Title:
APPARATUS FOR PRODUCING POLYMER
Document Type and Number:
WIPO Patent Application WO/2005/021227
Kind Code:
A1
Abstract:
An apparatus for producing a polymer, wherein the surface of a member contacting with the polymer of a device for melting and molding a raw material polymer has been subjected to a passivation treatment and is covered by a passive film, wherein ultra-pure water is used as a solvent to be injected into a molten polymer, to prevent the incorporation of a contaminant, and wherein an inert gas is fed to the line for discharging a gas, to prevent the contamination by back diffusion. As the above passive film, an aluminum oxide film or a chromium oxide film is preferred.
Inventors:
OHMI TADAHIRO (JP)
TADA MITSUSHI (JP)
JIMBO TOSHIHIKO (JP)
TADA MITSUSHI (JP)
JIMBO TOSHIHIKO (JP)
Application Number:
PCT/JP2004/012439
Publication Date:
March 10, 2005
Filing Date:
August 24, 2004
Export Citation:
Assignee:
OHMI TADAHIRO (JP)
ZEON CORP (JP)
TADA MITSUSHI (JP)
JIMBO TOSHIHIKO (JP)
ZEON CORP (JP)
TADA MITSUSHI (JP)
JIMBO TOSHIHIKO (JP)
International Classes:
B29B7/84; B29C48/76; C08F6/00; C08F6/10; (IPC1-7): B29B7/84; C08F6/10
Foreign References:
| JPH11129319A | 1999-05-18 | |||
| JP2000135713A | 2000-05-16 | |||
| JPH10235643A | 1998-09-08 | |||
| JP2001073164A | 2001-03-21 | |||
| JPS61241105A | 1986-10-27 | |||
| JPS647330U | 1989-01-17 | |||
| JPS59227412A | 1984-12-20 | |||
| JPS62280205A | 1987-12-05 | |||
| JPH02122886A | 1990-05-10 | |||
| JPH0976324A | 1997-03-25 | |||
| JPH071449A | 1995-01-06 |
Attorney, Agent or Firm:
Goto, Yosuke (4-10 Nishishinbashi 1-chome, Minato-k, Tokyo 03, JP)
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