Composition for film formation, laminate, film, sheet base material, method for producing composition for film formation, and method for preparing a cellulose dispersion
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United States of America Patent
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Nov 1, 2016
Grant Date -
Jul 24, 2014
app pub date -
Mar 21, 2014
filing date -
Sep 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
[Problem] To provide a composition for film formation comprising cellulose fibers, a layered inorganic compound, and a water-soluble polymer, which are each dispersed on nano level, a method for preparing a cellulose dispersion capable of forming a moisture-resistant film containing cellulose nanofibers, a gas-barrier laminate obtained by use of the dispersion, and a packaging material using the laminate. [Solution] A film-forming composition comprising at least cellulose fibers and a swollen inorganic compound is prepared. The method of preparing a cellulose dispersion comprises the steps of oxidizing cellulose, fibrillating the thus oxidized cellulose to prepare cellulose nanofibers, and adding a water-soluble polymer and inorganic particles to the dispersion containing the cellulose nanofibers.
First Claim
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C09J:ADHESIVES; ADHESIVE PROCESSES IN GENERAL
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- C08B:POLYSACCHARIDES; DERIVATIVES THEREOF
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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