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Patent Searching and Data


Title:
GAS−BARRIER FILM AND GAS−BARRIER COATING AGENT, AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2003/024714
Kind Code:
A1
Abstract:
A laminate which has a substrate layer comprising a thermoplastic resin film and a gas−barrier layer comprising a hydrolyzate of a silicon alkoxide, a layer silicate and a polyvinyl alcohol based resin, characterized in that the gas−barrier layer exhibits a radius of gyration (Rg) of a scatterer of 2.4 μm or less as measured by the light scattering method, and the gas−barrier layer has a silicon alkoxide or the hydrolyzate thereof being present between the layers of the layer silicate. A film comprising the laminate exhibits excellent gas−barrier properties even in a high humidity atmosphere of more than 90 % RH.

Inventors:
INUI YOHJI (JP)
MOCHIZUKI NAOTO (JP)
MASADA ISAO (JP)
ISHIMOTO RYUJI (JP)
UMEKAWA HIDEKI (JP)
HONDA HIRONORI (JP)
KIMURA YOSHIHIRO (JP)
Application Number:
PCT/JP2002/009453
Publication Date:
March 27, 2003
Filing Date:
September 13, 2002
Export Citation:
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Assignee:
TOKUYAMA CORP (JP)
SUN TOX CO LTD (JP)
INUI YOHJI (JP)
MOCHIZUKI NAOTO (JP)
MASADA ISAO (JP)
ISHIMOTO RYUJI (JP)
UMEKAWA HIDEKI (JP)
HONDA HIRONORI (JP)
KIMURA YOSHIHIRO (JP)
International Classes:
B32B27/06; B32B27/08; C08J7/043; C08J7/048; C08K13/02; C08L29/04; C09D129/04; C08K3/34; C08K5/541; C08K7/00; C08L71/02; (IPC1-7): B32B27/30; C08J7/04; C09D129/04
Foreign References:
JP2001277443A2001-10-09
JPH11165369A1999-06-22
EP0805177A21997-11-05
Other References:
See also references of EP 1428657A4
Attorney, Agent or Firm:
Odajima, Heikichi (Akasaka 1-chome Minato-ku, Tokyo, JP)
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