IE42823L - Suspension polymers of tetrafluoroethylene - Google Patents

Suspension polymers of tetrafluoroethylene

Info

Publication number
IE42823L
IE42823L IE111876A IE111876A IE42823L IE 42823 L IE42823 L IE 42823L IE 111876 A IE111876 A IE 111876A IE 111876 A IE111876 A IE 111876A IE 42823 L IE42823 L IE 42823L
Authority
IE
Ireland
Prior art keywords
tetrafluoroethylene
suspension polymers
modifiers
formula
suspension
Prior art date
Application number
IE111876A
Other versions
IE42823B1 (en
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 DE2523569A external-priority patent/DE2523569C3/en
Priority claimed from DE2617829A external-priority patent/DE2617829C2/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of IE42823L publication Critical patent/IE42823L/en
Publication of IE42823B1 publication Critical patent/IE42823B1/en

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
    • C08F214/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F214/18—Monomers containing fluorine
    • C08F214/26—Tetrafluoroethene
    • C08F214/262—Tetrafluoroethene with fluorinated vinyl ethers

Landscapes

  • 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)
  • Polymerisation Methods In General (AREA)

Abstract

Tetrafluoroethylene is polymerised by the suspension process in the presence of modifiers. The modifiers employed are from 0.0004 to 0.0029 mol %, based on the tetrafluoroethylene, of a compound of formula I and/or II or of the formula III. Rf and n are as defined in Claim 1 or 2. The polymers prepared according to the invention can be used to produce press-sintered blocks without cracking. <IMAGE> [GB1503129A]
IE111876A 1975-05-28 1976-05-27 Process for the manufacture of suspension polymers of tetrafluoroethylene IE42823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2523569A DE2523569C3 (en) 1975-05-28 1975-05-28 Process for the polymerization of tetrafluoroethylene by the suspension process
DE2617829A DE2617829C2 (en) 1976-04-23 1976-04-23 Process for the preparation of suspension polymers of tetrafluoroethylene

Publications (2)

Publication Number Publication Date
IE42823L true IE42823L (en) 1976-11-28
IE42823B1 IE42823B1 (en) 1980-10-22

Family

ID=25768947

Family Applications (1)

Application Number Title Priority Date Filing Date
IE111876A IE42823B1 (en) 1975-05-28 1976-05-27 Process for the manufacture of suspension polymers of tetrafluoroethylene

Country Status (16)

Country Link
JP (1) JPS5931524B2 (en)
AT (1) AT343359B (en)
AU (1) AU502321B2 (en)
CA (1) CA1097842A (en)
CH (1) CH623064A5 (en)
DD (1) DD125632A5 (en)
DK (1) DK230976A (en)
ES (1) ES448136A1 (en)
FR (1) FR2312515A1 (en)
GB (1) GB1503129A (en)
IE (1) IE42823B1 (en)
IT (1) IT1060683B (en)
LU (1) LU75027A1 (en)
NL (1) NL189566C (en)
SE (1) SE7605941L (en)
YU (1) YU130176A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544040C2 (en) * 1975-10-02 1981-09-24 Hoechst Ag, 6000 Frankfurt Process for the production of modified tetrafluoroethylene dispersion polymers
EP0002809B1 (en) * 1977-12-27 1981-10-14 Hoechst Aktiengesellschaft Fluorised thermoplastic polymer
EP0583481B1 (en) * 1992-02-05 1999-11-10 Daikin Industries, Ltd. Polytetrafluoroethylene powder for molding

Also Published As

Publication number Publication date
IE42823B1 (en) 1980-10-22
DD125632A5 (en) 1977-05-04
NL189566B (en) 1992-12-16
SE7605941L (en) 1976-11-29
GB1503129A (en) 1978-03-08
FR2312515A1 (en) 1976-12-24
NL189566C (en) 1993-05-17
ATA386976A (en) 1977-09-15
CH623064A5 (en) 1981-05-15
JPS51146590A (en) 1976-12-16
AT343359B (en) 1978-05-26
YU130176A (en) 1982-06-30
AU1434576A (en) 1977-12-01
AU502321B2 (en) 1979-07-19
IT1060683B (en) 1982-08-20
JPS5931524B2 (en) 1984-08-02
NL7605469A (en) 1976-11-30
LU75027A1 (en) 1977-02-14
DK230976A (en) 1976-11-29
CA1097842A (en) 1981-03-17
ES448136A1 (en) 1977-11-01
FR2312515B1 (en) 1980-09-12

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