GB655677A - Improvements in or relating to hydrophobic surface treated inorganic particles and materials - Google Patents
Improvements in or relating to hydrophobic surface treated inorganic particles and materialsInfo
- Publication number
- GB655677A GB655677A GB31921/47A GB3192147A GB655677A GB 655677 A GB655677 A GB 655677A GB 31921/47 A GB31921/47 A GB 31921/47A GB 3192147 A GB3192147 A GB 3192147A GB 655677 A GB655677 A GB 655677A
- Authority
- GB
- United Kingdom
- Prior art keywords
- powder
- tertiary
- particles
- silane
- butoxy
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/12—Treatment with organosilicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
In producing a hydrophobe or water-repellant powder, particles of an inorganic material are coated with an alkoxy silane having at least one tertiary alkoxy group and at least one hydrolysable substituent group, e.g. a halogen, amino, methoxy or ethoxy group joined to the silicon atom. The powder may be of porous particles, of particles having a large relative surface area, e.g. silica gel, diatomaceous earth, exfoliated vermiculite, fibrous asbestos, or of non-porous particles, e.g. crushed silica, zinc oxide, titanium dioxide, limestone, slate flour, powdered or spheroidized glass particles, or of water-soluble inorganic powders, e.g. ammonium chloride crystals and sodium bicarbonate. The powder is mixed with a solution of the alkoxy silane, the solvent, e.g. heptane, being evaporated and the powder further heated. A treated powder of porous particles such as diatomaceous earth may be mixed with a vulcanizable rubber latex-with or without 0.5 to 5 per cent methyl cellulose-and spread on poplin to give a porous but water-repellent cloth, or a treated powder of non-porous particles applied to a fabric base having a tacky rubber or synthetic resin composition coating on the threads insufficient to give a continuous coating. The treated powders may also be used as fillers in paints, enamels, leather-finishing compositions, or shoe polishes, and sodium bicarbonate may be treated before storage in a humid atmosphere as e.g. in fire extinguishers.ALSO:Di-tertiary-butoxy dichlorosilane is made by reacting a solution of silicon tetrachloride with tertiary butyl alcohol, in the presence of alphapicoline or pyridine as acid acceptor. Di-tertiary-butoxy diaminosilane is made by reacting a heptane solution of the di-tertiary-butoxy dichloro silane with ammonia under pressure. In this latter reaction, ammonium chloride crystals coated with the silane may be separated.ALSO:In producing a hydrophobe or water-repellent powder, particles of an inorganic material are coated with an alkoxy silane having at least one tertiary alkoxy group, and at least one hydrolysable substituent group, e.g. a halogen, amino, methoxy or ethoxy group, joined to the silicon atom. The powder may be of porous particles, or of particles having a large relative surface area, e.g. silica gel, diatomaceous earth, exfoliated vermiculite, fibrous asbestos, or of non-porous particles, e.g crushed silica, zinc oxide, titanium dioxide, limestone, slate flour, powdered or spheroidized glass particles, or of water-soluble inorganic powders, e.g. ammonium chloride crystals and sodium bicarbonate. The powder is mixed with a solution of the alkoxy silane, the solvent, e.g. heptane, being evaporated and the powder further heated. A treated powder of porous particles such as diatomaceous earth may be mixed with a vulcanizable rubber latex-with or without 0.5 to 5 per cent methyl cellulose-and spread on poplin to give a porous but water-repellent cloth, or a treated powder of non-porous particles applied to a fabric base having a tacky rubber or synthetic resin composition coating on the threads insufficient to give a continuous coating. The treated powders may also be used as fillers in paints, enamels, leather finishing compositions, or shoe polishes, and sodium bicarbonate may be treated before storage in a humid atmosphere as, e.g. in fire extinguishers. Di - tertiary - butoxy dichlorosilane is made by reacting a solution of silicon tetrachloride with tertiary butyl alcohol, in the presence of alpha-picoline or pyridine as acid acceptor, and di-tertiary-butoxy diamino silane is made by reacting a heptane solution of the di-tertiary-butoxy dichloro silane with ammonia under pressure. In this latter reaction, ammonium chloride crystals coated with the silane may be separated.ALSO:In producing a hydrophobe or water-repellant powder, particles of an inorganic material are coated with an alkoxy silane having at least one tertiary alkoxy group and at least one hydrolysable substituent group, e.g. a halogen, amino, methoxy or ethoxy group joined to the silicon atom. The powder may be of porous particles, or of particles having a large relative surface area, e.g. silica gel, diatomaceous earth, exfoliated vermiculite, fibrous asbestos, or of non-porous particles, e.g. crushed silica, zinc oxide, titanium dioxide, limestone, slate flour, powdered or spheroidized glass particles, or of water-soluble inorganic powders, e.g. ammonium chloride crystals and sodium bicarbonate. The powder is mixed with a solution of the alkoxy silane, the solvent, e.g. heptane, being evaporated and the powder further heated. A treated powder of porous particles such as diatomaceous earth may be mixed with a vulcanizable rubber latex-with or without 0.5 to 5 per cent methyl cellulose-and spread on poplin to give a porous but water-repellent cloth, or a treated powder of non-porous particles applied to a fabric base having a tacky rubber or synthetic resin composition coating on the threads insufficient to give a continuous coating. The treated powders may also be used as fillers in paints, enamels, leather finishing compositions, or shoe polishes, and sodium bicarbonate may be treated before storage in a humid atmosphere as, e.g., in fire extinguishers. Di-tertiary-butoxy dichlorosilane is made by reacting a solution of silicon tetrachloride with tertiary butyl alcohol, in the presence of alphapicoline or pyridine as acid acceptor, and di-tertiary-butoxy diamino silane is made by reacting a heptane solution of the di-tertiary-butoxy dichloro silane with ammonia under pressure. In this latter reaction, ammonium chloride crystals coated with the silane may be separated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US655677XA | 1945-05-07 | 1945-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB655677A true GB655677A (en) | 1951-08-01 |
Family
ID=22063612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31921/47A Expired GB655677A (en) | 1945-05-07 | 1947-12-03 | Improvements in or relating to hydrophobic surface treated inorganic particles and materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB655677A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416197A1 (en) * | 1977-12-23 | 1979-08-31 | Ramu Int | Graphite particles treated to give hydrophobic character - used on ski soles, recording tapes and cable insulation |
EP0216047A1 (en) * | 1985-09-18 | 1987-04-01 | The Sherwin-Williams Company | Process for producing organophilic silica |
US5124101A (en) * | 1987-03-26 | 1992-06-23 | Matsushita Electric Works, Ltd. | Method for manufacturing fine porous member |
-
1947
- 1947-12-03 GB GB31921/47A patent/GB655677A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2416197A1 (en) * | 1977-12-23 | 1979-08-31 | Ramu Int | Graphite particles treated to give hydrophobic character - used on ski soles, recording tapes and cable insulation |
EP0216047A1 (en) * | 1985-09-18 | 1987-04-01 | The Sherwin-Williams Company | Process for producing organophilic silica |
US5124101A (en) * | 1987-03-26 | 1992-06-23 | Matsushita Electric Works, Ltd. | Method for manufacturing fine porous member |
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