FR978870A - Procédé de fabrication de produits tubulaires à parois minces et appareillage en permettant la mise en oeuvre - Google Patents

Procédé de fabrication de produits tubulaires à parois minces et appareillage en permettant la mise en oeuvre

Info

Publication number
FR978870A
FR978870A FR978870DA FR978870A FR 978870 A FR978870 A FR 978870A FR 978870D A FR978870D A FR 978870DA FR 978870 A FR978870 A FR 978870A
Authority
FR
France
Prior art keywords
implementation
manufacture
thin walls
tubular products
equipment allowing
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
Other languages
English (en)
Inventor
James Bailey
Clarence G Reber
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.)
Plax Corp
Original Assignee
Plax 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
Application filed by Plax Corp filed Critical Plax Corp
Application granted granted Critical
Publication of FR978870A publication Critical patent/FR978870A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B5/00—Permanently attaching together sheets, quires or signatures otherwise than by stitching
    • B42B5/08—Permanently attaching together sheets, quires or signatures otherwise than by stitching by finger, claw or ring-like elements passing through the sheets, quires or signatures
    • B42B5/10—Permanently attaching together sheets, quires or signatures otherwise than by stitching by finger, claw or ring-like elements passing through the sheets, quires or signatures the elements being of castellated or comb-like form
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/80—Masked polyisocyanates
    • C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
    • C08G18/8048—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/34
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/16—Polyester-imides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/73—Processes of stretching
    • 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
    • Y10T137/00—Fluid handling
    • Y10T137/4456—With liquid valves or liquid trap seals
    • Y10T137/4643—Liquid valves
    • Y10T137/4658—With auxiliary means for varying liquid level

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR978870D 1948-01-17 1949-01-12 Procédé de fabrication de produits tubulaires à parois minces et appareillage en permettant la mise en oeuvre Expired FR978870A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US293648 US2529897A (en) 1948-01-17 1948-01-17 Process of and apparatus for manufacturing thin wall tubing

Publications (1)

Publication Number Publication Date
FR978870A true FR978870A (fr) 1951-04-19

Family

ID=26214747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978870D Expired FR978870A (fr) 1948-01-17 1949-01-12 Procédé de fabrication de produits tubulaires à parois minces et appareillage en permettant la mise en oeuvre

Country Status (6)

Country Link
US (1) US2529897A (fr)
BE (1) BE486783A (fr)
CH (1) CH279393A (fr)
FR (1) FR978870A (fr)
GB (1) GB664412A (fr)
NL (1) NL73719C (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125619A (en) * 1964-03-17 Forming plastic containers
US2688154A (en) * 1948-10-01 1954-09-07 Huckfeldt & Thorlichen Device for extruding thin-walled tubing
US2641022A (en) * 1950-02-21 1953-06-09 Extruders Inc Method of manufacturing plastic film
NL73075C (fr) * 1951-05-22 1900-01-01
DE932866C (de) * 1952-02-29 1955-09-12 Basf Ag Vorrichtung zur kontinuierlichen Herstellung von kalibrierten Profilen
US2753596A (en) * 1952-06-07 1956-07-10 Plax Corp Method and apparatus for making plastic tubing
US2922194A (en) * 1952-10-28 1960-01-26 British Celanese Process for the manufacture of selfsupporting tubes of thermoplastic material
US2834054A (en) * 1953-05-27 1958-05-13 Union Carbide Corp Process for extruding polychlorotrifluoroethylene
US2763029A (en) * 1953-06-19 1956-09-18 Jr Rees E Tulloss Method of producing an optically clear polyethylene film
US2952872A (en) * 1954-02-08 1960-09-20 Ici Ltd Production of film
DE1016009B (de) * 1954-07-15 1957-09-19 Anton Reifenhaeuser Fa Verfahren zum Strangpressen von Hohlkoerpern aus thermoplastischem Kunststoff
DE1013865B (de) * 1955-07-14 1957-08-14 Kurt Hartmann Spritzkopf zur Herstellung von Schlauchfolien
US2824337A (en) * 1955-07-28 1958-02-25 Du Pont Circular extrusion die
US3068517A (en) * 1960-05-18 1962-12-18 Harold I Blackmore Extrusion apparatus
US3235632A (en) * 1962-04-18 1966-02-15 Dow Chemical Co Process for producing biaxially oriented thermoplastic tubular film
NL291667A (fr) * 1962-04-18 1900-01-01
US3296343A (en) * 1963-03-27 1967-01-03 Phillips Petroleum Co Method and apparatus for producing blown thermoplastic tubing
US3341888A (en) * 1963-04-18 1967-09-19 Dow Chemical Co Automatic control system and method
US3649145A (en) * 1969-04-10 1972-03-14 Dow Chemical Co Film width controller
US3835209A (en) * 1971-11-09 1974-09-10 Owens Illinois Inc Process of extruding a foamed extrudate and controlling the thickness thereof
US5756041A (en) * 1991-07-11 1998-05-26 Arruda; William C. Method and apparatus for processing blown tube films
DE19617811C1 (de) * 1996-05-03 1997-08-21 Windmoeller & Hoelscher Vorrichtung zum Flachlegen eines Folienschlauches
US6447278B1 (en) 1998-05-26 2002-09-10 Polymer Processing, Inc. Apparatus for processing blown tube films
ATE367909T1 (de) * 2003-09-27 2007-08-15 Windmoeller & Hoelscher Schlupfkupplung für bremsrollenantrieb an der flachlegung
CN109291390B (zh) * 2018-11-02 2023-11-03 江苏康宏医疗科技有限公司 止血钳、活检钳、异物钳的弹簧软管内管制备及收线装置
CN116214902B (zh) * 2023-03-31 2023-12-08 浙江创富新材料有限公司 一种ixpp发泡棉拉伸装置及其拉伸工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL37479C (fr) * 1932-10-24 1900-01-01
US2423260A (en) * 1944-12-29 1947-07-01 Extruded Plasties Inc Extrusion of tubing
US2433937A (en) * 1945-10-25 1948-01-06 Modern Plastic Machinery Corp Machine for making sheets of extruded plastics

Also Published As

Publication number Publication date
BE486783A (fr) 1949-01-31
NL73719C (nl) 1953-11-17
GB664412A (en) 1952-01-09
US2529897A (en) 1950-11-14
CH279393A (fr) 1951-11-30

Similar Documents

Publication Publication Date Title
FR978870A (fr) Procédé de fabrication de produits tubulaires à parois minces et appareillage en permettant la mise en oeuvre
FR1169087A (fr) Procédé pour la teinture permanente des matières kératiniques et produits destinés à sa mise en oeuvre
CH271376A (fr) Procédé pour la fabrication en continu de superpolyamides et appareillage pour la mise en oeuvre de ce procédé.
FR986585A (fr) Procédé pour la fabrication de profilés en matière plastique et appareillage pour sa mise en oeuvre
FR1071307A (fr) Procédé et appareil pour la fabrication de produits en béton
FR986485A (fr) Perfectionnements aux procédés de fabrication de joints d'étanchéité, appareillage permettant la mise en oeuvre de ce procédé et produits en résultant
FR1004361A (fr) Produits de forme allongée et à section variable, procédé et appareil pour leur fabrication
FR1072416A (fr) Procédé pour la fabrication de tubes composites et produits obtenus
FR995603A (fr) Procédé de fabrication d'agglomérés pour la construction et appareillage en permettant la mise en oeuvre
FR999801A (fr) Procédé et installation pour la fabrication de produits granulés et produits en résultant
FR1027716A (fr) Procédé et installation pour la fabrication de produits filiformes marqués hélicoïdalement
FR1005677A (fr) Procédé pour la fabrication de produits alimentaires
FR927526A (fr) Procédé et appareil pour la fabrication de fils synthétiques et produits analogues
FR1005671A (fr) Matériau métallique et procédé pour sa fabrication
FR969120A (fr) Procédé de construction rationnel des tours en béton armé à parois de révolution et produits en résultant
FR963804A (fr) Procédé de fabrication de produits synthétiques
FR59798E (fr) Procédé pour obtenir des produits utilisables à la préparation de pellicules
FR1017469A (fr) Procédé pour la production de produits antibiotiques et produits en résultant
FR919094A (fr) Procédé et appareil pour la fabrication de matières réfractaires ainsi que produits industriels nouveaux qui en résultent
FR944590A (fr) Procédé pour la fabrication de staff insonore et produit en résultant
FR1010892A (fr) Procédé pour la production de trichlorobenzène et de dichlorophénols
FR947916A (fr) Procédé pour la fabrication de tubes en papier et analogue et appareil pour la mise en oeuvre de ce procédé
FR1008578A (fr) Procédé pour la fabrication de produits intermédiaires et de matières colorantes de la série benzanthronique
FR948112A (fr) Procédé pour la fabrication des briques et produits céramiques en partant de la latérite
FR921687A (fr) Procédé et appareil pour la fabrication de filaments effilés et produits en résultant