US2181884A - Process of carroting - Google Patents
Process of carroting Download PDFInfo
- Publication number
- US2181884A US2181884A US167856A US16785637A US2181884A US 2181884 A US2181884 A US 2181884A US 167856 A US167856 A US 167856A US 16785637 A US16785637 A US 16785637A US 2181884 A US2181884 A US 2181884A
- Authority
- US
- United States
- Prior art keywords
- acid
- carroting
- fur
- hair
- fibres
- 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 - Lifetime
Links
- 238000009953 carroting Methods 0.000 title description 27
- 238000000034 method Methods 0.000 title description 24
- 230000008569 process Effects 0.000 title description 21
- 210000004209 hair Anatomy 0.000 description 34
- 239000002253 acid Substances 0.000 description 24
- 244000000626 Daucus carota Species 0.000 description 17
- 235000002767 Daucus carota Nutrition 0.000 description 17
- 239000000835 fiber Substances 0.000 description 15
- 238000009950 felting Methods 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 12
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 12
- 150000007513 acids Chemical class 0.000 description 12
- 229910017604 nitric acid Inorganic materials 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 150000002148 esters Chemical class 0.000 description 11
- 230000003301 hydrolyzing effect Effects 0.000 description 8
- DHRLEVQXOMLTIM-UHFFFAOYSA-N phosphoric acid;trioxomolybdenum Chemical compound O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O DHRLEVQXOMLTIM-UHFFFAOYSA-N 0.000 description 8
- 102000004169 proteins and genes Human genes 0.000 description 8
- 108090000623 proteins and genes Proteins 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- IYDGMDWEHDFVQI-UHFFFAOYSA-N phosphoric acid;trioxotungsten Chemical compound O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.OP(O)(O)=O IYDGMDWEHDFVQI-UHFFFAOYSA-N 0.000 description 7
- 239000000701 coagulant Substances 0.000 description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 235000011149 sulphuric acid Nutrition 0.000 description 5
- 235000011167 hydrochloric acid Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910001987 mercury nitrate Inorganic materials 0.000 description 4
- DRXYRSRECMWYAV-UHFFFAOYSA-N nitrooxymercury Chemical compound [Hg+].[O-][N+]([O-])=O DRXYRSRECMWYAV-UHFFFAOYSA-N 0.000 description 4
- -1 sulpho ester Chemical class 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000001117 sulphuric acid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 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 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- ORMNPSYMZOGSSV-UHFFFAOYSA-N dinitrooxymercury Chemical compound [Hg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ORMNPSYMZOGSSV-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 229960002969 oleic acid Drugs 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002730 mercury Chemical class 0.000 description 1
- BDRTVPCFKSUHCJ-UHFFFAOYSA-N molecular hydrogen;potassium Chemical compound [K].[H][H] BDRTVPCFKSUHCJ-UHFFFAOYSA-N 0.000 description 1
- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical compound [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 230000000803 paradoxical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C3/00—Treatment of animal material, e.g. chemical scouring of wool
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/14—Wool
- D06P3/20—Wool using mordant dyes using metallisable dyes
Definitions
- This invention relates to the treating of animal fibres and the like, such as fur or wool, and pertains particularly to the process of carroting the same, and the present application constitutes a-continuation in part of application Serial Number 34,299, filed August 1, 1935.
- the present method used almost exclusively for the carroting of fur involves the use of the mercury salt, mercury nitrate.
- This salt in solution is applied with a brush or by the use of a carroting machine to the fur or fur fibre while intact with the skin and these skins are dried eitherby heat or at normal'room temperature with a resultant volatilization of a certain amount of mercury.
- a great health hazard exists for those persons who have to carry out the various steps or operations necessary in the felting of the fibreand the subsequent treatment of the same.
- the present invention has for its primary object to provide a process for the carroting of animal fur fibre and the like, whereby'the same will be afiected in the same way as by the use of mercury nitrate solution so that the desired felting properties are imparted thereto, without using poisonous substances or substances which will have a detrimental effect upon persons required to handle or work with the felt or upon users of the felt material after the same is made up into hats or other bodies.
- Another object of the invention is to impart to the fur and hair fibre the same properties that are characteristic of the "mercury carrot without the use of mercury nitrate.
- a still further object of the invention is to provide a process which in addition to imparting the desired felting qualities to the fur, hair fibre or wool, will not cause the same to deteriorate after a long period of time; may be used upon white fur without causing the same to discolor; will facilitate the quick wetting down and fast shrinking of the fur and hair fibre in the starting of felting as well as in the sizing; will cause the fur and hair fibre'to take an even color without showing an underground or under cast when placed in a dye bath, and will cause the fur and hair fibre to form a stronger, tighter, and more even f lt than can be manufactured under present processes.
- the protein coagulants which Ii have discovered to be entirely effective for carroting purposes and which avoid the objection to theuse of mercury nitrate and other mercury solutions, are phosphotuhgstic acid and phosphomolybdic acid, soluble salts and esters of the same, and derivatives thereof such as chloro-phosphotungstic and chloro phosphomolybdic acids, aceto-phosphotungstic and aceto-phosphomolybdie acids.
- These products possess an enhanced felting action and are without poisonous properties and if left on fur or like fibre show no particular deteriorating action or any objectionable effect upon the health of the user. They also exceed mercuric nitrate in protein coagulating power.
- the coagulants may be used either alone or in combination with one another, or in conjunction with hydrolytic agents such as inorganic acids having a pH value lower than 3.0 or a combination of organic acids and inorganic acids in which the pH of the mixture is lower than 3.0 and such a combination may be made up with such acids as citric acid, oxalic acid, tartaric acid, nitric acid, sulphuric acid, hydrochloric acid, hydrobromic acid and perchloric acid and these may be used with or without hydrogen peroxide or equivalent agents.
- the method involves a simultaneous solubilization and hydrolysis of fur fibres with a protein coagulation action.
- the h joint and paradoxical action sharpens and deunder the conditions of the carroting operation, pH values lower than 3.0 or higher than 13.0. This includes the acids named for the lower pH .range and the hydroxides of sodium or potasslum in the upper.
- nitric acid 40 Baum or the same solution may be made substituting an equivalent amount of phosphomolybdic acid.
- hydrochloric or sulphuric acids or some combination of the same may be substituted or the nitric acid may be partially replaced by some combination of the same, so long as the pH of the mixture is lower than 3.0.
- HCl or H2804 may be used, with or without H202.
- I may take 40 volumes of water in which is dissolved 3 ounces of sodium or potassium hydroxide, 1 ounce of either the tungsto or molybdo-phosphoric acid. and 1 fluid hum of hydrogen peroxide.
- the deleterious effect of the caustic alkali maybe reduced or inhibited by the addition of ,1 fiuid ounces ofglycerine or diethylene glycol without affecting adversely the carroting action of the alkali.
- the phosphotungstate ester of oleicacid may be given.
- This ester is both Water and acid soluble and it may be substituted for the phosphotungstic acid given in the example set forth,
- the phosphotungstate ester of oleic acid possesses the additional virtue of being a penetrating agent and in consequence P assures more rapid and complete penetration of an illustration, when lauryl alcohol, an example of an aliphatic alcohol, is treated with concentrated phosphoor phosphochloroor phosphoacetotungstic or molybdic acids, an ester results which possesses the same carroting potency as the unesterified acids. Those of the esters which are insoluble may be rendered soluble by esterifying in the presence of 98% sulphuric acid.
- iIclhe sulpho ester of oleochlorphosphotungstic ac Aromatic alcohols, aldehydes or halides react with phospho derivatives in much the same way as the lauryl alcohol. The solubilization of the resultant esters frequently requires or necessitates a subsequent sulfonation operation. This may be accomplished by conventional sulfonation procedures.
- tungsto-aceto-phosphoric acids in an amount suflicient to carrot the fibres, and a hydrolytic agent giving to the solution a pH value outside the limits 3.0 and 13.0.
- the process of carroting animal hair for felt making which comprises treating the same with a solution containing phosphotungstic acid in an amount sufficient to carrot the hair, and a hydrolytic agent selected from the group consisting of nitric acid, perchloric acid, hydrochloric acid, sulphuric acid and hydrobromic acid, the hydrolytic agent being in an amount sumcient to yield in the solution a pH lower than 3.0.
- the process of carroting animal hair for felt making which comprises treating the hair with the solution contaming phosphomolybdic acid in an amount sufflcient to carrot the hair, and nitric acid in an amount suflicient to yield in the solution a pH lower than 3.0.
- the process of carroting animal hair for felt making which comprises treating the hair with a solution containing phosphomolybdic acid in an amount sufllcient to carrot the hair, nitric acid, and hydrogen peroxide, the nitric acid being in an amount sufilcient to yield in the solution a pH lower than 3.0.
- the process of carroting animal hair for felt making which comprises treating the hair with, a solution containing a phosphotungstic acid in an amount suflicient to carrot the hair and nitric acid in an amount to yield in the solution a pH lower than 3.0.
- the process of carroting animal hair to felt making which comprises treating the hair with a solution containing phosphotungstic acid in an amount suificient to carrot the hair, nitric acid, and hydrogen peroxide, the nitric acid being in an amount suflicient to yield in the solution a pH lower than 3.0.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Animal Husbandry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE436039D BE436039A (enrdf_load_stackoverflow) | 1937-10-07 | ||
US167856A US2181884A (en) | 1937-10-07 | 1937-10-07 | Process of carroting |
GB23393/39A GB524736A (en) | 1937-10-07 | 1939-08-14 | Improvements in and relating to process of carroting |
FR859577D FR859577A (fr) | 1937-10-07 | 1939-08-29 | Procédé de secrétage des fibres animales telles que les poils des peaux |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US167856A US2181884A (en) | 1937-10-07 | 1937-10-07 | Process of carroting |
GB23393/39A GB524736A (en) | 1937-10-07 | 1939-08-14 | Improvements in and relating to process of carroting |
Publications (1)
Publication Number | Publication Date |
---|---|
US2181884A true US2181884A (en) | 1939-12-05 |
Family
ID=26256485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US167856A Expired - Lifetime US2181884A (en) | 1937-10-07 | 1937-10-07 | Process of carroting |
Country Status (4)
Country | Link |
---|---|
US (1) | US2181884A (enrdf_load_stackoverflow) |
BE (1) | BE436039A (enrdf_load_stackoverflow) |
FR (1) | FR859577A (enrdf_load_stackoverflow) |
GB (1) | GB524736A (enrdf_load_stackoverflow) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2582086A (en) * | 1949-12-23 | 1952-01-08 | Frank H Lee Company | Composition for carroting fur and the like |
US2944939A (en) * | 1957-02-06 | 1960-07-12 | Merck & Co Inc | Water-insoluble molybdenum salts of neomycin and process of using same in the purification of neomycin |
-
0
- BE BE436039D patent/BE436039A/xx unknown
-
1937
- 1937-10-07 US US167856A patent/US2181884A/en not_active Expired - Lifetime
-
1939
- 1939-08-14 GB GB23393/39A patent/GB524736A/en not_active Expired
- 1939-08-29 FR FR859577D patent/FR859577A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2582086A (en) * | 1949-12-23 | 1952-01-08 | Frank H Lee Company | Composition for carroting fur and the like |
US2944939A (en) * | 1957-02-06 | 1960-07-12 | Merck & Co Inc | Water-insoluble molybdenum salts of neomycin and process of using same in the purification of neomycin |
Also Published As
Publication number | Publication date |
---|---|
GB524736A (en) | 1940-08-13 |
BE436039A (enrdf_load_stackoverflow) | |
FR859577A (fr) | 1940-12-21 |
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