Moisture/oil resistant composite materials
AssigneeWorld Centric
InventorsRandal L. Shogren, San Hein, Xing Jin
Life of this patent
Estimating the term…
Abstract
Described are oil and water-resistant compositions and methods of making and using such compositions. The compositions can be used to prepare oil and water-resistant articles of manufacturing. Oil and water-resistant compositions can include a fiber, a polysaccharide, an acid, and water; wherein the composition is water and oil resistant when compressed and heated. Other oil and water-resistant compositions can include a fiber, a blocking agent such as a fatty acid, a metal salt of a fatty acid, or combinations thereof, and water, wherein the composition is water and oil resistant when compressed and heated.
Claims16
A method for preparing a fiber matrix, the method comprising:
- blending a pulped fiber, a polysaccharide, a fatty acid salt, and optionally an acid, and water to create a slurry;
- casting the slurry to a wet mat of product shape;
- and
- compressing and heating the wet mat to remove water to form the fiber matrix, wherein the fiber matrix comprises
- a pulped fiber,
- one or more polysaccharide, wherein the polysaccharide is present in a concentration of from 1% to 20% by weight of the fiber matrix, and
- a fatty acid salt, wherein the fatty acid salt is selected from the group consisting of a zinc stearate, magnesium stearate, calcium stearate, iron salts of the fatty acid, manganese salts of the fatty acid, aluminum salts of the fatty acid, and any combination thereof;
- and
- optionally an acid distributed within the fiber matrix,
- wherein the fatty acid salt is present in a concentration of from 2% to 50% by weight of the fiber matrix.
A method of making an article of manufacture, the method comprising:
- blending a pulped fiber, a polysaccharide, a fatty acid salt, and optionally an acid, and water to create a slurry;
- casting the slurry to a wet mat of product shape;
- and
- compressing and heating the wet mat to remove water to form the article, wherein the article comprises a fiber matrix comprising
- a pulped fiber,
- one or more polysaccharide, wherein the polysaccharide is present in a concentration of from 1% to 20% by weight of the fiber matrix, and
- a fatty acid salt, wherein the fatty acid salt is selected from the group consisting of a zinc stearate, magnesium stearate, calcium stearate, iron salts of the fatty acid, manganese salts of the fatty acid, aluminum salts of the fatty acid, and any combination thereof;
- and
- optionally an acid distributed within the fiber matrix,
- wherein the fatty acid salt is present in a concentration of from 2% to 50% by weight of the fiber matrix.
Dependencies are inferred from the claim text.