CA965900A - Process for the preparation of fluorocarbon waxes - Google Patents

Process for the preparation of fluorocarbon waxes

Info

Publication number
CA965900A
CA965900A CA147,436A CA147436A CA965900A CA 965900 A CA965900 A CA 965900A CA 147436 A CA147436 A CA 147436A CA 965900 A CA965900 A CA 965900A
Authority
CA
Canada
Prior art keywords
preparation
fluorocarbon waxes
fluorocarbon
waxes
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
CA147,436A
Other languages
English (en)
Other versions
CA147436S (en
Inventor
Robert Hartwimmer
Eduard Weiss
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.)
Hoechst AG
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
Application granted granted Critical
Publication of CA965900A publication Critical patent/CA965900A/en
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)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
CA147,436A 1971-07-22 1972-07-19 Process for the preparation of fluorocarbon waxes Expired CA965900A (en)

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
CA965900A true CA965900A (en) 1975-04-08

Family

ID=5814445

Family Applications (1)

Application Number Title Priority Date Filing Date
CA147,436A Expired CA965900A (en) 1971-07-22 1972-07-19 Process for the preparation of fluorocarbon waxes

Country Status (15)

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

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
GB2603416A (en) * 2019-09-19 2022-08-03 Gujarat Fluorochemicals Ltd An extrusion process for preparing a low molecular weight polytetrafluoroethylene micropowder
MX2022014778A (es) 2020-05-26 2023-01-16 Zeus Company Inc Microparticulas de ptfe termomecanicamente degradado.

Also Published As

Publication number Publication date
DE2136639B2 (de) 1976-12-02
IL39946A0 (en) 1972-09-28
AU465629B2 (en) 1975-10-02
ES404938A1 (es) 1975-06-16
AU4474672A (en) 1974-01-24
CH560232A5 (is") 1975-03-27
BR7204826D0 (pt) 1973-06-28
FR2146476A2 (is") 1973-03-02
US3813449A (en) 1974-05-28
BE786649R (fr) 1973-01-24
IT1017513B (it) 1977-08-10
FR2146476B2 (is") 1976-10-29
JPS5143080B1 (is") 1976-11-19
FI55347B (fi) 1979-03-30
IL39946A (en) 1975-08-31
ZA725036B (en) 1973-05-30
FI55347C (fi) 1979-07-10
DE2136639A1 (de) 1973-02-01
GB1400179A (en) 1975-07-16
SE394439B (sv) 1977-06-27

Similar Documents

Publication Publication Date Title
CA1014146A (en) Process for the preparation of desacetoxycephalosporins
CA995693A (en) Process for the preparation of dihydroxybenzenes
CA972744A (en) PROCESS FOR THE PREPARATION OF 3.alpha.-HYDROXYSTEROIDS
CA965900A (en) Process for the preparation of fluorocarbon waxes
CA928720A (en) Process for the preparation of benzylacetate
CA983053A (en) Process for the preparation of higher alkenes
CA949980A (en) Process for the preparation of 2,2,2-trifluoroethyl-difluoromethyl ether
CA972746A (en) Process for the preparation of methylcobalamine
CA989840A (en) Process for the preparation of benzylpyrimidines
CA958148A (en) Process for the preparation of fluorocarbon waxes
CA979019A (en) Process for the preparation of dimethyldecalins
CA956320A (en) Process for the preparation of 1-monosubstituted-carbamoyl-2-benzimidazolyl-carbamates
CA982582A (en) Process for the preparation of quinoxaline di-n-oxides
CA990307A (en) Process for the preparation of 1-indancarboxylic acids
CA942306A (en) Process for the preparation of 1-transcinnamyl-4-diphenylmethylpiperazine
AU465178B2 (en) Process for the preparation of dea-steroids
CA976979A (en) Process for the preparation of diaminomaleonitrile
CA999306A (en) Process for the preparation of 1-indancarboxylic acids
CA868358A (en) Process for the preparation of tritylamines
CA888196A (en) Process for the preparation of benzene-sulphonamides
CA863981A (en) Process for the preparation of p-toluenesulfochloride
CA883923A (en) Process for the preparation of trans-polypentenamer
CA1015363A (en) Process for the preparation of dea-steroids
CA885449A (en) Process for the preparation of hexahydromethanobenzazocines
CA880350A (en) Process for the preparation of phenylethanolamines