CA1312859C - Derives hydroxypropoxy et methoxy de la cellulose, utiles comme agents epaississants dans des liquides organiques - Google Patents
Derives hydroxypropoxy et methoxy de la cellulose, utiles comme agents epaississants dans des liquides organiquesInfo
- Publication number
- CA1312859C CA1312859C CA000615898A CA615898A CA1312859C CA 1312859 C CA1312859 C CA 1312859C CA 000615898 A CA000615898 A CA 000615898A CA 615898 A CA615898 A CA 615898A CA 1312859 C CA1312859 C CA 1312859C
- Authority
- CA
- Canada
- Prior art keywords
- percent
- substitution
- methyl cellulose
- hydroxypropyl methyl
- methoxyl
- 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.)
- Expired - Fee Related
Links
- -1 Hydroxypropyl methyl cellulose ethers Chemical class 0.000 title claims abstract description 85
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 title claims abstract description 85
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 title claims abstract description 85
- 239000007788 liquid Substances 0.000 title claims abstract description 47
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 title claims abstract description 42
- 239000002562 thickening agent Substances 0.000 title abstract description 21
- 238000006467 substitution reaction Methods 0.000 claims abstract description 80
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000007864 aqueous solution Substances 0.000 claims abstract description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 75
- 239000000203 mixture Substances 0.000 claims description 17
- 230000008719 thickening Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 8
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims 12
- 150000002170 ethers Chemical class 0.000 abstract description 33
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 abstract 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 35
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 235000019441 ethanol Nutrition 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
- HSHXDCVZWHOWCS-UHFFFAOYSA-N N'-hexadecylthiophene-2-carbohydrazide Chemical compound CCCCCCCCCCCCCCCCNNC(=O)c1cccs1 HSHXDCVZWHOWCS-UHFFFAOYSA-N 0.000 description 10
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 229920002678 cellulose Polymers 0.000 description 7
- 239000001913 cellulose Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 229920003086 cellulose ether Polymers 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- 229940050176 methyl chloride Drugs 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 239000008186 active pharmaceutical agent Substances 0.000 description 4
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 4
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 101100424627 Caenorhabditis elegans mec-12 gene Proteins 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000000375 suspending agent Substances 0.000 description 2
- 238000010557 suspension polymerization reaction Methods 0.000 description 2
- KSWPYYWLOGLIIV-UHFFFAOYSA-N 1,4-dioxane pyrrolidin-2-one Chemical compound N1C(CCC1)=O.O1CCOCC1 KSWPYYWLOGLIIV-UHFFFAOYSA-N 0.000 description 1
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 description 1
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- JBIQBIBOIJBLDZ-UHFFFAOYSA-N 2-ethoxyethanol;1-methoxyethanol Chemical compound COC(C)O.CCOCCO JBIQBIBOIJBLDZ-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 101001098066 Naja melanoleuca Basic phospholipase A2 1 Proteins 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920013820 alkyl cellulose Polymers 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- AZHSSKPUVBVXLK-UHFFFAOYSA-N ethane-1,1-diol Chemical compound CC(O)O AZHSSKPUVBVXLK-UHFFFAOYSA-N 0.000 description 1
- DHNGCHLFKUPGPX-RMKNXTFCSA-N ethyl trans-p-methoxycinnamate Chemical class CCOC(=O)\C=C\C1=CC=C(OC)C=C1 DHNGCHLFKUPGPX-RMKNXTFCSA-N 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- NUKZAGXMHTUAFE-UHFFFAOYSA-N hexanoic acid methyl ester Natural products CCCCCC(=O)OC NUKZAGXMHTUAFE-UHFFFAOYSA-N 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical class [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Medicinal Preparation (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/706,829 US4612345A (en) | 1985-02-28 | 1985-02-28 | Hydroxypropyl methyl cellulose ethers useful as suspending agents for suspension polymerization of vinyl chloride |
| US706829 | 1985-02-28 | ||
| US765788 | 1985-08-15 | ||
| US06/765,788 US4614545A (en) | 1985-08-15 | 1985-08-15 | Hydroxypropyl methyl cellulose thickening agents for organic liquids |
| CA000502873A CA1280413C (fr) | 1985-02-28 | 1986-02-27 | Esters de l'hydropropylmethyl cellulose utiles comme agents de mise en suspension pour la polymerisation de suspensions de chlorure de vinyle, et comme epaississants pour les liquides organiques |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000502873A Division CA1280413C (fr) | 1985-02-28 | 1986-02-27 | Esters de l'hydropropylmethyl cellulose utiles comme agents de mise en suspension pour la polymerisation de suspensions de chlorure de vinyle, et comme epaississants pour les liquides organiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1312859C true CA1312859C (fr) | 1993-01-19 |
Family
ID=27167589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000615898A Expired - Fee Related CA1312859C (fr) | 1985-02-28 | 1990-10-17 | Derives hydroxypropoxy et methoxy de la cellulose, utiles comme agents epaississants dans des liquides organiques |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1312859C (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112438945A (zh) * | 2020-11-30 | 2021-03-05 | 北方天普纤维素有限公司 | 免洗消毒凝胶及其制备方法 |
-
1990
- 1990-10-17 CA CA000615898A patent/CA1312859C/fr not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112438945A (zh) * | 2020-11-30 | 2021-03-05 | 北方天普纤维素有限公司 | 免洗消毒凝胶及其制备方法 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4614545A (en) | Hydroxypropyl methyl cellulose thickening agents for organic liquids | |
| US5292877A (en) | Cellulose acetoacetates | |
| CA1307258C (fr) | Hydroxycellulose a groupes carboxymethyl, hydrophobiquement modifiee (cmhmhec),et son utilisation dans des compositions de revetements protecteurs | |
| US4096326A (en) | Dihydroxypropyl cellulose | |
| AU656800B2 (en) | Adhesive stick made from starch ethers | |
| US3709876A (en) | Water soluble hydroxyethyl methyl cellulose ether thickener for latex paint | |
| DE69010350T2 (de) | Polysaccharide mit Alkaryl- oder Aralkyl- Hydrophoben und Latexzusammensetzungen, die die Polysaccharide enthalten. | |
| US3493407A (en) | Preparation of medicinal capsules from hydroxyalkylcellulose ethers | |
| US3629237A (en) | Compositions useful as enteric coatings and method for preparing acid phthalates of cellulose ethers for them | |
| CA2011848C (fr) | Ethers cellulosiques non ioniques solubles dans l'eau pour peintures | |
| JP2950868B2 (ja) | 水溶性セルロースエーテルポリマー | |
| JPH08509755A (ja) | 多糖類脂肪酸エステルの応用と製造方法 | |
| DE69820933T2 (de) | Biostabile, wässrige Lacke und Verfahren zur deren Herstellung | |
| DE1568423A1 (de) | Neuartige Hydroxypropylmethylcelluloseaether,Verfahren zur Herstellung derselben und Massen,in denen solche AEther verwendet werden | |
| JP2001520297A (ja) | 疎水変性ポリ(アセタール−またはケタール−ポリエーテル)、ポリウレタンおよびポリアクリレートの流動化ポリマー懸濁液 | |
| EP0761690A1 (fr) | Polysaccharides esters ou éther esters thermoplastiques et biodégradables résultant de la réaction avec des produits d'addition d'acide maléique | |
| US4906744A (en) | Water-soluble ethers substituted with alkenyl or alkyl succinic acid esters | |
| EP0573852B1 (fr) | Alkylhydroxyalkylcellulose contenant des groupes sulfoéthyle | |
| EP0426086A1 (fr) | Ethers de cellulose modifiés par des groupes alkylaryl hydrophobes | |
| JPS61264001A (ja) | ヒドロキシプロピルメチルセルロ−スエ−テル | |
| EP0048556B1 (fr) | Composition pâteuse contenant un hydrocolloide | |
| CA2347839A1 (fr) | Combinaisons d'epaississants associatifs et de compositions aqueuses de revetement protecteur | |
| EP0353789A1 (fr) | Hydroxypropylméthylcellulose utile comme agent épaississant pour des liquides organiques | |
| US4097667A (en) | Hydroxyalkyl cellulose ethers | |
| US5166333A (en) | Methyl hydroxypropyl cellulose ethers and a process for their production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |