JPS55116713A - Preparation of fluorine-containing elastic copolymer - Google Patents

Preparation of fluorine-containing elastic copolymer

Info

Publication number
JPS55116713A
JPS55116713A JP2577879A JP2577879A JPS55116713A JP S55116713 A JPS55116713 A JP S55116713A JP 2577879 A JP2577879 A JP 2577879A JP 2577879 A JP2577879 A JP 2577879A JP S55116713 A JPS55116713 A JP S55116713A
Authority
JP
Japan
Prior art keywords
fluorine
initiation
vinylidene fluoride
preparation
containing elastic
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.)
Granted
Application number
JP2577879A
Other languages
Japanese (ja)
Other versions
JPS584049B2 (en
Inventor
Masanaga Tatemoto
Masahiko Oka
Yasuyoshi Furukawa
Shingo Tanigawa
Yutaka Ueda
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.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to JP54025778A priority Critical patent/JPS584049B2/en
Publication of JPS55116713A publication Critical patent/JPS55116713A/en
Publication of JPS584049B2 publication Critical patent/JPS584049B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a fluorine-containing elastic polymer having improved physical properties and processability, by copolymerizing vinylidene fluoride and other fluorine-containing monomer under specific conditions.
CONSTITUTION: Vinylidene fluoride is copolymerized with one or more other fluorine-containing nonomers, e.g. tetrafluoroethylene, in the presence of an inorganic free radical polymerization initiator in an aqueous medium at a radical formation rate R(m mole/l-min) of 1.0W3.5×10-2 and 1.5×10-2W2.5×10-5 in the period about 10% of the total polymerization time after the initiation and about 10% before the termination respectively. The R 10% before the termination is preferably 1/10 or less of that 10% after the initiation, and the ratio of the number of moles (Mp) of monomers to that (ΔI) of decomposed initiator per 5min is changed from 10W100 to 3,000W200,000.
COPYRIGHT: (C)1980,JPO&Japio
JP54025778A 1979-03-05 1979-03-05 Method for producing fluorine-containing elastic copolymer Expired JPS584049B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54025778A JPS584049B2 (en) 1979-03-05 1979-03-05 Method for producing fluorine-containing elastic copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54025778A JPS584049B2 (en) 1979-03-05 1979-03-05 Method for producing fluorine-containing elastic copolymer

Publications (2)

Publication Number Publication Date
JPS55116713A true JPS55116713A (en) 1980-09-08
JPS584049B2 JPS584049B2 (en) 1983-01-24

Family

ID=12175292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54025778A Expired JPS584049B2 (en) 1979-03-05 1979-03-05 Method for producing fluorine-containing elastic copolymer

Country Status (1)

Country Link
JP (1) JPS584049B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03130552U (en) * 1990-04-13 1991-12-27

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US370529A (en) * 1887-09-27 John w
US383930A (en) * 1888-06-05 williams
US3051677A (en) * 1955-04-27 1962-08-28 Du Pont Copolymer elastomer of vinylidenefluoride and hexafluoropropene
US3845024A (en) * 1972-11-22 1974-10-29 Du Pont Continuous process for production of fluoroelastomers
JPS5246998A (en) * 1975-10-08 1977-04-14 Kureha Chem Ind Co Ltd Plastic multi-layerpackaging material
US4032699A (en) * 1975-09-15 1977-06-28 Minnesota Mining And Manufacturing Company Fluid resistant terpolymer compositions

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US370529A (en) * 1887-09-27 John w
US383930A (en) * 1888-06-05 williams
US3051677A (en) * 1955-04-27 1962-08-28 Du Pont Copolymer elastomer of vinylidenefluoride and hexafluoropropene
US3845024A (en) * 1972-11-22 1974-10-29 Du Pont Continuous process for production of fluoroelastomers
US4032699A (en) * 1975-09-15 1977-06-28 Minnesota Mining And Manufacturing Company Fluid resistant terpolymer compositions
JPS5246998A (en) * 1975-10-08 1977-04-14 Kureha Chem Ind Co Ltd Plastic multi-layerpackaging material

Also Published As

Publication number Publication date
JPS584049B2 (en) 1983-01-24

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