Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2007-01-02
2007-01-02
Nakarani, D. S. (Department: 1773)
Stock material or miscellaneous articles
Composite
Of silicon containing
C427S341000, C427S343000, C427S344000, C427S387000, C427S397700, C524S446000
Reexamination Certificate
active
10490162
ABSTRACT:
Provided are a gas-barrier film which is a laminate comprising a substrate layer comprising a thermoplastic resin film and a gas-barrier layer comprising a hydrolysate of a silicon alkoxide, a stratified silicate and a polyvinyl alcohol base resin, wherein a radius (Rg) of gyration of a scattering matter which is measured by light scattering in the gas-barrier layer described above is 2.4 μm or less, and the silicon alkoxide and/or the hydrolysate thereof are present between the layers of the stratified silicate present in the above gas-barrier layer. The above film shows an excellent gas-barrier property even under such a high humidity as exceeding 90% RH.
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Honda Hironori
Inui Yoji
Ishimoto Ryuji
Kimura Yoshihiro
Masada Isao
Nakarani D. S.
Sun-Tox Co., Ltd.
Tokuyama Corporation
Wenderoth , Lind & Ponack, L.L.P.
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