Aspects of the present disclosure include fatty acid -hydroxyester compounds (e.g., fatty acid esters of -hydroxybutyrate), fatty acid esters of butanediol, and pharmaceutically acceptable salts thereof. Also provided are pharmaceutical compositions having one or more fatty acid -hydroxyester compounds and/or one or more fatty acid esters of butanediol. Methods for treating a subject by administering one or more esters to the subject are also provided. Kits containing one or more of the subject esters are also described.

Aspects of the present disclosure include fatty acid -hydroxyester compounds (e.g., fatty acid esters of -hydroxybutyrate), fatty acid esters of butanediol, and pharmaceutically acceptable salts thereof. Also provided are pharmaceutical compositions having one or more fatty acid -hydroxyester compounds and/or one or more fatty acid esters of butanediol. Methods for treating a subject by administering one or more esters to the subject are also provided. Kits containing one or more of the subject esters are also described.

The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25 C. is not more than 3.7.

The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25 C. is not more than 3.7.

This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

The ester compound of the present invention is represented by the following formula (1), wherein R.sup.1 to R.sup.24 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, or a hetero atom-containing hydrocarbon group; R.sup.1 to R.sup.10, R.sup.23, and R.sup.24 may be bonded to one another to form a ring or may form a multiple bond at which adjacent substituents are directly bonded; R.sup.11 to R.sup.24 may be bonded to one another to form a ring, or adjacent substituents may be bonded to one another to form a multiple bond; at least one set in R.sup.1 to R.sup.24 is bonded to one another to form a ring structure; n2 to n5 each independently represent an integer of 0 to 2; n1 and n6 each independently represent an integer of 0 or 1; and L.sup.1 and L.sup.2 are each independently a hydrocarbon group or a hetero atom-containing hydrocarbon group.

##STR00001##

The ester compound of the present invention is represented by the following formula (1), wherein R.sup.1 to R.sup.24 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, or a hetero atom-containing hydrocarbon group; R.sup.1 to R.sup.10, R.sup.23, and R.sup.24 may be bonded to one another to form a ring or may form a multiple bond at which adjacent substituents are directly bonded; R.sup.11 to R.sup.24 may be bonded to one another to form a ring, or adjacent substituents may be bonded to one another to form a multiple bond; at least one set in R.sup.1 to R.sup.24 is bonded to one another to form a ring structure; n2 to n5 each independently represent an integer of 0 to 2; n1 and n6 each independently represent an integer of 0 or 1; and L.sup.1 and L.sup.2 are each independently a hydrocarbon group or a hetero atom-containing hydrocarbon group.

##STR00001##

This invention relates to the field of plastic waste decomposition. More specifically, the invention comprises products obtained from the decomposition of plastic waste.

This invention relates to the field of plastic waste decomposition. More specifically, the invention comprises products obtained from the decomposition of plastic waste.