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US 2026/0193404 A1Published application
Polyester Polyols and Polyurethanes
AssigneeLoop CO2, Inc.
InventorsHsin-Chun Chiu, Liyuan Wang
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Abstract
The present invention provides polyester polyols, polyurethanes, processes for producing these, and products prepared from these. The polyester polyols and their derivatives sequester carbon obtained from carbon dioxide. The wide variety of polyester polyols and polyurethanes provide flexibility to design and make products incorporating CO2 that have properties tailored to numerous applications from shoes to coatings to insulation and more.
Claims21
1-118. (canceled)
A polyurethane composition comprising the reaction product of:
- a) one or more polyisocyanates;
- and b) a polyester polyol having a structure according to Structure (3):
- wherein R1 is selected from alkyl or aryl groups;
- wherein R2, R3, R4, and R5 are independently selected from H, alkyl, alkenyl, or aryl functional groups;
- wherein x is from 2 to 10;
- wherein z is from 0 to 20;
- and wherein n is from 1 to 1,000.
4 more elements
A process for producing polyurethanes comprising:
- a) providing one or more lactones of Structure (2):
- wherein R2, R3, R4, and R5 are independently selected from H, alkyl, alkenyl, vinylidenyl, or aryl functional groups, and wherein the one or more lactones are prepared from the reaction of one or more 1,3-dienes with C02;
- b) reacting the one or more lactones with one or more polyols to form one or more polyester polyol(s);
- c) reacting the one or more polyester polyol(s) with one or more polyisocyanates to form one or more polyurethanes;
- and d) recovering the polyurethanes.
2 more elements
Dependencies are inferred from the claim text.