NL8202030A - Werkwijze voor de bereiding van carbonzuuresters uit onverzadigde en meerwaardige alcoholen. - Google Patents
Werkwijze voor de bereiding van carbonzuuresters uit onverzadigde en meerwaardige alcoholen. Download PDFInfo
- Publication number
- NL8202030A NL8202030A NL8202030A NL8202030A NL8202030A NL 8202030 A NL8202030 A NL 8202030A NL 8202030 A NL8202030 A NL 8202030A NL 8202030 A NL8202030 A NL 8202030A NL 8202030 A NL8202030 A NL 8202030A
- Authority
- NL
- Netherlands
- Prior art keywords
- carbonate
- reaction
- alcohol
- carried out
- process according
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 21
- 238000002360 preparation method Methods 0.000 title claims description 8
- 150000001298 alcohols Chemical class 0.000 title description 2
- 150000004651 carbonic acid esters Chemical class 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims description 25
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 24
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 claims description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
- 150000005846 sugar alcohols Polymers 0.000 claims description 10
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 8
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 8
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000005910 alkyl carbonate group Chemical group 0.000 claims description 5
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 5
- ZSPTYLOMNJNZNG-UHFFFAOYSA-N 3-Buten-1-ol Chemical compound OCCC=C ZSPTYLOMNJNZNG-UHFFFAOYSA-N 0.000 claims description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
- WCASXYBKJHWFMY-NSCUHMNNSA-N 2-Buten-1-ol Chemical compound C\C=C\CO WCASXYBKJHWFMY-NSCUHMNNSA-N 0.000 claims description 2
- BYDRTKVGBRTTIT-UHFFFAOYSA-N 2-methylprop-2-en-1-ol Chemical compound CC(=C)CO BYDRTKVGBRTTIT-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 2
- PIZLBWGMERQCOC-UHFFFAOYSA-N dibenzyl carbonate Chemical compound C=1C=CC=CC=1COC(=O)OCC1=CC=CC=C1 PIZLBWGMERQCOC-UHFFFAOYSA-N 0.000 claims description 2
- QLVWOKQMDLQXNN-UHFFFAOYSA-N dibutyl carbonate Chemical compound CCCCOC(=O)OCCCC QLVWOKQMDLQXNN-UHFFFAOYSA-N 0.000 claims description 2
- VUPKGFBOKBGHFZ-UHFFFAOYSA-N dipropyl carbonate Chemical compound CCCOC(=O)OCCC VUPKGFBOKBGHFZ-UHFFFAOYSA-N 0.000 claims description 2
- WCASXYBKJHWFMY-UHFFFAOYSA-N gamma-methylallyl alcohol Natural products CC=CCO WCASXYBKJHWFMY-UHFFFAOYSA-N 0.000 claims description 2
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 claims description 2
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 150000007530 organic bases Chemical class 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- 239000000047 product Substances 0.000 description 23
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 9
- 229940117969 neopentyl glycol Drugs 0.000 description 7
- 239000007858 starting material Substances 0.000 description 6
- OAOZZYBUAWEDRA-UHFFFAOYSA-N 3,4-dimethylidenehexane Chemical group CCC(=C)C(=C)CC OAOZZYBUAWEDRA-UHFFFAOYSA-N 0.000 description 3
- -1 allyl carbonates Chemical class 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- HNVRRHSXBLFLIG-UHFFFAOYSA-N 3-hydroxy-3-methylbut-1-ene Chemical compound CC(C)(O)C=C HNVRRHSXBLFLIG-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 150000001733 carboxylic acid esters Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- FZFAMSAMCHXGEF-UHFFFAOYSA-N chloro formate Chemical compound ClOC=O FZFAMSAMCHXGEF-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- HNRMPXKDFBEGFZ-UHFFFAOYSA-N ethyl trimethyl methane Natural products CCC(C)(C)C HNRMPXKDFBEGFZ-UHFFFAOYSA-N 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- BZAZNULYLRVMSW-UHFFFAOYSA-N 2-Methyl-2-buten-3-ol Natural products CC(C)=C(C)O BZAZNULYLRVMSW-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- SYFOAKAXGNMQAX-UHFFFAOYSA-N bis(prop-2-enyl) carbonate;2-(2-hydroxyethoxy)ethanol Chemical compound OCCOCCO.C=CCOC(=O)OCC=C SYFOAKAXGNMQAX-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 1
- GUNDKLAGHABJDI-UHFFFAOYSA-N dimethyl carbonate;methanol Chemical compound OC.COC(=O)OC GUNDKLAGHABJDI-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- YWOITFUKFOYODT-UHFFFAOYSA-N methanol;sodium Chemical compound [Na].OC YWOITFUKFOYODT-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- CAEWJEXPFKNBQL-UHFFFAOYSA-N prop-2-enyl carbonochloridate Chemical compound ClC(=O)OCC=C CAEWJEXPFKNBQL-UHFFFAOYSA-N 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C68/00—Preparation of esters of carbonic or haloformic acids
- C07C68/06—Preparation of esters of carbonic or haloformic acids from organic carbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2188481 | 1981-05-21 | ||
| IT21884/81A IT1136629B (it) | 1981-05-21 | 1981-05-21 | Procedimento per la sintesi di esteri dell'acido carbonico derivanti da alcoli insaturi ed alcoli poliidrici |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8202030A true NL8202030A (nl) | 1982-12-16 |
Family
ID=11188206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8202030A NL8202030A (nl) | 1981-05-21 | 1982-05-17 | Werkwijze voor de bereiding van carbonzuuresters uit onverzadigde en meerwaardige alcoholen. |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4512930A (da) |
| JP (1) | JPS57193425A (da) |
| AT (1) | AT391691B (da) |
| BE (1) | BE893244A (da) |
| CA (1) | CA1183862A (da) |
| CH (1) | CH649279A5 (da) |
| CS (1) | CS246056B2 (da) |
| DE (1) | DE3219237C2 (da) |
| DK (1) | DK161195C (da) |
| ES (1) | ES8305299A1 (da) |
| FR (1) | FR2506302B1 (da) |
| GB (1) | GB2098984B (da) |
| IE (1) | IE53063B1 (da) |
| IT (1) | IT1136629B (da) |
| LU (1) | LU84152A1 (da) |
| NL (1) | NL8202030A (da) |
| NO (1) | NO155538C (da) |
| SE (1) | SE453290B (da) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4691041A (en) * | 1986-01-03 | 1987-09-01 | Texaco Inc. | Process for production of ethylene glycol and dimethyl carbonate |
| DE3629176A1 (de) * | 1986-08-28 | 1988-03-17 | Hoechst Ag | Vernetzte polymerisate mit carbonatestergruppen und verfahren zu ihrer herstellung |
| US5238590A (en) * | 1989-09-29 | 1993-08-24 | Mitsui Petrochemical Industries, Ltd. | Lubricant oil, polyalkylene glycol polycarbonates and process for preparing them |
| ATE175659T1 (de) * | 1990-09-17 | 1999-01-15 | Mitsui Chemicals Inc | Polycarbonate, ihre verwendung, herstellung und reinigung |
| IT1283314B1 (it) * | 1996-03-28 | 1998-04-16 | Enichem Spa | Processo per la preparazione di policarbonati copolieteri polioli |
| WO1998010435A1 (fr) * | 1996-09-05 | 1998-03-12 | Kabushiki Kaisha Miyasaka Gomu | Passe-fil |
| JP5069855B2 (ja) * | 2005-12-07 | 2012-11-07 | 株式会社ダイセル | 脂環式オレフィン多価カーボネート化合物の製造方法および脂環式オレフィン多価カーボネート化合物の混合物 |
| CN101328124B (zh) * | 2008-08-01 | 2011-01-12 | 河北工业大学 | 一种合成二甘醇双烯丙基碳酸酯的酯交换法 |
| WO2012091458A2 (ko) * | 2010-12-28 | 2012-07-05 | 주식회사 케이오씨솔루션 | 알릴카보네이트 화합물의 신규 제조 방법 및 이를 이용한 광학용 수지 조성물 |
| CN103626663B (zh) * | 2013-12-16 | 2016-01-20 | 深圳新宙邦科技股份有限公司 | 碳酸二烯丙酯的制备方法 |
| WO2023168562A1 (zh) * | 2022-03-07 | 2023-09-14 | 上纬创新育成股份有限公司 | 含碳酸酯的不饱和化合物、其制备方法、其制备的固化物及降解固化物的方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD54349A (da) * | ||||
| US2384115A (en) * | 1940-10-15 | 1945-09-04 | Pittsburgh Plate Glass Co | Polybasic acid-polyhydric alcohol esters and polymers thereof |
| GB713189A (en) * | 1951-08-31 | 1954-08-04 | Ici Ltd | Improvements in and relating to liquid nitrocellulose compostions and to films, coatings and the like obtained therefrom |
| US2789968A (en) * | 1953-12-08 | 1957-04-23 | Eastman Kodak Co | Polycarbonates from polymethylene glycol-bis |
| US3632828A (en) * | 1968-12-16 | 1972-01-04 | Dow Chemical Co | Polyethylene glycol monomethyl ether carbonates |
| US3642858A (en) * | 1969-02-12 | 1972-02-15 | Dow Chemical Co | Carbonate synthesis from alkylene carbonates |
| US3784578A (en) * | 1970-06-26 | 1974-01-08 | Bayer Ag | Process for the production of allyl esters |
| IT1034961B (it) * | 1975-04-09 | 1979-10-10 | Snam Progetti | Procedimento per la preparazione di dialchilcarbonati |
| DE2740251A1 (de) * | 1977-09-07 | 1979-03-22 | Bayer Ag | Verfahren zur herstellung von dialkylcarbonaten |
| US4144262A (en) * | 1977-10-05 | 1979-03-13 | Ppg Industries, Inc. | Triallyl carbonate monomers |
| DE2749754A1 (de) * | 1977-11-07 | 1979-05-10 | Basf Ag | Verfahren zur herstellung von kohlensaeureestern |
| US4349486A (en) * | 1978-12-15 | 1982-09-14 | General Electric Company | Monocarbonate transesterification process |
| US4273726A (en) * | 1979-11-13 | 1981-06-16 | Ppg Industries, Inc. | Polyol (allyl carbonate) synthesis utilizing solid alkali metal hydroxide |
| US4293503A (en) * | 1980-01-10 | 1981-10-06 | Ppg Industries, Inc. | Synthesis of polyol bis(allyl carbonate) utilizing reagent recovery and recycle |
| IT1130285B (it) * | 1980-03-05 | 1986-06-11 | Anic Spa | Procedimento per la sintesi di allil carbonati di alcoli poliidrici e loro derivati |
| FR2511010A1 (fr) * | 1981-08-06 | 1983-02-11 | Organo Synthese Ste Fse | Nouveau melange polymerisable a base de bis (allylcarbonate) de diethyleneglycol, son procede de preparation et son utilisation pour la preparation de produits finis |
-
1981
- 1981-05-21 IT IT21884/81A patent/IT1136629B/it active
-
1982
- 1982-04-26 US US06/371,670 patent/US4512930A/en not_active Expired - Fee Related
- 1982-04-29 CH CH2629/82A patent/CH649279A5/it not_active IP Right Cessation
- 1982-05-04 CA CA000402264A patent/CA1183862A/en not_active Expired
- 1982-05-05 GB GB8213000A patent/GB2098984B/en not_active Expired
- 1982-05-10 DK DK209182A patent/DK161195C/da not_active IP Right Cessation
- 1982-05-12 FR FR8208281A patent/FR2506302B1/fr not_active Expired
- 1982-05-17 LU LU84152A patent/LU84152A1/fr unknown
- 1982-05-17 NL NL8202030A patent/NL8202030A/nl not_active Application Discontinuation
- 1982-05-17 AT AT0193082A patent/AT391691B/de not_active IP Right Cessation
- 1982-05-18 JP JP57082539A patent/JPS57193425A/ja active Granted
- 1982-05-19 BE BE0/208137A patent/BE893244A/fr not_active IP Right Cessation
- 1982-05-19 NO NO821666A patent/NO155538C/no unknown
- 1982-05-19 SE SE8203152A patent/SE453290B/sv not_active IP Right Cessation
- 1982-05-20 CS CS823731A patent/CS246056B2/cs unknown
- 1982-05-20 IE IE1211/82A patent/IE53063B1/en not_active IP Right Cessation
- 1982-05-21 DE DE3219237A patent/DE3219237C2/de not_active Expired
- 1982-05-21 ES ES513186A patent/ES8305299A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES513186A0 (es) | 1983-04-01 |
| ATA193082A (de) | 1990-05-15 |
| GB2098984A (en) | 1982-12-01 |
| CA1183862A (en) | 1985-03-12 |
| JPS6334144B2 (da) | 1988-07-08 |
| DE3219237A1 (de) | 1982-12-09 |
| ES8305299A1 (es) | 1983-04-01 |
| CH649279A5 (it) | 1985-05-15 |
| FR2506302B1 (fr) | 1986-02-21 |
| NO155538C (no) | 1987-04-15 |
| LU84152A1 (fr) | 1983-04-13 |
| US4512930A (en) | 1985-04-23 |
| BE893244A (fr) | 1982-11-19 |
| IT8121884A0 (it) | 1981-05-21 |
| IE821211L (en) | 1982-11-21 |
| DK161195C (da) | 1991-11-11 |
| IT1136629B (it) | 1986-09-03 |
| SE8203152L (sv) | 1982-11-22 |
| DK209182A (da) | 1982-11-22 |
| JPS57193425A (en) | 1982-11-27 |
| NO821666L (no) | 1982-11-22 |
| NO155538B (no) | 1987-01-05 |
| SE453290B (sv) | 1988-01-25 |
| AT391691B (de) | 1990-11-12 |
| DE3219237C2 (de) | 1986-01-02 |
| DK161195B (da) | 1991-06-10 |
| GB2098984B (en) | 1985-03-27 |
| FR2506302A1 (fr) | 1982-11-26 |
| CS246056B2 (en) | 1986-10-16 |
| IE53063B1 (en) | 1988-05-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| DNT | Communications of changes of names of applicants whose applications have been laid open to public inspection |
Free format text: ENICHEM ANIC S.P.A. |
|
| CNR | Transfer of rights (patent application after its laying open for public inspection) |
Free format text: ENICHEM SYNTHESIS S.P.A. |
|
| BV | The patent application has lapsed |