ES2145989T3 - Procedimiento para producir una hoja de poliestireno de celula abierta y bandeja del mismo. - Google Patents

Procedimiento para producir una hoja de poliestireno de celula abierta y bandeja del mismo.

Info

Publication number
ES2145989T3
ES2145989T3 ES96830632T ES96830632T ES2145989T3 ES 2145989 T3 ES2145989 T3 ES 2145989T3 ES 96830632 T ES96830632 T ES 96830632T ES 96830632 T ES96830632 T ES 96830632T ES 2145989 T3 ES2145989 T3 ES 2145989T3
Authority
ES
Spain
Prior art keywords
mixture
sheet
producing
polystyrene
tray
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 - Lifetime
Application number
ES96830632T
Other languages
English (en)
Inventor
Federico Lanzani
Renato Mauri
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.)
SIRAP GEMA SpA
Original Assignee
SIRAP GEMA SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8226080&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2145989(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SIRAP GEMA SpA filed Critical SIRAP GEMA SpA
Application granted granted Critical
Publication of ES2145989T3 publication Critical patent/ES2145989T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
    • B65D81/264—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing liquids
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—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 an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/06—Polystyrene
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • 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
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/05—Open cells, i.e. more than 50% of the pores are open
    • 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
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/30—Polymeric waste or recycled polymer
    • 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
    • C08J2325/00—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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • 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
    • C08J2325/00—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 an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/06—Polystyrene
    • 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
    • C08J2425/00—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 an aromatic carbocyclic ring; Derivatives of such polymers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

SE DESCRIBE UN METODO PARA PRODUCIR UNA LAMINA DE POLIESTIRENO EXPANDIDA CON LA MAYORIA DE LAS CAVIDADES ABIERTAS, QUE CONSTA DE LOS PASOS SIGUIENTES: - FORMACION DE UNA MEZCLA COMPUESTA POR UN 30 A UN 95 % DE POLIESTIRENO, INCORPORANDO UN HIDROCARBURO ALIFATICO DE 4 A 6 ATOMOS DE CARBONO, ENTRE UN 0 Y UN 65 % DE POLIESTIRENO Y ENTRE UN 0,2 Y UN 10 % DE UN AGENTE NUCLEANTE, - AGITACION DE LA MEZCLA OBTENIDA Y FUSION DE LA MISMA POR CALENTAMIENTO EN EL INTERIOR DE UN EXTRUSOR, - CALENTAMIENTO DE LA MEZCLA A UNA TEMPERATURA DE 130 A 150 C EN LA PARTE FINAL DEL EXTRUSOR, - EXTRUSION DE LA MEZCLA EN UNA ATMOSFERA A BAJA PRESION PARA PRODUCIR UNA LAMINA EXPANDIDA. LA LAMINA ASI PRODUCIDA SE CARACTERIZA POR UNA BAJA DENSIDAD Y UNA ALTA CAPACIDAD PARA ABSORBER LIQUIDOS ACUOSOS, EN ESPECIAL SI SE AÑADE UN SURFACTANTE A LA MEZCLA INICIAL. EL ACOPLAMIENTO DE LA LAMINA CON DOS PELICULAS DE MATERIAL PLASTICO PRODUCE UN LAMINADO ADECUADO PARA LA PRODUCCION, POR TERMOFORMADO, DE BANDEJAS PARA ALIMENTOS QUE PUEDEN LIBERAR LIQUIDOS ACUOSOS.
ES96830632T 1996-12-18 1996-12-18 Procedimiento para producir una hoja de poliestireno de celula abierta y bandeja del mismo. Expired - Lifetime ES2145989T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96830632A EP0849309B1 (en) 1996-12-18 1996-12-18 Method of producing an open-cell expanded polystyrene sheet and tray thereof

Publications (1)

Publication Number Publication Date
ES2145989T3 true ES2145989T3 (es) 2000-07-16

Family

ID=8226080

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96830632T Expired - Lifetime ES2145989T3 (es) 1996-12-18 1996-12-18 Procedimiento para producir una hoja de poliestireno de celula abierta y bandeja del mismo.

Country Status (5)

Country Link
EP (1) EP0849309B1 (es)
AT (1) ATE190338T1 (es)
DE (1) DE69607014T2 (es)
ES (1) ES2145989T3 (es)
PL (1) PL323815A1 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9726600D0 (en) * 1997-12-18 1998-02-18 Linpac Plastics Int Packaging materials and packaging trays
GB9902556D0 (en) * 1999-02-06 1999-03-24 Linpac Plastics Ltd Container
FR2793771B1 (fr) * 1999-05-21 2001-07-20 Philippe Beaufils Procede de conditionnement et conditionnement pour la conservation et/ou la cuisson ou le rechauffage de produits alimentaires
EP1118551B1 (en) 2000-01-18 2004-08-18 SIRAP-GEMA S.p.A. Food tray produced from a sheet of an open-cell expanded thermoplastic material
EP1164091B1 (de) * 2000-06-13 2004-12-29 Silver-Plastics GmbH & Co. KG Verpackungsschale aus Schaumstoff und Verfahren zu ihrer Herstellung
DE60017920T2 (de) 2000-11-30 2006-04-13 Sirap-Gema S.P.A., Verolanuova Vakuumverpackung oder Verpackung unter modifizierter Atmosphäre von Flüssigkeiten absondernden Nahrungsmitteln
ES2246307T5 (es) * 2001-09-26 2011-06-03 Sirap-Gema S.P.A. Bandeja hecha de plásticos expandidos de células abiertas para verduras.
ITMI20020678A1 (it) 2002-03-29 2003-09-29 Sirap Gema Spa Confezione per la conservazione sottovuoto o in atmosfera protettiva di alimenti suscettibili di rilasciare liquidi e/o aeriformi
EP1468820B1 (en) * 2003-03-19 2007-10-31 COOPBOX Eastern sro A method for producing an expanded polystyrene sheet for a tray containing food products which can release liquids and a tray obtained from said sheet
US20060160928A1 (en) * 2005-01-18 2006-07-20 Cleveland Christopher S Thermoformed polystyrene products
ES2340775T3 (es) * 2005-12-15 2010-06-09 Sirap-Gema S.P.A. Envase para la conservacion a vacio o en atmosfera protectora de productos alimenticios que tienden a liberar liquidos.
DE102006004896A1 (de) * 2006-02-03 2007-08-16 Depron B.V. Thermoplastischer Schaum und Verpackungsschale aus thermoplastischem Schaum
NL1033014C2 (nl) * 2006-12-07 2008-06-10 Synbra Tech Bv Werkwijze voor het vervaardigen van een uitgangsmateriaal voor een geschuimd vormdeel, alsmede het geschuimde vormdeel.
KR100862273B1 (ko) * 2008-06-12 2008-10-09 삼진폴리텍 주식회사 폴리스티렌 발포 트레이용 흡수성 마스터 배치 칩 조성물
JP6621292B2 (ja) * 2015-10-13 2019-12-18 デンカ株式会社 熱可塑性樹脂シートおよびこれを用いた容器
US10730681B2 (en) 2016-03-01 2020-08-04 Dow Global Technologies Llc Microcapillary fluid absorbing sheet
EP3299410A1 (de) 2016-09-21 2018-03-28 SUMTEQ GmbH Teilvernetzter polymerschaum mit trübungsmittel
DE102017127934A1 (de) 2017-11-27 2019-05-29 Sumteq Gmbh Pulver aus Schaumstoff
DE102018103457A1 (de) 2018-02-15 2019-08-22 Sumteq Gmbh Ölbindemittel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0090507A1 (en) * 1982-03-22 1983-10-05 Mobil Oil Corporation Condensate absorbant fast food container and method of packaging
DE4325879C3 (de) * 1993-08-02 1999-05-20 Depron Bv Folie aus einem thermoplastischen Kunststoffschaum, Verfahren zu ihrer Herstellung sowie ihre Verwendung
IT1279046B1 (it) * 1995-07-17 1997-12-04 Sirap Gema Spa Vaschetta in materiale plastico per alimenti suscettibili di rilasciare liquidi

Also Published As

Publication number Publication date
PL323815A1 (en) 1998-06-22
DE69607014T2 (de) 2000-08-03
DE69607014D1 (de) 2000-04-13
EP0849309B1 (en) 2000-03-08
ATE190338T1 (de) 2000-03-15
EP0849309A1 (en) 1998-06-24

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