The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2017
Filed:
Aug. 10, 2015
Resinate Materials Group, Inc., Plymouth, MI (US);
Shakti L Mukerjee, Canton, MI (US);
Rick Tabor, Plymouth, MI (US);
Adam William Emerson, Ypsilanti, MI (US);
Kevin Anthony Rogers, Farmington, MI (US);
Eric D Vrabel, Ferndale, MI (US);
Matthew T Brown, Novi, MI (US);
Matthew J Beatty, Ann Arbor, MI (US);
Jack Rogers Kovsky, Livonia, MI (US);
Michael D Kellerman, Ann Arbor, MI (US);
Michael Robert Christy, Midland, MI (US);
Resinate Materials Group, Inc., Plymouth, MI (US);
Abstract
Polyester polyols made from thermoplastic polyesters are disclosed. The polyols can be made by heating a thermoplastic polyester such as virgin PET, recycled PET, or mixtures thereof, with a glycol to give a digested intermediate, which is then condensed with a dimer fatty acid to give the polyol. The invention includes a polyester polyol comprising recurring units of a glycol-digested thermoplastic polyester and a dimer fatty acid. The polyester polyol can also be made in a single step by reacting the thermoplastic polyester, glycol, and dimer acid under conditions effective to produce the polyol. High-recycle-content polyols having desirable properties and attributes for formulating polyurethane products, including aqueous polyurethane dispersions, can be made. The polyols provide a sustainable alternative to bio- or petrochemical-based polyols.