synthetic monoester. As a member of the 1-m0n0acylglycerol family are classified. Monoacylglycerols containing a glycerol acylated at the 1-position They are called 1-monoacylglycerols. Glycerol monooleate is water-insoluble and relatively It has a neutral structure.

Formula (II) Glycerol monooleate Monoglyceride ester of glycerine with oleic acid in the presence of a catalyst It is obtained by reacting to form (mono glyceride). Normally a One mole of oleic acid is used per mole of glycerol, but at the end of the reaction a mixture is used. is obtained. As a result of this reaction, monoester, diester and triester contains a composition. The subject of the invention is olive leaf extract as a catalyst. selectively and approximately 90% of this reaction when used monoester, ie glycerol monooleate, is formed.

The reaction monitoring was carried out by measuring the acid value at certain periods.

The decrease in the acid value, information about the conversion of oleic acid in the reaction medium It shows whether there is no acid left in the environment. It takes a long time for the acid value to drop can take time. Related to this, by changing the amount of catalyst in the reaction, By changing the temperature, the reactor stirrer speed is changed, the acid value is set to the desired levels are attained.

In the current application, the “acid number” is used to neutralize one gram of the chemical. means the mass, in milligrams, of potassium hydroxide required. Acid value measures the amount of carboxylic acid groups in the chemical solution.

In the present application, the acid number gives a measure of the free fatty acid in solution.

Esterification reactions are common, especially in the synthesis of long chain fatty acids. high temperature ranges are used. At higher temperatures, fatty acids It causes darkening of colors and decomposition of fatty acids.

In a preferred embodiment of the invention, the reaction is carried out at 120°C - 200°C. is carried out.

In a more preferred embodiment of the invention, the reaction is carried out at 150°C - 170°C. is carried out.

Whether the fatty acids used are solid or liquid, the reaction medium must be homogeneous. Agitator speed is set at a certain level so that solids do not collect at the bottom of the reactor. should be at one speed.

In a preferred embodiment of the invention, the reaction reactor stirrer rate is 50-500. In a more preferred embodiment of the invention, the reaction is carried out at 140 rpm. is carried out.

Oleuropein is more than 140 mg/g in the dry matter of olives and It reaches a concentration of 60-90 mg/g in the dry matter of the leaves (Morello et.

In a preferred embodiment of the invention, the amount of catalyst is relative to the inputs in the reaction. (glycerol and fatty acid) is 005% - 20% by total weight.

In a more preferred embodiment of the invention, the amount of catalyst is 0,3% based on the total weight of the inputs.

The reaction time depends on the type of fatty acid used, the amount of catalyst, the vacuum used. varies according to the amount.

In a preferred embodiment of the invention, the reaction takes 2-24 hours. is carried out.

In order for the said composition to have the desired properties, The ratios of glycerol and fatty acid are important. To obtain monoester In studies, the molar ratio of glycerol: fatty acid is usually 1:1. On the other hand, made for the reaction product to proceed selectively on more monoesters. The amount of glycerol can be used very high. But this is too much at the end of the reaction. incurs additional cost for the removal of glycerol. therefore available High amounts of glycerol were not used in the invention.

In a preferred embodiment of the invention, the glycerol: fatty acid molar ratio is 1:1 to 5:1.

Since the reactions are carried out at high temperatures and the glycerol used is a Since it will be removed from the environment during the partial reaction, the ratio of glycerol: fatty acid It is preferred that it be greater than 1.

In a more preferred embodiment of the invention, the glycerol: fatty acid molar ratio 1.1:1.

All the water formed at the end of the reaction in the method of the invention The vacuum used for removal is usually close to full vacuum. Well, approximately -0.7' bar.

Since the colors of fatty acids usually start to darken at high temperatures, The reaction is carried out under nitrogen gas. By-product during the reaction water is formed. Vacuum is applied to the mixture to remove the water.

The reaction is continued according to the amount of acid in the medium. Acid in the environment when no more, the reaction is terminated. After the mixture is cooled, the solid in the medium To remove the catalyst, the mixture is filtered and the product is taken. without dissolving The remaining excess catalyst is thus removed from the environment. Therefore, even a little some of the catalyst remains in the product.

In the present invention, glycerol and oleic acid react in the presence of olive leaf in the synthesis. When inserted, the acid value changes from 190 mg KOH/g to 53 mg KOH/g. is coming. In addition, the percentage of glycerol monooleate is comparable to that with a metal catalyst. showed an unexpected increase of 10-20% compared to Thus, 90% It is possible to obtain glycerol monooleate so made The slipperiness of the inventive slipper composition in extrusion applications It was also found that there was a synergistic increase in the effect.

Olive leaves extract is used as a catalyst in the method of the invention.

Its chemical structure in olive leaves is shown by the formula (III) below and It contains oleuropein (OE). Oleuropein elenolic acid and hydroxytyrosol It consists of glucosidic esters. Oleuropein (OE), a polyphenol It is the main component of Olea europea known as olive tree. Oleuropein plus olive It is also found in the fruit, bark and roots of the tree. Also Oleaceae It can also be obtained from other plant species belonging to the family, for example, ash tree. can be achieved. However, the oleuropein ratio in the olive leaf is quite high.

Oleuropein antiatherogenic, antiatherogenic, antiviral, anti-inflammatory, antimicrobial It has beneficial effects on health such as In addition, oleuropein lipoprotein It prevents oxidation, antioxidant, anti-cancer and Alzheimer's disease. It also helps prevent. Olive leaf extract 10 to 1,000 mg oleuropein may contain.

Formula (III) Olive leaves also contain other polyphenols. Among them eg apigenin, apigenin-Tglucoside, apigenin-T-rutinoside, caffeic acid, 5-caffeoylquinic acid (caffeoquuinic acid), cinnamic acid, O-coumaric acid, p-coumaric acid, cyanidin-B- glucoside, cyanidin-S-rutinoside, demethyloleuropein, 3,4-DHPEA-EDA, elenoic acid, elenoic acid glucoside, ferulic acid, gallic acid, hesperidin, homoorientin, homovanillic acid, 4-hydroxybenzoic acid, hydroxytirazole, Igstroside, Iuteolin, Iuteolin-4-glucoside, oleuroside, protocatesic acid, quercetin, quercitrin, rutin, salidroside, sinapic acid, syringic acid, tyrosol, vanillic acid, verbacoside.

In a more preferred embodiment of the invention, olive leaf extract together with oleuropein, apigenin, apigenin-Tglucoside, apigenin-T-rutinoside, caffeic acid, -caffeoylquinic acid (caffeoquuinic acid), cinnamic acid, O-coumaric acid, p-coumaric acid, cyanidin-S-glucoside, cyanidin-S-rutinoside, demethyloleuropein, 3,4-DHPEA-EDA, elenoic acid, elenoic acid glucoside, ferulic acid, gallic acid, hesperidin, homoorientin, homovanillic acid, 4-hydroxybenzoic acid, hydroxytirazole, Iigstroside, Iuteolin, Iuteolin-4- glucoside, Iuteolin-T-glucoside, Iuteolin-T-rutinoside, nuzhenide, oleoside, oleuropein aglycone, oleuroside, protocatesic acid, quercetin, quercitrin, rutin, salidroside, sinapic acid, syringic acid, tyrosol, vanillic acid and verbacoside. contains a selected phenolic compound. Said polyphenols are also similar to oleuropein. In this way, it contributes to the catalyst effect in the method of the invention.

Lubricant compositions of the invention are plastic, eg PVC rates can be added.

The slider compositions of the invention are formed by forming polymers with plastic properties. can be used in the processes. These slider compositions are particularly chlorinated polymers such as polyvinyl chloride (PVC), polyvinylidine chloride and their derivatives It is suitable for forming copolymers.

As an example of PVC products in which the lubricant composition of the invention will be used, window profiles, automobile seat skins, floor coverings, wallpapers, shoes bases, electrical cables, various packages can be given.

In addition, the inventive lubricant compositions are made of plastics such as polypropylene, polyethylene. and used in extrusion, injection works and of all polymers used in any of their formulations. It can also be used advantageously in shaping.

EXAMPLES Preparation of extract from olive leaf Olive leaves are cleaned by plucking one by one from the branch and washing with water.

Then the dried olive leaves are harvested using the soxhlet extractor in the figure and It was extracted with the help of an organic solvent such as hexane as the solvent and It is ensured that all active substances pass into the solvent. subsequently obtained The organic material was filtered with a 0.45 micron filter. Then with rotary dryer By removing the organic phase, a solid product was obtained. In experimental studies, this The material was used as a catalyst.

Addition of the inventive catalyst to the reaction The extract material obtained from olive leaves is the total of the inputs in the reaction. It is used up to 0.3% of its weight. After adding reactant glycerol and oleic acid The extract is then weighed and added.

The amount of monoester obtained by using the inventive catalyst is zinc chloride and p- Comparison with the amount of monoester obtained by using tol'uene sulfonic acid Parameter zinc chloride p-TSOH Olive Extract Acid Value 0.9 0.7 0.3 Hydroxyl Value 200 120 265 Reaction Time 8 hours 7.5 hours 7 hours

Claims (1)

REQUESTS . A method for producing a lubricant composition 'containing glycerol monoester' comprising reacting a mixture of glycerol and a fatty acid under the catalysis of olive leaf extract containing oleuropein. . It is the method according to claim 1 and no other catalyst is used in the said method. . The method according to claim 1 or ?, wherein the reaction is carried out at 120°C to 200°C. . The method according to claim 3, wherein the reaction is carried out at 150°C to 170°C. . The method according to any of the previous claims, where the amount of olive leaf extract is 0.05%-20% based on the total weight of reacted glycerol and fatty acid. . The method according to claim 5, where the amount of olive leaf extract is 0.37% based on the total weight of reacted glycerol and fatty acid. . The method according to any preceding claim, comprising reacting the mixture for the required time until the acid number is 3.0 or less. . The method according to claim 7, comprising reacting the mixture for the required time until the percentage of monoester is at least 50%. . The method according to claims 8, comprising reacting the mixture for the required time until the percentage of monoester is at least 90%. 10. Method according to claims 7 to 9, wherein the reaction is carried out in 2 to 24 hours. The method according to any one of the preceding claims, wherein the molar ratio of glycerol: fatty acid is 1:1 to 5:1. A method according to claim 11 wherein the molar ratio of glycerol: fatty acid is 1.1:1. The method according to any one of the preceding claims, wherein the fatty acid source contains fatty acid in free form. The method according to claim 13, where the fatty acid source is decanoic acid, lauric acid, myristic acid, palmitic acid, pentadecanoic acid, stearic acid, aracidic acid, behenic acid, margaric acid, myristoleic acid, palmitoleic acid, oleic acid, gadoleic acid, erucic acid, ricinoleic acid, Iinoleic acid, isanic acid, margaroleic acid, aracidonic acid, clupanadonic acid (clupanadonic acid), eicosapentaenoic acid, docosahexaenoic acid, fatty acids obtained from soybean, palm oil acids obtained from coconut, contains a fatty acid selected from the group consisting of fatty acids obtained from palm kernel, fatty acids obtained from tallow. The method according to claim 14, the fatty acid source oleic acid or stearic acid The method according to claim 15, the fatty acid source containing oleic acid. The method according to any one of the previous claims, in which olive leaf extract apigenin, apigenin-Tgl'ucoside, apigenin-T-rutinoside, caffeic acid, 5-caffeoquinic acid (caffeoquinic acid), cinnamic acid, O-coumaric acid, p-coumaric acid, cyanidin-3-glucoside, cyanidin-S-rutinoside, demethyloleuropein, 3,4-DHPEA-EDA, elenoic acid, elenoic acid glucoside, ferulic acid, gallic acid, hesperidin, homoorientin, homovanillic acid, 4-hydroxybenzoic acid, hydroxytriazole , Iigstroside, Iuteolin, luteolin-4-glucoside, Iuteolin-T-glucoside, luteolin-7-rutinoside, nuzhenide, oleoside, oleuropein aglycone, oleuroside, protocatesic acid, quercetin, quercitrin, rutin, salidroside, syrinolepic acid, Contains one or more phenolic compounds selected from the group consisting of , vanillic acid, verbacoside. 18. A method for producing a lubricant composition containing glycerol monooleate, where a mixture of glycerol and oleic acid is catalyzed by olive leaf extract containing oleuropein, at 120°C to 200°C, until the acid value is 3.0 or less. for a period of time and thus until the percentage of glycerol monooleate is at least 90%. 19. The method according to claim 18, wherein no other catalyst is used in said method. 20. It is a catalyst for the production of a lubricant composition from the reaction of glycerol and fatty acids through esterification, its feature is olive containing oleuropein. 21. It is a lubricant composition for plastics, its feature is that it contains olive leaf extract containing oleuropein. 22. It is a PVC product and its feature is that it contains olive leaf extract containing oleuropein. 23. The product according to claim 22, characterized in that it is a stretch film for food preservation. It is the use of olive leaf extract containing 24.0Ieuropein as a catalyst for the production of glycerol monooleate.