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ES2051642A1 - Process for regenerating partially degraded polyethylene - Google Patents

Process for regenerating partially degraded polyethylene

Info

Publication number
ES2051642A1
ES2051642A1 ES9201658A ES9201658A ES2051642A1 ES 2051642 A1 ES2051642 A1 ES 2051642A1 ES 9201658 A ES9201658 A ES 9201658A ES 9201658 A ES9201658 A ES 9201658A ES 2051642 A1 ES2051642 A1 ES 2051642A1
Authority
ES
Spain
Prior art keywords
partially degraded
regenerating
treatment
antioxidant
polyethylene
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
Application number
ES9201658A
Other languages
Spanish (es)
Other versions
ES2051642B1 (en
Inventor
Castellanos Ovidio Laguna
Collar Emilia Perez
Gonzalez Jesus Taranco
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.)
PRISMA PROMOCION DE IND Y SERV
Original Assignee
PRISMA PROMOCION DE IND Y SERV
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 PRISMA PROMOCION DE IND Y SERV filed Critical PRISMA PROMOCION DE IND Y SERV
Priority to ES9201658A priority Critical patent/ES2051642B1/en
Publication of ES2051642A1 publication Critical patent/ES2051642A1/en
Application granted granted Critical
Publication of ES2051642B1 publication Critical patent/ES2051642B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Process for regenerating partially degraded polyethylene, especially low-density polyethylene used as greenhouse covering and which has been partially degraded through the action of sunlight. The process consists in subjecting the polymer, which is partially degraded and has been subjected to a prior physical treatment leading to a reduction in its size and the removal of impurities, to a treatment with a mixture consisting of a stabilizing agent and an antioxidant, together with variable quantities of pure raw material in an extruder at temperatures below 170 degree C. A phenolic derivative may be used as antioxidant agent and a phosphate as stabilizer. The siftings thus obtained comply with the technical specifications required for its subsequent conversion and utilization in different applications. This process allows recycling and reuse of agricultural plastic, preventing environmental pollution which results from unsuitable treatment thereof.
ES9201658A 1992-08-06 1992-08-06 PROCEDURE FOR THE REGENERATION OF PARTIALLY DEGRADED POLYETHYLENE. Expired - Fee Related ES2051642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9201658A ES2051642B1 (en) 1992-08-06 1992-08-06 PROCEDURE FOR THE REGENERATION OF PARTIALLY DEGRADED POLYETHYLENE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9201658A ES2051642B1 (en) 1992-08-06 1992-08-06 PROCEDURE FOR THE REGENERATION OF PARTIALLY DEGRADED POLYETHYLENE.

Publications (2)

Publication Number Publication Date
ES2051642A1 true ES2051642A1 (en) 1994-06-16
ES2051642B1 ES2051642B1 (en) 1995-01-16

Family

ID=8277914

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9201658A Expired - Fee Related ES2051642B1 (en) 1992-08-06 1992-08-06 PROCEDURE FOR THE REGENERATION OF PARTIALLY DEGRADED POLYETHYLENE.

Country Status (1)

Country Link
ES (1) ES2051642B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2190719A1 (en) * 2001-01-18 2003-08-01 Uni Jaume I PLASTIC MATERIAL ELABORATED FROM GRANZAS DE RESIDUAL THERMOPLASTIC MATERIALS.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717307A (en) * 1970-02-06 1973-02-20 E Beck Method of preparing regrind
US4067826A (en) * 1974-07-31 1978-01-10 Guy Emery Recovery of mixed plastic materials
ES2009093A6 (en) * 1987-11-06 1989-08-16 Otv Omnium De Traitemens Et De Procedure for the manufacture of extruded or molded objects to bear from residues containing plastic materials. (Machine-translation by Google Translate, not legally binding)
EP0401885A1 (en) * 1989-06-09 1990-12-12 MASTER S.r.l. Process for the reuse of solid waste by means of conglobation in thermoplastic resins
WO1991004100A1 (en) * 1989-09-15 1991-04-04 Plastic Recovery Systems, Inc. Process for the separation and recovery of plastics
WO1991019763A1 (en) * 1990-06-18 1991-12-26 Exxon Chemical Patents Inc. New hdpe resins and products with improved properties

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717307A (en) * 1970-02-06 1973-02-20 E Beck Method of preparing regrind
US4067826A (en) * 1974-07-31 1978-01-10 Guy Emery Recovery of mixed plastic materials
ES2009093A6 (en) * 1987-11-06 1989-08-16 Otv Omnium De Traitemens Et De Procedure for the manufacture of extruded or molded objects to bear from residues containing plastic materials. (Machine-translation by Google Translate, not legally binding)
EP0401885A1 (en) * 1989-06-09 1990-12-12 MASTER S.r.l. Process for the reuse of solid waste by means of conglobation in thermoplastic resins
WO1991004100A1 (en) * 1989-09-15 1991-04-04 Plastic Recovery Systems, Inc. Process for the separation and recovery of plastics
WO1991019763A1 (en) * 1990-06-18 1991-12-26 Exxon Chemical Patents Inc. New hdpe resins and products with improved properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2190719A1 (en) * 2001-01-18 2003-08-01 Uni Jaume I PLASTIC MATERIAL ELABORATED FROM GRANZAS DE RESIDUAL THERMOPLASTIC MATERIALS.

Also Published As

Publication number Publication date
ES2051642B1 (en) 1995-01-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20050808