Biodegradable functional biobased coating
OwnerAlbert TIETZinventor
Life of this patent
Estimating the term…
Abstract
A biobased coating and method of forming and use of the same is disclosed. The biobased coating can be used, for example, in packaging and food receptacles or as a sacrificial layer. The coating includes (a) a cellulose, (b) lignin and/or (c) natural latex. Since the coating does not use wax or petrochemically derived polymers, it is eco-friendly to produce and biodegradable. The biobased coating can be formed on an external surface of a substrate, such as, e.g., paper or pulp starch, corrugated cardboard, mushroom (including mycelium), seaweed, a fabric, concrete or metal.
Claims27
A biobased coating for a substrate, comprising:
- (a) between about 0.1 to about 32% w/w lignin;
- (b) between about 0.0 to about 20% w/w latex;
- (c) between about 0.0 to about 40% w/w plasticizer;
- and
- (d) between about 0.1 to about 70% w/w cellulose.
A biobased coating for a substrate, comprising:
- (a) between about 0.1 to about 32% w/w lignin;
- (b) between about 0.0 to about 40% w/w plasticizer;
- and
- (c) between about 0.1 to about 70% w/w cellulose.
(canceled)
A method of forming a biobased coating on a surface of a substrate comprising:
- (a) forming a biobased coating solution by dissolving a lignin and cellulose in an aqueous solution;
- (b) heating the biobased coating solution;
- (c) applying the biobased coating solution onto the surface of the substrate;
- and
- (d) heating the substrate or treating the substrate with an acid to form the biobased coating on the substrate.
(canceled)
15-16. (canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.