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US 10,131,096 B1Granted
High strength leather material
AssigneeSustainable Composites, LLC
InventorsThomas M. Tymon, Zhi Yun Lou-Tymon, Hudson T. Van Ormer
Life of this patent
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Abstract
A leather substrate formed from waste leather and its method of production, particularly a leather substrate made up substantially of a collagen fibril matrix.
Claims18
A method of forming a leather substrate material comprising:
- processing the leather source material to provide leather material particles, wherein the leather material particles comprise collagen fiber bundles;
- combining the leather material particles with a fluid to form a solution, wherein the leather material particles absorb at least a portion of the fluid;
- adding a polymer latex to the solution;
- causing the collagen fiber bundles to separate into fibrils by dispersing the collagen fiber bundles in the solution;
- removing at least a portion of the fluid from the solution-by causing at least a portion of the solution to pass through a mesh medium to provide a wetlap;
- and
- removing at least a second portion of the fluid from the wetlap by pressing or drying the wetlap to provide the leather substrate material.
4 more elements
A method of forming a leather substrate material comprising:
- manipulating a leather material to form leather material particles;
- combining the leather material particles with a fluid to form a solution;
- adding a polymer latex to the solution;
- adding an ionic salt to the solution;
- causing the leather material particles to be dispersed in the solution;
- and
- removing at least a portion of the fluid from the solution to form a leather substrate wherein the leather substrate exhibits a tear resistance of greater than about 20 Newtons when tested in accordance with ASTM D 4704.
4 more elements
A leather substrate formed by a process comprising:
- manipulating a leather material to form leather material particles;
- combining the leather material particles with a fluid to form a solution;
- adding a polymer latex to the solution;
- adding an ionic salt to the solution;
- and
- removing at least a portion of the fluid from the solution to form a leather substrate.
3 more elements
Dependencies are inferred from the claim text.