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:
Oct. 23, 2012
Filed:
Feb. 09, 2007
Gamini Ananda Vedage, Bethlehem, PA (US);
Stephan Francis Monaghan, Utrecht, NL;
Williams René Edouard Raymond, New Tripoli, PA (US);
Michael Ian Cook, de Meern, NL;
Michael Paul Popule, Wescosville, PA (US);
Gamini Ananda Vedage, Bethlehem, PA (US);
Stephan Francis Monaghan, Utrecht, NL;
Williams René Edouard Raymond, New Tripoli, PA (US);
Michael Ian Cook, de Meern, NL;
Michael Paul Popule, Wescosville, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
The present invention provides polyamide curing agent compositions comprising the reaction products of (1) multifunctional amines of structure 1 where Ris CH2CH2CH2NH2; R, Rand Rindependently are H or CH2CH2CH2NH2, and X is CH2CH2 or CH2CH2CH2 with (2) dimer fatty acids, optionally in combination with monofunctional fatty acids, the reaction product preferably comprising at least 15 wt % tetrahydropyrimidine-containing components. The curing agent compositions are useful for crosslinking epoxy resins to produce coatings, adhesives, floorings, composites and other articles.