ES2255332A1 - Manufacturing method for plastic panels, involves co-extruding intermediate, external, and internal layers each containing high percentage by weight of recycled polyolefins - Google Patents
Manufacturing method for plastic panels, involves co-extruding intermediate, external, and internal layers each containing high percentage by weight of recycled polyolefinsInfo
- Publication number
- ES2255332A1 ES2255332A1 ES200200126A ES200200126A ES2255332A1 ES 2255332 A1 ES2255332 A1 ES 2255332A1 ES 200200126 A ES200200126 A ES 200200126A ES 200200126 A ES200200126 A ES 200200126A ES 2255332 A1 ES2255332 A1 ES 2255332A1
- Authority
- ES
- Spain
- Prior art keywords
- weight
- panels
- manufacture
- coextrusion
- organic
- 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.)
- Granted
Links
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 title claims abstract description 12
- 229920003023 plastic Polymers 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 239000011256 inorganic filler Substances 0.000 claims description 9
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 9
- 239000012766 organic filler Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims 10
- 239000011247 coating layer Substances 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 238000004806 packaging method and process Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B29C47/06—
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Procedimiento para la fabricación de paneles de materiales plásticos, estratificados, con cargas orgánicas o inorgánicas, por coextrusión y paneles fabricados mediante el mismo.Procedure for the manufacture of panels plastic materials, laminated, with organic fillers or inorganic, by coextrusion and panels manufactured by means of same.
La presente invención se refiere a un procedimiento para la fabricación de paneles realizados en materiales plásticos de tipo estratificado, con cargas orgánicas e inorgánicas, utilizando procedimientos de coextrusión y como mínimo tres estratos en cada panel.The present invention relates to a procedure for manufacturing panels made in plastic materials of stratified type, with organic loads and inorganic, using coextrusion procedures and at least Three layers in each panel.
Dichos paneles tienen diferentes aplicaciones industriales, en especial en el sector de fabricación de envases y embalajes.These panels have different applications industrial, especially in the sector of packaging manufacturing and packaging
En la actualidad son conocidos paneles realizados por coextrusión en los que dos capas exteriores están realizadas mediante poliolefinas y cargas inorgánicas y una capa intermedia queda conformada a base de poliolefinas y cargas de tipo orgánico.Nowadays panels are known made by coextrusion in which two outer layers are made using polyolefins and inorganic fillers and a layer intermediate is made up of polyolefins and type charges organic.
En la fabricación de dichos paneles y en la fabricación posterior de elementos para cajas de envase y embalaje fabricadas a partir de los mismos se producen desperdicios en importantes cantidades, que hasta el momento no se han aprovechado industrialmente y que representan un aumento de costes sensible en los paneles fabricados.In the manufacture of said panels and in the subsequent manufacture of elements for container and packaging boxes manufactured from them waste is produced in significant amounts, which so far have not been taken advantage of industrially and that represent a sensible increase in costs in the manufactured panels.
La presente invención está destinada precisamente a conseguir la posibilidad de utilización de materiales reciclados y/o recuperados sobre todo para la capa intermedia o central del panel, que es la que habitualmente tiene una proporción más elevada de masa del panel en su conjunto, permitiendo conseguir importantes ahorros en los costes de las materias primas.The present invention is intended precisely to achieve the possibility of using recycled and / or recovered materials especially for the layer intermediate or central panel, which is the one that usually has a higher proportion of mass of the panel as a whole, allowing to achieve significant savings in the costs of raw Materials.
En este sentido, se debe tener en cuenta que, en una fabricación típica de dicho tipo de paneles, el 70% de la masa de los mismos corresponde a la masa de la capa intermedia y el 30% restante se distribuye de forma habitualmente irregular, por ejemplo 20% y 10% respectivamente en una y otra de las dos capas externas que recubren la capa intermedia.In this regard, it should be borne in mind that, in a typical manufacture of such panels, 70% of the mass of these corresponds to the mass of the intermediate layer and 30% remaining is usually distributed irregularly, by example 20% and 10% respectively in both layers external covering the intermediate layer.
La realización de diferentes experimentos y pruebas por parte de los inventores ha permitido conseguir el procedimiento objeto de la presente invención, que permite utilizar materiales reciclados y/o recuperados en porcentajes que pueden llegar hasta el 95% en la capa intermedia del panel.The performance of different experiments and evidence by the inventors has allowed to get the procedure object of the present invention, which allows to use recycled and / or recovered materials in percentages that may reach up to 95% in the middle layer of the panel.
Por materiales reciclados, se comprenden tanto los paneles defectuosos por una u otra razón y que resultan rechazados durante su fabricación o al final de la misma, como asimismo los recortes de fabricación de piezas troqueladas a partir de dichos paneles cuyas piezas están destinadas a ser utilizadas posteriormente en la fabricación de envases y embalajes, entendiéndose por materiales de recuperación los existentes en el comercio procedentes del aprovechamiento de otros restos y residuos de materias primas similares.Recycled materials include both defective panels for one reason or another and that result rejected during its manufacture or at the end of it, as also the cuts of manufacture of pieces cut from of said panels whose parts are intended to be used subsequently in the manufacture of containers and packaging, understood by recovery materials those existing in the trade from the use of other remains and waste of similar raw materials.
De acuerdo con la presente invención, se procede a la fabricación del panel por coextrusión mediante una capa intermedia que está compuesta en una proporción variable, que puede llegar al 95%, por material de poliolefinas con cargas orgánicas e inorgánicas, procedente de reciclado o recuperación tal como se ha mencionado, debidamente triturado para posibilitar su utilización en una extrusionadora, mezclando previamente al material a extrusionar una proporción comprendida entre 0,25% y 3% en peso de una materia lubrificante del tipo utilizado para la extrusión de materiales plásticos, por ejemplo, estearato de zinc, estearato cálcico u otros.In accordance with the present invention, we proceed to the manufacture of the panel by coextrusion by means of a layer intermediate that is composed in a variable proportion, which can reach 95%, by polyolefins material with organic fillers and inorganic, from recycling or recovery as it has been mentioned, properly crushed to enable its use in an extruder, previously mixing the material to extrude a proportion between 0.25% and 3% by weight of a lubricating material of the type used for extrusion of plastic materials, for example, zinc stearate, stearate Calcium or others.
Los inventores han observado que los mejores resultados se consiguen cuando se utiliza una proporción de lubrificantes similar a la que se ha indicado, es decir, comprendida aproximadamente entre 0,25% y 3% en peso para las capas externas, si bien no se pueden excluir otras proporciones en determinados casos.The inventors have observed that the best results are achieved when a proportion of lubricants similar to the one indicated, that is, between approximately 0.25% and 3% by weight for the layers external, although other proportions cannot be excluded in certain cases
Con la aplicación del presente procedimiento los paneles estratificados tienen espesores comprendidos preferentemente entre 0,5 mm y 5 mm preferentemente y las capas externas tienen una composición a base de una poliolefina y una carga inorgánica, preferentemente constituida por talco en polvo o carbonato cálcico y un lubrificante en la proporción indicada, por lo que su composición final resulta ser aproximadamente:With the application of this procedure the stratified panels have thicknesses included preferably between 0.5 mm and 5 mm preferably and the layers external have a composition based on a polyolefin and a inorganic filler, preferably consisting of talcum powder or calcium carbonate and a lubricant in the proportion indicated, by what its final composition turns out to be approximately:
poliolefinas: 25% a 75%polyolefins: 25% to 75%
cargas minerales: 25% a 75%mineral loads: 25% to 75%
lubrificante: 0,25% a 3%lubricant: 0.25% to 3%
La capa intermedia queda realizada en una importante proporción por materiales de poliolefinas y cargas orgánicas e inorgánicas de reciclado y/o recuperación, que pueden llegar hasta 95% en peso, complementados por un lubrificante comprendido entre 0,25% y 3% en peso y carga orgánica comprendida entre 4% y 60%.The intermediate layer is made in a significant proportion of polyolefin materials and fillers organic and inorganic recycling and / or recovery, which can reach up to 95% by weight, complemented by a lubricant between 0.25% and 3% by weight and organic load included between 4% and 60%.
Mediante la aplicación del presente procedimiento se consigue la reutilización de gran cantidad de productos reciclados de la misma fabricación de los paneles utilizados como materia prima y asimismo se posibilita la utilización de materiales de desecho de la fabricación de los paneles troquelados para obtener las piezas de envases y embalajes, lo cual representa una importante reducción del coste de las materias primas. Dadas las características del procedimiento objeto de la presente invención, éste permite no solamente utilizar productos reciclados procedentes de la misma fabricación de los paneles o del troquelado de los mismos, sino también poliolefinas de recuperación comerciales, es decir, poliolefinas recicladas procedentes de otras aplicaciones.By applying this procedure you get the reuse of lots of recycled products of the same panel manufacturing used as raw material and also the use of waste materials in the manufacture of stamped panels to obtain the pieces of containers and packagings, which represents a significant reduction in the cost of raw Materials. Given the characteristics of the object procedure of the present invention, this allows not only to use recycled products from the same manufacturing of or die cut panels thereof, but also polyolefins of commercial recovery, that is, recycled polyolefins from other applications.
Los paneles obtenidos mediante la presente invención se caracterizan por su baja densidad real e inapreciable absorción de agua, con excelentes características mecánicas, tal como es de ver en la tabla adjunta que corresponde a las características de paneles realizados, a título de ejemplo, de acuerdo con la presente invención con una tolerancia de espesores de láminas de \pm 0,5 mm.The panels obtained herein invention are characterized by their low real and invaluable density water absorption, with excellent mechanical characteristics, such as you can see in the attached table that corresponds to the characteristics of panels made, by way of example, of according to the present invention with a thickness tolerance of sheets of ± 0.5 mm.
En la tabla adjunta se muestran los resultados de diferentes características mecánicas para cinco ejemplos de paneles realizados de acuerdo con la invención, con espesores respectivos de: 0,85, 1, 1,6, 2 y 3 mm.The attached table shows the results. of different mechanical characteristics for five examples of panels made in accordance with the invention, with thicknesses respective of: 0.85, 1, 1.6, 2 and 3 mm.
\vskip1.000000\baselineskip\ vskip1.000000 \ baselineskip
Resultados de pruebas realizadas con paneles según la invenciónResults of tests performed with panels according to invention
Tal como es de ver, los resultados conseguidos muestran excelentes características mecánicas con una reducida densidad real y casi inapreciable absorción de agua, es decir, paneles con excelentes características y cuya fabricación presenta sensibles ventajas económicas.As you can see, the results achieved show excellent mechanical characteristics with a reduced real density and almost negligible water absorption, that is, panels with excellent characteristics and whose manufacturing presents Sensitive economic advantages.
Todo cuanto no afecte, altere, cambie o modifique la esencia del procedimiento descrito, será variable a los efectos de la presente invención.Everything that does not affect, alter, change or modify the essence of the procedure described, it will be variable to The effects of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200200126A ES2255332B1 (en) | 2002-01-22 | 2002-01-22 | PROCEDURE FOR THE MANUFACTURE OF PANELS OF PLASTIC, STRATIFIED MATERIALS, WITH ORGANIC OR INORGANIC LOADS, BY COEXTRUSION AND PANELS MANUFACTURED THROUGH THE SAME. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200200126A ES2255332B1 (en) | 2002-01-22 | 2002-01-22 | PROCEDURE FOR THE MANUFACTURE OF PANELS OF PLASTIC, STRATIFIED MATERIALS, WITH ORGANIC OR INORGANIC LOADS, BY COEXTRUSION AND PANELS MANUFACTURED THROUGH THE SAME. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2255332A1 true ES2255332A1 (en) | 2006-06-16 |
| ES2255332B1 ES2255332B1 (en) | 2007-05-01 |
Family
ID=36593236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200200126A Expired - Fee Related ES2255332B1 (en) | 2002-01-22 | 2002-01-22 | PROCEDURE FOR THE MANUFACTURE OF PANELS OF PLASTIC, STRATIFIED MATERIALS, WITH ORGANIC OR INORGANIC LOADS, BY COEXTRUSION AND PANELS MANUFACTURED THROUGH THE SAME. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2255332B1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402889A (en) * | 1982-02-04 | 1983-09-06 | Composite Container Corporation | Making sheet with moisture barrier properties coextruded from scrap materials |
| US4647509A (en) * | 1985-10-07 | 1987-03-03 | The Dow Chemical Company | Thermoformable multilayer barrier structures |
| US4877682A (en) * | 1986-03-24 | 1989-10-31 | Amoco Corporation | Laminates containing coextruded scrap |
| US5928798A (en) * | 1994-04-28 | 1999-07-27 | Cryovac, Inc. | Multi-layer polyolefin film containing recycle polymer from cross-linked films |
-
2002
- 2002-01-22 ES ES200200126A patent/ES2255332B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402889A (en) * | 1982-02-04 | 1983-09-06 | Composite Container Corporation | Making sheet with moisture barrier properties coextruded from scrap materials |
| US4647509A (en) * | 1985-10-07 | 1987-03-03 | The Dow Chemical Company | Thermoformable multilayer barrier structures |
| US4877682A (en) * | 1986-03-24 | 1989-10-31 | Amoco Corporation | Laminates containing coextruded scrap |
| US5928798A (en) * | 1994-04-28 | 1999-07-27 | Cryovac, Inc. | Multi-layer polyolefin film containing recycle polymer from cross-linked films |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2255332B1 (en) | 2007-05-01 |
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