Nonisocyanate polyurethane materials, and their preparation from epoxidized soybean oils and related epoxidized vegetable oils, incorporation of carbon dioxide into soybean oil, and carbonation of vegetable oils

Novel carbonated vegetable oils (such as carbonated soybean oil) are made by reacting carbon dioxide with an epoxidized vegetable oil. The carbonated vegetable oils advantageously may be used for producing nonisocyanate polyurethane materials.

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