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GB921236A - Improvements in or relating to the production of low permeability carbon - Google Patents

Improvements in or relating to the production of low permeability carbon

Info

Publication number
GB921236A
GB921236A GB2944659A GB2944659A GB921236A GB 921236 A GB921236 A GB 921236A GB 2944659 A GB2944659 A GB 2944659A GB 2944659 A GB2944659 A GB 2944659A GB 921236 A GB921236 A GB 921236A
Authority
GB
United Kingdom
Prior art keywords
carbon
volatile matter
low permeability
produced
polymer
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
GB2944659A
Inventor
Herbert Lawrence Rivington
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB2944659A priority Critical patent/GB921236A/en
Publication of GB921236A publication Critical patent/GB921236A/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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/524—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Low permeability carbon, i.e. carbon of permeability such that the volume of helium which can pass through one centimetre cube of the carbon in one second under a pressure difference of one atmosphere is not greater than 10-6ml., is produced by heating a polymer which has been formed from a polymerizable monomeric cyclic carbon-containing compound at a sufficiently high temperature and for a sufficient length of time to cause the polymer to decompose completely into carbon and volatile matter and to drive off the volatile matter. Suitable polymers are those produced from furfuryl alcohol, furfural, furane, coumarone, indene, cyclopentadiene and mixtures thereof. Shaped carbon bodies of low permeability may be produced by polymerizing or partly polymerizing a polymerizable monomeric cyclic carbon-containing compound or mixture of such compounds under heat and pressure, arresting the polymerization process when the material is sufficiently plastic to mould, moulding the material to the desired shape, completing the polymerization process if necessary, and heating the polymerized material at a sufficiently high temperature and for a sufficient length of time to cause it to decompose completely into carbon and volatile matter and to drive off the volatile matter.
GB2944659A 1959-08-28 1959-08-28 Improvements in or relating to the production of low permeability carbon Expired GB921236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2944659A GB921236A (en) 1959-08-28 1959-08-28 Improvements in or relating to the production of low permeability carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2944659A GB921236A (en) 1959-08-28 1959-08-28 Improvements in or relating to the production of low permeability carbon

Publications (1)

Publication Number Publication Date
GB921236A true GB921236A (en) 1963-03-20

Family

ID=10291692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2944659A Expired GB921236A (en) 1959-08-28 1959-08-28 Improvements in or relating to the production of low permeability carbon

Country Status (1)

Country Link
GB (1) GB921236A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355527A (en) * 1964-07-07 1967-11-28 Hitachi Ltd Process for manufacturing carbon products
DE1264312B (en) * 1963-11-05 1968-03-21 Japan Atomic Energy Res Inst Process for the production of nuclear fuel elements
US4417872A (en) 1982-02-01 1983-11-29 Energy Research Corporation Heat treating
EP0188637A1 (en) * 1985-01-18 1986-07-30 SIGRI GmbH Process for producing vitreous carton bodies
EP0197176A1 (en) * 1985-04-10 1986-10-15 SIGRI GmbH Process for making vitreous carbon bodies

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264312B (en) * 1963-11-05 1968-03-21 Japan Atomic Energy Res Inst Process for the production of nuclear fuel elements
US3355527A (en) * 1964-07-07 1967-11-28 Hitachi Ltd Process for manufacturing carbon products
US4417872A (en) 1982-02-01 1983-11-29 Energy Research Corporation Heat treating
EP0188637A1 (en) * 1985-01-18 1986-07-30 SIGRI GmbH Process for producing vitreous carton bodies
US4698189A (en) * 1985-01-18 1987-10-06 Sigri Gmbh Method for the manufacture of vitreous carbon bodies
EP0197176A1 (en) * 1985-04-10 1986-10-15 SIGRI GmbH Process for making vitreous carbon bodies

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