CH560232A5 - - Google Patents

Info

Publication number
CH560232A5
CH560232A5 CH1079272A CH1079272A CH560232A5 CH 560232 A5 CH560232 A5 CH 560232A5 CH 1079272 A CH1079272 A CH 1079272A CH 1079272 A CH1079272 A CH 1079272A CH 560232 A5 CH560232 A5 CH 560232A5
Authority
CH
Switzerland
Application number
CH1079272A
Original Assignee
Hoechst 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
Priority claimed from DE19712136639 external-priority patent/DE2136639C3/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of CH560232A5 publication Critical patent/CH560232A5/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment
    • C08F8/50Partial depolymerisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92514Pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/78Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80Thermal 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
    • B29C48/802Heating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00Chemical modification of a polymer
    • C08F2810/10Chemical 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)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
CH1079272A 1971-07-22 1972-07-19 CH560232A5 (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712136639 DE2136639C3 (de) 1971-07-22 Verfahren zur Herstellung von Fluorcarbonwachsen

Publications (1)

Publication Number Publication Date
CH560232A5 true CH560232A5 (en:Method) 1975-03-27

Family

ID=5814445

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1079272A CH560232A5 (en:Method) 1971-07-22 1972-07-19

Country Status (15)

Country Link
US (1) US3813449A (en:Method)
JP (1) JPS5143080B1 (en:Method)
AU (1) AU465629B2 (en:Method)
BE (1) BE786649R (en:Method)
BR (1) BR7204826D0 (en:Method)
CA (1) CA965900A (en:Method)
CH (1) CH560232A5 (en:Method)
ES (1) ES404938A1 (en:Method)
FI (1) FI55347C (en:Method)
FR (1) FR2146476B2 (en:Method)
GB (1) GB1400179A (en:Method)
IL (1) IL39946A (en:Method)
IT (1) IT1017513B (en:Method)
SE (1) SE394439B (en:Method)
ZA (1) ZA725036B (en:Method)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1191635B (it) * 1984-11-14 1988-03-23 Central Glass Co Ltd Procedimento di conversione di un polimero elevato contenente fluoro in un polimeto a peso molecolare inferiore
RU2124525C1 (ru) * 1998-05-05 1999-01-10 Общество с ограниченной ответственностью Фирма "АРТО" Способ обработки фторопласта
US7176265B2 (en) * 2002-11-22 2007-02-13 E. I. Du Pont De Nemours And Company Directly polymerized low molecular weight granular polytetrafluoroethylene
TWI492978B (zh) 2013-07-24 2015-07-21 Grand Tek Advance Material Science Co Ltd 複合材料微粉、陶瓷塗料、保護塗層、與複合材料微粉的形成方法
RU2559891C1 (ru) * 2014-05-29 2015-08-20 Федеральное государственное унитарное предприятие "Российский научный центр "Прикладная химия" Способ переработки политетрафторэтилена
CN114423818A (zh) * 2019-09-19 2022-04-29 古吉拉特氟化物有限公司 制备低分子量聚四氟乙烯微粉的挤出方法
EP4157604A4 (en) * 2020-05-26 2024-07-10 Zeus Company LLC MICROPARTICLES BASED ON THERMOMECHANICALLY DEGRADED PTFE

Also Published As

Publication number Publication date
IL39946A0 (en) 1972-09-28
CA965900A (en) 1975-04-08
IT1017513B (it) 1977-08-10
DE2136639B2 (de) 1976-12-02
FR2146476B2 (en:Method) 1976-10-29
FI55347C (fi) 1979-07-10
FI55347B (fi) 1979-03-30
ES404938A1 (es) 1975-06-16
IL39946A (en) 1975-08-31
AU465629B2 (en) 1975-10-02
DE2136639A1 (de) 1973-02-01
JPS5143080B1 (en:Method) 1976-11-19
FR2146476A2 (en:Method) 1973-03-02
GB1400179A (en) 1975-07-16
SE394439B (sv) 1977-06-27
ZA725036B (en) 1973-05-30
AU4474672A (en) 1974-01-24
BE786649R (fr) 1973-01-24
BR7204826D0 (pt) 1973-06-28
US3813449A (en) 1974-05-28

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Legal Events

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PL Patent ceased
PL Patent ceased