Title:
PROCESS FOR PRODUCING ETHYLENE/&agr -OLEFIN/UNCONJUGATED POLYENE COPOLYMER AND ETHYLENE/&agr -OLEFIN/UNCONJUGATED POLYENE COPOLYMER
Document Type and Number:
WIPO Patent Application WO/2004/065435
Kind Code:
A1
Abstract:
A process for producing an ethylene/&agr -olefin/unconjugated polyene copolymer, which comprises copolymerizing ethylene, an &agr -olefin, and an unconjugated polyene in a hydrocarbon solvent with the aid of a transition metal compound catalyst to obtain a solution containing a copolymer and removing the unreacted monomers and the hydrocarbon solvent from the solution without removing the residual catalyst, characterized in that the monomers are copolymerized under the conditions of a polymerization temperature of 100°C or higher and a polymerization pressure of 2.7 MPa or higher while regulating the concentration of the unconjugated polyene in the polymerization mixture solution to a value less than the maximum unconjugated-polyene concentration Cmax (mol/L) shown below: Cmax = 0.050 (mol/L) when the iodine value (IV) of the copolymer is 9.0 to less than 17.0 g/100g, and Cmax = 0.104 (mol/L) when the iodine value (IV) of the copolymer is not lower than 17.0 g/100g.
Inventors:
MATSUURA SADAHIKO (JP)
MURAKAMI HIDETATSU (JP)
HASADA YASUHIRO (JP)
SAITO JUNJI (JP)
FUJITA TERUNORI (JP)
MATSUI SHIGEKAZU (JP)
MURAKAMI HIDETATSU (JP)
HASADA YASUHIRO (JP)
SAITO JUNJI (JP)
FUJITA TERUNORI (JP)
MATSUI SHIGEKAZU (JP)
Application Number:
PCT/JP2004/000586
Publication Date:
August 05, 2004
Filing Date:
January 23, 2004
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
MATSUURA SADAHIKO (JP)
MURAKAMI HIDETATSU (JP)
HASADA YASUHIRO (JP)
SAITO JUNJI (JP)
FUJITA TERUNORI (JP)
MATSUI SHIGEKAZU (JP)
MATSUURA SADAHIKO (JP)
MURAKAMI HIDETATSU (JP)
HASADA YASUHIRO (JP)
SAITO JUNJI (JP)
FUJITA TERUNORI (JP)
MATSUI SHIGEKAZU (JP)
International Classes:
C08F4/64; C08F8/00; C08F210/18; (IPC1-7): C08F210/18; C08F4/64
Domestic Patent References:
| WO2000059962A1 | 2000-10-12 |
Foreign References:
| JPS638408A | 1988-01-14 | |||
| JPH02142807A | 1990-05-31 | |||
| JPH10512600A | 1998-12-02 | |||
| JPH0971617A | 1997-03-18 | |||
| JPH05262827A | 1993-10-12 | |||
| JPH11315109A | 1999-11-16 |
Other References:
See also references of EP 1586591A4
Attorney, Agent or Firm:
Suzuki, Shunichiro (Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo, JP)
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