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:
Apr. 24, 2018
Filed:
Oct. 14, 2015
Resinate Materials Group, Inc., Plymouth, MI (US);
Rick Tabor, Plymouth, MI (US);
Eric David Vrabel, Ferndale, MI (US);
Matthew J Beatty, Ann Arbor, MI (US);
Gary E. Spilman, Northville, MI (US);
Kevin Anthony Rogers, Farmington, MI (US);
Michael Robert Christy, Howell, MI (US);
Matthew Thomas Brown, Novi, MI (US);
Jack Rogers Kovsky, Detroit, MI (US);
Woo-Sung Bae, Midland, MI (US);
Shakti L Mukerjee, Canton, MI (US);
Resinate Materials Group, Inc., Piynmuth, MI (US);
Abstract
The present invention relates to polyester polyols made from aromatic polyacid sources such as thermoplastic polyesters. The polyols can be made by heating a thermoplastic polyester such as virgin polyethylene terephthalate, recycled polyethylene terephthalate, or mixtures thereof, with a glycol to give a digested intermediate which is then reacted with a digestible polymer, which can be obtained from various recycle waste streams. The polyester polyols comprise a glycol-digested polyacid source and a further digestible polymer. The polyester polyols provide a sustainable alternative to petrochemical or biochemical based polyester polyols.