IT948929B - PROCEDURE FOR THE DEPOLYMERIZATION OF POLYTETRAFLUOROETHYLENE - Google Patents

PROCEDURE FOR THE DEPOLYMERIZATION OF POLYTETRAFLUOROETHYLENE

Info

Publication number
IT948929B
IT948929B IT67211/72A IT6721172A IT948929B IT 948929 B IT948929 B IT 948929B IT 67211/72 A IT67211/72 A IT 67211/72A IT 6721172 A IT6721172 A IT 6721172A IT 948929 B IT948929 B IT 948929B
Authority
IT
Italy
Prior art keywords
depolymerization
polytetrafluoroethylene
procedure
Prior art date
Application number
IT67211/72A
Other languages
Italian (it)
Original Assignee
Liquid Nitrogen Processing
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 Liquid Nitrogen Processing filed Critical Liquid Nitrogen Processing
Application granted granted Critical
Publication of IT948929B publication Critical patent/IT948929B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C07C17/367—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms by depolymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IT67211/72A 1971-02-02 1972-01-25 PROCEDURE FOR THE DEPOLYMERIZATION OF POLYTETRAFLUOROETHYLENE IT948929B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00111963A US3832411A (en) 1971-02-02 1971-02-02 Method for the depolymerization of polytetrafluoroethylene

Publications (1)

Publication Number Publication Date
IT948929B true IT948929B (en) 1973-06-11

Family

ID=22341390

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67211/72A IT948929B (en) 1971-02-02 1972-01-25 PROCEDURE FOR THE DEPOLYMERIZATION OF POLYTETRAFLUOROETHYLENE

Country Status (6)

Country Link
US (1) US3832411A (en)
JP (1) JPS5238525B1 (en)
DE (1) DE2204141B2 (en)
FR (1) FR2124212B1 (en)
GB (1) GB1361341A (en)
IT (1) IT948929B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128589A (en) * 1977-06-22 1978-12-05 Hughes Aircraft Company Generation of CF4 from Teflon for reactive atmosphere processing and growth of metal fluorides
DE4334015A1 (en) * 1993-10-06 1995-04-13 Hoechst Ag Process for the preparation of fluorinated monomers
RU2082709C1 (en) * 1994-05-19 1997-06-27 Научно-внедренческая фирма "Поликом, Инк" Method and installation for producing monomer via pyrolytic decomposition of corresponding polymer
CN1323993C (en) * 2002-03-01 2007-07-04 大金工业株式会社 Process for producing fluoromonomer
US6919015B2 (en) * 2002-12-16 2005-07-19 3M Innovative Properties Company Process for manufacturing fluoroolefins
GB0817873D0 (en) * 2008-10-01 2008-11-05 3M Innovative Properties Co Process of making fluoroelefins by thermal decomposition of fluorinated materials
RU2469056C1 (en) * 2011-06-16 2012-12-10 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method of producing composite material based on polytetrafluoroethylene and silicon dioxide
RU2497846C1 (en) * 2012-04-24 2013-11-10 Федеральное государственное бюджетное учреждение науки Байкальский институт природопользования Сибирского отделения Российской академии наук (БИП СО РАН) Method of recycling polytetrafluoroethylene wastes
RU2656488C1 (en) * 2017-05-03 2018-06-05 Общество с ограниченной ответственностью "Малое инновационное предприятие "Байкальский научный центр прочности" Method of recycling polytetrafluoroethylene wastes
US20230002297A1 (en) 2019-12-23 2023-01-05 3M Innovative Properties Company Process of Making Fluoroolefins by Thermal Decomposition of Fluorinated Ionomers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394581A (en) * 1943-10-04 1946-02-12 Kinetic Chemicals Inc Pyrolysis of tetrafluoroethylene polymer
US2406153A (en) * 1944-06-23 1946-08-20 Du Pont Depolymerization of polymeric tetrafluoroethylene
DE1003700B (en) * 1954-07-30 1957-03-07 Hoechst Ag Process for the production of low molecular weight chlorofluorocarbons with a liquid or waxy consistency
NL288069A (en) * 1962-01-24
GB1041592A (en) * 1962-02-21 1966-09-07 Daikin Ind Ltd Apparatus for the pyrolysis of chlorodifluoromethane

Also Published As

Publication number Publication date
FR2124212A1 (en) 1972-09-22
DE2204141B2 (en) 1974-05-30
GB1361341A (en) 1974-07-24
US3832411A (en) 1974-08-27
JPS5238525B1 (en) 1977-09-29
DE2204141A1 (en) 1972-08-17
FR2124212B1 (en) 1973-11-23

Similar Documents

Publication Publication Date Title
IT1027056B (en) SOLUTION AND PROCEDURE FOR THE ELET TRODEPOSITION OF THE OROMO
IT973901B (en) PROCEDURE FOR THE PRODUCTION OF HALOGENHYDRINES
IT957780B (en) APPARATUS TO HELP THE CIRCULATION OF BLOOD
IT958044B (en) PROCEDURE FOR THE PRODUCTION OF POLYTHIOBISPHENOLS
IT973826B (en) PROCEDURE FOR THE SEPARATION OF HYDROCARBE
IT963275B (en) COKE EXTINGUISHING METHOD
IT948929B (en) PROCEDURE FOR THE DEPOLYMERIZATION OF POLYTETRAFLUOROETHYLENE
AR197310A1 (en) PROCEDURE FOR THE PRODUCTION OF HETACEFALEXIN
IT958826B (en) PROCEDURE FOR THE PRODUCTION OF 4 METHYL I PENTENE
IT952991B (en) PROCEDURE FOR THE PRODUCTION OF ETHYLENE COPOLYMERS
IT957776B (en) PROCEDURE FOR THE PRODUCTION OF RUBBER COMPOUNDS
IT1016337B (en) PROCEDURE FOR THE SELECTIVE VINYLANALOGUE POLYMERIZATION OF NORPORMENE
IT958608B (en) PROCEDURE FOR THE PRODUCTION OF CO POLIALKENAMERI
IT957888B (en) PROCEDURE FOR THE PRODUCTION OF FINELY DIVIDED POLYETHYLENE
IT970686B (en) PROCEDURE FOR THE REACTIVE SUPERPURIFICATION OF PROPYLENE
IT966300B (en) PROCEDURE FOR THE PRODUCTION OF DIANTHRACHINONYLS
IT957874B (en) PROCEDURE FOR THE PRODUCTION OF FINELY DIVIDED POLYETHYLENE
CH542890A (en) Process for the preparation of polyethylene
IT971107B (en) PROCEDURE FOR THE POLYMERIZATION OF TETRAHYDROFURAN
IT1030492B (en) PROCEDURE FOR THE DESULPHORATION OF COKE
IT1045446B (en) PROCEDURE FOR THE PRODUCTION OF ANTHRACHINONE
IT954404B (en) PROCEDURE FOR THE PRODUCTION OF OR ADMINOBENZONITRILS
IT966299B (en) PROCEDURE FOR THE PRODUCTION OF I, DIANTHRACHINONYLS AND RELATED FLAVANTRONES
IT954654B (en) PROCEDURE FOR THE PREPARATION OF SALIGENOL
IT1030118B (en) PROCEDURE FOR THE PRODUCTION OF MALEDNITRILE