WO2014021543A1 - 방향족 디카르복실산 화합물의 분할 투입에 의한 생분해성 폴리에스테르 공중합체의 제조방법 - Google Patents
방향족 디카르복실산 화합물의 분할 투입에 의한 생분해성 폴리에스테르 공중합체의 제조방법 Download PDFInfo
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- WO2014021543A1 WO2014021543A1 PCT/KR2013/004226 KR2013004226W WO2014021543A1 WO 2014021543 A1 WO2014021543 A1 WO 2014021543A1 KR 2013004226 W KR2013004226 W KR 2013004226W WO 2014021543 A1 WO2014021543 A1 WO 2014021543A1
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- dicarboxylic acid
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- 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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- 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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
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- 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
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- 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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- the present invention relates to a method for producing a biodegradable polyester copolymer by divided addition of an aromatic dicarboxylic acid compound. More specifically, in order to improve the solubility and reactivity of the aromatic dicarboxylic acid compound as a reactant in the preparation of the biodegradable polyester copolymer, the aliphatic dihydroxy compound and the aliphatic dicarboxylic acid compound are first esterified, and then The present invention relates to a method for producing a biodegradable polyester copolymer obtained by dividing and adding an aromatic dicarboxylic acid compound to the solubility of the aromatic dicarboxylic acid compound to reduce side reactions.
- Biodegradable resin is a synthetic resin developed as a new material that does not cause environmental pollution by being decomposed into water and carbon dioxide or water by microorganisms in nature such as bacteria, algae and mold.
- Biodegradable resins commonly used with cellulose-based polymers and starches are aliphatic polyesters such as polylactic acid (PLA), polybutylene succinate (PBS), polyethylene succinate (PES), and polycaprolactone (PCL). It is a resin produced from.
- PLA polylactic acid
- PBS polybutylene succinate
- PES polyethylene succinate
- PCL polycaprolactone
- aliphatic polyester resins are excellent in biodegradability but have a disadvantage in that they lack mechanical properties. Therefore, a method of preparing a biodegradable resin in the form of an aliphatic-aromatic copolymer by synthesizing an aromatic monomer in the preparation of the biodegradable resin to complement the mechanical strength of the aliphatic polyester resin has been developed.
- dimethyl terephthalate is commonly used as an aromatic monomer.
- Dimethyl terephthalate has the advantage that the reaction can be easily induced even at a reaction temperature of 200 °C or less.
- the cost burden of the manufacturing process is large because of the high price.
- terephthalic acid has no melting point and has a property of sublimation at high temperature.
- terephthalic acid is dissolved in 1,4-butanediol (1,4-butanediol, BDO), which is used as a representative aliphatic monomer in the biodegradable polyester resin manufacturing process, only at a temperature of 220 ° C. or higher under normal pressure, and thus terephthalic acid and 1,4-butanediol. In order to induce a uniform reaction with, a reaction temperature of 220 ° C. or higher is required.
- a representative example of a biodegradable resin in the form of an aliphatic-aromatic copolymer using terephthalic acid as an aromatic monomer and 1,4-butanediol and adipic acid as an aliphatic monomer is poly (butylene adipate-co-terephthalate) (PBAT).
- the present inventors esterify the aliphatic dihydroxy compound and the aliphatic dicarboxylic acid compound first in the process of preparing a biodegradable polyester copolymer, and then, in the case of dividing the aromatic dicarboxylic acid compound therein, aromatic
- the present invention has been completed and found that it is possible to reduce side reactions without delaying the esterification reaction by increasing the solubility of the dicarboxylic acid compound.
- the problem to be solved by the present invention is to provide a method for producing a biodegradable polyester copolymer that can effectively increase the solubility of the aromatic dicarboxylic acid compound to reduce side reactions.
- the sequential split input is 2 to 6 split feeds
- the aromatic dicarboxylic acid compound is preferably added at the same ratio each time in the sequential split feeds.
- the aliphatic dihydroxy compound is 1,2-ethanediol, 1,3-propanediol, 1,2-butanediol, 1,6-hexanediol, 1,4-hexanediol, 1,4-butanediol, Neopentyl glycol, isosorbide (isosorbide) and mixtures thereof may be selected from the group consisting of 1,4-cyclohexanediol or 1,4-cyclohexanedimethylranol instead of the aliphatic dihydroxy compound Group dihydroxy compounds can be used.
- the aliphatic dicarboxylic acid compound is a compound represented by the following formula (1), anhydride or derivative thereof:
- n is from 2 to 12.
- the primary ester reaction proceeds first at a temperature in the range of 160 to 220 °C
- secondary ester reaction is preferably carried out sequentially at a temperature in the range of 210 to 260 °C.
- the polycondensation reaction of the aliphatic-aromatic polyester copolymer obtained by the primary and secondary ester reaction in the method of producing a biodegradable polyester copolymer according to the present invention is a vacuum degree of 220 to 260 °C, less than 2torr It is preferable to proceed in 40 to 300 minutes.
- the polycondensation reaction may further include the step of reacting by adding a chain extender.
- the biodegradable polyester copolymer may further comprise the step of reacting by adding a branching agent.
- the present invention in which a biodegradable polyester copolymer is prepared by sequentially dividing an aromatic dicarboxylic acid compound stepwise into an oligomer formed by first reacting an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid compound, has the following effects.
- the aromatic dicarboxylic acid to be separately added to the oligomer formed by first reacting the aliphatic dihydroxy compound and the aliphatic dicarboxylic acid compound effectively increases the dissolution, thereby causing side reactions without delaying the esterification reaction. Can be reduced.
- the unreacted aromatic dicarboxylic acid compound or partially reacted aromatic dicarboxylic acid compound which affects the acid value of the polyester copolymer can be efficiently reduced during the reaction, thereby lowering the acid value of the product, and It can improve the stability against the change over time, and can improve the hydrolysis resistance.
- an oligomer is formed by esterifying an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid compound in the process of preparing a biodegradable polyester copolymer, and then dividing the aromatic dicarboxylic acid compound therein to add an aromatic dica
- the present invention relates to a method for producing a biodegradable polyester copolymer in which a carboxylic acid compound is easily dissolved to reduce side reactions without delaying an esterification reaction.
- the copolymer is an aliphatic-aromatic polyester obtained by reaction of an aliphatic dihydroxy compound with an aliphatic dicarboxylic acid compound and an aromatic dicarboxylic acid compound.
- terephthalic acid terephthalic acid (PTA)
- PTA terephthalic acid
- DMT dimethyl terephthalate
- a uniform esterification reaction with an aliphatic dihydroxy compound can be induced only at a temperature of 210 ° C. or higher.
- tetrahydrofuran THF
- terephthalic acid is used as the aromatic monomer
- the aliphatic dihydroxy compound should be used in an excessive amount of 1.7 to 2.5 equivalents relative to the total amount of dicarboxylic acid.
- the aliphatic dihydroxy compound in order to prevent the conversion of the aliphatic dihydroxy compound and to improve the solubility of the aromatic dicarboxylic acid compound, the aliphatic dihydroxy compound is first reacted with an aliphatic dicarboxylic acid compound which can be reacted at a relatively low temperature to fix it. Use the method to make it.
- an aliphatic dihydroxy compound is first reacted with an aliphatic dicarboxylic acid compound to fix the aromatic dicarboxylic acid compound in a stepwise manner without introducing the aromatic dicarboxylic acid compound at once, thereby introducing aromatic dicarboxes.
- the solubility of the acidic compound is effectively increased to reduce side reactions without delaying the esterification reaction.
- the present invention comprises the steps of primary ester reaction of an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid compound to form an oligomer; Secondary ester reaction of the formed oligomer with an aromatic dicarboxylic acid compound; And a polycondensation reaction in vacuo, wherein the aromatic dicarboxylic acid compound is added in a sequential division during the secondary ester reaction step.
- any aliphatic dihydroxy compound used as a starting material in the preparation of aliphatic-aromatic polyester biodegradable resins can be used without limitation.
- aliphatic dihydroxy compounds which are likely to be consumed in high temperature acidic reactions they can be advantageously used, and in particular, diols having 2 to 6 carbon atoms, especially 1,2-ethanediol, 1,3-propane Diols, 1,2-butanediol, 1,6-hexanediol, 1,4-hexanediol, 1,4-butanediol, neopentyl glycol and isosorbides or mixtures thereof are preferred, particularly preferably 1,4- It is butanediol, and an alicyclic dihydroxy compound can also be used, for example, 1, 4- cyclohexanediol or 1, 4- cyclohexane dimethylranol can be used
- the aliphatic dicarboxylic acid compound that reacts with the aliphatic dihydroxy compound may be formed in an oligomer by esterification with an aliphatic dihydroxy compound by a low temperature reaction, thereby minimizing the amount of exhaustion under high temperature and acidic reaction conditions.
- Any aliphatic dicarboxylic acid compound can be used without limitation.
- a compound represented by the following Formula 1, anhydride or derivative thereof may be used as the aliphatic dicarboxylic acid compound.
- n is from 2 to 12.
- n is used in 2 to 8.
- aliphatic dicarboxylic acid compounds include succinic acid, glutaric acid, adipic acid or sebacic acid, and anhydrides and derivatives thereof. .
- the two carboxylic acids included in the aliphatic dicarboxylic acid compound undergo esterification with the hydroxyl group included in the aliphatic dihydroxy compound.
- the aliphatic dicarboxylic acid compound may be fixed by combining an aliphatic dihydroxy compound with respect to the aliphatic dihydroxy compound, by adjusting the equivalent amount with respect to the aliphatic dihydroxy compound, and also the aliphatic dihydroxy compound. This can be fixed in combination.
- 1,4-butanediol used as an example of an aliphatic dihydroxy compound in the present invention reacts with adipic acid to form an oligomer of AA-BDO form or an oligomer of BDO-AA-BDO form.
- 1,4-butanediol may form an oligomer with adipic acid and then minimize the amount of tetrahydrofuran converted to aromatic dicarboxylic acid even if reacted at an additional acidic condition at high temperature.
- the primary ester reaction of the aliphatic dihydroxy compound with the aliphatic dicarboxylic acid compound is based on the amount of outflow from which the water flowing out of the esterification reaction is theoretically calculated (ie, the total amount of the carboxylic acid contained in the aliphatic dicarboxylic acid compound). The amount of water corresponding to the number of moles) is terminated.
- the primary ester reaction is preferably carried out in a temperature range of 160 to 220 °C, more preferably a temperature range of 170 to 200 °C, the secondary ester reaction is higher than the primary ester reaction of 210 to 260 °C It is preferred to proceed in the temperature range, more preferably in the range of 220 to 250 °C.
- the temperature of the secondary reaction is preferably in the range of 220 to 260 ° C. .
- the aromatic dicarboxylic acid compound used in the secondary ester reaction is phthalic acid (PA), phthalic anhydride, isophthalic acid (IPA), terephthalic acid (PTA) or naphthalene
- PA phthalic acid
- IPA isophthalic acid
- PTA terephthalic acid
- Any aromatic dicarboxylic acid compound in which an esterification reaction with an aliphatic dihydroxy compound is induced at a high temperature can be advantageously used.
- the solubility of the aromatic dicarboxylic acid compound is low. Due to the complete dissolution, the esterification reaction and the side reactions compete, thereby delaying the esterification reaction and accelerating the side reactions.
- the aromatic dicarboxylic acid compound is not added to the oligomer of the aliphatic dihydroxy compound and the aliphatic dicarboxylic acid compound at once, but is divided into several times at a predetermined ratio.
- terephthalic acid PTA
- terephthalic acid is subjected to terephthalic acid by weight with respect to an oligomer formed by primary ester reaction of 1,4-butanediol (BDO) with adipic acid (AA).
- the reaction is carried out at a ratio of 5: 5 to 8: 2, preferably at a ratio of 7: 3, and then additionally added 1 to 5 times at a predetermined rate, and a total of 2 to 6 times is added, preferably 4 times in total. It's a split commitment.
- terephthalic acid may be added at the same rate every time, or may be added in an increasing or decreasing manner, preferably at the same rate.
- the addition interval is added at intervals of 15 to 30 minutes, and preferably, the injection is performed at a time point at which the injected terephthalic acid (PTA) is completely dissolved.
- PTA injected terephthalic acid
- the amount of the aliphatic dihydroxy compound may be used within the range required in the intended esterification reaction, and may be added in an amount of 1.0 mole or more with respect to 1 mole of the total moles of the fatty acid dicarboxylic acid compound and the aromatic dicarboxylic acid compound. It may be, it is preferably added to more than 1.3 moles.
- the amount of aliphatic dihydroxy compound can be reduced by dividing the aromatic dicarboxylic acid compound and dividing the side reaction of the aliphatic dihydroxy compound.
- the fatty acid dicarboxylic acid compound and the aromatic dicarboxylic acid compound are preferably used in a molar ratio of 0.55 to 0.5: 0.45 to 0.5 in terms of biodegradability, and may be used, for example, in a molar ratio of 0.52: 0.48. If biodegradability is not required, the aliphatic dicarboxylic acid and the compound and the aromatic dicarboxylic acid compound can be reacted in more various molar ratios.
- the first and second reactions can be carried out continuously or batch at atmospheric pressure.
- a biodegradable resin having desired properties can be obtained by increasing the molecular weight through a polycondensation reaction or a chain extension reaction.
- the aliphatic-aromatic polyester copolymer obtained from the primary and secondary reactions is subjected to polycondensation reaction for 40 to 300 minutes in a vacuum state of less than 2 torr and a temperature in the range of 220 to 260 ° C.
- Such polycondensation reactions are intended to cause reactions between oligomer levels generated from the first and second reactions or between polymers that have not yet reached the desired molecular weight. Since the polycondensation reaction must proceed through the functional group, it proceeds in the reaction conditions of vacuum and high temperature. The reaction time of the polycondensation reaction may be adjusted according to the amount of the catalyst to be described later and the input method.
- a chain extension reaction may be performed by adding a chain extender.
- chain extension reactions include, for example, 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, diphenylmethane diisocyanate, xylylene diisocyanate, 1,5-naphthylene diisocyanate,
- One or more types selected from the group consisting of hexamethylene diisocyanate and triphenylmethane triisocyanate, preferably hexamethylene diisocyanate may be used at 0.05 to 2 parts by weight based on the copolymer.
- a branching structure (branching) is simultaneously added with a compound (branching agent) having an optional trivalent or higher functional group for branching reaction. structure) can be prepared.
- branching agent one or more polyfunctional compounds selected from the group consisting of trifunctional or higher polyhydric alcohols, trifunctional or higher polyhydric carboxylic acids or anhydrides thereof, and trifunctional or higher functional hydroxy carboxylic acids may be used.
- a preferred amount of branching agent may be used in an amount of 0.1 to 3 g per mole of aliphatic and aromatic dicarboxylic acid compound.
- the use of the branching agent or the amount thereof is a factor that greatly affects the physical properties of the biodegradable resin represented by the melt flow index. Therefore, in the present invention, as a means for controlling the physical properties of the resin, the use of the branching agent and the amount of use of the branching agent in the respective reaction steps of the resin production is determined.
- a catalyst or a heat stabilizer may be used to improve the efficiency of the reaction by promoting the reactions and inducing a stable reaction.
- the catalysts include calcium acetate, manganese acetate, magnesium acetate, zinc acetate, monobutyl tin oxide, dibutyl tin oxide, monobutyl hydroxy tin oxide, octyl tin, dibutyl tin dichloride, tetraphenyl tin, tetrabutyl tin, Tetrabutyl titanate, tetramethyl titanate, tetraisopropyl titanate and tetra (2-ethylhexyl) titanate can be used, preferably tetrabutyl titanate (Ti (OC4H9) 4) or Vertec® VEXP 0641 (titanium). organic catalysts such as type catalyst and Johnson Matthey). The preferred amount of catalyst is to use 0.1 to 1.5 g based on 1 mole of aliphatic and aromatic dicarboxylic acid compounds.
- the thermal stabilizer may further include a phosphorus compound such as triphenyl phosphate or trimethyl phosphate to react.
- the phosphorus compound acts to keep the reaction stable by preventing decomposition by heat when the molecular weight increase reaction proceeds at a high temperature.
- terephthalic acid 0.12 mol of terephthalic acid (PTA) was firstly added to the reactor, and the temperature was elevated to proceed with the secondary reaction at 230 ° C. Subsequently, after 15 minutes, 0.12 mol of terephthalic acid was further added in a second step, and the reaction was performed at 240 ° C. After 15 minutes, 0.12 mol of terephthalic acid was further added in 3 times, and the reaction was performed at 240 ° C. After 15 minutes, an additional fourth step of 0.12 mol of terephthalic acid was added thereto, followed by reaction at 240 ° C. The reaction was terminated when the top temperature of the reactor condenser dropped below 90 ° C. Secondary ester reaction time was 92 minutes.
- the intermediate product obtained from the said 1st and 2nd reaction was polycondensation reaction at 240 degreeC and the vacuum degree below 1 torr for 135 minutes, and biodegradable resin was obtained.
- a biodegradable resin was obtained in the same manner as in Example 1 except that 2.6 mol of 1,4-butadiol was added and the amount of tetrabutyl titanate and triphenyl phosphate was doubled.
- the polymer prepared in Example 3 was put in a high temperature vacuum dryer and vacuum dried at 20 Torr or less and 80 ° C. for at least 4 hours.
- 40 mg of hexamethylene diisocyanate was added as a chain extender, and an antioxidant (Tetrakis [methylene (3,5-di-t-butyl-4-hydroxyhydrocinnamate)] methane, AO-60 was added.
- 40 mg and 40 mg of wax ethylene bis-stearamide, EBS
- EBS ethylene bis-stearamide
- reaction product obtained from the said 1st and 2nd reaction was polycondensation reaction at 240 degreeC and the vacuum degree below 1 torr for 135 minutes, and biodegradable resin was obtained.
- THF conversion rate measurement THF contained in the effluent was measured quantitatively using gas chromatography (GC).
- Acid value measurement Calculate the acid value by dissolving 0.5g of resin in 20ml of chloroform and titrating the solution with ethanol added by autotitrator.
- the biodegradable polyester copolymer according to the present invention has a relatively low THF conversion of 1,4-butanediol, and thus, a secondary ester reaction time may be relatively fast.
- unreacted terephthalic acid or partially reacted terephthalic acid is reduced, and has a low acid value of 2.0 mg KOH / gr or less compared to the comparative examples, thereby showing excellent hydrolysis resistance and molecular weight of 150,000 or more.
- biodegradable polyester copolymer of the present invention may have a low acid value despite using the same amount of 1,4-butanediol as the comparative example, an excessive use of 1,4-butanediol is not required and productivity It can be seen that it is excellent in terms of.
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Abstract
Description
Claims (11)
- 지방족 디히드록시 화합물과 지방족 디카르복실산을 1차 에스테르 반응시켜 올리고머를 형성하는 단계;상기 형성된 올리고머에 대하여 방향족 디카르복실산 화합물을 2차 에스테르 반응시키는 단계; 및진공하에서 중축합 반응시키는 단계를 포함하고,여기서 상기 방향족 디카르복실산 화합물은 순차적 분할 투입되고, 매회 투입시마다 올리고머에 대해 방향족 디카르복실산 화합물이 5:5 내지 8:2의 중량비율로 투입되는 것인 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 순차적 분할 투입은 2회 내지 6회 분할 투입인 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 순차적 분할 투입에서 매회 투입시마다 방향족 디카르복실산 화합물이 동일 비율로 투입되는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 지방족 디히드록시 화합물은 1,2-에탄디올, 1,3-프로판디올, 1,2-부탄디올, 1,6-헥산디올, 1,4-헥산디올, 1,4-부탄디올, 네오펜틸 글리콜, 아이소솔바이드 및 이들의 혼합물로 이루어진 군에서 선택되는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 지방족 디히드록시 화합물 대신 1,4-시클로헥산디올 또는 1,4-시클로헥산디메틸란올에서 선택되는 지환족 디히드록시 화합물이 사용되는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 지방족 디카르복실산 화합물은 하기 화학식 1로 표현되는 화합물, 그 무수물 또는 유도체인 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법:[화학식 1]HOOC-(CH2)n-COOH상기 식에서 n은 2 내지 12이다.
- 제1항에 있어서,상기 방향족 디카르복실산 화합물은 프탈산(phthalic acid, PA), 무수 프탈산(phthalic anhydride), 아이소프탈산(isophthalic acid, IPA), 테레프탈산(terephthalic acid, PTA) 및 나프탈렌-2,6-디카르복실산(naphthalene-2,6-dicarboxylic acid)으로 이루어진 그룹에서 선택되는 1종 이상인 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 1차 반응을 160~220℃ 범위의 온도에서 먼저 진행하고, 2차 반응을 210~260℃ 범위의 온도에서 순차적으로 진행하는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 중축합 반응은 220~260℃, 2torr 미만의 진공도에서 40~300분간 진행시키는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제9항에 있어서,상기 중축합 반응 후 사슬 연장제를 투입하여 반응시키는 단계를 추가로 포함하는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
- 제1항에 있어서,상기 생분해성 폴리에스테르 공중합체의 제조과정 동안 분지제를 투입하여 반응시키는 단계를 추가로 포함하는 것을 특징으로 하는 생분해성 폴리에스테르 공중합체의 제조방법.
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JP2015525317A JP2015523453A (ja) | 2012-07-30 | 2013-05-13 | 芳香族ジカルボン酸化合物の分割投入による生分解性ポリエステル共重合体の製造方法 |
AU2013297329A AU2013297329B2 (en) | 2012-07-30 | 2013-05-13 | Method for manufacturing biodegradable copolymer by split-injecting aromatic dicarboxylic acid compound |
CN201380038803.XA CN104487482B (zh) | 2012-07-30 | 2013-05-13 | 分批添加芳香族二羧酸化合物的生物可降解聚酯共聚物的制造方法 |
US14/402,516 US9187595B2 (en) | 2012-07-30 | 2013-05-13 | Method for manufacturing biodegradable copolymer by split-injecting aromatic dicarboxylic acid compound |
EP13825730.8A EP2881415A4 (en) | 2012-07-30 | 2013-05-13 | PROCESS FOR PREPARING A BIODEGRADABLE COPOLYMER BY SPLIT INJECTION OF AN AROMATIC DICARBOXYLIC ACID COMPOUND |
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CN (1) | CN104487482B (ko) |
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WO2023039923A1 (zh) * | 2021-09-14 | 2023-03-23 | 珠海万通化工有限公司 | 一种半芳香族聚酯及其制备方法和应用 |
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KR20160023973A (ko) * | 2014-08-21 | 2016-03-04 | 삼성정밀화학 주식회사 | 투명 생분해성 고분자 |
CN109563245B (zh) * | 2016-05-30 | 2021-02-26 | 株式会社三养社 | 包含源自生物质的单体的聚酯树脂及其制备方法、以及包含该树脂的粉末涂料组合物 |
KR102125452B1 (ko) * | 2016-08-29 | 2020-06-22 | 주식회사 엘지화학 | 폴리부틸렌테레프탈레이트의 제조방법 |
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CN113185675A (zh) * | 2016-09-09 | 2021-07-30 | 珠海万通化工有限公司 | 一种聚对苯二甲酸酯-共-癸二酸酯树脂及其制备方法 |
CN111320745A (zh) * | 2016-09-09 | 2020-06-23 | 珠海万通化工有限公司 | 一种pbat树脂及其制备方法 |
ES2897982T3 (es) | 2017-07-06 | 2022-03-03 | Technip Zimmer Gmbh | Proceso y aparato para la preparación de poliésteres biodegradables |
BR112020000064A2 (pt) * | 2017-07-06 | 2020-07-14 | Technip Zimmer Gmbh | processo para preparar poliésteres pelo uso de um aditivo |
CN111072935A (zh) * | 2019-12-18 | 2020-04-28 | 浙江恒澜科技有限公司 | 一种耐热可生物降解聚酯及其制备方法 |
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EP2881415A4 (en) | 2016-03-09 |
TW201410734A (zh) | 2014-03-16 |
CN104487482B (zh) | 2017-04-12 |
KR20140018468A (ko) | 2014-02-13 |
EP2881415A1 (en) | 2015-06-10 |
JP2015523453A (ja) | 2015-08-13 |
CN104487482A (zh) | 2015-04-01 |
AU2013297329A1 (en) | 2014-11-20 |
US9187595B2 (en) | 2015-11-17 |
TWI606078B (zh) | 2017-11-21 |
US20150152218A1 (en) | 2015-06-04 |
AU2013297329B2 (en) | 2016-07-14 |
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