Saccharide fatty acid ester inorganic particle combinations
AssigneeGreentech Global Pte. Ltd.
InventorsJonathan Spender, Michael Albert Bilodeau, Samuel Mikail
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Abstract
The present disclosure describes methods of treating cellulosic materials with compositions that allow greater retention of inorganic particles on cellulosic substrates. The methods as disclosed provide combining saccharide fatty acid esters (SFAE) with such inorganic particles and applying such combinations on cellulosic materials to eliminate or reduce the use of retention aids or binders for filler in the paper making process. Compositions comprising such combinations of SFAE and inorganic particles are also disclosed.
Claims22
An aqueous composition, comprising:
- water;
- one or more saccharide fatty acid esters (SFAE);
- and
- inorganic particles,
- wherein said one or more SFAE is present in said aqueous composition at a sufficient concentration to cause the inorganic particles to adhere to a cellulose based substrate,
- wherein said substrate containing said SFAE-adhered inorganic particles exhibits greater water resistance and/or grease resistance compared to said substrate containing only said inorganic particles alone or only said one or more SFAE alone, and
- wherein said aqueous composition does not include casein.
An article of manufacture, comprising:
- a cellulose based substrate;
- and
- a coating on a surface of the cellulose based substrate, the coating containing one or more saccharide fatty acid esters (SFAE), inorganic particles, and optionally, one or more binders,
- wherein the cellulose based substrate consists essentially of cellulose,
- wherein the inorganic particles are adhered to the surface of the cellulose substrate by the one or more SFAE,
- wherein the inorganic particles are present in the coating at a concentration of at least 1% on a dry basis (db),
- wherein the coating provides the substrate with increased water resistance and/or grease resistance compared to if the substrate was coated with only the one or more SFAE alone or the inorganic particles alone, and
- wherein the coating does not include casein.
Dependencies are inferred from the claim text.