FR2214669A1 - Thermally/chemically resistant glassy carbon articles - by shaping, curing, and heat treating mixture of polyacetylenic aromatic cpd, and liquidizer - Google Patents

Thermally/chemically resistant glassy carbon articles - by shaping, curing, and heat treating mixture of polyacetylenic aromatic cpd, and liquidizer

Info

Publication number
FR2214669A1
FR2214669A1 FR7401922A FR7401922A FR2214669A1 FR 2214669 A1 FR2214669 A1 FR 2214669A1 FR 7401922 A FR7401922 A FR 7401922A FR 7401922 A FR7401922 A FR 7401922A FR 2214669 A1 FR2214669 A1 FR 2214669A1
Authority
FR
France
Prior art keywords
mixt
glassy carbon
degrees
polyacetylenic
resistant
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.)
Granted
Application number
FR7401922A
Other languages
French (fr)
Other versions
FR2214669B3 (en
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of FR2214669A1 publication Critical patent/FR2214669A1/en
Application granted granted Critical
Publication of FR2214669B3 publication Critical patent/FR2214669B3/fr
Granted 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)
  • Carbon And Carbon Compounds (AREA)
  • Ceramic Products (AREA)

Abstract

Glassy carbon articles e.g. extrudates and mouldings, are produced by (a) forming a mixt. of (I) a prepolymer of a polyacetylenic aromatic cpd. esp. diethynylbenzene and (II) a liquidiser for (I), (b) converting the mixt. to the desired shape at 40-200 degrees C, (c) heating the shaped mixt. at 100-300 degrees C in order to cure the mixt. and (d) converting the cured mixt. into the glassy carbon state by heating in an inert atmos. at a temp. increasing progressively to a value between 450 degrees C and 3000 degrees C. (I) has an av. mol. wt. of 900-12,000 a ratio of aromatic protons to olefinic protons >2.4, and contains 5-20 wt. % acetylenic groups, relative to wt. of prepolymer. There is no release of gas during the curing operation which can be effected simply by heating. The cured pdts are hard, rigid, resistant to abrasion, infusible and insoluble, resistant to attack under oxidising conditions at elevated temp. and resistant to attack by strong acids and conc. alkalis.
FR7401922A 1973-01-22 1974-01-21 Thermally/chemically resistant glassy carbon articles - by shaping, curing, and heat treating mixture of polyacetylenic aromatic cpd, and liquidizer Granted FR2214669A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32577573A 1973-01-22 1973-01-22

Publications (2)

Publication Number Publication Date
FR2214669A1 true FR2214669A1 (en) 1974-08-19
FR2214669B3 FR2214669B3 (en) 1976-11-05

Family

ID=23269399

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7401922A Granted FR2214669A1 (en) 1973-01-22 1974-01-21 Thermally/chemically resistant glassy carbon articles - by shaping, curing, and heat treating mixture of polyacetylenic aromatic cpd, and liquidizer

Country Status (7)

Country Link
JP (1) JPS49109286A (en)
BE (1) BE809932A (en)
BR (1) BR7400436D0 (en)
DE (1) DE2401797A1 (en)
FR (1) FR2214669A1 (en)
IT (1) IT1003447B (en)
NL (1) NL7400846A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680011A1 (en) * 1991-08-02 1993-02-05 Fort Fibres Optiques Rech Tec Optical fibres which include a glassy carbon layer and method of applying this coating

Also Published As

Publication number Publication date
DE2401797A1 (en) 1974-07-25
BE809932A (en) 1974-05-16
FR2214669B3 (en) 1976-11-05
NL7400846A (en) 1974-07-24
IT1003447B (en) 1976-06-10
JPS49109286A (en) 1974-10-17
BR7400436D0 (en) 1974-08-22

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Legal Events

Date Code Title Description
ST Notification of lapse