EP0701583A1 - Procede et dispositif destines a convertir du pvc rigide - Google Patents

Procede et dispositif destines a convertir du pvc rigide

Info

Publication number
EP0701583A1
EP0701583A1 EP19950908890 EP95908890A EP0701583A1 EP 0701583 A1 EP0701583 A1 EP 0701583A1 EP 19950908890 EP19950908890 EP 19950908890 EP 95908890 A EP95908890 A EP 95908890A EP 0701583 A1 EP0701583 A1 EP 0701583A1
Authority
EP
European Patent Office
Prior art keywords
pvc
riged
plastizicer
resin
procedure
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.)
Withdrawn
Application number
EP19950908890
Other languages
German (de)
English (en)
Inventor
Michael Wilhjelm HORUP
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0701583A1 publication Critical patent/EP0701583A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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

Definitions

  • the invention involves a method to convert riged PVC, which is divided in a grinding mill to a chip, into recyclable PVC, and a production unit to carry out the meth
  • Hard or riged PVC is used in great extension both to technical articles, as pipes and sheets, and to packing objects as cups, bottles and similar.articles.
  • Rigid PVC can practically only be recycled as riged PVC with reduced physical properties. This is due to the fact that riged PVC can not absorb plastizicer, which are high- boiling esthers of an oillik consistency, which releases between chainmolecules and solves its mutual polar binding so that there is made a more soft PVC.
  • these plastizicers can not be mix to a sufficient extend in chips of riged PVC, while the plastizicers smoothe of the individual particles, which for instance can be of comminuted riged PVC-sheet, which slippery surface can not hold the plastizecer ⁇ .
  • the plastizicer can be absor in the single PVC resin particles in such a quantity and ex ⁇ tension, that PVC particles by the mixture can surround the single riged PVC particles.
  • the result is that there by the procedure according the invention can be obtained both recycling of rigid PVC and softening of the PVC.
  • fig. 1 shows a diagram of a unit to caary out the procedure
  • fig. 2 shows a PVC recin particle with plastizicer
  • fig. 3 shows a part of a chip of riged PVC.
  • This sheet is pressed through a grinding mill 2, where it is divided, so that it can be lead in the following mixture.
  • a register 4 regulates the flow to the nexct phase, viz. the mixing.
  • the mixing is done in a mixer 6, where the divided rigid PVC 14 is added.
  • the mixture 5 contents a known quantity of new PVC resin, which together with the plasticizer and if necessary other additives, as stabilizor, colour etc.
  • the mixing is carried out at a temperature around 120 C after which the compound is cooled down to around 80 C, before it is conveyed from the mixer via a register 4 and conveyed to an extruder with a ⁇ ocalled driwing screw 7 where the material is compressed and heated to melting, so t it can be extruded through a tool 6.
  • the extruded material passes a cutter 9 to pelletlze the material.
  • This granulate is after this conveyed to a silo 11, where it is cooled in a ordinary known wa .
  • fig. 2 On fig. 2 is shown a heavyly magnifyed picture of a new PVC resin 12, to which is added plastizicer 13, which can be obtained in a rather great quantity in fluent scape, while it will be absorbed and by that fixed at the grain, which i shown on the drawing.
  • This homogeneous compound will after that be compressed and heated to melting level around 180 C and after that granulated through a perferated tool 8, which can be a perfo rated disc, and thereby granulated by the tool 9.
  • the invention is discribed in accordance with recycling of rigid PVC-sheet, but it is included in the invention limits also to use the procedure and the equipment to the recycling of other riged PVC-products, which hereby will be able to be recycled due to the possible improved properti and at a price which is more competitive compared with new PVC, at least when it is considered that there are no waste problems neither in connection with incineration nor depositing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

Selon l'invention, l'utilisation d'un procédé de recyclage de PVC rigide permet de résoudre les problèmes de récupération de ces déchets. Ce procédé consiste à mélanger le PVC rigide, lequel se fractionne en morceaux (14), avec une nouvelle résine PVC (12) à laquelle on a ajouté un certain nombre de plastifiants (13), à comprimer et à faire fondre ce mélange, puis à l'extruder dans un outil (7, 8) et à le mettre sous forme de pastilles (9). Ainsi, on peut utiliser le matériau (15) obtenu selon ce procédé dans la production de nouveaux produits, étant donné que les propriétés physiques de ce matériau correspondent à celles du PVC neuf et qu'il peut présenter, en outre, une plus grande souplesse.
EP19950908890 1994-02-09 1995-02-09 Procede et dispositif destines a convertir du pvc rigide Withdrawn EP0701583A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK165/94 1994-02-09
DK16594 1994-02-09
PCT/DK1995/000059 WO1995022574A1 (fr) 1994-02-09 1995-02-09 Procede et dispositif destines a convertir du pvc rigide

Publications (1)

Publication Number Publication Date
EP0701583A1 true EP0701583A1 (fr) 1996-03-20

Family

ID=8090507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950908890 Withdrawn EP0701583A1 (fr) 1994-02-09 1995-02-09 Procede et dispositif destines a convertir du pvc rigide

Country Status (3)

Country Link
EP (1) EP0701583A1 (fr)
AU (1) AU1705195A (fr)
WO (1) WO1995022574A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2390464A1 (fr) * 1977-05-13 1978-12-08 Rondinaud James Procede d'obtention de chlorure de polyvinyle a nouveau utilisable a partir de dechets de ce materiau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9522574A1 *

Also Published As

Publication number Publication date
AU1705195A (en) 1995-09-04
WO1995022574A1 (fr) 1995-08-24

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