Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols are reaction products of a thermoplastic polyester, a glycol, and a hydrophobe selected from ricinoleic acid, ethoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids, tung oil, soybean oil, sunflower oil, cardanol-based products, recycled cooking oil, isostearyl alcohol, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or fatty acids, and mixtures thereof. In one process, the polyols are made by reacting the thermoplastic polyester with a glycol to give a digested intermediate, which is then reacted with the hydrophobe. In another process, the thermoplastic polyester, glycol, and hydrophobe are combined and reacted in a single step. These hydrophobes facilitate the production from recycled thermoplastics of polyols that have good transparency and little or no particulate settling or phase separation.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a hydroxy-functional ketal acid, ester or amide. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the hydroxy-functional ketal acid, ester or amide. The resulting polyols have good transparency and little or no particulate settling or phase separation. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, flexible and rigid foams, coatings, adhesives, sealants, and elastomers can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: The presently disclosed and/or claimed inventive concept(s) relates generally to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymers and methods thereof. More specifically, the presently disclosed and/or claimed inventive concept(s) relates to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymer obtained from, for example but not by way of limitation, waste products, such as beverage containers made from polyethylene terephthalate (PET). The oligomeric reaction products can, in one embodiment, be used as a starting material for polyurethanes. The presently disclosed and/or claimed inventive concept(s) also relates to processes for producing oligomeric reaction products from the depolymerization of polyethylene terephthalate.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols, processes for making them, and applications for the polyols are disclosed. In some aspects, the polyols comprise recurring units from a thermoplastic polyester or an aromatic polyacid source, a glycol, and a lignin, tannin, or mixture thereof. Optionally, the polyols incorporate recurring units of a hydrophobe. The polyols are made in one or multiple steps; in some aspects, the thermoplastic polyester or aromatic polyacid source and the glycol are reacted first, followed by reaction with the lignin, tannin, or mixture thereof. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including two-component polyurethane coatings, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.

Abstract: Polyester polyols made from thermoplastic polyesters are disclosed. The polyols are reaction products of a thermoplastic polyester, a glycol, and a hydrophobe selected from ricinoleic acid, ethoxylated castor oil, saturated or unsaturated C9-C18 dicarboxylic acids, tung oil, soybean oil, sunflower oil, cardanol-based products, recycled cooking oil, isostearyl alcohol, hydroxy-functional materials derived from epoxidized, ozonized, or hydroformylated fatty esters or fatty acids, and mixtures thereof. In one process, the polyols are made by reacting the thermoplastic polyester with a glycol to give a digested intermediate, which is then reacted with the hydrophobe. In another process, the thermoplastic polyester, glycol, and hydrophobe are combined and reacted in a single step. These hydrophobes facilitate the production from recycled thermoplastics of polyols that have good transparency and little or no particulate settling or phase separation.

Abstract: The presently disclosed and/or claimed inventive concept(s) relates generally to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymers and methods thereof. More specifically, the presently disclosed and/or claimed inventive concept(s) relates to oligomeric reaction products formed by the depolymerization of polyethylene terephthalate polymer obtained from, for example but not by way of limitation, waste products, such as beverage containers made from polyethylene terephthalate (PET). The oligomeric reaction products can, in one embodiment, be used as a starting material for polyurethanes. The presently disclosed and/or claimed inventive concept(s) also relates to processes for producing oligomeric reaction products from the depolymerization of polyethylene terephthalate.