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US 12,735,517 B2Granted
Aqueous dispersion, aqueous emulsion, coating agent, coated paper, multilayer structure, packing material, adhesive agent, and aqueous emulsion production method
AssigneeKuraray Co., Ltd.
InventorsTaeko Kaharu, Yoriko Imaoka, Yuta Taoka, Ayumu Yamamoto
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Abstract
The present invention provides an aqueous dispersion that enables production of a film having improved water resistance, tensile elastic modulus, and stress at break, and with which a decrease of strain at break can be reduced in the film. The present invention relates to an aqueous dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a cellulose nanofiber, the ethylene unit content of the ethylene-vinyl alcohol copolymer (A) being 1 mol % or more and less than 20 mol %.
Claims20
An aqueous emulsion comprising an ethylene-vinyl alcohol copolymer (A) as a dispersant;
- a polymer (C) containing an ethylenically unsaturated monomer unit as a dispersoid;
- and a cellulose nanofiber,
- the content of the cellulose nanofiber being 0.1 to 40 parts by mass with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A), and
- the total content of the ethylene-vinyl alcohol copolymer (A) and the cellulose nanofiber is 2 to 20 parts by mass with respect to 100 parts by mass of the polymer (C),
- wherein the aqueous emulsion excludes a cross-linking agent.
2 more elements
Dependencies are inferred from the claim text.