GB1226931A - - Google Patents

Info

Publication number
GB1226931A
GB1226931A GB86869A GB1226931DA GB1226931A GB 1226931 A GB1226931 A GB 1226931A GB 86869 A GB86869 A GB 86869A GB 1226931D A GB1226931D A GB 1226931DA GB 1226931 A GB1226931 A GB 1226931A
Authority
GB
United Kingdom
Prior art keywords
graphite
strands
mass
random
density
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
GB86869A
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 filed Critical
Publication of GB1226931A publication Critical patent/GB1226931A/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
    • C04B35/536—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 based on expanded graphite or complexed graphite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof

Abstract

1,226,931. Graphite bodies. DOW CHEMICAL CO. 7 Jan., 1969, No, 868/69. Heading C1A. Graphite bodies are prepared by compressing vermicular (expanded) graphite to form said graphite into a thin foil having a density of from 0.3 g./c.c. to 1.8 g./c.c. cutting this foil into narrow strands, intertwining these strands in a random fashion to form a random mass, and compressing such mass under a pressure of at least 30 p.s.i. (2À1 kg./cm.<SP>2</SP>) to form the desired body. The length to width ratio of the graphite strands is at least 8: 1 preferably 14: 1 to 200: 1, the density of the individual strands being from 0.5 to 1.6 g./c.c. The pressure applied to the random mass is preferably 500 p.s.i. to 50,000 p.s.i. (35 to 3500 kg./cm.<SP>2</SP>). The pressure applied may be uniaxial or isostatic. Reference has been directed by the Comptroller to Specification 1,049,588.
GB86869A 1969-01-07 1969-01-07 Expired GB1226931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB86869 1969-01-07

Publications (1)

Publication Number Publication Date
GB1226931A true GB1226931A (en) 1971-03-31

Family

ID=9711901

Family Applications (1)

Application Number Title Priority Date Filing Date
GB86869A Expired GB1226931A (en) 1969-01-07 1969-01-07

Country Status (1)

Country Link
GB (1) GB1226931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158265A (en) * 1984-05-04 1985-11-06 Philips Nv Sample carrier for flameless atomic-absorption and emission spectroscopy
US5149518A (en) * 1989-06-30 1992-09-22 Ucar Carbon Technology Corporation Ultra-thin pure flexible graphite calendered sheet and method of manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158265A (en) * 1984-05-04 1985-11-06 Philips Nv Sample carrier for flameless atomic-absorption and emission spectroscopy
US5149518A (en) * 1989-06-30 1992-09-22 Ucar Carbon Technology Corporation Ultra-thin pure flexible graphite calendered sheet and method of manufacture

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees