Back to results
US 11,377,765 B1Granted
High-strength and tear-resistant leather materials and methods of manufacture
AssigneeSustainable Composites, LLC
InventorsThomas M. Tymon, Franklin L. Fox, Hudson T. Van Ormer
Life of this patent
Estimating the term…
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.
Claims38
A method of forming a leather substrate material comprising the steps of:
- (a) collecting leather material;
- (b) shredding and screening the leather material to provide leather material particles comprising collagen fiber bundles;
- (c) combining the leather material particles with a portion of a fluid or water to provide a water/leather material particle solution or a fluid/leather material particle solution;
- (d) allowing collagen fiber bundles of the leather material particles to absorb at least a portion of the fluid or water;
- (e) shearing the leather material particles;
- (f) dispersing the leather material particles;
- (g) forming a wet lap or pulp comprising the leather material particles from the water/leather material particle solution or fluid/leather material particle solution;
- (h) applying a processing aid to the wet lap or pulp;
- and,
- (g) removing least a portion of the fluid or water from the wet lap or pulp to form a leather substrate.
7 more elements
A method of forming a leather substrate material comprising the steps of:
- (a) providing leather particles from a leather source, said leather particles comprising collagen fiber bundles;
- (b) combining the leather material particles with a fluid or water to form a leather material solution;
- (c) agitating the leather material solution;
- (d) removing at least a portion of the fluid from the leather material solution to form a wet lap or pulp;
- (e) applying a processing aid to the wet lap or pulp;
- and,
- (f) removing least a portion of the fluid or water from the wet lap or pulp to form a leather substrate.
4 more elements
A leather substrate material formed by a process comprising:
- (a) providing leather particles from a leather source, said leather particles comprising collagen fiber bundles;
- (b) combining the leather material particles with a fluid to form a leather material solution;
- (c) allowing said collagen fiber bundles of the leather particles to absorb at least a portion of said fluid or water;
- (d) forming a wet lap or pulp comprising said leather particles;
- and
- (e) applying a processing aid to the wet lap or pulp.
3 more elements
Dependencies are inferred from the claim text.