Title:
PROCESS FOR PRODUCING POLYESTER RESIN, POLYESTER FILM, PROCESS FOR PRODUCING POLYESTER FILM, BACK SHEET FOR SOLAR CELL, AND SOLAR-CELL MODULE
Document Type and Number:
WIPO Patent Application WO/2012/081372
Kind Code:
A1
Abstract:
A process for producing a polyester resin, the process including a solid-phase polymerization step in which a polyester that has been obtained by the polycondensation reaction of an aromatic dicarboxylic acid with an aliphatic diol and has an intrinsic viscosity of 0.40-1.0 dL/g is fed to a reaction tank and heated in the solid state and, simultaneously therewith, a mixed gas that comprises ethylene glycol, water, and an inert gas, the molar partial-pressure ratio between the ethylene glycol and the water (molar partial pressure of the ethylene glycol/molar partial pressure of the water) being 0.2-5,000, is fed to the reaction tank to thereby conduct solid-phase polymerization of the polyester, and the polyester resin obtained by the solid-phase polymerization is discharged from the reaction tank.
Inventors:
FUJITA AKIHIDE (JP)
HASHIMOTO KIYOKAZU (JP)
HASHIMOTO KIYOKAZU (JP)
Application Number:
PCT/JP2011/077126
Publication Date:
June 21, 2012
Filing Date:
November 25, 2011
Export Citation:
Assignee:
FUJIFILM CORP (JP)
FUJITA AKIHIDE (JP)
HASHIMOTO KIYOKAZU (JP)
FUJITA AKIHIDE (JP)
HASHIMOTO KIYOKAZU (JP)
International Classes:
C08G63/80; C08G63/181; C08K5/06; C08K5/29; C08K5/353; C08L67/02; H01L31/042
Foreign References:
| JP2004123917A | 2004-04-22 | |||
| JP2010260903A | 2010-11-18 | |||
| JP2010212272A | 2010-09-24 | |||
| JPH09249744A | 1997-09-22 | |||
| JP2010235939A | 2010-10-21 | |||
| JP2002037915A | 2002-02-06 |
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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Claims: