GB1232461A – – Google Patents
GB1232461A – – Google Patents
Info
Publication number
GB1232461A
GB1232461A
GB1081968A
GB1232461DA
GB1232461A
GB 1232461 A
GB1232461 A
GB 1232461A
GB 1081968 A
GB1081968 A
GB 1081968A
GB 1232461D A
GB1232461D A
GB 1232461DA
GB 1232461 A
GB1232461 A
GB 1232461A
Authority
GB
United Kingdom
Prior art keywords
fibre
bed
fluidized bed
rollers
temperature
Prior art date
1968-03-06
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
GB1081968A
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.)
1968-03-06
Filing date
1968-03-06
Publication date
1971-05-19
1968-03-06
Application filed
filed
Critical
1971-05-19
Publication of GB1232461A
publication
Critical
patent/GB1232461A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
D—TEXTILES; PAPER
D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
D01F9/32—Apparatus therefor
D—TEXTILES; PAPER
D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
Abstract
1,232,461. Carbon fibres. ROLLS-ROYCE Ltd. 6 March, 1969 [6 March, 1968; 15 Oct., 1968], Nos. 10819/68 and 48734/68. Heading C1A. In the manufacture of carbon fibres by the pyrolysis of a polymeric fibre, at least one step of the production process involves the heat treatment of the fibre in a fluidized bed. As shown in Fig. 1, the fibre which may be a sheet of aligned fibres passes from a storage spool 10 through a driving arrangement of rollers 12 into chamber 14 which contains a bed of solid particulate material, e.g. hollow alumina ballotini, which is fluidized by a gas stream passing from inlet 16 through perforated distributing plate 15. In the bed the fibre passes round rollers 19 to give a path length sufficient to achieve the desired treatment time, e.g. one half to 3 hours, and exits from the chamber through a further arrangement of driving rollers 20 and then through a carbonizing furnace 22 before being wound on to collecting spool 23. The fluidizing bed is heated, e.g. by electric resistance heaters 18, and the fluidizing gas is such as to react with the fibre, e.g. air or oxygen, the temperature of such an oxidizing treatment prior to carbonization being between 200‹ and 400‹ C. If desired the fibre may be treated in such a fluidized bed after being carbonized when the surface of the fibre is etched, e.g. oxidized, to improve the strength of the fibre. The temperature of such a post carbonization treatment is preferably between 400‹ and 500‹ C. The entrance duct 30 to the fluidized bed may be so arranged that a temperature gradient is established along the duct. In an alternative embodiment, instead of passing through the fluidized bed, the fibre may be passed along the surface of a shallow fluidized bed. The arrangement of rollers 12 and 21 may be such that the fibre is stretched whilst passing through the bed. The fluidizing gas in the post carbonization treatment may include a proportion of chlorine. The fibres treated may be polyacrylonitrile, copolymers thereof, cellulose or a polyamide. In the high temperature bed, particles of silica sand may be used.
GB1081968A
1968-03-06
1968-03-06
Expired
GB1232461A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1081968
1968-03-06
Publications (1)
Publication Number
Publication Date
GB1232461A
true
GB1232461A
(en)
1971-05-19
Family
ID=9974885
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1081968A
Expired
GB1232461A
(en)
1968-03-06
1968-03-06
Country Status (3)
Country
Link
US
(1)
US3615212A
(en)
BE
(1)
BE729382A
(en)
GB
(1)
GB1232461A
(en)
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4285831A
(en)
*
1976-10-05
1981-08-25
Toho Beslon Co., Ltd.
Process for production of activated carbon fibers
JPS5836095B2
(en)
*
1976-10-05
1983-08-06
東邦ベスロン株式会社
Activated carbon fiber manufacturing method
AU1147597A
(en)
*
1995-12-07
1997-06-27
Sandia Corporation
Methods of preparation of carbon materials for use as electrodes in rechargeable batteries
US8117815B2
(en)
*
2005-11-16
2012-02-21
Ladama, Llc
Fire retardant compositions and methods and apparatuses for making the same
WO2007059510A2
(en)
*
2005-11-16
2007-05-24
Ladama, Llc
Fire retardant compositions and methods and apparatuses for making the same
US20070111000A1
(en)
*
2005-11-16
2007-05-17
Ladama, Llc A Nevada Llc
Filament networks and methods of making same for use in the manufacture of products with enhanced characteristics
US8850784B2
(en)
2005-11-16
2014-10-07
Lorica International Corporation
Fire retardant compositions and methods and apparatuses for making the same
US7937924B2
(en)
*
2005-11-16
2011-05-10
Lorica International, Inc.
Fire retardant compositions and methods and apparatuses for making the same
US20130197116A1
(en)
*
2012-01-31
2013-08-01
Jack Elijah Williams, III
Ultra High Strength Chalk Based Composition
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3011981A
(en)
*
1958-04-21
1961-12-05
Soltes William Timot
Electrically conducting fibrous carbon
GB911542A
(en)
*
1960-08-25
1962-11-28
Tokai Denkyoku Seizo Kabushiki
Improvements in or relating to the manufacture of heat resistant and corrosion resistant polyacrylonitrile fibres
US3508871A
(en)
*
1963-05-29
1970-04-28
Carborundum Co
Carbonizing fibrous materials
GB1110791A
(en)
*
1964-04-24
1968-04-24
Nat Res Dev
The production of carbon fibres
GB1180441A
(en)
*
1967-02-21
1970-02-04
Nat Res Dev
Treatment of Carbon Fibres and Composite Materials including such Fibres
1968
1968-03-06
GB
GB1081968A
patent/GB1232461A/en
not_active
Expired
1969
1969-03-05
BE
BE729382D
patent/BE729382A/xx
unknown
1969-03-05
US
US804639A
patent/US3615212A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
BE729382A
(en)
1969-08-18
US3615212A
(en)
1971-10-26
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Improvements in or relating to carbonisable fibre and carbon fibre and their production
Legal Events
Date
Code
Title
Description
1972-07-19
48R
Reference inserted (sect. 8/1949)
1972-08-23
PS
Patent sealed [section 19, patents act 1949]
1976-04-22
PLE
Entries relating assignments, transmissions, licences in the register of patents
1977-10-05
PLNP
Patent lapsed through nonpayment of renewal fees
