FR1377951A - Procédé pour la dégradation thermique commandée de thermoplastes - Google Patents

Procédé pour la dégradation thermique commandée de thermoplastes

Info

Publication number
FR1377951A
FR1377951A FR958577A FR958577A FR1377951A FR 1377951 A FR1377951 A FR 1377951A FR 958577 A FR958577 A FR 958577A FR 958577 A FR958577 A FR 958577A FR 1377951 A FR1377951 A FR 1377951A
Authority
FR
France
Prior art keywords
thermoplasts
thermal degradation
controlled thermal
controlled
degradation
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
Application number
FR958577A
Other languages
English (en)
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.)
Huels AG
Original Assignee
Chemische Werke Huels AG
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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to FR958577A priority Critical patent/FR1377951A/fr
Application granted granted Critical
Publication of FR1377951A publication Critical patent/FR1377951A/fr
Expired 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/50—Partial depolymerisation
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/802—Heating
    • 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
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
FR958577A 1963-01-09 1963-12-27 Procédé pour la dégradation thermique commandée de thermoplastes Expired FR1377951A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR958577A FR1377951A (fr) 1963-01-09 1963-12-27 Procédé pour la dégradation thermique commandée de thermoplastes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC0028868 1963-01-09
FR958577A FR1377951A (fr) 1963-01-09 1963-12-27 Procédé pour la dégradation thermique commandée de thermoplastes

Publications (1)

Publication Number Publication Date
FR1377951A true FR1377951A (fr) 1964-11-06

Family

ID=25969627

Family Applications (1)

Application Number Title Priority Date Filing Date
FR958577A Expired FR1377951A (fr) 1963-01-09 1963-12-27 Procédé pour la dégradation thermique commandée de thermoplastes

Country Status (1)

Country Link
FR (1) FR1377951A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230665A1 (fr) * 1973-05-21 1974-12-20 Dart Ind Inc
EP0069603A1 (fr) * 1981-06-22 1983-01-12 BP Chimie Société Anonyme Procédé de traitement de polyéthylène de basse densité linéaire par des peroxydes organiques, générateurs de radicaux libres
EP0074194A2 (fr) * 1981-08-22 1983-03-16 Showa Denko Kabushiki Kaisha Copolymère statistique de propylène et d'éthylène, procédé de préparation de celui-ci et film formé à partir de ce copolymère
EP0351866A2 (fr) * 1988-07-22 1990-01-24 Montell North America Inc. Traitement thermique de polypropylène irradié

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230665A1 (fr) * 1973-05-21 1974-12-20 Dart Ind Inc
EP0069603A1 (fr) * 1981-06-22 1983-01-12 BP Chimie Société Anonyme Procédé de traitement de polyéthylène de basse densité linéaire par des peroxydes organiques, générateurs de radicaux libres
EP0074194A2 (fr) * 1981-08-22 1983-03-16 Showa Denko Kabushiki Kaisha Copolymère statistique de propylène et d'éthylène, procédé de préparation de celui-ci et film formé à partir de ce copolymère
EP0074194A3 (en) * 1981-08-22 1983-11-30 Showa Denko K.K. Propylene-ethylene random copolymer, production process thereof, and film derived therefrom
EP0351866A2 (fr) * 1988-07-22 1990-01-24 Montell North America Inc. Traitement thermique de polypropylène irradié
EP0351866A3 (fr) * 1988-07-22 1992-04-08 Montell North America Inc. Traitement thermique de polypropylène irradié

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