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 materials

Info

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
Application number
GB31921/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB655677A publication Critical patent/GB655677A/en
Expired legal-status Critical Current

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.
GB31921/47A 1945-05-07 1947-12-03 Improvements in or relating to hydrophobic surface treated inorganic particles and materials Expired GB655677A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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