CH453665A - Apparatus for forming ridges in two distinct directions on a strip of surface-solidified thermoplastic polymer - Google Patents
Apparatus for forming ridges in two distinct directions on a strip of surface-solidified thermoplastic polymerInfo
- Publication number
- CH453665A CH453665A CH1101166A CH1101166A CH453665A CH 453665 A CH453665 A CH 453665A CH 1101166 A CH1101166 A CH 1101166A CH 1101166 A CH1101166 A CH 1101166A CH 453665 A CH453665 A CH 453665A
- Authority
- CH
- Switzerland
- Prior art keywords
- strip
- printing elements
- drum
- distinct directions
- thermoplastic polymer
- Prior art date
Links
- 229920001169 thermoplastic Polymers 0.000 title claims description 5
- 229920000642 polymer Polymers 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 101700004678 SLIT3 Proteins 0.000 description 1
- 102100027339 Slit homolog 3 protein Human genes 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
-
- 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
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
-
- 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
- B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
-
- 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Moulding By Coating Moulds (AREA)
Description
Appareil pour la formation de stries selon deux directions distinctes sur une bande en polymère thermoplastique solidifié superficiellement
La présente invention est relative à un appareil pour la formation de stries selon deux directions distinctes sur une bande en polymère thermoplastique solidifié superficiellement. Cet appareil comprend au moins deux cylindres rotatifs dont la périphérie comporte des éléments d'impression disposés parallèlement et passant chacun à une faible distance d'un support mobile de ladite bande, lesdits cylindres assurant une compression de la bande entre eux et ledit support, la disposition des éléments d'impression étant telle qu'ils forment des stries selon deux directions distinctes sur ladite bande.
La bande en polymère, après son passage dans l'appareil défini ci-dessus, se présente sous la forme de grains réguliers reliés par une pellicule, et est aisément transformée en grains, par exemple par un procédé mécanique de découpage de la pellicule entre les grains.
On connaît des broyeurs servant à l'obtention de granulés à partir de bandes de polymères thermoplastiques, mais ces appareils nécessitent une énergie importante, sont bruyants et peuvent engendrer un échauffement de la matière qui risque de dégrader le polymère; de plus, ils donnent généralement des granulés de taille irrégu lière; ce dernier défaut peut être évité par l'emploi d'un granulateur dont le principe consiste à découper à froid les bandes en lanières puis à réduire ces lanières en granulés, mais ce dernier type d'appareil ne pallie malheureusement pas les autres inconvénients des broyeurs classiques.
On connaît également un appareil pour découper des granulés à partir de joncs à leur sortie de la filière, mais cet appareil ne permet pas la réalisation d'une production massive de façon simple; il est en effet difficile de multiplier le nombre de joncs sans encourir le risque d'emmêler lesdits joncs en cas de rupture de l'un d'eux.
De façon simple, le support mobile pourra être constitué par un tambour servant aussi d'organe d'entraînement de la bande. Afin de faciliter la formation de la pellicule superficielle solide, et de permettre une évacuation rapide de la chaleur dégagée par la bande à l'état pâteux, le tambour et éventuellement les deux rouleaux d'impression pourront être parcourus par un fluide tel que l'eau.
Avantageusement, afin d'améliorer le contact entre la bande et la paroi du tambour qui est généralement métallique en créant un gradient de température sensiblement égal à celui de l'autre face de la bande, le tambour sera fretté par un matériau résistant à la température du polymère et à la pression des rouleaux rotatifs, tel qu'une bande en polyamide ou en polyester.
La formation de la pellicule superficielle peut être améliorée du côté de l'impression par un dispositif de soufflage d'un gaz inerte vis-à-vis du polymère.
Les éléments d'impression des rouleaux rotatifs peuvent être constitués, par exemple, par des lames ou nervures; ils peuvent être disposés en hélices dont le pas peut prendre n'importe quelle valeur. Dans une forme d'exécution, les éléments d'impression d'un des cylindres sont des nervures disposées dans des plans perpendiculaires à l'axe du cylindre, tandis que les éléments d'impression de l'autre cylindre sont des nervures parallèles à l'axe du cylindre.
Afin d'éviter la formation d'une boucle de la bande de polymère entre les deux rouleaux, on réalise de préférence un entraînement positif de chaque rouleau. La distance entre l'arête des éléments d'impression et le tambour est réglée en fonction de la nature et de la viscosité du polymère à granuler. Elle est avantageusement la plus faible possible.
L'appareil selon la présente invention est d'encombrement réduit, moins bruyant et nécessite moins d'énergie que les broyeurs et granulateurs classiques, il est de marche régulière et sans à-coups, il permet de plus un grand débit de production et l'obtention de grains de forme très régulière, de coupe franche et pouvant être de petites dimensions, sans risque de dégradation du polymère.
Une forme d'exécution de l'appareil, donnée à titre d'exemple, est représentée au dessin annexé dans lequel le tambour 1 sert à la fois de support mobile et d'entraînement à la bande de polymère 2 extrudée par la fente 3.
Les organes d'impression sont constitués par le rouleau 4 à gorges 6 sensiblement perpendiculaires à l'axe du rou leati et par le rouleau 5 à gorges 7 sensiblement parallèles à son axe. La largeur des gorges 6 et 7 est identique.
La distance entre le rouleau 4 et la fente 3, et la vitesse d'entraînement de la bande 2 sont variables, de façon que le temps séparant l'extrusion de la bande 2 et l'impression par le rouleau 4 puisse être réglé en fonction du polymère traite.
Le dispositif de refroidissement est constitué par une double enveloppe 10, dont on a représenté l'entrée 8 et la sortie 9 sur le dessin, parcourant le tambour 1.
Dans une variante dudit appareil, la largeur des gorges est différente sur les deux rouleaux, ce qui confère aux granulés une section rectangulaire.
Les exemples suivants illustrent le fonctionnement de l appareil décrit ci-dessus.
Exeiîij > Ie 1
Une bande en polyhexaméthylène adipamide de 100 millimètres de largeur et de 2 mm d'épaisseur est extru dée par la fente 3 large de 110 mm. Elle est reçue par le tambour I de 500 mm de diamètre, à une distance de 10 mm de la fente d'extrusion. La bande 2 est ensuite imprimée longitudinalement en passant entre le tambour 1 et le rouleau 4 de diamètre 150 mm et situé à 200 mm du point de dépôt de la bande sur le tambour, puis transversalement en passant entre le tambour 1 et le rouleau 5 d'un diamètre de 150 mm; la distance d'axe à axe entre les deux rouleaux 4 et 5 est de 160 mm.
La distance entre le tambour I et les éléments d'impression est 0,2 mm. La hauteur des éléments d'impression est 4 mm. La largeur des gorges 6 et 7 sur les deux rouleaux 4 et 5 est la même et égale à 4 mm, de façon à imprimer sur la bande des granulés de section carrée.
Exeselple 2
Une bande de polytéréphtalate d'éthylène est extrudée par une fente 3 de 60 mm de longueur. Après avoir parcouru 3 cm elle est reçue par un tambour 1 de 500 mm de diamètre tournant à une vitesse périphérique de 3,5 m/mn. La bande de polymère obtenue sur le tambour présente une largeur de 45 mm et une épaisseur de 2,5 mm. Le tambour et les rouleaux sont refroidis par une circulation d'eau de façon que leur périphérie soit à une température sensiblement égale à 200 C. Le premier rouleau, de diamètre 150 mm, imprime la bande, à 30 cm de sa ligne d'extrusion, en stries parallèles à la direction de l'entraînement, espacées de 5 mm. Les nervures sont triangulaires, d'angle au sommet 400, de hauteur 4 mm. Le rouleau est disposé de façon que l'arête de ses dents passe à 2/10e de mm de la périphérie du tambour.
La bande est imprimée par le deuxième rouleau à 15 cm de la ligne d'impression du premier rouleau. Le deuxième rouleau a un diamètre de 300 mm et présente des nervures espacées de 5 mm, de section triangulaire avec un angle au sommet de 300, et de hauteur 4 mu. Les nervures du deuxième rouleau sont perpendiculaires aux nervures du premier rouleau. Le deuxième rouleau est disposé de sorte que les arêtes de ses nervures passent également à 2/10e de mm de la périphérie du tambour.
Apparatus for forming ridges in two distinct directions on a strip of surface-solidified thermoplastic polymer
The present invention relates to an apparatus for forming streaks in two distinct directions on a strip of surface-solidified thermoplastic polymer. This apparatus comprises at least two rotary cylinders, the periphery of which comprises printing elements arranged in parallel and each passing at a small distance from a movable support of said strip, said cylinders ensuring compression of the strip between them and said support, the arrangement of the printing elements being such that they form streaks in two distinct directions on said strip.
The polymer strip, after passing through the apparatus defined above, is in the form of regular grains connected by a film, and is easily transformed into grains, for example by a mechanical process of cutting the film between the layers. grains.
There are known grinders for obtaining granules from strips of thermoplastic polymers, but these devices require significant energy, are noisy and can cause heating of the material which risks degrading the polymer; in addition, they generally give granules of irregular size; this latter defect can be avoided by using a granulator, the principle of which consists of cold cutting the strips into strips and then reducing these strips into granules, but this latter type of device unfortunately does not overcome the other drawbacks of grinders classic.
An apparatus is also known for cutting granules from rods at their exit from the die, but this apparatus does not allow mass production to be carried out in a simple manner; it is in fact difficult to multiply the number of rods without running the risk of entangling said rods in the event of one of them breaking.
In a simple manner, the movable support could be constituted by a drum also serving as a drive member for the strip. In order to facilitate the formation of the solid surface film, and to allow rapid evacuation of the heat given off by the strip in the pasty state, the drum and possibly the two printing rollers may be traversed by a fluid such as water.
Advantageously, in order to improve the contact between the strip and the wall of the drum which is generally metallic by creating a temperature gradient substantially equal to that of the other face of the strip, the drum will be wrapped in a temperature resistant material. polymer and the pressure of the rotating rollers, such as a polyamide or polyester tape.
The formation of the surface film can be improved on the printing side by a device for blowing a gas inert to the polymer.
The printing elements of the rotating rollers can be constituted, for example, by blades or ribs; they can be arranged in helices, the pitch of which can take any value. In one embodiment, the printing elements of one of the cylinders are ribs arranged in planes perpendicular to the axis of the cylinder, while the printing elements of the other cylinder are ribs parallel to the cylinder. axis of the cylinder.
In order to avoid the formation of a loop of the polymer strip between the two rollers, a positive drive of each roll is preferably carried out. The distance between the edge of the printing elements and the drum is adjusted depending on the nature and the viscosity of the polymer to be granulated. It is advantageously as low as possible.
The apparatus according to the present invention is compact, less noisy and requires less energy than conventional crushers and granulators, it operates smoothly and smoothly, it also allows a high production rate and 'obtaining grains of very regular shape, of clean cut and which may be of small dimensions, without risk of degradation of the polymer.
An embodiment of the apparatus, given by way of example, is shown in the accompanying drawing in which the drum 1 serves both as a movable support and as a drive for the polymer strip 2 extruded through the slot 3.
The printing members are formed by the roller 4 with grooves 6 substantially perpendicular to the axis of the roulette wheel and by the roller 5 with grooves 7 substantially parallel to its axis. The width of the grooves 6 and 7 is identical.
The distance between the roll 4 and the slot 3, and the feed speed of the strip 2 are variable, so that the time between the extrusion of the strip 2 and the printing by the roll 4 can be adjusted accordingly. of the treated polymer.
The cooling device is formed by a double jacket 10, the inlet 8 and outlet 9 of which are shown in the drawing, running through the drum 1.
In a variant of said apparatus, the width of the grooves is different on the two rollers, which gives the granules a rectangular section.
The following examples illustrate the operation of the apparatus described above.
Exeiîij> Ie 1
A strip of polyhexamethylene adipamide 100 millimeters wide and 2 mm thick is extruded through the 110 mm wide slot 3. It is received by the drum I of 500 mm in diameter, at a distance of 10 mm from the extrusion slot. The strip 2 is then printed longitudinally passing between the drum 1 and the roller 4 with a diameter of 150 mm and located 200 mm from the point of deposit of the strip on the drum, then transversely passing between the drum 1 and the roller 5 d 'a diameter of 150 mm; the axis to axis distance between the two rollers 4 and 5 is 160 mm.
The distance between the drum I and the printing elements is 0.2 mm. The height of the printing elements is 4 mm. The width of the grooves 6 and 7 on the two rollers 4 and 5 is the same and equal to 4 mm, so as to print on the strip granules of square section.
Exeselple 2
A strip of polyethylene terephthalate is extruded through a slit 3 60 mm long. After having traveled 3 cm, it is received by a drum 1 of 500 mm in diameter rotating at a peripheral speed of 3.5 m / min. The polymer strip obtained on the drum has a width of 45 mm and a thickness of 2.5 mm. The drum and the rollers are cooled by circulating water so that their periphery is at a temperature substantially equal to 200 C. The first roller, with a diameter of 150 mm, prints the strip, 30 cm from its extrusion line. , in streaks parallel to the direction of the feed, spaced 5 mm apart. The ribs are triangular, at an angle at the top 400, 4 mm high. The roller is arranged so that the edge of its teeth passes 2 / 10th of a mm from the periphery of the drum.
The web is printed by the second roll 15 cm from the print line of the first roll. The second roll has a diameter of 300 mm and has ribs spaced 5 mm apart, of triangular section with an apex angle of 300, and 4 mu in height. The ribs of the second roll are perpendicular to the ribs of the first roll. The second roller is arranged so that the ridges of its ribs also pass 2 / 10th of a mm from the periphery of the drum.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR26714A FR1472053A (en) | 1965-07-30 | 1965-07-30 | Equipment for the granulation of thermoplastic polymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH453665A true CH453665A (en) | 1968-03-31 |
Family
ID=8585708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1101166A CH453665A (en) | 1965-07-30 | 1966-07-29 | Apparatus for forming ridges in two distinct directions on a strip of surface-solidified thermoplastic polymer |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE684823A (en) |
| CH (1) | CH453665A (en) |
| ES (1) | ES329701A1 (en) |
| FR (1) | FR1472053A (en) |
| GB (1) | GB1112097A (en) |
| NL (1) | NL6610375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706804A1 (en) * | 1993-06-25 | 1994-12-30 | Delacour Frederic | Method of treating the surface of a thermoformable material and device for this treatment |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5023455A (en) * | 1973-07-03 | 1975-03-13 | ||
| US4340557A (en) * | 1980-12-16 | 1982-07-20 | Ball Corporation | Method of making unfestooned plastic containers from polygonal blanks |
| EP0881049A1 (en) * | 1997-05-28 | 1998-12-02 | STEEL BELT SYSTEMS S.r.l. | A device for working sheet material |
| NL1018065C2 (en) * | 2001-05-14 | 2002-11-15 | Jacobus Lambertus V Merksteijn | Preparation of powder composition, for uses such as powder coating, comprises rolling extruded strand into web and breaking web along pattern lines |
| US6838030B2 (en) * | 2001-07-30 | 2005-01-04 | Sumitomo Bakelite Company Limited | Method of and apparatus for manufacturing molded materials of thermosetting resin composition |
| ITMI20030659A1 (en) * | 2003-04-04 | 2004-10-05 | Steel Belt Systems Srl | CARVING DEVICE IN PARTICULAR OF PLASTIC STATE MATERIALS |
-
1965
- 1965-07-30 FR FR26714A patent/FR1472053A/en not_active Expired
-
1966
- 1966-07-22 NL NL6610375A patent/NL6610375A/xx unknown
- 1966-07-26 GB GB33619/66A patent/GB1112097A/en not_active Expired
- 1966-07-29 CH CH1101166A patent/CH453665A/en unknown
- 1966-07-29 BE BE684823D patent/BE684823A/xx unknown
- 1966-07-30 ES ES0329701A patent/ES329701A1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2706804A1 (en) * | 1993-06-25 | 1994-12-30 | Delacour Frederic | Method of treating the surface of a thermoformable material and device for this treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| ES329701A1 (en) | 1967-09-01 |
| BE684823A (en) | 1967-01-30 |
| FR1472053A (en) | 1967-03-10 |
| GB1112097A (en) | 1968-05-01 |
| NL6610375A (en) | 1967-01-31 |
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