GB596176A - Improvements in shellac bleaching - Google Patents
Improvements in shellac bleachingInfo
- Publication number
- GB596176A GB596176A GB18868/45A GB1886845A GB596176A GB 596176 A GB596176 A GB 596176A GB 18868/45 A GB18868/45 A GB 18868/45A GB 1886845 A GB1886845 A GB 1886845A GB 596176 A GB596176 A GB 596176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shellac
- solution
- added
- ethyl alcohol
- sodium chlorite
- 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
Links
- 229920001800 Shellac Polymers 0.000 title abstract 6
- 239000004208 shellac Substances 0.000 title abstract 6
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 title abstract 6
- 229940113147 shellac Drugs 0.000 title abstract 6
- 235000013874 shellac Nutrition 0.000 title abstract 6
- 238000004061 bleaching Methods 0.000 title abstract 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- 150000001299 aldehydes Chemical class 0.000 abstract 3
- 235000019441 ethanol Nutrition 0.000 abstract 3
- 239000003960 organic solvent Substances 0.000 abstract 3
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 abstract 3
- 229960002218 sodium chlorite Drugs 0.000 abstract 3
- HYBBIBNJHNGZAN-UHFFFAOYSA-N Furaldehyde Natural products O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 abstract 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 abstract 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 abstract 1
- 229920002866 paraformaldehyde Polymers 0.000 abstract 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
An improvement in the bleaching of shellac comprises dissolving the shellac in an organic solvent miscible with water and admixing the shellac solution with an aqueous solution of sodium chlorite; it is preferred that an aldehyde be also present. The shellac solution, with or without the aldehyde, may be added to the solution of sodium chlorite in a mixture of water in the organic solvent and the temperature should preferably not exceed 80 DEG F. An anti-chlor, e.g., equeous hydrogen peroxide, sodium hydrosulphide or oxalic acid may be added when the reaction is complete. Specified organic solvents are ethyl alcohol, methyl alcohol and acetone. Specified aldehydes are formaldehyde, acetaldehyde, paraformaldehyde, furfural and benzaldehyde. In an example orange shellac is dissolved in aqueous ethyl alcohol containing formaldehyde, added to a solution of sodium chlorite in aqueous ethyl alcohol at 75 to 80 DEG F. and hydrogen peroxide added when the reaction is complete. Specification 576,910 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US596176XA | 1944-07-21 | 1944-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB596176A true GB596176A (en) | 1947-12-30 |
Family
ID=22024120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18868/45A Expired GB596176A (en) | 1944-07-21 | 1945-07-23 | Improvements in shellac bleaching |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB596176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838255A (en) * | 2016-04-13 | 2016-08-10 | 袁春华 | Bleaching method of shellac resin |
-
1945
- 1945-07-23 GB GB18868/45A patent/GB596176A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838255A (en) * | 2016-04-13 | 2016-08-10 | 袁春华 | Bleaching method of shellac resin |
| CN105838255B (en) * | 2016-04-13 | 2019-02-12 | 金华巨信实业有限公司 | A kind of method for bleaching of lac resin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB596176A (en) | Improvements in shellac bleaching | |
| GB568914A (en) | Manufacture of polyvinyl acetal resins | |
| GB921071A (en) | Subbing layer for hydrophobic, dimensionally stable, inert-surfaced filmbase | |
| GB575173A (en) | Improvements in the production of chlorine dioxide | |
| GB918050A (en) | Improvements in and relating to anchoring surface coatings to cellulosic surfaces | |
| ES296037A1 (en) | Procedure for the preparation of an aqueous dispersion of a macromolecular substance in water (Machine-translation by Google Translate, not legally binding) | |
| GB698138A (en) | Process for producing trinitroalcohols and esters thereof | |
| GB1082364A (en) | Method for the preparation of linalool | |
| GB805877A (en) | Process for the production of 2, 3, 5, 6-tetrahydro-1-imidaz (1, 2-a) imidazole | |
| GB1066055A (en) | Preparation of organic derivatives of hydrazine | |
| SU126263A1 (en) | Method of converting polyvinyl alcohol to an insoluble product | |
| GB711307A (en) | Improvements in or relating to a new derivative of ª -pyridine aldehyde | |
| GB1029448A (en) | Process for the production of hydroxyl group-containing 1,4-dichloroanthraquinones | |
| Abe | Absorption Spectra of Unstable Colored Intermediates from Picryl Chloride by the Action of Sodium Hydroxide | |
| GB705195A (en) | Improvements relating to the oxidation of substituted cyclic compounds | |
| GB568113A (en) | Process of making methylene-bis-4-hydroxycoumarin | |
| GB1110951A (en) | Method of preparation of ammonium phosphotungstate and product obtained | |
| GB291131A (en) | An improved process for the production of benzanthrone derivatives | |
| Urushibara et al. | A Note on the Cannizzaro Reaction | |
| GB847645A (en) | Improvements in or relating to the manufacture of 5-nitro-furan derivatives | |
| GB594293A (en) | Improvements relating to the preparation of 3-chloro-7-methoxy-9-(ª€-diethylamino-ª‡-m | |
| GB807985A (en) | Improvements in or relating to chemical compounds | |
| ES276180A1 (en) | A procedure for the preparation of formaldehyde (Machine-translation by Google Translate, not legally binding) | |
| GB566091A (en) | Preparation of sulphonyl guanylureas | |
| GB569812A (en) | Improvements in the manufacture of pentaerythritol tetranitrate in a granular form |