FR2460885B1 - Procede de thermoscellage et dispositifs de mise en oeuvre - Google Patents

Procede de thermoscellage et dispositifs de mise en oeuvre

Info

Publication number
FR2460885B1
FR2460885B1 FR7918544A FR7918544A FR2460885B1 FR 2460885 B1 FR2460885 B1 FR 2460885B1 FR 7918544 A FR7918544 A FR 7918544A FR 7918544 A FR7918544 A FR 7918544A FR 2460885 B1 FR2460885 B1 FR 2460885B1
Authority
FR
France
Prior art keywords
thermoscelling
implementing devices
implementing
devices
thermoscelling process
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
FR7918544A
Other languages
English (en)
Other versions
FR2460885A1 (fr
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.)
ATO BOUCHON RAPID
Original Assignee
ATO BOUCHON RAPID
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 ATO BOUCHON RAPID filed Critical ATO BOUCHON RAPID
Priority to FR7918544A priority Critical patent/FR2460885B1/fr
Priority to PCT/FR1980/000119 priority patent/WO1981000250A1/fr
Priority to IT49211/80A priority patent/IT1128127B/it
Priority to BE0/201375A priority patent/BE884275A/fr
Priority to ES494163A priority patent/ES494163A0/es
Publication of FR2460885A1 publication Critical patent/FR2460885A1/fr
Priority to EP80901327A priority patent/EP0032909A1/fr
Application granted granted Critical
Publication of FR2460885B1 publication Critical patent/FR2460885B1/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83421Roller, cylinder or drum types; Band or belt types; Ball types band or belt types
    • B29C66/83423Roller, cylinder or drum types; Band or belt types; Ball types band or belt types cooperating bands or belts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/84Specific machine types or machines suitable for specific applications
    • B29C66/849Packaging machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/18Applying or generating heat or pressure or combinations thereof by endless bands or chains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10Applying or generating heat or pressure or combinations thereof
    • B65B51/22Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
    • B65B51/227Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding by induction welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00Closing containers or receptacles after filling
    • B65B7/16Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842Securing closures on containers
    • B65B7/2878Securing closures on containers by heat-sealing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67BAPPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B5/00Applying protective or decorative covers to closures; Devices for securing bottle closures with wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3668Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special induction coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Package Closures (AREA)
FR7918544A 1979-07-12 1979-07-12 Procede de thermoscellage et dispositifs de mise en oeuvre Expired FR2460885B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7918544A FR2460885B1 (fr) 1979-07-12 1979-07-12 Procede de thermoscellage et dispositifs de mise en oeuvre
PCT/FR1980/000119 WO1981000250A1 (fr) 1979-07-12 1980-07-10 Machine a transfert lineaire et procede utilisant l'induction magnetique pour le bouchage des recipients
IT49211/80A IT1128127B (it) 1979-07-12 1980-07-10 Procedimento e macchina per tapparere oppure termosigillare recipienti mediante coperchietti e oppure capsule
BE0/201375A BE884275A (fr) 1979-07-12 1980-07-11 Machine à transfert linéaire et procédé mettant en oeuvre l'induction magnétique à haute fréquence destinés au bouchage des récipients
ES494163A ES494163A0 (es) 1979-07-12 1980-07-11 Procedimiento y maquina para el termosellado de una capsula o tapon de cierre sobre un recipiente
EP80901327A EP0032909A1 (fr) 1979-07-12 1981-02-09 Machine automatique a transfert lineaire de thermoscellage par induction h.f. de recipients

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7918544A FR2460885B1 (fr) 1979-07-12 1979-07-12 Procede de thermoscellage et dispositifs de mise en oeuvre

Publications (2)

Publication Number Publication Date
FR2460885A1 FR2460885A1 (fr) 1981-01-30
FR2460885B1 true FR2460885B1 (fr) 1985-10-31

Family

ID=9228002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7918544A Expired FR2460885B1 (fr) 1979-07-12 1979-07-12 Procede de thermoscellage et dispositifs de mise en oeuvre

Country Status (6)

Country Link
EP (1) EP0032909A1 (fr)
BE (1) BE884275A (fr)
ES (1) ES494163A0 (fr)
FR (1) FR2460885B1 (fr)
IT (1) IT1128127B (fr)
WO (1) WO1981000250A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593467B1 (fr) * 1986-01-27 1991-01-18 Stein Heurtey Procede et dispositif pour realiser le thermoscellage d'opercules de recipients
US4825625A (en) * 1986-12-17 1989-05-02 International Paper Company Sealing method and apparatus for high capacity aseptic form, fill, and seal machines
US4817366A (en) * 1986-12-17 1989-04-04 International Paper Company High capacity package seal, sever, and brick apparatus and method
JPH01213115A (ja) * 1988-02-09 1989-08-25 Taiyo Fishery Co Ltd レトルト用罐詰容器の真空シール方法及び装置
DE4213830A1 (de) * 1992-04-28 1993-11-04 Ahlbrandt Andreas Induktionsheizung zum erwaermen einer mit kunststoff beschichteten metallfolie

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805533A (en) * 1955-09-28 1957-09-10 Emhart Mfg Co Machines for sealing shipping cartons or the like
US3026991A (en) * 1959-11-02 1962-03-27 Lewis H Kinsley Feed screw
US3246448A (en) * 1962-01-10 1966-04-19 Anaconda Aluminum Co Container closing apparatus
US3461647A (en) * 1965-09-27 1969-08-19 Paper & Corrugated Specialties Heat sealing apparatus
US3808074A (en) * 1970-11-06 1974-04-30 United Glass Ltd Induction heat sealing of a container
US3791508A (en) * 1972-11-20 1974-02-12 Kingston Conveyors Ltd Worm conveyors
JP2892911B2 (ja) * 1993-08-03 1999-05-17 東芝電池株式会社 円筒型電池の整列装置

Also Published As

Publication number Publication date
WO1981000250A1 (fr) 1981-02-05
EP0032909A1 (fr) 1981-08-05
ES8104132A1 (es) 1981-04-01
ES494163A0 (es) 1981-04-01
BE884275A (fr) 1980-11-03
FR2460885A1 (fr) 1981-01-30
IT8049211A0 (it) 1980-07-10
IT1128127B (it) 1986-05-28

Similar Documents

Publication Publication Date Title
FR2280440A1 (fr) Appareillage electro-acoustique et procede pour sa mise en oeuvre
FR2302128A1 (fr) Appareil d'adsorption de substances nocives et procede de mise en oeuvre
FR2301119A1 (fr) Procede et appareillage pour encapsuler des cables
FR2307281A1 (fr) Procede et dispositif pour la fabrication technique de porte-objets prerevetus
BE857199A (fr) Catalyseur et procede pour la production de nitro-diphenylamines
FR2306146A1 (fr) Procede et appareillage de fluidification
CH641305B (fr) Procede d'etirage de fils synthetiques et appareil pour sa mise en oeuvre.
BE850937A (fr) Procede de decolmatage d'un filtre electromagnetique et installation de mise en oeuvre
BE866171A (fr) L-sucrose et procede pour sa production
BE859237A (fr) Procede de soudage par friction et appareil pour sa mise en oeuvre
FR2314424A1 (fr) Construction sous-marine et procede pour sa mise en oeuvre
FR2455184B1 (fr) Generateur de poussee a hydrazine et son procede de mise en oeuvre
BE801078A (fr) Procede d'enroulement de materiaux en bande et dispositif de mise en oeuvre
FR2460885B1 (fr) Procede de thermoscellage et dispositifs de mise en oeuvre
BE862061A (fr) Procede de groupage et de mise en place de briques et appareil pour la mise en oeuvre de ce procede
BE857386A (fr) Procede de fabrication de brosses et machine pour sa mise en oeuvre
FR2278811A1 (fr) Procede de tissage et appareil pour sa mise en oeuvre
BE866763A (fr) Procede de dessalement de petit-lait et installation pour la mise en oeuvre du procede
BE844067A (fr) Procede d'elimination de dechets synthetiques rayonnants et installation pour sa mise en oeuvre
FR2284900A1 (fr) Matiere de diazotypie et procede de mise en oeuvre
BE861107A (fr) P-isobutyl-hydratropate de gaiacol et procede pour sa preparation
FR2351786A1 (fr) Photocomposeuse et son procede de mise en oeuvre
BE856377A (fr) Procede de detachage des tissus et dispositif pour sa mise en oeuvre
FR2318846A1 (fr) Procede de sulfonation et installation pour sa mise en oeuvre
BE862913A (fr) Procede de sulfonation et appareil pour sa mise en oeuvre

Legal Events

Date Code Title Description
CD Change of name or company name
EM Correction of a material error concerning inscription in the national patent register
TP Transmission of property
ST Notification of lapse