Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/30—Low-molecular-weight compounds
  • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G18/348—Hydroxycarboxylic acids
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
  • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/08—Processes
  • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/30—Low-molecular-weight compounds
  • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
  • C08G18/3203—Polyhydroxy compounds
  • C08G18/3206—Polyhydroxy compounds aliphatic
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/30—Low-molecular-weight compounds
  • C08G18/36—Hydroxylated esters of higher fatty acids
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
  • C08G18/72—Polyisocyanates or polyisothiocyanates
  • C08G18/80—Masked polyisocyanates
  • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
  • C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
  • C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
  • C08G18/8012—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with diols
  • C08G18/8019—Masked aromatic polyisocyanates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
  • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
  • C11C3/02—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with glycerol
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
  • C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
  • C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
  • C11C3/06—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils with glycerol
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G2110/00—Foam properties
  • C08G2110/0008—Foam properties flexible
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G2110/00—Foam properties
  • C08G2110/0025—Foam properties rigid
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G2110/00—Foam properties
  • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Definitions

• Polyurethane is a polymer that is obtained by condensation of polyols combined with polyisocyanates. It is subdivided into two large groups: thermosets and thermoplastics.
• thermosets The most common thermostable polyurethanes are widely used foams as thermal insulators and as resilient foams, but there are also polyurethanes that are elastomers, adhesives and high performance sealants, paints, fibers, sealants for packaging, gaskets, preservatives, automobile components, in the construction industry, furniture and many other applications.
• the polyols used in the production of polyurethanes are generally compounds with molecular weight in the range of 500 to 5000 g / mol. Depending on the chain length of these diols and glycols, the properties of polyurethanes change. If the polyol has a low molecular weight, it creates rigid plastics, and if it has a high molecular weight, it produces flexible elastomers. Polyols are reactive substances, usually liquid, containing at least two isocyanate reactive groups linked to a single molecule. They have a profound effect on the properties of the finished polyurethane. The properties of polymers are associated with isocyanate linkages, but the structure of the polyol exerts a direct action on the processing and finishing properties of the polymer.
• the polyols used in the polyurethane production industry are generally derived from petroleum; however, there is currently the tendency to use renewable sources, such as vegetable oils, for the production of polyols based on said oils.
• US patent application US 20070232816 discloses a process for the production of a polyol monomer which consists in reacting an unsaturated fatty acid or its corresponding triglycerides with a polyhydric alcohol in the presence of a catalyst and an emulsifier in order to prepare a monoglyceride Said process further comprises an epoxidation stage of the unsaturated fatty acids of said monoglyceride and a reaction stage of epoxidized monoglyceride with a polyhydric alcohol.
• Publication WO / 2006/012344 provides methods for the preparation of unsaturated polyols based on modified vegetable oils, as well as methods for the production of oligomeric polyols based on modified vegetable oils.
• This publication shows the method of making an oligomeric polyol based on modified vegetable oil, where a mixture comprising an epoxidized vegetable oil and a compound that allows the opening of the ring to form an oligomeric polyol based on vegetable oil is reacted modified, where the modified vegetable oil based oligomeric polyol comprises at least 20% oligomers and a viscosity at 25 ° C less than about 8 Pa s.
• Publication WO / 2009/058367 as well as publication WO / 2009/058368 refers to methods for obtaining a polyester polyol from natural oils. Said method comprises the step of reacting the monohydroxy fatty acids with a multifunctional initiator reactive to the esters to form the polyester polyol. This document reveals a process in which an oil meta-analysis is carried out (Sunflower, Soy, Ca ⁇ óla) followed by an epoxidation process.
• US patent application US 6,433,121 discloses a method for the production of polyols based on natural oils through the use of a two consecutive step process involving epoxidation and hydroxylation; In this document it is generally mentioned that palm oil can be used; however, without being limiting, the preferred embodiment of the invention corresponds to the use of soybean oil.
• Publication WO / 2009/058368 discloses methods for obtaining a polyester polyol from natural oils. Said method comprises a reaction step of the hydroxylated fatty acids with a multifunctional initiator reactive to the esters to form the polyester polyol.
• the process revealed in this document performs an oil meta-analysis (Sunflower, Soy, Ca ⁇ óla) followed by an epoxidation process. Additionally, it is generally mentioned in the document that palm oil could be used in the process.
• Palm oil is the second most harvested vegetable oil in the world followed by soybean oil, 90% of the oil produced is exported from Malaysia and Indonesia. Palm oil is derived from the fruits of palm clusters, it is semi-solid at room temperature by the combination of high and low melting triglycerides and a red-orange color due to the high amount of carotenes. It is mainly composed of fatty acids, the typical amounts of these acids are: 45% palmitic, 40% oleic, 10% linoleic and 5% stearic. Thanks to its good resistance to oxidation and heating at high temperatures, palm oil is used in various industries for its good performance and economy. In energy terms, palm oil requires less energy for the production of a ton than other oils such as soy and rapeseed.
• oligomeric polyols that are obtained from palm oil and with compositions comprising said polyols, as well as a process for obtaining an oligomeric polyol based on modified palm oil, which comprises providing an epoxidized composition based on palm oil to react it with a compound that allows the opening of the ring to form an oligomeric polyol, wherein the oligomeric polyol a Modified palm oil base comprises at least 40% by weight of oligomers, has a hydroxyl number of about 65 mg KOH / g sample or less, an average hydroxyl functionality number of 2.5 or less and a viscosity at 25 ° C less than about 4 Pa s.
• the present invention provides a simple method in its implementation, not expensive, and ultimately results in a product of high technical and functional qualities that places it above those which, conventionally and within the same line are found in the art prior to the advantage of having a polyol from renewable natural sources within its raw materials.
• polyols with molecular weights between 314 and 3366 and with a hydroxyl number between 50 and 450 mgKOH / g sample are obtained.
• the resulting rigid foams were tested for density (according to ASTM C373-88) with results between 0.284 and 0.658 g / cm 3 , Young's modulus (according to ASTM D695-10) with results between 8.94522 and 54.92330 MPa and maximum effort (according to ASTM D695-10) with results between 0.92037 and 8.29101 MPa.
• the present invention relates to the process for the production of a polyol from palm oil and to rigid polyurethane foams prepared from said polyol derived from palm oil.
• the present invention provides a method for obtaining monomeric polyols obtained from palm oil and having a hydroxyl number between 50 and 450 mgKOH / g sample.
• the polyols of the present application can be obtained by means of a procedure based on the following four mother routes:
• route 1 starts from the alcoholysis of palm oil to obtain fatty acids, which undergo a process of maleinization in order to introduce carboxylic groups and from these extend the chain with glycerin; and so get a palm oil polyol.
• the monoglycerides of the palm oil are prepared but unlike the route 1, the maleinization is not performed, but a polyol is obtained from palm oil by means of the glycerolysis process.
• Glycerolysis takes place at temperatures between 170 and 280 ° C, obtaining higher reaction rates at higher temperatures. Is not recommended in any case exceed 260 ° C, provide good agitation system (350-420 rpm) and using inert atmosphere (nitrogen, argon or C0 2).
• the glycerolysis process is usually performed in the presence of a solvent and a catalyst. The selection of a good catalyst allows lower temperatures to be used.
• the glycerolysis reaction must be carried out under the action of a catalyst that can be homogeneous (acidic or basic), or heterogeneous.
• a catalyst that can be homogeneous (acidic or basic), or heterogeneous.
• the catalysts for obtaining mono and di glycerides include lead acetate, calcium acetate, lead oxide and lithium ricinoleate, sulfuric acid, hydrochloric acid, sulfonic acid, sodium hydroxide.
• Lead and calcium acetates like lithium ricinoleate, allow excellent glycerolysis to be obtained in the shortest time (40 to 50 minutes) and relatively moderate temperatures (235 to 240 ° C) and, most importantly, using minimum amounts of catalyst.
• the mother route 3 of the present invention corresponds to the preparation of a modified palm oil polyol by transesterification with pentaerythriol, which is useful when a considerable increase in tensile properties, hardness and resistance to chemical attack is required, this is due to a greater degree of crosslinking caused by the increase in the content of hydroxyl groups.
• a polyol is produced from palm oil by epoxidation of the double bond, where initially a process of palm oil meta-analysis is carried out to obtain the fatty acid methyl esters (FAME ), which undergo an epoxidation process with hydrogen peroxide to generate the performic acid in situ.
• FAME fatty acid methyl esters
• polyurethanes are prepared from the polyols obtained by any of the four routes or by combining them.
• polyurethanes are produced by reacting a mixture of a polyol obtained herein. invention, a commercial polyol, a surfactant, a catalyst and an isocyanate.
• the polyurethanes can be high density rigid polyurethane foams.
• Figure 1 shows a scheme exemplifying the production of a polyol from palm oil by Route 1.
• Figure 2 shows a scheme exemplifying the production of a polyol from palm oil using Route 2.
• Figure 3 shows a scheme exemplifying the production of a polyol from palm oil by Route 3.
• Figure 4 shows a scheme exemplifying the production of a polyol from palm oil using Route 4.
• Figure 5 shows a scheme exemplifying the production of a polyol from palm oil by combining Route 4 and Route 2.
• the present invention relates to a process for the production of a polyol from palm oil and to rigid polyurethane foams prepared from the palm oil derived polyol mixed with a commercial polyol.
• Figure 1 generally describes route 1. Specifically, this route comprises two different methods, the first comprising the maleinization of palm oil from heating it and mixing with maleic anhydride. The mixture is subsequently reacted in the presence of a reflux condenser and inert atmosphere, the reaction occurs there for a certain period, obtaining the polyol.
• the second method corresponds to the maleinization of fatty acids, starting from a mixture of palm oil with sodium hydroxide and an ethanol-water solution.
• the mixture obtained is heated and stirred.
• a small amount of concentrated sulfuric acid is added, evidencing the separation of the organic phase and the aqueous phase.
• saturated sodium chloride solution is added.
• the aqueous phase is removed.
• fatty acids can be obtained which are mixed with glycerol previously blocked by a reaction with MEK (methyl ethyl ketone), carried out with toluene sulfonic acid as catalyst and toluene as solvent.
• MEK methyl ethyl ketone
• the fatty acids then react with the glycerol blocked in the presence of a catalyst, toluene sulfonic acid and heat.
• the product of this reaction is evaporated to obtain blocked monoglyceride, which subsequently reacts under nitrogen atmosphere with maleic anhydride.
• Sulfuric acid is added to the product of this reaction.
• the organic phase obtained is washed and evaporated to finally obtain the polyol.
• FIG. 2 summarizes Route 2, which corresponds to the production of polyol from palm oil by glycerolysis.
• This route comprises the reaction between palm oil with glycerol, terbutanol as solvent and sodium hydroxide as catalyst, in the presence of heat.
• the product of this reaction is neutralized with hydrochloric acid and evaporated for solvent removal.
• the phase obtained is separated by the addition of n-hexane, allowing to discard the residual glycerin from the polyol finally obtained.
• Figure 3 summarizes route 3, related to the production of polyol from modified palm oil by transesterification with pentaerythritol.
• This route includes the reaction between palm oil, pentaerythritol and lead oxide, in the presence of heat, with continuous stirring and in an inert atmosphere of nitrogen.
• the reaction product is treated with n-hexane, allowing the formation of two phases: the precipitate containing glycerol is then discarded and the other phase is subjected to evaporation to obtain the polyol.
• route 4 is summarized in Figure 4 and constitutes an epoxidation process of fatty acid methyl esters (FAME), which are previously obtained by palm oil meta-analysis.
• Said methanolysis comprises the reaction between palm oil and methanol in the presence of sodium hydroxide. Subsequently, the glycerin phase is discarded and the phase of interest is washed with phosphoric acid, discarding the solids formed and neutralizing.
• the product (FAME) is evaporated to remove excess methanol.
• the DMARDs are reacted with formic acid in the presence of hydrogen peroxide.
• the reaction is evidenced by changing the color from orange to light yellow.
• the product is washed with water, sodium bicarbonate and sodium chloride, neutralizing the solution, which is subjected to evaporation to remove moisture and allowing the polyol to be obtained.
• Figure 5 describes other embodiments of the invention, which correspond to the combination of routes 2 and 4 and are indicated in greater detail below.
• polyol to be obtained from the olein phase of crude palm oil, using lead oxide as a catalyst.
• the method is then given by epoxidation of the olein phase of the crude palm oil with formic acid, in the presence of heat. Then add hydrogen peroxide and stir. The reaction is evidenced by the color change from orange to light yellow.
• the reaction product is washed with water, sodium bicarbonate and sodium chloride, discarding the aqueous phase and subjecting the organic phase to glycerolysis (reaction with glycerin) using lead oxide as a catalyst, thus obtaining the polyol.
• Another embodiment of the invention corresponds to obtaining the polyol from the olein phase of crude palm oil, using NaOH as catalyst.
• This modality comprises the same steps mentioned for the previous modality, with the difference that glycerolysis of the organic phase occurs in the presence of sodium hydroxide, with a subsequent neutralization of the excess catalyst with phosphoric acid.
• Still another embodiment of the invention allows polyol to be obtained from the olein phase of the bleached and deodorized palm oil refinement (RBD).
• RBD bleached and deodorized palm oil refinement
• the same steps are used as for the previous modalities, using the aforementioned raw material and sodium hydroxide as a catalyst in glycerolysis.
• the last modality corresponds to obtaining polyol from the olein phase of the bleached and deodorized palm oil refinement (RBD) but using lead oxide as a catalyst.
• the aforementioned steps are used, with the exception that the olein phase of the RBD and lead oxide is used as a raw material as a catalyst in glycerolysis.
• the polyol obtained is mixed with a short chain polyol (diethylene glycol, 1,6 butanediol), a catalyst (dibutyltin dilaurate, tin octoate, tertiary amine catalysts, water, a surfactant (based on silicone or organosiloxanes) and methylene diphenyl diisocyanate (MDI)
• a short chain polyol diethylene glycol, 1,6 butanediol
• a catalyst dibutyltin dilaurate, tin octoate, tertiary amine catalysts
• water water
• a surfactant based on silicone or organosiloxanes
• MDI methylene diphenyl diisocyanate
• the mixture was cooled to room temperature and the catalyst was neutralized with a 10% HCI solution, checking the pH with indicator paper. Then, the glycerin and residual solvent were removed and the product of interest was broken down to ensure complete removal of the solvent in the solution.
• the rotoevaporation temperature was 90 ° C and was carried out for 3 hours.
• the palm oil methanolysis was carried out in a 500 ml reaction balloon, taking 500 grams of palm oil, along with 160.8 g of methanol and 9 grams of sodium hydroxide. The mixture was brought to a temperature of 70 ° C with stirring of 1000 rpm for 1 hour and a half.
• the product was taken to a separatory funnel to discard the glycerin phase that was at the bottom.
• the phase of interest was subsequently washed with 100 ml of 0.015N phosphoric acid at 60 ° C, the solids formed were discarded and the washings were repeated with water at 60 ° C until the pH was neutralized.
• the phase of interest is subjected to rotoevaporation for 3 hours at a temperature of 80 ° C, to remove excess methanol.
• the product obtained corresponds to fatty acid methyl esters (FAME).
• FAME fatty acid methyl esters
• it was added in a 1000 ml reaction ball, 190 grams of FAME and 7.71 grams of formic acid. The mixture was brought to heating of 40 ° C and stirring of 800 rpm.
• the resulting mixture was rotoevaporated for 4 hours at 90 ° C to remove moisture.
• the polyol was obtained.
• EXAMPLE 6 Obtaining polyol using routes 2 and 4 (epoxidation and glycerolysis) from the olein phase of crude palm oil and using lead oxide as catalyst
• EXAMPLE 7 Obtaining polyol using routes 2 and 4 (epoxidation and glycerolysis) from the olein phase of crude palm oil and using sodium hydroxide as catalyst
• the catalyst was neutralized with drops of phosphoric acid, thus preventing the formation of soaps. Finally, the polyol obtained was characterized. Hydroxyl numbers between 400 and 440 mg KOH / g sample were obtained.
• EXAMPLE 8 Obtaining polyol using routes 2 and 4 (epoxidation and glycerolysis) from the olein phase of the deodorized bleached refined crude palm oil and using sodium hydroxide as catalyst 200 grams of the olein phase of the crude palm oil and 9.97 grams of formic acid were taken in a 500 ml reaction balloon, coupled with reflux condenser, heating plate to achieve a temperature of 50 ° C and magnetic stirring at 800 rpm, the reaction was started and 22.11 grams of hydrogen peroxide was added dropwise with constant stirring for 90 minutes. The reaction was allowed to continue for a further 2 hours. The formation reaction of the epoxidized oil is evidenced by a color change from orange to light yellow.
• the catalyst was neutralized with drops of phosphoric acid, thus preventing the formation of soaps. Finally, the polyol obtained was characterized. Hydroxyl numbers between 370 and 420 mg KOH / g sample were obtained.
• EXAMPLE 9 Obtaining polyol using routes 2 and 4 (epoxidation and glycerolysis) from the olein phase of the deodorized bleached refined crude palm oil and using lead oxide as catalyst
• the prepolymer is formed by taking 30 g of polyol, 76.92 g of surfactant and 20 ml of MEK (methyl ethyl ketone) in a 250 ml reaction balloon at 50 ° C for 30 minutes. Next, the pre-polymer is transferred to a 1000 ml beaker and 14.88 grams of TDI (Toluen diisocyanate) are added and stirred mechanically for 3 hours keeping the temperature at 70 ° C. After completion of the reaction, the pre-polymer is cooled to 50 ° C and 4.96 grams of MEKO (methyl ethyl ketoxime) are added to block free NCO groups. This reaction takes place for 2 hours. Finally, 2.88 grams of TEA (triethylamine) are added for 30 minutes with vigorous stirring keeping the temperature at 50 ° C. Then an amount of 50% weight / weight of water is added dropwise to form an emulsion.
• MEK methyl ethyl ketone
• EXAMPLE 11 Preparation of a polyurethane varnish from polyol obtained with route 1 by the second method
• the prepolymer is formed by adding 12 g of polyol, 50 g of surfactant and 10 ml of MEK in a 250 ml reaction balloon, at a temperature of 50 ° C for a period of 30 minutes. Then, the prepolymer is transferred to a 1000 ml beaker and 12.52 grams of TDI are added and stirred mechanically for 3 hours keeping the temperature at 70 ° C. After completion of the reaction, the prepolymer is cooled to 50 ° C and 5 grams of MEKO (methyl ethyl ketoxyma) are added to block free NCO groups. This reaction takes place for 2 hours. Finally, 2.2 grams of TEA are added for 30 minutes with vigorous stirring keeping the temperature at 50 ° C. Then an amount of 50% weight / weight of water is added dropwise to form an emulsion
• EXAMPLE 14 Preparation of a polyurethane foam from polyol obtained with route 4 10 g of palm polyol and 10 g of DEG (diethylene glycol) were weighed, then 0.19 g of DBTL catalyst (dibutiltin dilaurate) was added, followed by 2.69 g of water and 0.27 g of surfactant, this premix it was stirred at room temperature for a few minutes and then 13.24 g of MDI was added. This reaction is highly exothermic.
• DEG diethylene glycol
• the resulting rigid foams were tested for density (according to ASTM C373-88) with results between 0.284 and 0.658 g / cm 3 , Young's modulus (according to ASTM D695-10) with results between 8.94522 and 54.92330 MPa and maximum effort (according to ASTM D695-10) with results between 0.92037 and 8.29101 MPa.
• the resulting semi-rigid foams were tested for density (according to ASTM C373-88) with results between 0, 120 and 0.158 g / cm3, Young's modulus (according to ASTM D695-10) with results between 0.77727 and 1.54311 MPa and maximum effort (according to ASTM D695-10) with results between 0.07012 and 0.09753 MPa.
• EXAMPLE 19 Additional experimental runs Initially it starts from the 4 mother routes (Route 1-4, taking into account that route 1 includes Method I and II). From these routes, other routes are derived in the order listed below:

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Health & Medical Sciences (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• General Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Polyurethanes Or Polyureas (AREA)
• Polyesters Or Polycarbonates (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48043223

Family Applications (1)

Country Status (9)

Cited By (1)

Families Citing this family (2)

Citations (12)

Family Cites Families (7)

• 2011
  • 2011-10-03 CO CO11130078A patent/CO6650065A1/es unknown
• 2012
  • 2012-10-03 MX MX2014004087A patent/MX342415B/es active IP Right Grant
  • 2012-10-03 SG SG11201401245SA patent/SG11201401245SA/en unknown
  • 2012-10-03 EP EP12837878.3A patent/EP2765146B1/en active Active
  • 2012-10-03 WO PCT/IB2012/001954 patent/WO2013050854A1/es not_active Ceased
  • 2012-10-03 JP JP2014534004A patent/JP6255345B2/ja active Active
  • 2012-10-03 MY MYPI2014700816A patent/MY170130A/en unknown
  • 2012-10-03 BR BR112014008039A patent/BR112014008039A2/pt not_active Application Discontinuation
  • 2012-10-03 US US14/349,029 patent/US10246547B2/en active Active

Patent Citations (12)

Non-Patent Citations (8)

Also Published As

Similar Documents

Legal Events