BE463298A - - Google Patents

Info

Publication number: BE463298A
Authority: BE; Belgium
Prior art keywords: glycol; acid; cold; ester; reaction
Prior art date: 1943-08-23

Application number

Other languages

Priority date (The priority date 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 date listed.)

1943-08-23

Publication of BE463298A publication Critical patent/BE463298A/fr

1943-08-23 Priority claimed from GB13744/43A external-priority patent/GB579462A/en

Links

LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 68
239000002253 acid Substances 0.000 description 39
239000000047 product Substances 0.000 description 36
150000002148 esters Chemical class 0.000 description 32
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 26
238000006243 chemical reaction Methods 0.000 description 23
238000010438 heat treatment Methods 0.000 description 21
238000002844 melting Methods 0.000 description 20
230000008018 melting Effects 0.000 description 20
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 19
235000019441 ethanol Nutrition 0.000 description 19
229920000642 polymer Polymers 0.000 description 16
150000007513 acids Chemical class 0.000 description 14
239000003054 catalyst Substances 0.000 description 14
229910052757 nitrogen Inorganic materials 0.000 description 13
239000000835 fiber Substances 0.000 description 12
238000009835 boiling Methods 0.000 description 11
238000004821 distillation Methods 0.000 description 11
150000002334 glycols Chemical class 0.000 description 11
239000000203 mixture Substances 0.000 description 10
238000010622 cold drawing Methods 0.000 description 9
OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 7
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
-1 cobatlt Chemical compound 0.000 description 6
125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 6
239000005977 Ethylene Substances 0.000 description 5
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
229910052744 lithium Inorganic materials 0.000 description 5
229910052749 magnesium Inorganic materials 0.000 description 5
239000011777 magnesium Substances 0.000 description 5
238000000034 method Methods 0.000 description 5
125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 5
229910052760 oxygen Inorganic materials 0.000 description 5
229920000728 polyester Polymers 0.000 description 5
HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
230000032050 esterification Effects 0.000 description 4
238000005886 esterification reaction Methods 0.000 description 4
CKFGINPQOCXMAZ-UHFFFAOYSA-N methanediol Chemical compound OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 4
239000001301 oxygen Substances 0.000 description 4
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
238000006116 polymerization reaction Methods 0.000 description 4
229920006324 polyoxymethylene Polymers 0.000 description 4
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
229910052797 bismuth Inorganic materials 0.000 description 3
JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 3
229910052793 cadmium Inorganic materials 0.000 description 3
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
125000004432 carbon atom Chemical group C* 0.000 description 3
150000001875 compounds Chemical class 0.000 description 3
125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
229910052742 iron Inorganic materials 0.000 description 3
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 3
229910052751 metal Inorganic materials 0.000 description 3
239000002184 metal Substances 0.000 description 3
150000002739 metals Chemical class 0.000 description 3
239000011541 reaction mixture Substances 0.000 description 3
229910052708 sodium Inorganic materials 0.000 description 3
239000011734 sodium Substances 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
229910052725 zinc Inorganic materials 0.000 description 3
239000011701 zinc Substances 0.000 description 3
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
150000001298 alcohols Chemical class 0.000 description 2
229910052783 alkali metal Inorganic materials 0.000 description 2
150000001340 alkali metals Chemical class 0.000 description 2
229910052782 aluminium Inorganic materials 0.000 description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
229910052787 antimony Inorganic materials 0.000 description 2
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
229910052791 calcium Inorganic materials 0.000 description 2
239000011575 calcium Substances 0.000 description 2
229910052804 chromium Inorganic materials 0.000 description 2
239000011651 chromium Substances 0.000 description 2
229910052802 copper Inorganic materials 0.000 description 2
239000010949 copper Substances 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 2
229920006240 drawn fiber Polymers 0.000 description 2
239000007789 gas Substances 0.000 description 2
150000004820 halides Chemical class 0.000 description 2
239000001257 hydrogen Substances 0.000 description 2
229910052739 hydrogen Inorganic materials 0.000 description 2
239000011261 inert gas Substances 0.000 description 2
239000012442 inert solvent Substances 0.000 description 2
239000007788 liquid Substances 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
229910052750 molybdenum Inorganic materials 0.000 description 2
239000011733 molybdenum Substances 0.000 description 2
229910052759 nickel Inorganic materials 0.000 description 2
239000003960 organic solvent Substances 0.000 description 2
229910052763 palladium Inorganic materials 0.000 description 2
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
229910052697 platinum Inorganic materials 0.000 description 2
229910052700 potassium Inorganic materials 0.000 description 2
239000011591 potassium Substances 0.000 description 2
BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
229910052709 silver Inorganic materials 0.000 description 2
239000004332 silver Substances 0.000 description 2
239000007787 solid Substances 0.000 description 2
239000002904 solvent Substances 0.000 description 2
229910052718 tin Inorganic materials 0.000 description 2
XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 1
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical group [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
241000028036 Nixe Species 0.000 description 1
241000282320 Panthera leo Species 0.000 description 1
241000212342 Sium Species 0.000 description 1
238000002441 X-ray diffraction Methods 0.000 description 1
150000001335 aliphatic alkanes Chemical class 0.000 description 1
125000005907 alkyl ester group Chemical group 0.000 description 1
150000007860 aryl ester derivatives Chemical class 0.000 description 1
125000003118 aryl group Chemical group 0.000 description 1
239000002585 base Substances 0.000 description 1
ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
235000010290 biphenyl Nutrition 0.000 description 1
239000004305 biphenyl Substances 0.000 description 1
125000006267 biphenyl group Chemical group 0.000 description 1
229910052799 carbon Inorganic materials 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
229910017052 cobalt Inorganic materials 0.000 description 1
239000010941 cobalt Substances 0.000 description 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
238000009833 condensation Methods 0.000 description 1
230000005494 condensation Effects 0.000 description 1
238000002425 crystallisation Methods 0.000 description 1
230000008025 crystallization Effects 0.000 description 1
FOTKYAAJKYLFFN-UHFFFAOYSA-N decane-1,10-diol Chemical compound OCCCCCCCCCCO FOTKYAAJKYLFFN-UHFFFAOYSA-N 0.000 description 1
230000007423 decrease Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
239000003085 diluting agent Substances 0.000 description 1
KCIDZIIHRGYJAE-YGFYJFDDSA-L dipotassium;[(2r,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] phosphate Chemical compound [K+].[K+].OC[C@H]1O[C@H](OP([O-])([O-])=O)[C@H](O)[C@@H](O)[C@H]1O KCIDZIIHRGYJAE-YGFYJFDDSA-L 0.000 description 1
125000004494 ethyl ester group Chemical group 0.000 description 1
230000009969 flowable effect Effects 0.000 description 1
235000019256 formaldehyde Nutrition 0.000 description 1
230000004927 fusion Effects 0.000 description 1
210000003128 head Anatomy 0.000 description 1
125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
150000002431 hydrogen Chemical class 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
229910010272 inorganic material Inorganic materials 0.000 description 1
239000011147 inorganic material Substances 0.000 description 1
238000009434 installation Methods 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
210000000554 iris Anatomy 0.000 description 1
230000007775 late Effects 0.000 description 1
LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
239000000155 melt Substances 0.000 description 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
229910052753 mercury Inorganic materials 0.000 description 1
125000004492 methyl ester group Chemical group 0.000 description 1
125000000896 monocarboxylic acid group Chemical group 0.000 description 1
150000007530 organic bases Chemical group 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
239000002685 polymerization catalyst Substances 0.000 description 1
229910000027 potassium carbonate Inorganic materials 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
108090000623 proteins and genes Proteins 0.000 description 1
238000013138 pruning Methods 0.000 description 1
UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
230000000306 recurrent effect Effects 0.000 description 1
238000010992 reflux Methods 0.000 description 1
230000002441 reversible effect Effects 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
235000011121 sodium hydroxide Nutrition 0.000 description 1
239000012265 solid product Substances 0.000 description 1
238000009987 spinning Methods 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000004753 textile Substances 0.000 description 1
238000009966 trimming Methods 0.000 description 1
229910052721 tungsten Inorganic materials 0.000 description 1

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
- C08G63/02—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
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
- 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
- C08G63/82—Preparation processes characterised by the catalyst used

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Health & Medical Sciences (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Polyesters Or Polycarbonates (AREA)

BE463298D 1943-08-23 BE463298A (pl)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
GB921683X		1943-08-23
GB13744/43A GB579462A (en)	1943-08-23	1943-08-23	Improvements relating to the manufacture of highly polymeric substances
GB2465150X		1943-08-23
GB269181X		1943-08-23

Publications (1)

Publication Number	Publication Date
BE463298A true BE463298A (pl)

Family

ID=27448208

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE463298D BE463298A (pl)	1943-08-23

Country Status (2)

Country	Link
BE (1)	BE463298A (pl)
NL (1)	NL60829C (pl)

0
- BE BE463298D patent/BE463298A/fr unknown
- NL NL60829D patent/NL60829C/xx active

Also Published As

Publication number	Publication date
NL60829C (pl)

Publication	Publication Date	Title
EP2729516B1 (fr)	2017-03-01	Nouveau polyamide, procede de preparation et utilisations
FI84181C (fi)	1991-10-25	Smaeltspinnbar vaetskekristallpolyester, foerfarande foer dess framstaellning samt dess tillaempningsformer.
JPH05507076A (ja)	1993-10-14	環式エステルの精製法
EP1276735B1 (fr)	2005-06-08	Procede de purificaction d'esters cycliques
US2657972A (en)	1953-11-03	Copolymer of l-leucine and dl-phenylalanine
US2850483A (en)	1958-09-02	Catalytic production of polyethylene terephthalate
Bock et al.	1958	Linear polyesters derived from protocatechuic acid
US2719835A (en)	1955-10-04	Nitrogen-containing linear polyesters
CN115160128A (zh)	2022-10-11	一种冰晶丙烯酸的制备方法
EP3802660B1 (fr)	2024-07-17	Procédé de cristallisation d'un polyester comprenant au moins un motif 1,4 : 3,6-dianhydrohexitol
CH616693A5 (pl)	1980-04-15
CH269060A (fr)	1950-06-15	Procédé de préparation d'un ester fortement polymérisé à structure cristalline.
KR20250005220A (ko)	2025-01-09	1,4:3,6-디안하이드로헥시톨 디에스테르 조성물의 제조 방법
CH269061A (fr)	1950-06-15	Procédé de préparation d'un ester fortement polymérisé à structure cristalline.
BE568181A (pl)
SU1103798A3 (ru)	1984-07-15	Способ получени полисульфидов
US2870127A (en)	1959-01-20	Process for producing synthetic linear aromatic sulfur-containing condensation polyesters and products thereof
BE549154A (pl)
FI86841B (fi)	1992-07-15	Foerfarande foer framstaellning av (1-fenyletyl) hydrokinon.
JPS6270329A (ja)	1987-03-31	グリセリンの精製法
BE430373A (pl)	1938-10-31
CH271566A (fr)	1950-10-31	Procédé de préparation d'un ester fortement polymérisé à structure cristalline.
BE560045A (pl)
BE576464A (pl)
BE637078A (pl)