Polyols, polyurethane dispersions, and uses thereof
AssigneeCheckerspot, Inc.
InventorsScott Franklin, Zoran Petrovic, Jian Hong, Milica Lovric Vukovic, Jasna Djonlagic
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Abstract
Provided herein are surface treating compositions for imparting beneficial surface properties to substrates. The compositions can be prepared by reacting a bio-based polyol with an isocyanate and an ionogenic molecule. The compositions can be used to treat a variety of substrates to provide enhanced properties to a surface of the substrate. Also provided are methods for the chemical modification of triglycerides and fatty acids and use thereof in creating beneficial surface treating compositions.
Claims23
A method for producing a polyurethane dispersion, the method comprising:
- a) epoxidizing an algal triglyceride (TAG) oil, thereby generating an epoxidized algal TAG oil;
- b) ring opening the epoxidized algal TAG oil in the presence of an alcohol, thereby generating an algal oil polyol;
- c) reacting the algal oil polyol with an isocyanate, an ionomer, and an additive, thereby generating an isocyanate-terminated pre-polymer;
- d) neutralizing the isocyanate-terminated pre-polymer with an acid or a base, thereby generating a neutralized isocyanate-terminated pre-polymer;
- and
- e) dispersing the neutralized isocyanate-terminated pre-polymer in water, thereby generating the polyurethane dispersion that encapsulates the additive,
- wherein the algal TAG oil comprises at least 60% of one or more monounsaturated fatty acids, wherein the additive is a wax.
A method for producing a polyurethane dispersion, the method comprising:
- a) epoxidizing an algal triglyceride (TAG) oil, thereby generating an epoxidized algal TAG oil;
- b) ring opening the epoxidized algal TAG oil in the presence of ethanol, thereby generating an algal oil polyol;
- c) reacting the algal oil polyol with isophorone diisocyanate (IPDI), N-methyldiethanolamine (MDEA), and at least one wax, thereby generating an isocyanate- terminated pre-polymer;
- and
- d) dispersing the isocyanate-terminated pre-polymer in water, thereby generating the polyurethane dispersion,
- wherein the algal TAG oil comprises at least 60% of one or more monounsaturated fatty acids, wherein the molar ratio of the algal oil polyol, the MDEA, and the IPDI is 1 to 1.2 to 2.3, respectively.
Dependencies are inferred from the claim text.