EP3861052A1 - Procédé de cristallisation d'un polyester comprenant au moins un motif 1,4:3,6-dianhydrohexitol - Google Patents
Procédé de cristallisation d'un polyester comprenant au moins un motif 1,4:3,6-dianhydrohexitolInfo
- Publication number
- EP3861052A1 EP3861052A1 EP19795286.4A EP19795286A EP3861052A1 EP 3861052 A1 EP3861052 A1 EP 3861052A1 EP 19795286 A EP19795286 A EP 19795286A EP 3861052 A1 EP3861052 A1 EP 3861052A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyester
- unit
- dianhydrohexitol
- crystallization
- diol
- 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.)
- Withdrawn
Links
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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/88—Post-polymerisation treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08G2250/00—Compositions for preparing crystalline polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/092—Polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
Definitions
- the invention relates to the field of polymers and relates more particularly to a process for the crystallization of polyester comprising units 1, 4: 3,6-dianhydrohexitol.
- PET Polyethylene terephthalate
- PETg modified glycol PET
- CHDM cyclohexanedimethanol units
- thermoplastic polyesters and other modified PETs have been developed by introducing into the polyester units 1, 4: 3,6-dianhydrohexitol, in particular isosorbide.
- Tg 75-80O
- PETg 75-85 ° C
- the glass transition of copolyesters of PET containing isosorbide can go up to 210 ° C.
- Polyesters comprising isosorbide units are polyesters eligible for the manufacture of many specialty products.
- polyesters are obtained by the molten route, but this technique does not make it possible to achieve the high molar masses (> 16,000 g / mol) required for applications requiring significant mechanical properties or the high melt viscosities necessary for their transformation.
- polyesters meeting the qualitative criteria imposed by industrial standards for the manufacture of fiber or bottle.
- post-condensation in the solid state is carried out in two phases. In a first phase, the polyester granules are crystallized under a flow of nitrogen or under vacuum at a temperature close to the optimal crystallization temperature of the polyester concerned. The advantage of crystallization is to avoid agglomeration at high temperature of the granules and to concentrate the ends of the chains in the amorphous domains.
- the granules are then heated in a second phase at a higher temperature in order to carry out the post-condensation in the solid state proper, generally between 5 ⁇ and 20 ° C below the melting temperature of the polymer. This step increases the molecular weight of the polymer.
- the pressures thus implemented are less than
- PET is crystallized either in a fluidized bed or in a sufficiently agitated rotary drum. This helps prevent coalescence of the granules. Nevertheless, polyesters comprising 1,4: 3,6-dianhydrohexitol units are more likely to agglomerate than PET.
- Application WO 2016/189239 A1 describes a process for manufacturing a polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit, at least one alicyclic diol unit other than 1,4: 3,6-dianhydrohexitol units and at least one terephthalic acid unit.
- these polyesters containing units 1, 4: 3,6-dianhydrohexitol, in particular isosorbide tended to become tacky on the surface before reaching the optimal crystallization temperature. The granules tend to coalesce and stick to the walls of the crystallizer.
- the invention relates to a process for crystallizing a polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit, and comprising the following steps of: supplying a semi-crystalline polyester comprising at least one unit 1, 4 : 3,6- dianhydrohexitol,
- the process according to the invention has the advantage of limiting, or even eliminating the phenomenon of agglomeration of the granules observed during the crystallization of polyesters comprising at least one 1,4: 3,6-dianhydrohexitol unit.
- the invention relates to a process for crystallizing a polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit, and comprising the following steps of: supplying a semi-crystalline polyester comprising at least one unit 1, 4 : 3,6- dianhydrohexitol,
- the process according to the invention thus makes it possible to obtain a crystallized polyester.
- the Applicant has found that the phenomenon of agglomeration of the granules observed during the crystallization of polyesters comprising at least one 1, 4: 3,6-dianhydrohexitol unit could be greatly limited, or even completely eliminated, when an additive was present during crystallization.
- the first step of the crystallization process according to the invention therefore consists in providing a semi-crystalline polyester comprising a 1,4: 3,6-dianhydrohexitol unit.
- the 1,4: 3,6-dianhydrohexitol unit of the polyester can be isosorbide, isomannide, isoidide, or a mixture thereof.
- the motif 1, 4: 3,6-dianhydrohexitol is isosorbide.
- Isosorbide, isomannide and isoidide can be obtained by dehydration of sorbitol, mannitol and iditol, respectively.
- isosorbide it is marketed by the Applicant under the brand name POLYSORB® Isosorbide.
- the polyester supplied in this first stage may be in a form conventionally used by a person skilled in the art, namely for example in the form of granules.
- the polyester used in the crystallization process according to the invention is a semi-crystalline thermoplastic polyester comprising: at least one 1, 4: 3,6-dianhydrohexitol unit (A),
- At least one aromatic dicarboxylic acid unit (C) is at least one aromatic dicarboxylic acid unit (C).
- the motif 1, 4: 3,6-dianhydrohexitol (A) is as defined above.
- the diol unit (B) of the thermoplastic polyester can be an alicyclic diol unit, a non-cyclic aliphatic diol unit or a mixture of an alicyclic diol unit and a non-cyclic aliphatic diol unit.
- an alicyclic diol unit also called an aliphatic and cyclic diol
- it is a unit different from 1,4: 3,6-dianhydrohexitol.
- It can thus be a diol chosen from the group comprising 1, 4-cyclohexanedimethanol, 1, 2-cyclohexanedimethanol, 1, 3-cyclohexanedimethanol, spiroglycol, tricyclo [5.2.1 .0 2,6 ] decane dimethanol (TCDDM), 2,2,4,4-tetramethyl-1,3-cyclobutandiol, tetrahydrofuranedimethanol (THFDM), furanedimethanol, 1,2-cyclopentanediol, 1,3-cyclopentanediol, 1, 2-cyclohexanediol, dioxane glycol (DOG), norbornane diols, adamanthanediols, pentacyclopentade
- the alicyclic diol unit is 1,4-cyclohexanedimethanol.
- the alicyclic diol motif (B) can be in the c / s configuration, in the trans configuration or can be a mixture of diols in the c / set trans configuration.
- non-cyclic aliphatic diol unit it may be a linear or branched non-cyclic aliphatic diol, said non-cyclic aliphatic diol possibly also being saturated or unsaturated.
- a saturated linear non-cyclic aliphatic diol is for example ethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,8-octanediol and / or 1, 10- decanediol.
- a saturated branched non-cyclic aliphatic diol is for example 2-methyl-1, 3-propanediol, 2,2,4-trimethyl-1, 3-pentanediol, 2-ethyl-2-butyl-1, 3-propanediol , propylene glycol and / or neopentylglycol.
- An unsaturated aliphatic diol unit is, for example, cis-2-butene-1,4-diol.
- the non-cyclic aliphatic diol unit is ethylene glycol.
- the aromatic dicarboxylic acid unit (C) is chosen from aromatic dicarboxylic acids known to those skilled in the art.
- the aromatic dicarboxylic acid can be a derivative of naphthalates, terephthalates, furanoates, thiophene dicarboxylate, pyridine dicarboxylate or isophthalates or mixtures thereof.
- the aromatic dicarboxylic acid is a derivative of terephthalates and preferably the aromatic dicarboxylic acid is terephthalic acid.
- a semi-crystalline thermoplastic polyester can comprise:
- the molar quantities being expressed relative to the total molar quantity of said polyester.
- the molar ratio of units 1, 4: 3,6-dianhydrohexitol (A) / sum of units 1, 4: 3,6-dianhydrohexitol (A) and of diol units (B) other than the units 1, 4: 3,6-dianhydrohexitol (A), ie (A) / [(A) + (B)], is at least 0.01 and at most 0.90.
- this ratio is at least 0.05 and at most 0.65.
- the diol unit (B) of the thermoplastic polyester the polyester is an alicyclic diol unit chosen from the group comprising 1, 4-cyclohexanedimethanol, 1, 2-cyclohexanedimethanol, 1, 3 -cyclohexanedimethanol or a mixture of these diols.
- the alicyclic diol unit is 1,4-cyclohexanedimethanol.
- the polyester is free from ethylene glycol.
- the diol unit (B) of the thermoplastic polyester the polyester is a saturated non-cyclic aliphatic diol chosen from the group comprising ethylene glycol, 1, 3-propanediol, 1, 4-butanediol, 1, 5-pentanediol, 1, 6-hexanediol, 1, 8-octanediol and / or 1, 10-decanediol.
- the saturated linear non-cyclic aliphatic diol is ethylene glycol.
- the second step in the process is to provide an additive.
- the Applicant has found that the addition of an additive preventing coalescence to the polyester comprising a 1,4: 3,6-dianhydrohexitol unit in the crystallization medium in particular proportions made it possible to reduce or prevent the coalescence of the granules of polyester during crystallization.
- the additive is added so as to coat the polyester granules and the walls of the crystallization reactor.
- the additive has an anti-caking function.
- the additive preventing coalescence is chosen from inorganic additives, organic additives and polymers.
- Inorganic additives include minerals such as calcium silicate, nanosilica powder, talc, microtalc, kaolinite, montmorillonite, synthetic mica, calcium sulfate, boron nitride, barium sulfate, gypsum, as well as inorganic oxides such as oxides and carbonates of silicon, aluminum, titanium, calcium, iron and magnesium.
- Organic additives include methylene carbonate, propylene carbonate, terephthalic acid, phthalic anhydride, succinic anhydride, sodium benzoate, lithium benzoate, calcium benzoate, magnesium benzoate, barium benzoate, potassium benzoate, lithium terephthalate, sodium terephthalate, potassium terephthalate, calcium oxalate, sodium laurate, potassium laurate, sodium myristate, potassium myristate, calcium myristate, sodium octacosanoate, calcium octacosanoate, sodium stearate, potassium stearate, lithium stearate, calcium stearate, magnesium stearate, barium stearate, montanate sodium, calcium montanate, sodium toluoylate, sodium salicylate, potassium salicylate, lithium dicarbonate, sodium naphthalate, sodium cyclohexanecarboxylate, organic sulfonates, amides of carboxylic acids
- the additive preventing coalescence is chosen from talc, sodium benzoate, fumed silica, optionally treated with dimethyldichlorosilane, and terephthalic acid. More preferably, the additive preventing coalescence is chosen from talc, sodium benzoate and terephthalic acid.
- the additive preventing coalescence is added in a proportion of between 100 and 25,000 ppm relative to the total weight of polyester.
- the additive preventing coalescence is talc and is added in a proportion of between 100 and 10,000 ppm, preferably between 500 and 5,000 ppm, more preferably between 1,000 and 4,000 ppm, more preferably between 1,500 and 3000 ppm relative to the total weight of the polyester. Even more preferably, the talc is added in a proportion of approximately 2000 ppm relative to the total weight of the polyester.
- the additive preventing coalescence is sodium benzoate and is added in an amount between 100 and 10,000 ppm, preferably between 2000 and 9000 ppm, more preferably between 4000 and 8000 ppm, more preferably between 6000 and 8000 ppm relative to the total weight of the polyester. Even more preferably, the sodium benzoate is added in a proportion of approximately 7000 ppm relative to the total weight of the polyester.
- the additive preventing coalescence is fumed silica, optionally treated with dimethyldichlorosilane (Aerosil R972) and is added in a proportion of between 100 and 10,000 ppm, preferably between 200 and 5000 ppm relative the total weight of the polyester. More preferably, the fumed silica is added in a proportion of about 250 ppm relative to the total weight of the polyester.
- the additive preventing coalescence is terephthalic acid and is added in a proportion of between 10,000 and 25,000 ppm, preferably between 15,000 and 25,000 ppm, more preferably between 17,500 and 22,500 ppm relative to the total weight of the polyester. More preferably, the terephthalic acid is added in a proportion of about 20,000 ppm relative to the total weight of the polyester.
- the third step of the process consists in crystallizing said polyester.
- Crystallization is a phenomenon by which a body, in this case polyester, partially passes into the crystal state.
- the polyester crystallization step is obtained by heating to the crystallization temperature. More particularly, the polyester is gradually heated along a temperature ramp up to the crystallization temperature. This temperature is then maintained for a sufficient time allowing its maximum crystallization.
- the crystallization temperature is a function of each polyester. However, this is a characteristic known and / or measurable by those skilled in the art. Thus, in the process according to the invention, the temperature used for the crystallization of the polyester is determined by a person skilled in the art from studies of differential scanning calorimetries (DSC).
- DSC differential scanning calorimetries
- the polyester crystallization step comprising a 1,4: 3,6-dianhydrohexitol unit is carried out under a pressure of at least 600 mbar absolute.
- crystallization is carried out under a pressure of at least 700 mbar absolute, at least 800 mbar absolute, at least 900 mbar absolute, and again, at least 1000 mbar absolute. From 800 mbar absolute pressure, the polyester expansion phenomenon is completely eliminated.
- the crystallization of the polyester comprising a 1,4: 3,6-dianhydrohexitol unit is carried out under a pressure in the range from 600 mbar absolute and up to atmospheric pressure.
- the crystallization step according to the invention can be carried out in the presence or absence of a flow of inert gas, such as for example a flow of nitrogen.
- the method according to the invention also comprises a step of recovering the crystallized polyester.
- the method according to the invention also comprises a step of increasing molar mass.
- This step of increasing molar mass can be made by post-polymerization of polyester.
- the post-polymerization is carried out by a post-condensation step in the solid state (PCS).
- Post-condensation in the solid state is carried out at a temperature between the glass transition temperature and the melting temperature of the polymer.
- the polyester to be semi-crystalline and crystallized.
- Post-condensation being a step well known to the skilled person, the latter can adjust the operating conditions according to the polyester for which he wishes to increase the molar mass.
- the invention also relates to a method of increasing the molar mass of a semi-crystalline polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit and comprising the following steps of: supplying a semi-crystalline polyester comprising at least one 1,4: 3,6-dianhydrohexitol unit as defined above,
- the polyester supplied in the first step may be as defined above.
- the additive preventing coalescence provided in the second step may be as defined above.
- the additive is added so as to coat the polyester granules and the walls of the crystallization reactor.
- the additive has an anti-caking function.
- the presence of the additive preventing coalescence has no or little effect on the kinetics of increase in molar mass of the semi-crystalline polyester comprising at least one 1, 4: 3,6- dianhydrohexitol.
- the stage of crystallization of the semi-crystalline polyester comprising a unit 1, 4: 3,6-dianhydrohexitol is carried out under a pressure ranging in the range going from 600 mbar absolute and up to atmospheric pressure .
- the method of increasing molar mass comprises a step of recovering the polyester after increasing the molar mass.
- This method of increasing molar mass is particularly advantageous in that it makes it possible to obtain semi-crystalline polyesters having an increased molar mass while limiting, or even eliminating, the phenomenon of agglomeration of the granules of said polyester during the step crystallization.
- the polyester in the absence of coalescence of the granules, the polyester has a homogeneous macroscopic structure, which makes it possible to obtain uniform speeds during the post-condensation stage and therefore at the end of the process, a homogeneity of the molar mass of said polyester.
- Figure 1 Evolution of the molar mass of Polyester 1 as a function of PCS time at 227 ° C with the addition of different additives.
- Figure 2 Flexural and tensile modules of Polyester 1 with the addition of different additives.
- FIG. 3 Elongation at break of Polyester 1 with the addition of different additives.
- FIG. 4 Evolution of the optical properties of Polyester 1 with the addition of different additives.
- the formula “moles% / diols” refers to the molar% of isosorbide relative to the diols.
- the reduced viscosity in solution (qred) is evaluated using an Ubbelohde capillary viscometer at 35 ° C in one of orthochlorophenol after dissolution of the polymer at 135 ° C with magnetic stirring. For these measurements, the concentration of polymer introduced is 5 g / L.
- Tg Glass transition temperature
- Tf melting temperature
- Antioxidant Irganox 1010 - BASF SE - Antioxidant: Hostanox P-EPQ - Clariant
- Germanium dioxide > 99.99%) - Sigma Aldrich
- polyesters (1 and 2) for an implementation according to the invention were synthesized.
- the reaction mixture is then gradually heated to 250 ° C. under 5 bar absolute pressure and with constant stirring.
- the water formed by esterification is continuously removed during the reaction.
- the esterification rate being estimated from the mass of distillate collected.
- the reactor pressure is reduced to atmospheric pressure and the temperature is brought to 260 ° C.
- the pressure is reduced to 0.7 mbar absolute in 1 h 30 according to a logarithmic ramp and the temperature brought to 280 ° C.
- the polymer is poured into a water tank and then cut into cylindrical granules.
- the granules have a diameter of 1.7 ⁇ 0.2 mm, a length of 3.3 ⁇ 0.5 mm.
- Polyester 2 29.0 kg of terephthalic acid, 3.7 kg of isosorbide and 11.4 kg of ethylene glycol are introduced into a 100 L reactor. Then 1 1, 6 g of germanium oxide, 2.7 g of cobalt acetate, 17.7 g of Hostanox PEPQ, 17.7 g of Iragnox 1010 and 6.2 g of aqueous solution (20% by weight) of tetra-ethyl ammonium hydroxide are also added to the paste.
- the reaction mixture is then gradually heated to 250 ° C. under 3 bar absolute pressure and with constant stirring.
- the water formed by esterification is continuously removed during the reaction. The esterification rate being estimated from the mass of distillate collected.
- the reactor pressure is reduced to atmospheric pressure in 15 min. Then, the pressure is reduced to 0.7 mbar absolute in 30 min according to a logarithmic ramp and the temperature brought to 265 ° C. After 1 10 minutes, the polymer is poured into a water tank and then cut into the form of cylindrical granules.
- the granules have a diameter of 1.7 ⁇ 0.1 mm, a length of 3.1 ⁇ 0.2 mm.
- the tests were carried out in a rotary laboratory evaporator.
- a 500 ml fluted flask is immersed in an oil bath with an inclination of 45 ° so that the part of the flask containing the granules is completely submerged when the oil is at test temperature.
- the flask is stirred at 40 rpm with nitrogen blanketing of 0.5 to 2 L / min.
- the polymer granules and any additives are placed in the flask and quickly heated to their glass transition temperature.
- the bath is then heated at 1 ⁇ / min to the crystallization temperature. After crystallization, the flask is taken out of the bath to be cooled to room temperature. The adhesion to the wall and the agglomeration of the granules were observed throughout the tests.
- Example 1 75g of Polyester 1 granules are placed in the flask with different additives: fumed silica (aggregates from 0.2 to 0.3 ⁇ m), Aerosil R972, talc, sodium benzoate or sodium stearate.
- fumed silica aggregates from 0.2 to 0.3 ⁇ m
- Aerosil R972 Aerosil R972
- talc talc
- sodium benzoate or sodium stearate sodium benzoate
- the efficacy of the treatment is presented in Table 1 for each trial.
- Example 1 The conclusions of Example 1 are valid for PE 10 T.
- the PTA at 2000 ppm also makes it possible to eliminate the agglomeration problem.
- Example 3 The tests of Example 1 were repeated on a larger scale for the additives which function. 500 g of Polymer 1 granules (PI 25 Tg) were placed in a 2 L flask. The addition of talc and sodium benzoate eliminates the agglomeration problem. However the addition of 250 ppm of fumed silica (0.2-0.3 mih) does not work as well as in Example 1. About 50% of the granules remain in motion throughout the crystallization, but the other half is bonded and agglomerated on cooling. The same observations as in Table 1 were made for a test without additive.
- Example 4 Example 4:
- Example 3 The materials obtained at the end of the tests of Example 3 were used to validate the value of the additives in PCS.
- the granules are brought to 227 ⁇ (material temperature) for several hours with a nitrogen flow of 2L / min and stirring of 20 rpm.
- the kinetics of rise of the molar masses are presented in Figure 1.
- Figure 1 shows that the addition of anti-caking agents has little impact on the kinetics of PCS.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1859047A FR3086662B1 (fr) | 2018-10-01 | 2018-10-01 | Procede de cristallisation d'un polyester comprenant au moins un motif 1,4 : 3,6-dianhydrohexitol. |
| PCT/FR2019/052307 WO2020070426A1 (fr) | 2018-10-01 | 2019-09-30 | Procédé de cristallisation d'un polyester comprenant au moins un motif 1,4:3,6-dianhydrohexitol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3861052A1 true EP3861052A1 (fr) | 2021-08-11 |
Family
ID=65494314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19795286.4A Withdrawn EP3861052A1 (fr) | 2018-10-01 | 2019-09-30 | Procédé de cristallisation d'un polyester comprenant au moins un motif 1,4:3,6-dianhydrohexitol |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20220002479A1 (fr) |
| EP (1) | EP3861052A1 (fr) |
| KR (1) | KR20210068477A (fr) |
| CN (1) | CN112912418A (fr) |
| FR (1) | FR3086662B1 (fr) |
| WO (1) | WO2020070426A1 (fr) |
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| KR20220056159A (ko) | 2022-04-04 | 2022-05-04 | 김용원 | 물탱크 내의 스팀집 슈퍼히터에 전력공급한 스팀공급으로 스팀터빈을 구동하는 것과 슈퍼히터로 스팀을 공급하는 스팀청소기에 발전기들을 설치하는 것과 공기터빈의 흡입구들의 공기필터들 설치와 펠티에소자를 이용한 냉온 공기배출과 얼음제조기 시스템 |
| KR20220080053A (ko) | 2022-05-27 | 2022-06-14 | 김용원 | 다중 에어 레이어 튜브보트 |
| CN115322350B (zh) * | 2022-08-26 | 2024-04-30 | 苏州瀚海新材料有限公司 | 一种可降解生物基聚酯及其制备方法和应用 |
| KR20230004349A (ko) | 2022-12-05 | 2023-01-06 | 김용원 | 선풍기에 설치하는 발전기 |
| KR20230047973A (ko) | 2023-03-21 | 2023-04-10 | 김용원 | 자전거에 발전기를 설치 |
| KR20230175138A (ko) | 2023-12-06 | 2023-12-29 | 김용원 | 자전거에 발전기를 설치(Install the generator ona bike)10-2023-0036696하고 자전거 뒷바퀴의 양측 보조 바퀴가 있는 뒤 짐받이에 찜기를 싣고 폭설, 빙판 녹이는 장치 |
| KR20250009398A (ko) | 2024-12-30 | 2025-01-17 | 김용원 | 자전거 앞바퀴 부분 제설재 또는 모래살포기 : 자전거에 발전기를 설치(10-2023-0036696), 자전거 뒷바퀴의 양측 보조 바퀴가 있는 뒤 짐받이에 찜기를 싣고 폭설, 빙판 녹이는 장치(10-2023-0175944)와 같이 사용 |
| KR20250044828A (ko) | 2025-03-14 | 2025-04-01 | 김용원 | 양축 모터 구동으로 양축 모터 양축의 2공기 컴프레셔로 4바퀴 터빈을 구동시키는 4바퀴 터빈과 4바퀴 외주 면에 설치하는 발전기가 있는 구조도르래 |
| KR20250047667A (ko) | 2025-03-17 | 2025-04-04 | 김용원 | 9 필터가 있는 3 양축 모터 6 발전기 |
| KR20250070006A (ko) | 2025-04-23 | 2025-05-20 | 김용원 | 수륙양용 전동보드 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020070445A1 (fr) * | 2018-10-02 | 2020-04-09 | Roquette Freres | Procédé de préparation d'un polyester de type poly(1,4:3,6-dianhydrohexitol-cocyclohexylène téréphtalate) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3544523A (en) * | 1969-06-13 | 1970-12-01 | Mobil Oil Corp | Polycondensation of solid polyesters with anticaking agents |
| US4008206A (en) * | 1974-10-02 | 1977-02-15 | Standard Oil Company (Indiana) | Solid state polymerization |
| US5959066A (en) * | 1998-04-23 | 1999-09-28 | Hna Holdings, Inc. | Polyesters including isosorbide as a comonomer and methods for making same |
| US6656577B1 (en) * | 2002-06-14 | 2003-12-02 | E. I. Du Pont De Nemours & Company | Process for making poly(ethylene-co-isosorbide) terephthalate polymer |
| BRPI0419127A (pt) * | 2004-11-22 | 2007-12-11 | Invista Tech Sarl | método de cristalização e polimerização em estado sólido de pellets de polìmero, pellets revestidos, recipiente moldado por sopro por estiramento de injeção fabricado com os pellets revestidos, forma prévia para fabricação de recipiente moldado por sopro por estiramento de injeção e pellets de polìmero revestido de sìlica defumada |
| JP2012046686A (ja) * | 2010-08-30 | 2012-03-08 | Toyobo Co Ltd | イソソルビド共重合ポリエステル樹脂及びその製造方法 |
| WO2014188449A1 (fr) * | 2013-05-21 | 2014-11-27 | Ester Industries Limited | Polyéthylène téréphtalate résistant à la chaleur et son procédé de préparation |
| FR3036400B1 (fr) | 2015-05-22 | 2019-04-26 | Roquette Freres | Polyester de haute viscosite aux proprietes choc ameliorees |
| WO2017043974A1 (fr) * | 2015-09-11 | 2017-03-16 | Furanix Technologies B.V. | Procédé d'amélioration du poids moléculaire d'un polyester par polymérisation à l'état solide |
| FR3054551B1 (fr) * | 2016-07-29 | 2019-08-02 | Roquette Freres | Composition polymere comprenant un polyester thermoplastique |
-
2018
- 2018-10-01 FR FR1859047A patent/FR3086662B1/fr not_active Expired - Fee Related
-
2019
- 2019-09-30 US US17/281,445 patent/US20220002479A1/en not_active Abandoned
- 2019-09-30 KR KR1020217012021A patent/KR20210068477A/ko not_active Ceased
- 2019-09-30 EP EP19795286.4A patent/EP3861052A1/fr not_active Withdrawn
- 2019-09-30 WO PCT/FR2019/052307 patent/WO2020070426A1/fr not_active Ceased
- 2019-09-30 CN CN201980069825.XA patent/CN112912418A/zh active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020070445A1 (fr) * | 2018-10-02 | 2020-04-09 | Roquette Freres | Procédé de préparation d'un polyester de type poly(1,4:3,6-dianhydrohexitol-cocyclohexylène téréphtalate) |
Also Published As
| Publication number | Publication date |
|---|---|
| US20220002479A1 (en) | 2022-01-06 |
| KR20210068477A (ko) | 2021-06-09 |
| WO2020070426A1 (fr) | 2020-04-09 |
| CN112912418A (zh) | 2021-06-04 |
| FR3086662B1 (fr) | 2021-11-05 |
| FR3086662A1 (fr) | 2020-04-03 |
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