SE326947B - - Google Patents

Info

Publication number
SE326947B
SE326947B SE1600565A SE1600565A SE326947B SE 326947 B SE326947 B SE 326947B SE 1600565 A SE1600565 A SE 1600565A SE 1600565 A SE1600565 A SE 1600565A SE 326947 B SE326947 B SE 326947B
Authority
SE
Sweden
Prior art keywords
carbon
fibre material
fibres
fibre
heating
Prior art date
Application number
SE1600565A
Inventor
E Peters
Original Assignee
Minnesota Mining & Mfg
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
Priority claimed from US426789A external-priority patent/US3235323A/en
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of SE326947B publication Critical patent/SE326947B/xx

Links

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
    • D01F9/16—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetate

Abstract

1,125,630. Carbon fibres. MINNESOTA MINING & MFG. CO. 3' Nov., 1965 [21 Jan., 1965], No. 46564/65. Heading C1A. [Also in Divisions B5, D2 and H5] Electrically conductive carbon fibre material is made by heating regenerated cellulose fibre material impregnated with from 10 to 30% by weight of ammonium chloride to at least 230‹ C. in air or other atmosphere containing free oxygen to give an intermediate black flexible chemically combined nitrogen-containing organic fibre material which is then carbonized' without loss. of fibre identity by heating to a higher temperature than that used to give the' intermediate fibre material' in a non-oxidizing atmosphere for not longer than 30 minutes. The starting material may, be woven or non- woven fabric or a continuous filament tow and may be drawn continuously through heating zones which convert it first to the intermediate fibre material and then to. the electrically conductive carbon' fibre material without intermediate cooling between the heating zones. The non-oxidizing atmosphere may be-nitrogen. A carbonizing temperature of 1300‹ C. is preferably reached and the carbon content increases to at least 95% by weight of the fibre. A carbonizing temperature of at. least 2200‹ C. is preferably employed to obtain fibres of at least 99À5% by weight carbon... Carbon cloth made by this process may be impregnated. with a high-temperature resistant phenolic laminating varnish. and. laminated into. a. composite which is cured under heat and. pressure, and may be used. for making potentiometer elements.. Carbon fibres made by thisprocess containing. 99À5+ % carbon may be incorporated wtih 83% paper-making cellulose fibres,. 10%. asbestos. fibres to form acellulosio. electrical heating element paper.
SE1600565A 1965-01-21 1965-12-09 SE326947B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US426789A US3235323A (en) 1960-04-14 1965-01-21 Heat-resistant black fibers and fabrics derived from rayon

Publications (1)

Publication Number Publication Date
SE326947B true SE326947B (en) 1970-08-10

Family

ID=23692210

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1600565A SE326947B (en) 1965-01-21 1965-12-09

Country Status (3)

Country Link
FR (1) FR1462564A (en)
GB (1) GB1125630A (en)
SE (1) SE326947B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794422A (en) * 1972-01-24 1973-07-23 Rhone Poulenc Textile ELECTRO-CONDUCTIVE FELTS WITH GOOD MECHANICAL PROPERTIES
IT1162865B (en) * 1983-05-23 1987-04-01 Fiat Auto Spa ELECTRICALLY CONDUCTIVE FILTER PAPER AND FILTER USING SUCH PAPER

Also Published As

Publication number Publication date
FR1462564A (en) 1966-12-16
GB1125630A (en) 1968-08-28

Similar Documents

Publication Publication Date Title
GB1472432A (en) Shaped and fired refractory fibers
GB1222881A (en) Process for the preparation of carbon fibers
FR2411703A1 (en) MULTI-LAYER INSULATION MATERIAL AND ITS PRODUCTION PROCESS
ES273820A2 (en) Artificial graphite process
GB1306747A (en) Production of composite materials containing filamentary graphitic carbon
GB1049661A (en) Improvements in and relating to carbon articles
GB1259829A (en) Flame resistant cloth
GB1397059A (en) Rapid stabilization of polyacrylonitrile fibres prior to carbonization
SE326947B (en)
GB1295289A (en)
GB1190269A (en) The Manufacture of Cloth from Polymeric Fibre Material
GB1432216A (en) Process for preparing carbon fibre-reinforced polyamide resins
GB1297946A (en)
GB1232461A (en)
DE3379061D1 (en) Process for producing carbonizable oxidized fibers and carbon fibers
JPS6420132A (en) Laminate for heat insulation material and heat insulation method using same
FR2376831A1 (en) CARBON BODY AND ITS MANUFACTURING PROCESS
GB1402560A (en) Heating unit
GB982801A (en) Improvements in or relating to felts
GB1395284A (en) Process for the manufacture of carbon filaments
KR900015572A (en) Fabric Double Sided Heating Element
GB1454629A (en) Carbon fibres
GB1130304A (en) Process for manufacture of flexible graphite material from rayon cord
FR2003528A1 (en) Polymer fibres or filaments for prodn of carbon fibres
JPS5656825A (en) Prepreg sheet combined with parallel-carbon fiber sheet and glass-yarn, manufacturing apparatus thereof and lamination tube