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Patent Searching and Data


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)
Application Number:
PCT/JP2004/012439
Publication Date:
March 10, 2005
Filing Date:
August 24, 2004
Export Citation:
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Assignee:
OHMI TADAHIRO (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:
JPH11129319A1999-05-18
JP2000135713A2000-05-16
JPH10235643A1998-09-08
JP2001073164A2001-03-21
JPS61241105A1986-10-27
JPS647330U1989-01-17
JPS59227412A1984-12-20
JPS62280205A1987-12-05
JPH02122886A1990-05-10
JPH0976324A1997-03-25
JPH071449A1995-01-06
Attorney, Agent or Firm:
Goto, Yosuke (4-10 Nishishinbashi 1-chome, Minato-k, Tokyo 03, JP)
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