Oil-resistant agent and oil-resistant composition
AssigneeDaikin Industries, Ltd.
InventorsMichio Matsuda, Hirotoshi Sakashita, Nozomi Yamaguchi, Tetsuya Uehara, Daisuke Noguchi, Shun Shibata
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Abstract
An oil-resistant agent and an oil-resistant composition, which are capable of imparting excellent oil-resistance to paper. The oil-resistant composition contains a polysaccharide (1) and an oil-resistant polymer (2). The polysaccharide (1) is preferably starch. The oil-resistant polymer (2) preferably has (a) a repeating unit formed from an acrylic monomer that has a long-chain hydrocarbon group having 7-40 carbon atoms, and (b) a repeating unit formed from an acrylic monomer that has a hydrophilic group. A polyvinyl alcohol or glucose may be present as an additive.
Claims19
An oil-resistant composition comprising
- (1) at least one polysaccharide selected from the group consisting of hydrophobized modified starch having a hydrophobic group that is a hydrocarbon having 3 to 40 carbon atoms, oxidized starch, dextrin, and pregelatinized starch;
- and
- (2) an oil-resistant polymer that is a non-fluorine copolymer having:
- (a) a repeating unit formed from an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms, and
- (b) a repeating unit formed from an acrylic monomer having a hydrophilic group,
- wherein a weight average molecular weight of the non-fluorine copolymer is 900,000 to 10,000,000.
Dependencies are inferred from the claim text.