WO2015030446A1 - 생분해성 폴리에스테르 수지의 제조 방법 - Google Patents
생분해성 폴리에스테르 수지의 제조 방법 Download PDFInfo
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- WO2015030446A1 WO2015030446A1 PCT/KR2014/007885 KR2014007885W WO2015030446A1 WO 2015030446 A1 WO2015030446 A1 WO 2015030446A1 KR 2014007885 W KR2014007885 W KR 2014007885W WO 2015030446 A1 WO2015030446 A1 WO 2015030446A1
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- polyester resin
- biodegradable polyester
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- reheat
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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
- C08G63/88—Post-polymerisation treatment
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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
- 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
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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
Definitions
- a method for producing a biodegradable polyester resin is disclosed. More specifically, a method of producing a biodegradable polyester resin having improved solidification rate is disclosed by including rapidly crystallizing a biodegradable polyester resin having a reheat crystallization peak temperature (T ch ).
- Plastics are usefully used in real life because of their high functionality and durability.
- conventional plastics have a low decomposition rate due to microorganisms when they are landfilled, release harmful gases during incineration, and cause environmental pollution.
- biodegradable plastics have been developed.
- Biodegradable polyester resin refers to a polymer that can be decomposed into water and carbon dioxide or water and methane by microorganisms in nature such as bacteria, algae and mold.
- Such biodegradable polyester resins have been proposed as a powerful solution to prevent environmental pollution due to landfill or incineration.
- biodegradable polyester resins are generally synthesized in a molten state, molding of the article requires a process of solidifying and then pelletizing the synthesized biodegradable polyester resin. Therefore, in the case of biodegradable polyesters such as polylactic acid (PLA), polybutylene succinate (PBS), and the like, pelletized after cooling the synthesized molten resin using a coagulation bath or a cooling device of 10 ° C. or less. do.
- PHA polylactic acid
- PBS polybutylene succinate
- the biodegradable polyester resin utilizes the characteristics of a polymer that is crystallized at a cooling crystallization peak temperature (T cc ), wherein T cc is a high temperature resin at a predetermined cooling rate in differential scanning calorimetry (DSC). The peak temperature of the crystallization peak that appears upon cooling.
- T cc cooling crystallization peak temperature
- biodegradable polyester resins such as polyethylene succinate (PES), polyethylene succinate-adipate (PESA), etc.
- PES polyethylene succinate
- PESA polyethylene succinate-adipate
- One embodiment of the present invention provides a method for producing a biodegradable polyester resin comprising the step of rapidly crystallizing a biodegradable polyester resin having a reheat crystallization peak temperature (T ch ).
- the T ch1, T ch, ch2, and T are, respectively, the (a) first stage, and after cooling at 200 °C to -50 °C the resin in a molten state prepared in step at a cooling rate of 10 °C / min in DSC
- the initial temperature, the peak temperature, and the final temperature of the crystallization peak appearing in the second step are T 1 is 220. and °C to 280 °C, wherein T 2 is T ch1 ⁇ T 2 ⁇ T ch2.
- the T 2 may be 15 ⁇ 80 °C.
- the t c may be 5 minutes or less.
- the biodegradable polyester resin may be polyethylene (poly ethylene succinate) (PES) or polyethylene succinate adipate (poly (ethylene succinate-co-adipate): PESA).
- the biodegradable polyester resin may be synthesized by using ethylene glycol in a ratio of 1 to 2 mole parts based on 1 mole part of succinic acid and adipic acid.
- the biodegradable polyester resin is polyethylene succinate adipate (PESA)
- the amount of succinic acid and the amount of adipic acid used are 80 to 99.9 moles, respectively, based on 100 moles of the total amount of succinic acid and the adipic acid. And 0.1 to 20 molar parts.
- a polymer crystallization agent comprising polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) or a combination thereof in step (a); Organic crystallizing agents including sodium stearate, ethylene bis-stearamide (EBS), or combinations thereof; And at least one crystallizer selected from the group consisting of TiO 2 , carbon black, clay, talc, mica or combinations thereof.
- the crystallization agent may be added in an amount of 0.1% by weight to 5% by weight based on the total weight of the biodegradable polyester resin.
- the step of rapidly crystallizing a biodegradable polyester resin having a reheat crystallization peak temperature (T ch ), thereby improving the solidification rate biodegradability Polyester resin can be obtained.
- T cc cooling crystallization peak temperature
- T ch reheat crystallization peak temperature
- polyester refers to esterification and condensation polymerization of one or more difunctional or more polyfunctional carboxylic acids with one or more difunctional or more polyfunctional hydroxyl compounds. Means a synthetic polymer.
- the term “crystallization temperature (T c )” is any temperature below the melting temperature (T m ) and above the glass transition temperature (T g ), in which the chains of the resin in the amorphous or molten state are at least partially aligned. It means the temperature forming the region.
- the crystallization temperature T c may be divided into a cooling crystallization peak temperature T cc and a reheating crystallization peak temperature T ch .
- the reheat crystallization peak temperature (T ch ) may simply be referred to as reheat crystallization temperature (T ch ).
- cooling crystallization peak temperature means a temperature at which the resin in the molten state generates the maximum heat while cooling, and the resin at room temperature (20 ° C) is reduced to 10 by DSC. Crystallization which occurs in the second step when performing the first step of preheating to 200 ° C. at a heating rate of ° C./min and the second step of cooling from 200 ° C. to ⁇ 50 ° C. at a cooling rate of 10 ° C./min. Peak temperature of the peak. T cc is the crystallization temperature in a general sense. The T cc is graphically shown in FIG. 1 along with the glass transition temperature (T g ) and melting temperature (T m ).
- heating crystallization peak temperature means a temperature when the exothermic heat of the low-temperature (-50 ° C) resin is heated to the maximum, and the melted resin in the DSC
- first step of cooling from 200 ° C to -50 ° C at a cooling rate of 10 ° C / min
- the second step of heating from -50 ° C to 200 ° C at a heating rate of 10 ° C / min
- the peak temperature of the crystallization peak appearing in the step can be obtained by preheating a resin at room temperature (20 ° C.) to 200 ° C. at a heating rate of 10 ° C./min in DSC.
- T ch is graphically shown in FIG. 2 along with the glass transition temperature (T g ) and melting temperature (T m ). 2, T ch1 and T ch2 represent the reheat crystallization start temperature and the reheat crystallization end temperature which are mentioned later, respectively.
- Method for producing a biodegradable polyester resin (a) biodegradable having a reheat crystallization start temperature (T ch1 ), reheat crystallization peak temperature (T ch ) and reheat crystallization end temperature (T ch2 ). Synthesizing a polyester resin;
- step (b) cooling the resin synthesized in step (a) to a temperature of T 2 at a temperature of T 1 and then crystallizing by holding at a temperature of T 2 for a time of t c .
- the T ch1 , T ch , and T ch2 are the first and subsequent steps of cooling the resin in the molten state synthesized in step (a) from 200 ° C. to ⁇ 50 ° C. at a cooling rate of 10 ° C./min in DSC, respectively.
- the second step of heating from ⁇ 50 ° C. to 200 ° C. at a heating rate of ° C./min, the initial temperature, peak temperature, and final temperature of the crystallization peak appearing in the second step.
- T ch1 , T ch , and T ch2 are intrinsic properties of the biodegradable polyester resin, which depend on the composition, molecular weight, and / or chemical structure of the biodegradable polyester resin.
- the cooling rate may be 10 ° C./min or more, for example, 10 ° C./min to 200 ° C./min.
- the T 1 is 220 ° C to 280 ° C.
- T 2 is T ch1 ⁇ T 2 ⁇ T ch2.
- the t c may be 5 minutes or less, for example, 1 minute or less. That is, the biodegradable polyester resin synthesized in step (a) is crystallized in a short time in the step (b). Accordingly, the solidification rate of the biodegradable polyester resin synthesized in the step (a) is improved.
- Synthesis step of the biodegradable polyester resin may include an esterification reaction of the dicarboxylic acid compound and the diol compound and subsequent condensation polymerization reaction.
- an esterification reaction an oligomer is produced, and in the condensation polymerization reaction, a polymer is produced from the oligomer.
- the dicarboxylic acid compound may include succinic acid, aliphatic dicarboxylic acid compounds such as adipic acid, ester derivatives thereof, acyl halide derivatives, anhydride derivatives, and the like.
- the diol compound may include ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, diethylene glycol, triethylene glycol, and the like.
- the biodegradable polyester resin may be polyethylene succinate (PES)
- the dicarboxylic acid compounds are succinic acid and adipic acid
- the biodegradable polyester resin may be polyethylene succinate- adipate (PESA).
- the dicarboxylic acid compound and the diol compound may be reacted to form an ester bond by the esterification reaction, and the biodegradable polyester resin may be added to 1 mole part of the total of succinic acid and adipic acid in the esterification reaction. It may be synthesized using ethylene glycol in the ratio of 1 to 2 mole parts.
- the amount of the succinic acid and the amount of the adipic acid used in the esterification reaction is based on 100 mol parts of the total amount of the succinic acid and the adipic acid. 80 to 99.9 moles and 0.1 to 20 moles, respectively.
- the polyethylene succinate adipate may have T ch .
- the end point of the esterification reaction can be determined by measuring the amount of water produced in this reaction. For example, when 0.95 mol and 0.05 mol of succinic acid and adipic acid are used as the dicarboxylic acid compound, and 1.3 mol of ethylene glycol is used as the diol compound, all amounts of succinic acid and adipic acid used are ethylene. Assuming that it reacts with glycol, the esterification reaction can be terminated if at least 90% of the 2 mol of water to be by-products, ie, at least 1.8 mol, are by-produced.
- the esterification reaction may be carried out at a temperature and atmospheric pressure of 160 ⁇ 200 °C.
- "normal pressure” means a pressure in the range of 760 ⁇ 10 torr.
- the esterification reaction may be performed in the presence of a catalyst, a heat stabilizer, a branching agent and / or a color regulator.
- the catalyst is magnesium acetate, stannous acetate, tetra-n-butyl titanate (TBT), lead acetate, sodium acetate, potassium acetate, antimony trioxide, N, N-dimethylaminopyridine, N-methylimidazole or their May be a combination.
- the catalyst is usually added simultaneously with the monomer when the monomer is added.
- the amount of the catalyst used may be, for example, 0.00001 to 0.2 mole parts with respect to 1 mole part of the dicarboxylic acid compound used.
- the heat stabilizer may be an organic or inorganic phosphorus compound.
- the organic or inorganic phosphorus compound may be, for example, phosphoric acid and its organic esters, phosphorous acid and its organic esters.
- the thermal stabilizer is a commercially available material and may be phosphoric acid, alkyl or aryl phosphates.
- the heat stabilizer may be triphenyl phosphate (TPP).
- TPP triphenyl phosphate
- the amount of the thermal stabilizer used in the case of using the catalyst and the thermal stabilizer together may be, for example, 0.00001 to 0.2 mol part with respect to 1 mol part of the dicarboxylic acid compound.
- the branching agent is used for the purpose of controlling the biodegradability and physical properties of the polyester resin.
- branching agents compounds having three or more ester or amide-formable groups selected from carboxyl groups, hydroxyl groups and amine groups can be used.
- trimellitic acid, citric acid, maleic acid, glycerol, monosaccharides, disaccharides, dextrins, or reduced sugars may be used.
- the amount of the branching agent may be 0.00001 to 0.2 mol part based on 1 mol part of the aliphatic dicarboxylic acid.
- the color control agent is an additive used to adjust the chromaticity of the biodegradable polyester resin.
- Cobalt acetate (CA) may be used as the color adjusting agent.
- Such color regulators may be used in the esterification step together with aliphatic diols and aliphatic dicarboxylic acids, or may be used in the condensation polymerization step described below.
- the amount of the color adjusting agent may be 0.00001 to 0.2 mol based on 1 mol part of the aliphatic dicarboxylic acid.
- a crystallization agent may be added to at least one of the esterification reaction and subsequent condensation polymerization reaction.
- the crystallinity of the resin can be improved by adding the crystallization agent to promote formation of crystal nuclei.
- a polymer crystallization agent including polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) or a combination thereof; Organic crystallizing agents including sodium stearate, ethylene bis-stearamide (EBS), or combinations thereof; And at least one crystallizer selected from the group consisting of TiO 2 , carbon black, clay, talc, mica or combinations thereof.
- the crystallization agent may be added in an amount of 0.1% by weight to 5% by weight based on the total weight of the biodegradable polyester resin.
- the amount of the crystallization agent added is within the above range, the crystallization agent does not participate in the polycondensation reaction and can promote the formation of crystal nuclei without affecting the intrinsic properties of the resin.
- by-product water and / or unreacted diol compound may be discharged out of the reaction system by evaporation or distillation.
- the product of the above esterification reaction may be further condensation polymerization reaction for high molecular weight.
- the polycondensation reaction may proceed for 90 to 300 minutes at 220 ⁇ 280 °C.
- the polycondensation reaction may be performed at 250 to 280 ° C. for 90 to 180 minutes.
- the polycondensation reaction may proceed at a pressure of 1 torr or less.
- a high molecular weight biodegradable polyester resin can be obtained, removing an unreacted raw material (unreacted monomer), a low molecular oligomer, and the by-product water.
- the polycondensation reaction was completed may have a temperature of T 1, T 1 may be a 220 °C to 280 °C.
- the biodegradable polyester resin synthesized in the step (a) by the esterification reaction and the subsequent polycondensation reaction is cooled in the step (b), thereby allowing rapid solidification and subsequent pelletization.
- T 2 may be 15 ⁇ 80 °C.
- the cooling can be performed using a cooling device such as a coagulation bath.
- TPP triphenyl phosphate
- CA cobalt acetate
- the three-neck round bottom flask was heated to a temperature shown in Table 2 below in a vacuum of 1 torr or less, and then the reaction was performed for the time shown in Table 2, and then the contents of the flask were maintained at the temperature shown in Table 2 below. It discharged to the coagulation bath which becomes. As a result, PES was obtained.
- TPP triphenyl phosphate
- CA cobalt acetate
- the three-neck round bottom flask was heated to a temperature shown in Table 2 below in a vacuum of 1 torr or less, and then the reaction was performed for the time shown in Table 2, and then the contents of the flask were maintained at the temperature shown in Table 2 below. It discharged to the coagulation bath which becomes. As a result, PESA was obtained.
- the biodegradable polyester resins prepared in Examples 1 to 7 were found to solidify within a short time within 1 minute, but the biodegradable polyester resins prepared in Comparative Examples 1 to 3 were solidified. Appeared to remain molten.
- the biodegradable polyester resins of Examples 5 to 6 prepared by using the crystallizing agents, respectively are the same as those of the biodegradable polyester resins of Examples 3 to 4 manufactured without using the crystallizing agents when the same kind of resins are used. It has been shown to have a shorter solidification time (t c ).
- t c solidification time
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Abstract
Description
| EG(g(mol)) | SA(g(mol)) | AA(g(mol)) | TBT(g(mmol)) | MA(g(mmol)) | TPP(g(mmol)) | CA(g(mmol)) | 결정화제 | ||
| PE(g) | EBS(g) | ||||||||
| 실시예 1 | 124.14(2.0) | 118.09(1.0) | 0(0) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 실시예 2 | 124.14(2.0) | 118.09(1.0) | 0(0) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 실시예 3 | 124.14(2.0) | 112.18(0.95) | 7.31(0.05) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 실시예 4 | 124.14(2.0) | 112.18(0.95) | 7.31(0.05) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 실시예 5 | 124.14(2.0) | 112.18(0.95) | 7.31(0.05) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 2.0 | 0 |
| 실시예 6 | 124.14(2.0) | 112.18(0.95) | 7.31(0.05) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 2.0 |
| 실시예 7 | 124.14(2.0) | 106.28(0.90) | 14.62(0.10) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 2.0 | 0 |
| 비교예 1 | 124.14(2.0) | 118.09(1.0) | 0(0) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 비교예 2 | 124.14(2.0) | 112.18(0.95) | 7.31(0.05) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 비교예 3 | 124.14(2.0) | 106.28(0.90) | 14.62(0.10) | 0.15(0.44) | 0.1(0.75) | 1.5(4.60) | 1.5(0.30) | 0 | 0 |
| 에스테르화 반응 온도(℃) | 에스테르화 반응시 방출된 물(ml) | 축중합 반응온도(℃) | 축중합 반응시간(분) | 응고욕의 온도(℃) | |
| 실시예 1 | 180 | 30 | 280 | 116 | 30 |
| 실시예 2 | 180 | 30 | 280 | 125 | 70 |
| 실시예 3 | 180 | 31 | 280 | 123 | 35 |
| 실시예 4 | 180 | 30 | 280 | 132 | 60 |
| 실시예 5 | 180 | 31 | 280 | 117 | 35 |
| 실시예 6 | 180 | 29 | 280 | 144 | 35 |
| 실시예 7 | 180 | 30 | 280 | 129 | 35 |
| 비교예 1 | 180 | 29 | 280 | 118 | 4 |
| 비교예 2 | 180 | 31 | 280 | 122 | 85 |
| 비교예 3 | 180 | 29 | 280 | 115 | 35 |
| Tg(℃) | Tm(℃) | Tcc(℃) | Tch1(℃) | Tch(℃) | Tch2(℃) | tc(초) | |
| 실시예 1 | -9.29 | 100.64 | - | 28.74 | 60.29 | 78.17 | 58 |
| 실시예 2 | -9.29 | 100.64 | - | 28.74 | 60.29 | 78.17 | 26 |
| 실시예 3 | -11.84 | 93.90 | - | 33.26 | 53.69 | 79.22 | 52 |
| 실시예 4 | -11.84 | 93.90 | - | 33.26 | 53.69 | 79.22 | 33 |
| 실시예 5 | -13.99 | 90.71 | 66.3 | 29.25 | 49.12 | 72.50 | 33 |
| 실시예 6 | -11.21 | 95.72 | 31.11 | 16.60 | 40.23 | 62.50 | 28 |
| 실시예 7 | -13.14 | 85.41 | 66.77 | 34.02 | 58.01 | 74.50 | 48 |
| 비교예 1 | -9.29 | 100.64 | - | 28.74 | 60.29 | 78.17 | 고화X |
| 비교예 2 | -11.84 | 93.90 | - | 33.26 | 53.69 | 79.22 | 고화X |
| 비교예 3 | -13.50 | - | - | - | - | - | 고화X |
Claims (8)
- (a) 재가열 결정화 개시 온도(Tch1), 재가열 결정화 피크 온도(Tch) 및 재가열 결정화 종료 온도(Tch2)를 갖는 생분해성 폴리에스테르 수지를 합성하는 단계; 및(b) 상기 (a)단계에서 합성된 수지를 T1의 온도에서 T2의 온도까지 냉각시킨 후 상기 T2의 온도에서 tc의 시간 동안 유지시켜 결정화시키는 단계를 포함하고,상기 Tch1, Tch, Tch2, T1, 및 T2는 각각 하기 조건을 만족하는 생분해성 폴리에스테르 수지의 제조 방법:상기 Tch1, Tch, 및 Tch2는 각각 상기 (a)단계에서 합성된 용융 상태의 수지를 DSC(differential scanning calorimetry)에서 10℃/min의 냉각속도로 200℃에서 -50℃까지 냉각하는 제 1단계 및 이후 10℃/min의 가열속도로 -50℃에서 200℃까지 가열하는 제 2단계를 실시할 때, 상기 제 2단계에서 나타나는 결정화 피크의 초기 온도, 피크 온도, 및 최종 온도이며,상기 T1은 220℃ 내지 280℃이며,상기 T2는 Tch1≤T2≤Tch2 이다.
- 제1항에 있어서,상기 T2는 15~80℃인 생분해성 폴리에스테르 수지의 제조 방법.
- 제1항에 있어서,상기 tc는 5분 이하인 생분해성 폴리에스테르 수지의 제조 방법.
- 제1항에 있어서,상기 생분해성 폴리에스테르 수지는 폴리에틸렌 숙시네이트(poly(ethylene succinate): PES) 또는 폴리에틸렌 숙시네이트-아디페이트(poly(ethylene succinate-co-adipate): PESA)인 생분해성 폴리에스테르 수지의 제조 방법.
- 제4항에 있어서,상기 생분해성 폴리에스테르 수지는 숙신산 및 아디프산의 합계 1몰부에 대하여 에틸렌 글리콜을 1~2몰부의 비율로 사용하여 합성된 것인 생분해성 폴리에스테르 수지의 제조 방법.
- 제4항에 있어서,상기 생분해성 폴리에스테르 수지가 폴리에틸렌 숙시네이트-아디페이트(PESA)인 경우, 상기 숙신산의 사용량 및 상기 아디프산의 사용량은 상기 숙신산 및 상기 아디프산의 총 사용량 100몰부에 대하여 각각 80~99.9몰부 및 0.1~20몰부인 생분해성 폴리에스테르 수지의 제조 방법.
- 제1항에 있어서,상기 (a) 단계에 폴리에틸렌(PE), 폴리프로필렌(PP), 폴리에틸렌 테레프탈레이트(PET) 또는 이들의 조합을 포함하는 고분자 결정화제(nucleating agent); 소듐 스테아레이트, 에틸렌 비스스테아라미드(Ethylene bis-stearamide: EBS), 또는 이들의 조합을 포함하는 유기 결정화제; 및 TiO2, 카본블랙, 클레이, 탈크, 마이카 또는 이들의 조합을 포함하는 무기 결정화제로 이루어진 군으로부터 선택된 적어도 1종의 결정화제가 첨가되는 생분해성 폴리에스테르 수지의 제조 방법.
- 제7항에 있어서,상기 결정화제는 상기 생분해성 폴리에스테르 수지의 총중량을 기준으로 0.1 중량% 내지 5 중량%의 양으로 첨가되는 생분해성 폴리에스테르 수지의 제조 방법.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/915,711 US9617378B2 (en) | 2013-09-02 | 2014-08-25 | Method for preparing biodegradable polyester resin |
| AU2014312613A AU2014312613A1 (en) | 2013-09-02 | 2014-08-25 | Method for preparing biodegradable polyester resin |
| EP14839610.4A EP3042921A1 (en) | 2013-09-02 | 2014-08-25 | Method for preparing biodegradable polyester resin |
| CN201480048477.5A CN105518051A (zh) | 2013-09-02 | 2014-08-25 | 用于制备生物可降解聚酯树脂的方法 |
| JP2016538845A JP2016529369A (ja) | 2013-09-02 | 2014-08-25 | 生分解性ポリエステル樹脂の製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130105102A KR20150026368A (ko) | 2013-09-02 | 2013-09-02 | 생분해성 폴리에스테르 수지의 제조 방법 |
| KR10-2013-0105102 | 2013-09-02 |
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| Publication Number | Publication Date |
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| WO2015030446A1 true WO2015030446A1 (ko) | 2015-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2014/007885 Ceased WO2015030446A1 (ko) | 2013-09-02 | 2014-08-25 | 생분해성 폴리에스테르 수지의 제조 방법 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9617378B2 (ko) |
| EP (1) | EP3042921A1 (ko) |
| JP (1) | JP2016529369A (ko) |
| KR (1) | KR20150026368A (ko) |
| CN (1) | CN105518051A (ko) |
| AU (1) | AU2014312613A1 (ko) |
| TW (1) | TW201510063A (ko) |
| WO (1) | WO2015030446A1 (ko) |
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| KR102196783B1 (ko) | 2019-05-31 | 2020-12-30 | (주)길마로 | 내열성 및 내가수분해성이 향상된 친환경 조성물 및 이의 제조방법 |
| KR102191338B1 (ko) | 2019-09-27 | 2020-12-16 | (주)길마로 | 생분해성 및 가공성이 향상된 친환경 조성물 및 이의 제조방법 |
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| KR20050096602A (ko) * | 2004-03-31 | 2005-10-06 | 주식회사 코오롱 | 꼬임성이 우수한 폴리에스터 필름 |
| KR20060015284A (ko) * | 2003-05-21 | 2006-02-16 | 웰만 인코포레이티드 | 저속 결정화 폴리에스테르 수지 |
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| KR20120036856A (ko) * | 2009-06-17 | 2012-04-18 | 도레이 카부시키가이샤 | 결정화 폴리에스테르의 제조 방법 |
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| US20050214489A1 (en) | 2002-05-24 | 2005-09-29 | Hiroyuki Sato | Multilayer stretched product |
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- 2013-09-02 KR KR20130105102A patent/KR20150026368A/ko not_active Withdrawn
-
2014
- 2014-08-25 JP JP2016538845A patent/JP2016529369A/ja active Pending
- 2014-08-25 WO PCT/KR2014/007885 patent/WO2015030446A1/ko not_active Ceased
- 2014-08-25 US US14/915,711 patent/US9617378B2/en not_active Expired - Fee Related
- 2014-08-25 CN CN201480048477.5A patent/CN105518051A/zh active Pending
- 2014-08-25 AU AU2014312613A patent/AU2014312613A1/en not_active Abandoned
- 2014-08-25 EP EP14839610.4A patent/EP3042921A1/en not_active Withdrawn
- 2014-08-29 TW TW103129908A patent/TW201510063A/zh unknown
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|---|---|---|---|---|
| KR20050005493A (ko) * | 2002-05-24 | 2005-01-13 | 구레하 가가쿠 고교 가부시키가이샤 | 다층연신성형물 |
| KR20060015284A (ko) * | 2003-05-21 | 2006-02-16 | 웰만 인코포레이티드 | 저속 결정화 폴리에스테르 수지 |
| KR20050096602A (ko) * | 2004-03-31 | 2005-10-06 | 주식회사 코오롱 | 꼬임성이 우수한 폴리에스터 필름 |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2014312613A1 (en) | 2016-02-18 |
| JP2016529369A (ja) | 2016-09-23 |
| US9617378B2 (en) | 2017-04-11 |
| US20160222158A1 (en) | 2016-08-04 |
| CN105518051A (zh) | 2016-04-20 |
| KR20150026368A (ko) | 2015-03-11 |
| TW201510063A (zh) | 2015-03-16 |
| EP3042921A1 (en) | 2016-07-13 |
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