IT1054582B - Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma - Google Patents

Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma

Info

Publication number
IT1054582B
IT1054582B IT1974376A IT1974376A IT1054582B IT 1054582 B IT1054582 B IT 1054582B IT 1974376 A IT1974376 A IT 1974376A IT 1974376 A IT1974376 A IT 1974376A IT 1054582 B IT1054582 B IT 1054582B
Authority
IT
Italy
Prior art keywords
retarding
flame
fibers
procedure
mixture
Prior art date
Application number
IT1974376A
Other languages
English (en)
Original Assignee
Celanese Corp
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 to US05/470,420 priority Critical patent/US4035542A/en
Application filed by Celanese Corp filed Critical Celanese Corp
Priority to IT1974376A priority patent/IT1054582B/it
Priority to CA244,808A priority patent/CA1084659A/en
Priority to DE19762604826 priority patent/DE2604826A1/de
Priority to NL7601545A priority patent/NL7601545A/xx
Priority to FR7604223A priority patent/FR2341000A1/fr
Priority to JP1500976A priority patent/JPS5299399A/ja
Application granted granted Critical
Publication of IT1054582B publication Critical patent/IT1054582B/it

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/667—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing phosphorus in the main chain
    • D06M15/673—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing phosphorus in the main chain containing phosphorus and nitrogen in the main chain
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • 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
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/435—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S260/00—Chemistry of carbon compounds
    • Y10S260/24—Flameproof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/3171—Strand material is a blend of polymeric material and a filler material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3976—Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]
    • Y10T442/3984—Strand is other than glass and is heat or fire resistant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/444—Strand is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Fireproofing Substances (AREA)
IT1974376A 1974-05-16 1976-01-30 Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma IT1054582B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US05/470,420 US4035542A (en) 1974-05-16 1974-05-16 Flame retardant fiber blend containing fibers which if present apart from the admixture undergo burning
IT1974376A IT1054582B (it) 1974-05-16 1976-01-30 Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma
CA244,808A CA1084659A (en) 1974-05-16 1976-02-02 Flame retardant fibers
DE19762604826 DE2604826A1 (de) 1974-05-16 1976-02-07 Flammwidrige fasergemische, ihre herstellung und verwendung
NL7601545A NL7601545A (nl) 1974-05-16 1976-02-16 Werkwijze voor het vlamvertragend maken van afzonderlijke vezels.
FR7604223A FR2341000A1 (fr) 1974-05-16 1976-02-16 Fibres retardant la propagation d'une flamme et leur obtention
JP1500976A JPS5299399A (en) 1974-05-16 1976-02-16 Fire retarding fiber

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US05/470,420 US4035542A (en) 1974-05-16 1974-05-16 Flame retardant fiber blend containing fibers which if present apart from the admixture undergo burning
IT1974376A IT1054582B (it) 1974-05-16 1976-01-30 Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma
CA244,808A CA1084659A (en) 1974-05-16 1976-02-02 Flame retardant fibers
DE19762604826 DE2604826A1 (de) 1974-05-16 1976-02-07 Flammwidrige fasergemische, ihre herstellung und verwendung
NL7601545A NL7601545A (nl) 1974-05-16 1976-02-16 Werkwijze voor het vlamvertragend maken van afzonderlijke vezels.
FR7604223A FR2341000A1 (fr) 1974-05-16 1976-02-16 Fibres retardant la propagation d'une flamme et leur obtention
JP1500976A JPS5299399A (en) 1974-05-16 1976-02-16 Fire retarding fiber

Publications (1)

Publication Number Publication Date
IT1054582B true IT1054582B (it) 1981-11-30

Family

ID=27560879

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1974376A IT1054582B (it) 1974-05-16 1976-01-30 Mescolanza di fibre ritardante la la fiamma e procedimento per rendere fibre singole ritardanti la fiamma

Country Status (7)

Country Link
US (1) US4035542A (it)
JP (1) JPS5299399A (it)
CA (1) CA1084659A (it)
DE (1) DE2604826A1 (it)
FR (1) FR2341000A1 (it)
IT (1) IT1054582B (it)
NL (1) NL7601545A (it)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151322A (en) * 1974-05-16 1979-04-24 Celanese Corporation Production of flame retardant fiber blend having desirable textile properties comprising polyester and cotton fibers
JPS52151346A (en) * 1976-06-11 1977-12-15 Teijin Ltd Flame-retardant polyester compositions
JPS536617A (en) * 1976-07-07 1978-01-21 Kohjin Co Ltd Composite fibers
US4325865A (en) * 1977-11-02 1982-04-20 Monsanto Company Flame retardant resin compositions
JPH0657912B2 (ja) * 1984-03-16 1994-08-03 東レ株式会社 難燃性繊維複合体
JP2593989B2 (ja) * 1984-10-05 1997-03-26 鐘淵化学工業株式会社 インテリア繊維製品
EP0183014B1 (en) * 1984-10-05 1994-02-02 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Flame-retarded fiber blend
JPS6189339A (ja) * 1984-10-05 1986-05-07 鐘淵化学工業株式会社 複合難燃繊維
JPH0694500B2 (ja) * 1987-10-02 1994-11-24 ポリプラスチックス株式会社 難燃性改良成形用熱可塑性ポリエステル樹脂の製造法
JP2593988B2 (ja) * 1991-11-08 1997-03-26 鐘淵化学工業株式会社 衣料用繊維製品
JP2505352B2 (ja) * 1992-07-27 1996-06-05 鐘淵化学工業株式会社 複合難燃繊維
JP2550266B2 (ja) * 1992-09-01 1996-11-06 鐘淵化学工業株式会社 複合難燃繊維の製法
JP2505377B2 (ja) * 1994-07-25 1996-06-05 鐘淵化学工業株式会社 複合難燃繊維
US5912196A (en) * 1995-12-20 1999-06-15 Kimberly-Clark Corp. Flame inhibitor composition and method of application
JP3477991B2 (ja) * 1996-05-13 2003-12-10 鐘淵化学工業株式会社 耐熱性の改善された難燃性布帛
DE69715849T2 (de) * 1996-05-13 2003-09-04 Kaneka Corp Flammhemmendes gewebe
US6946412B2 (en) * 2001-05-09 2005-09-20 Glen Raven, Inc. Flame-resistant, high visibility, anti-static fabric and apparel formed therefrom
US6706650B2 (en) 2001-05-09 2004-03-16 Glen Raven, Inc. Flame-resistant and high visibility fabric and apparel formed therefrom
US6787228B2 (en) * 2001-05-09 2004-09-07 Glen Raven, Inc. Flame-resistant and high visibility fabric and apparel formed therefrom
US7419922B2 (en) * 2001-05-09 2008-09-02 Gibson Richard M Flame-resistant, high visibility, anti-static fabric and apparel formed therefrom
US8652975B1 (en) 2005-07-18 2014-02-18 Milliken & Company Flame resistant fabric
US7741233B2 (en) * 2006-08-10 2010-06-22 Milliken & Company Flame-retardant treatments for cellulose-containing fabrics and the fabrics so treated
ITMI20070035A1 (it) * 2007-01-11 2008-07-12 Bio Tex S R L Procedimento per la produzione di fibre di acetato di cellulosa resistenti al fuoco
US7713891B1 (en) * 2007-06-19 2010-05-11 Milliken & Company Flame resistant fabrics and process for making
US8012890B1 (en) 2007-06-19 2011-09-06 Milliken & Company Flame resistant fabrics having a high synthetic content and process for making
EP2185291A2 (en) * 2007-07-17 2010-05-19 Invista Technologies S.a.r.l. Knit fabrics and base layer garments made therefrom with improved thermal protective properties
US10202720B2 (en) * 2009-10-21 2019-02-12 Milliken & Company Flame resistant textile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839140A (en) * 1972-02-02 1974-10-01 Ici Ltd Flame retardant yarns
US3833685A (en) * 1972-03-10 1974-09-03 Gen Electric Flame retardant thermoplastic compositions
US3794617A (en) * 1972-03-15 1974-02-26 Emery Industries Inc Copolyester fiber compositions having improved flame retardant properties
US3763644A (en) * 1972-05-09 1973-10-09 Eastman Kodak Co Flame retardant textiles
US3883611A (en) * 1972-06-15 1975-05-13 Standard Oil Co Copolyester(ethylene terephthalate/tetramethylene dibromoterephthalate) a new block polymer
US3874157A (en) * 1973-01-30 1975-04-01 Fmc Corp Flame-retardant fiber blend
US3824213A (en) * 1973-04-16 1974-07-16 Celanese Corp Acid-interchange reaction for forming halogenated aromatic polyesters

Also Published As

Publication number Publication date
DE2604826A1 (de) 1977-08-11
CA1084659A (en) 1980-09-02
JPS5299399A (en) 1977-08-20
NL7601545A (nl) 1977-08-18
FR2341000B3 (it) 1978-11-10
FR2341000A1 (fr) 1977-09-09
US4035542A (en) 1977-07-12

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