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:
Jul. 02, 2019
Filed:
Sep. 06, 2016
Resinate Materials Group, Inc., Plymouth, MI (US);
Woo-Sung Bae, Northville, MI (US);
Kevin Rogers, Farmington, MI (US);
Michael Christy, Howell, MI (US);
Rick Tabor, Plymouth, MI (US);
RESINATE MATERIALS GROUP, INC., Plymouth, MI (US);
Abstract
Semi-crystalline polyester polyols and their use in reactive hot-melt adhesives are disclosed. The polyols comprise recurring units of a C-Caliphatic diol, a C-Caliphatic dicarboxylic acid, and 1 to 20 wt. % of an aromatic dicarboxylic acid source, a polycarbonate, or a combination thereof. The polyols have a hydroxyl number within the range of 14 to 112 mg KOH/g. Reactive hot-melt adhesives from the polyols and composite structures produced using the adhesives are also disclosed. A minor proportion of aromatic dicarboxylic acid, polycarbonate content in the polyester polyol surprisingly improves the properties of reactive hot-melt adhesives when compared with a commercial hot-melt adhesive or an adhesive formulated using an all-aliphatic polyester polyol. The adhesives are useful for bonding a wide variety of substrates, including paper, wood, glass, ceramics, plastics, and metals.