| (19) |
 |
|
(11) |
EP 2 028 201 A8 |
| (12) |
CORRECTED EUROPEAN PATENT APPLICATION |
|
Note: Bibliography reflects the latest situation |
| (15) |
Correction information: |
|
Corrected version no 1 (W1 A1) |
| (48) |
Corrigendum issued on: |
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01.07.2009 Bulletin 2009/27 |
| (43) |
Date of publication: |
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25.02.2009 Bulletin 2009/09 |
| (22) |
Date of filing: 04.07.2008 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL
PT RO SE SI SK TR |
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Designated Extension States: |
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AL BA MK RS |
| (30) |
Priority: |
31.07.2007 JP 2007199961
|
| (71) |
Applicant: Daikin Industries, Ltd. |
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Osaka 530-8323 (JP) |
|
| (72) |
Inventors: |
|
- Kishine, Mitsuru
c/o Daikin Industries, Ltd.
Osaka 566-8585 (JP)
- Kitaichi, Masanori
c/o Daikin Industries, Ltd.
Osaka 566-8585 (JP)
- Morita, Shigeru
c/o Daikin Industries Ltd.
Osaka 566-8585 (JP)
- Tanaka, Yoshiki
c/o Daikin Industries, Ltd.
Osaka 566-8585 (JP)
- Ota, Daisuke
c/o Daikin Industries, Ltd.
Osaka 566-8585 (JP)
|
| (74) |
Representative: HOFFMANN EITLE |
|
Patent- und Rechtsanwälte
Arabellastraße 4
81925 München
81925 München (DE) |
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| |
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| (54) |
Method for producing a fluoroelastomer |
(57) The present invention provides a method for producing a fluoroelastomer using an
emulsifier which is inexpensive and hardly remains in product polymers. The present
invention is related to a method for producing a fluoroelastomer, wherein vinylidene
fluoride and at least one fluoroolefin monomer other than vinylidene fluoride are
copolymerized in the manner of an emulsion polymerization in the presence of an emulsifier
represented by C
5F
11COOM, wherein M represents H, NH
4 or an alkali metal.