GB774713A - Porous materials impregnated with synthetic resin and the production thereof - Google Patents

Porous materials impregnated with synthetic resin and the production thereof

Info

Publication number
GB774713A
GB774713A GB28366/54A GB2836654A GB774713A GB 774713 A GB774713 A GB 774713A GB 28366/54 A GB28366/54 A GB 28366/54A GB 2836654 A GB2836654 A GB 2836654A GB 774713 A GB774713 A GB 774713A
Authority
GB
United Kingdom
Prior art keywords
hardening
gas
gases
impregnated
synthetic resin
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
GB28366/54A
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.)
DYNAMIT AG
Original Assignee
DYNAMIT AG
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 DYNAMIT AG filed Critical DYNAMIT AG
Publication of GB774713A publication Critical patent/GB774713A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48—Macromolecular compounds
    • C04B41/4823—Phenol-formaldehyde condensation products
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/82—Coating or impregnation with organic materials
    • C04B41/83—Macromolecular compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

Shaped bodies of graphite or carbon, are impregnated with hardenable synthetic resin in a liquid form and then submitted to the action of a gaseous hardening agent which hardens the resin without the application of heat. The treatment may be commenced with hardening gas diluted with inert gas so as to avoid temperature increases due to the heat of reaction set up in the hardening. After the formation of an outer shell, impermeable to liquid but permeable to gases, the gas concentration may be increased. The diffusion may be promoted by alternate reductions and increases in the pressure of the gas. The water forming during the hardening diffuses to the surface of the workpiece and evaporates into the treatment gas whence it may be continuously extracted. Acid reacting gases may be employed for hardening such as halogens or hydrogen halides. In an example, shaped graphite bodies are degassed in vacuo, impregnated with a mixture of phenol-formaldehyde resin and furfural adjusted to a viscosity of about 10CP and then allowed to dry in the air. The articles are then exposed to the action of hydrogen chloride gas in a gassing chamber. Other gases which may be employed are hydrogen bromide, sulphur dioxide or chlorine.
GB28366/54A 1953-10-05 1954-10-01 Porous materials impregnated with synthetic resin and the production thereof Expired GB774713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE774713X 1953-10-05

Publications (1)

Publication Number Publication Date
GB774713A true GB774713A (en) 1957-05-15

Family

ID=6686133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28366/54A Expired GB774713A (en) 1953-10-05 1954-10-01 Porous materials impregnated with synthetic resin and the production thereof

Country Status (1)

Country Link
GB (1) GB774713A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126296A (en) * 1964-03-24 Purification at
DE1213333B (en) * 1959-08-28 1966-03-24 Gen Electric Co Ltd Process for the production of a molded body from carbon of low permeability and high purity
DE1230344B (en) * 1961-09-25 1966-12-08 Armour Res Foundation Of Jllin Process for producing carbon structures, such as carbon or graphite electrodes
DE1244037B (en) * 1957-03-08 1967-07-06 Union Carbide Corp Process for reducing the permeability of carbon stones
DE1265026B (en) * 1957-11-28 1968-03-28 Atomic Energy Authority Uk Process to increase the tightness of hollow, porous objects made of carbon or graphite
DE1471493B1 (en) * 1959-02-06 1970-06-11 Atomic Energy Authority Uk Process to increase the tightness of hollow, porous objects made of carbon or graphite
US4082661A (en) * 1974-08-01 1978-04-04 Sumitomo Durez Company, Ltd. Activated carbon and preparation thereof
EP0370799A1 (en) * 1988-11-23 1990-05-30 Union Carbide Corporation Method for sealing carbon and graphite surfaces
US7993322B2 (en) 2003-12-15 2011-08-09 Kimberly-Clark Worldwide, Inc. Absorbent garment having outer shell and adjustable absorbent assembly therein

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126296A (en) * 1964-03-24 Purification at
DE1244037B (en) * 1957-03-08 1967-07-06 Union Carbide Corp Process for reducing the permeability of carbon stones
DE1265026B (en) * 1957-11-28 1968-03-28 Atomic Energy Authority Uk Process to increase the tightness of hollow, porous objects made of carbon or graphite
DE1471493B1 (en) * 1959-02-06 1970-06-11 Atomic Energy Authority Uk Process to increase the tightness of hollow, porous objects made of carbon or graphite
DE1213333B (en) * 1959-08-28 1966-03-24 Gen Electric Co Ltd Process for the production of a molded body from carbon of low permeability and high purity
DE1230344B (en) * 1961-09-25 1966-12-08 Armour Res Foundation Of Jllin Process for producing carbon structures, such as carbon or graphite electrodes
US4082661A (en) * 1974-08-01 1978-04-04 Sumitomo Durez Company, Ltd. Activated carbon and preparation thereof
EP0370799A1 (en) * 1988-11-23 1990-05-30 Union Carbide Corporation Method for sealing carbon and graphite surfaces
US7993322B2 (en) 2003-12-15 2011-08-09 Kimberly-Clark Worldwide, Inc. Absorbent garment having outer shell and adjustable absorbent assembly therein

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