JPH05501129A - カルボン酸の使用によるセルロースエステルの製造方法 - Google Patents
カルボン酸の使用によるセルロースエステルの製造方法Info
- Publication number
- JPH05501129A JPH05501129A JP3508006A JP50800691A JPH05501129A JP H05501129 A JPH05501129 A JP H05501129A JP 3508006 A JP3508006 A JP 3508006A JP 50800691 A JP50800691 A JP 50800691A JP H05501129 A JPH05501129 A JP H05501129A
- Authority
- JP
- Japan
- Prior art keywords
- cellulose
- carbon atoms
- ester
- water
- solvent system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920002678 cellulose Polymers 0.000 title claims description 74
- 150000001735 carboxylic acids Chemical class 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title description 10
- 238000000034 method Methods 0.000 claims description 45
- 239000002904 solvent Substances 0.000 claims description 43
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 39
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 125000004432 carbon atom Chemical group C* 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 238000003797 solvolysis reaction Methods 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000001913 cellulose Substances 0.000 claims description 20
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 19
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- 238000006467 substitution reaction Methods 0.000 claims description 13
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 12
- 150000002148 esters Chemical class 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000007858 starting material Substances 0.000 claims description 9
- 229920002301 cellulose acetate Polymers 0.000 claims description 8
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 7
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 235000019260 propionic acid Nutrition 0.000 claims description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 5
- 229920005862 polyol Polymers 0.000 claims description 5
- 150000003077 polyols Chemical class 0.000 claims description 5
- 229920008347 Cellulose acetate propionate Polymers 0.000 claims description 4
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- -1 propylene ester Chemical class 0.000 claims description 4
- 229920001727 cellulose butyrate Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims 3
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 235000019445 benzyl alcohol Nutrition 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 239000000047 product Substances 0.000 description 36
- 239000008186 active pharmaceutical agent Substances 0.000 description 26
- 239000011541 reaction mixture Substances 0.000 description 12
- 229920002284 Cellulose triacetate Polymers 0.000 description 10
- 238000005481 NMR spectroscopy Methods 0.000 description 10
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 9
- 238000010561 standard procedure Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- UAYWVJHJZHQCIE-UHFFFAOYSA-L zinc iodide Chemical compound I[Zn]I UAYWVJHJZHQCIE-UHFFFAOYSA-L 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000010724 circulating oil Substances 0.000 description 3
- VILAVOFMIJHSJA-UHFFFAOYSA-N dicarbon monoxide Chemical group [C]=C=O VILAVOFMIJHSJA-UHFFFAOYSA-N 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- UZFMOKQJFYMBGY-UHFFFAOYSA-N 4-hydroxy-TEMPO Chemical compound CC1(C)CC(O)CC(C)(C)N1[O] UZFMOKQJFYMBGY-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 125000001589 carboacyl group Chemical group 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000007810 chemical reaction solvent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-OUBTZVSYSA-N Carbon-13 Chemical compound [13C] OKTJSMMVPCPJKN-OUBTZVSYSA-N 0.000 description 1
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-CUHNMECISA-N D-Cellobiose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-CUHNMECISA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- JKRWZLOCPLZZEI-UHFFFAOYSA-N alpha-Trichloromethylbenzyl acetate Chemical compound CC(=O)OC(C(Cl)(Cl)Cl)C1=CC=CC=C1 JKRWZLOCPLZZEI-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003435 aroyl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229920006218 cellulose propionate Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000020176 deacylation Effects 0.000 description 1
- 238000005947 deacylation reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007257 deesterification reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- WROMPOXWARCANT-UHFFFAOYSA-N tfa trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F.OC(=O)C(F)(F)F WROMPOXWARCANT-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/22—Post-esterification treatments, including purification
- C08B3/24—Hydrolysis or ripening
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.セルロースのC1〜C20エステルの置換度を減少させる方法において、該 方法が前記セルロースエステルの少なくとも一種を (i)水、炭素数11以下のアルコール及び炭素数11以下のポリオールから選 ばれた少なくとも一種の溶媒を含む溶媒系並びに (ii)式: R1−COOH (式中、R1は水素、炭素数1〜7の直鎖アルキル基、炭素数3〜7の分岐鎖ア ルキル基又は炭素数7〜11のアリール基)のカルボン酸から選ばれた少なくと も一種の有効量の加溶媒分解促進剤 とをセルロース出発物質の対応エステルより置換度が低いセルロースエステルの 生成を促進させるような条件下で接触させることを含んで成る方法。 2.出発セルロースエステルが2〜3の範囲の置換度を有する請求の範囲第1項 に係る方法。 3.出発セルロースエステルが2.4〜3.0の範囲の置換度を有する請求の範 囲第1項に係る方法。 4.R1が炭素数1〜6の直鎖アルキル基又は炭素数3〜6の分岐鎖アルキル基 である請求の範囲第1項に係る方法。 5.前記加溶媒分解促進剤が酢酸、プロピオン酸又は酪酸である請求の範囲第1 項に係る方法。 6.前記加溶媒分解促進剤が酢酸である請求の範囲第1項に係る方法。 7.前記溶媒系が、水、炭素数1〜7のn−アルカノール、炭素数3〜7の分岐 アルカノール及び炭素数7〜11のアリールアルカノールから選ばれた少なくと も一種の溶媒を含む請求の範囲第1項に係る方法。 8.前記溶媒系が、水、メタノール、エタノール、n−プロパノール、n−ブタ ノール、イソプロピルアルコール、ベンジルアルコール及びエチレングリコール からなる群から選ばれた少なくとも一種の溶媒を含む請求の範囲第1項に係る方 法。 9.前記溶媒系が、メタノールを含む請求の範囲第1項に係る方法。 10.前記溶媒系が、水を含む請求の範囲第1項に係る方法。 11.前記溶媒系が更に水を含む請求の範囲第9項に係る方法。 12.セルロースエステル生成物が水吸収性又は水溶性であり、0.4〜1.2 の置換度を有し、かつDMSO100ml中試料0.25gに対して温度25℃ で測定したインヘレント粘度が0.05〜1.0dl/gである請求の範囲第1 項に係る方法。 13.加溶媒分解促進剤の量がセルロースエステルのアンヒドログルコース繰返 し単位モル当り10〜10,000モル%の範囲内である請求の範囲第1項に係 る方法。 14.加溶媒分解促進剤の量がセルロースエステルのアンヒドログルコース繰返 し単位モル当り1000〜3000モル%の範囲内である請求の範囲第1項に係 る方法。 .15.前記溶媒系のセルロースエステル濃度が、溶媒系の体積当りのエステル 重量として計算して、0.33〜40%の範囲内である請求の範囲第1項に係る 方法。 16.前記溶媒系のセルロースエステル濃度が、溶媒系の体積当りのエステル重 量として計算して、10〜25%の範囲内である請求の範囲第1項に係る方法。 17.前記接触を1〜24時間の反応時間でかつ75℃〜200℃の反応温度で 実施する請求の範囲第1項に係る方法。 18.前記接触を10〜18時間の反応時間でかつ130℃〜180℃の反応温 度で実施する請求の範囲第1項に係る方法。 19.前記反応温度が140℃〜160℃である請求の範囲第17項に係る方法 。 20.前記出発セルロースエステルが酢酸セルロース、酪酸セルロース、プロピ オン酸セルロース、酢酸酪酸セルロース又は酢酸プロピオン酸セルロースである 請求の範囲第1項に係る方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50938590A | 1990-04-16 | 1990-04-16 | |
US509,385 | 1990-04-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05501129A true JPH05501129A (ja) | 1993-03-04 |
JP3315980B2 JP3315980B2 (ja) | 2002-08-19 |
Family
ID=24026446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50800691A Expired - Lifetime JP3315980B2 (ja) | 1990-04-16 | 1991-04-09 | カルボン酸の使用によるセルロースエステルの製造方法 |
Country Status (11)
Country | Link |
---|---|
US (1) | US5597912A (ja) |
EP (1) | EP0477347B1 (ja) |
JP (1) | JP3315980B2 (ja) |
KR (1) | KR100205465B1 (ja) |
AT (1) | ATE139544T1 (ja) |
CA (1) | CA2059130C (ja) |
DE (1) | DE69120360T2 (ja) |
DK (1) | DK0477347T3 (ja) |
ES (1) | ES2088003T3 (ja) |
GR (1) | GR3020847T3 (ja) |
WO (1) | WO1991016358A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014142166A1 (ja) | 2013-03-13 | 2014-09-18 | 株式会社ダイセル | 低置換度酢酸セルロース |
US10869883B2 (en) | 2013-12-20 | 2020-12-22 | Daicel Corporation | Nutrient composition having lipid metabolism-improving action |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5214137A (en) * | 1991-02-08 | 1993-05-25 | Eastman Kodak Company | Preparation of cellulose diacetate by recycling processed film |
MY106937A (en) * | 1992-01-13 | 1995-08-30 | Eastman Chem Co | Continuous hydrolysis of cellulose acetate |
WO1996030412A1 (fr) * | 1995-03-31 | 1996-10-03 | Daicel Chemical Industries, Ltd. | Acetate de cellulose hautement resistant et procede de preparation associe |
EP0763544B1 (en) * | 1995-03-31 | 2003-09-24 | Daicel Chemical Industries, Ltd. | Cellulose acetate having high moldability and process for preparing the same |
JP3942669B2 (ja) * | 1995-03-31 | 2007-07-11 | ダイセル化学工業株式会社 | 物理強度に優れたセルロースアセテート、及びその製造法 |
IT1286510B1 (it) * | 1996-11-29 | 1998-07-15 | Cooperativa Centro Ricerche Po | Esteri butirrici ad attivita' antiproliferativa e composizioni farmaceutiche che li contengono |
US20100175691A1 (en) * | 2009-01-15 | 2010-07-15 | Celanese Acetate Llc | Process for recycling cellulose acetate ester waste |
KR102356094B1 (ko) | 2014-03-24 | 2022-01-26 | 주식회사 다이셀 | 약학 조성물 |
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GB317088A (en) * | 1928-08-11 | 1930-08-28 | Ver Fuer Chemische Ind Ag | Process and apparatus for saponification of cellulose acetate solutions |
GB329704A (en) * | 1929-02-25 | 1930-05-26 | Rhone Poulenc Sa | Manufacture of cellulose esters |
US1984147A (en) * | 1929-10-22 | 1934-12-11 | Eastman Kodak Co | Process for the production of cellulose esters and corresponding alkyl esters |
GB356012A (en) * | 1929-10-22 | 1931-09-03 | Kodak Ltd | Improvements relating to the manufacture of cellulose esters |
US1880560A (en) * | 1929-12-14 | 1932-10-04 | Eastman Kodak Co | Process for the hydrolysis of cellulose acetate |
US2026583A (en) * | 1931-07-17 | 1936-01-07 | Eastman Kodak Co | Process of changing the solubility of mixed esters of cellulose and the product resulting therefrom |
GB398626A (en) * | 1931-07-17 | 1933-09-21 | Kodak Ltd | Improved treatment of mixed organic esters of cellulose |
US2005383A (en) * | 1932-02-20 | 1935-06-18 | Eastman Kodak Co | Hydrolysis of cellulose esters |
US2129052A (en) * | 1936-02-04 | 1938-09-06 | Eastman Kodak Co | Hydrolyzed cellulose acetate |
GB488946A (en) * | 1937-01-18 | 1938-07-18 | Henry Dreyfus | Improvements in the manufacture and treatment of fibres, yarns, fabrics, films and like materials having a basis of an organic ester of cellulose |
GB496065A (en) * | 1937-06-07 | 1938-11-24 | Ig Farbenindustrie Ag | Manufacture of improved cellulose esters |
US2327770A (en) * | 1940-11-23 | 1943-08-24 | Eastman Kodak Co | Method of preparing far-hydrolyzed cellulose esters |
GB568932A (en) * | 1943-07-30 | 1945-04-26 | John Guilfoyle Williams | Improvements in or relating to the manufacture of cellulose esters |
GB581157A (en) * | 1944-03-09 | 1946-10-02 | British Celanese | Improvements in or relating to the production of organic esters of cellulose |
US2448082A (en) * | 1945-05-03 | 1948-08-31 | Celanese Corp | Recovery of water-soluble cellulose esters |
US2470191A (en) * | 1945-12-06 | 1949-05-17 | Celanese Corp | Rapid ripening of cellulose esters |
GB696903A (en) * | 1950-08-03 | 1953-09-09 | Courtaulds Ltd | Improvements in and relating to the production of cellulose acetate |
GB755018A (en) * | 1952-10-31 | 1956-08-15 | Rhodiaceta | Improvements in or relating to the continuous hydrolysis of esters in homogeneous phase and apparatus therefor |
FR1143485A (fr) * | 1953-06-05 | 1957-10-01 | Procédé de saponification des triesters de cellulose | |
US2801239A (en) * | 1954-06-07 | 1957-07-30 | Eastman Kodak Co | Method of hydrolyzing cellulose esters |
US2836590A (en) * | 1955-05-05 | 1958-05-27 | Hercules Powder Co Ltd | Method for partial deacylation of organic acid esters of cellulose |
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DE3246417A1 (de) * | 1982-12-15 | 1984-06-20 | Akzo Gmbh, 5600 Wuppertal | Wasserunloesliche fasern aus celluloseacetat, cellulosepropionat und cellulosebutyrat mit einem extrem hohen absorptionsvermoegen fuer wasser und physiologische fluessigkeiten |
US4480090A (en) * | 1983-10-21 | 1984-10-30 | Eastman Kodak Company | Process for esterification of cellulose using as the catalyst the combination of sulfuric acid, phosphoric acid and a hindered aliphatic alcohol |
-
1991
- 1991-04-09 DE DE69120360T patent/DE69120360T2/de not_active Expired - Fee Related
- 1991-04-09 CA CA002059130A patent/CA2059130C/en not_active Expired - Fee Related
- 1991-04-09 WO PCT/US1991/002293 patent/WO1991016358A1/en active IP Right Grant
- 1991-04-09 AT AT91908408T patent/ATE139544T1/de not_active IP Right Cessation
- 1991-04-09 KR KR1019910701871A patent/KR100205465B1/ko not_active IP Right Cessation
- 1991-04-09 ES ES91908408T patent/ES2088003T3/es not_active Expired - Lifetime
- 1991-04-09 DK DK91908408.7T patent/DK0477347T3/da active
- 1991-04-09 JP JP50800691A patent/JP3315980B2/ja not_active Expired - Lifetime
- 1991-04-09 EP EP91908408A patent/EP0477347B1/en not_active Expired - Lifetime
-
1994
- 1994-03-04 US US08/206,236 patent/US5597912A/en not_active Expired - Lifetime
-
1996
- 1996-08-22 GR GR960402204T patent/GR3020847T3/el unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014142166A1 (ja) | 2013-03-13 | 2014-09-18 | 株式会社ダイセル | 低置換度酢酸セルロース |
US10703825B2 (en) | 2013-03-13 | 2020-07-07 | Daicel Corporation | Cellulose acetate with a low degree of substitution |
US10869883B2 (en) | 2013-12-20 | 2020-12-22 | Daicel Corporation | Nutrient composition having lipid metabolism-improving action |
Also Published As
Publication number | Publication date |
---|---|
EP0477347A1 (en) | 1992-04-01 |
CA2059130C (en) | 1999-05-11 |
KR100205465B1 (ko) | 1999-07-01 |
US5597912A (en) | 1997-01-28 |
WO1991016358A1 (en) | 1991-10-31 |
DE69120360T2 (de) | 1996-10-31 |
KR920702693A (ko) | 1992-10-06 |
CA2059130A1 (en) | 1991-10-17 |
DE69120360D1 (de) | 1996-07-25 |
DK0477347T3 (da) | 1996-07-15 |
GR3020847T3 (en) | 1996-11-30 |
JP3315980B2 (ja) | 2002-08-19 |
ATE139544T1 (de) | 1996-07-15 |
EP0477347B1 (en) | 1996-06-19 |
ES2088003T3 (es) | 1996-08-01 |
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