ES2111635T3 - Metodo de mejorar la estabilidad termica oxidativa de polimeros de etileno. - Google Patents

Metodo de mejorar la estabilidad termica oxidativa de polimeros de etileno.

Info

Publication number
ES2111635T3
ES2111635T3 ES92908695T ES92908695T ES2111635T3 ES 2111635 T3 ES2111635 T3 ES 2111635T3 ES 92908695 T ES92908695 T ES 92908695T ES 92908695 T ES92908695 T ES 92908695T ES 2111635 T3 ES2111635 T3 ES 2111635T3
Authority
ES
Spain
Prior art keywords
improving
thermal stability
ethylene polymers
oxidative
oxidative thermal
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
ES92908695T
Other languages
English (en)
Inventor
Morgan M Hughes
Michael E Rowland
Chad A Strait
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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=24664075&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2111635(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of ES2111635T3 publication Critical patent/ES2111635T3/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
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/005—Removal of residual monomers by physical means from solid polymers
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • 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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/762—Vapour stripping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

SE PRESENTA UN METODO PARA MEJORAR LA ESTABILIDAD TERMICA OXIDATIVA DE POLIMEROS DE ETILENO. EL METODO COMPRENDE LA SEPARACION DE LOS MONOMEROS RESIDUALES QUE NO HAN REACCIONADO, DEL SOLVENTE Y DE LAS ESPECIES TERMICAMENTE INESTABLES DEL POLIMERO USANDO UN AGENTE SEPARADOR Y REALIZANDO SUBSECUENTEMENTE UNA DEVOLATILIZACION. EL POLIMERO RESULTANTE SE CARACTERIZA POR TENER UN EXOTERMO OXIDATIVO NO MAYOR DEL 50% DEL POLIMERO ORIGINAL, SEGUN SE MIDE MEDIANTE CALORIMETRIA DE EXPLORACION DIFERENCIAL, ASI COMO MEJORA SUS PROPIEDADES DE OLOR Y SABOR.
ES92908695T 1991-03-04 1992-03-04 Metodo de mejorar la estabilidad termica oxidativa de polimeros de etileno. Expired - Lifetime ES2111635T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66399591A 1991-03-04 1991-03-04

Publications (1)

Publication Number Publication Date
ES2111635T3 true ES2111635T3 (es) 1998-03-16

Family

ID=24664075

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92908695T Expired - Lifetime ES2111635T3 (es) 1991-03-04 1992-03-04 Metodo de mejorar la estabilidad termica oxidativa de polimeros de etileno.

Country Status (9)

Country Link
US (1) US5756659A (es)
EP (1) EP0527225B1 (es)
JP (1) JP3174915B2 (es)
CA (1) CA2081105C (es)
DE (1) DE69224242T2 (es)
ES (1) ES2111635T3 (es)
FI (1) FI924965A7 (es)
TW (1) TW246679B (es)
WO (1) WO1992015621A1 (es)

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US7645474B1 (en) * 2003-07-31 2010-01-12 Advanced Cardiovascular Systems, Inc. Method and system of purifying polymers for use with implantable medical devices
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Also Published As

Publication number Publication date
JPH05506692A (ja) 1993-09-30
EP0527225A1 (en) 1993-02-17
FI924965L (fi) 1992-11-03
CA2081105C (en) 2004-10-05
EP0527225B1 (en) 1998-01-28
JP3174915B2 (ja) 2001-06-11
US5756659A (en) 1998-05-26
WO1992015621A1 (en) 1992-09-17
FI924965A0 (fi) 1992-11-03
DE69224242D1 (de) 1998-03-05
TW246679B (es) 1995-05-01
CA2081105A1 (en) 1992-09-05
DE69224242T2 (de) 1998-05-14
FI924965A7 (fi) 1992-11-03

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