Lignin-Based Waterproof Coating
AssigneeQueensland University of Technology
InventorsLeslie Alan Edye, Albert John Tietz
Life of this patent
Estimating the term…
Abstract
A method of forming a coating on a substrate is provided comprising forming a lignin solution by at least partially dissolving lignin in a solvent, coating the lignin solution onto the substrate and exposing the lignin coated substrate to a treatment selected from the group consisting of a heat treatment and an acid treatment. The coating provides for improved waterproofing and/or strengthening of the substrate.
Claims29
A method of forming a coating on a substrate including the steps of:
- (a) forming a lignin solution by at least partially dissolving a lignin in a solvent;
- (b) coating the lignin solution onto the substrate;
- and
- (c) exposing the lignin coated substrate to a treatment selected from the group consisting of a heat treatment and an acid treatment,
- to thereby form a coating on the substrate.
(canceled)
(canceled)
(canceled)
(canceled)
The method of any one of the preceding claims wherein the acid treatment comprises contacting the lignin coating with an acid having a pH below 4.0.
A composition which comprises lignin, as the major active component, at least partially dissolved in a solvent.
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.