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:
Jun. 02, 2020
Filed:
Feb. 22, 2017
Evonik Operations Gmbh, Essen, DE;
Shiying Zheng, Center Valley, PA (US);
Gamini Ananda Vedage, Bethlehem, PA (US);
Marcelo Rufo, Sao Paulo, BR;
Daniel Iliev Totev, De Meern, NL;
Michael Cook, De Meern, NL;
Evonik Operations GmbH, Essen, DE;
Abstract
Compositions and curing agents comprising a benzylated Mannich base composition. The benzylated Mannich base composition includes a reaction product of (a) a substituted phenolic compound having at least one substituent of formula (I): wherein Ris each independently a linear or branched alkyl group having 1 to 4 carbon atoms, and Ris hydrogen, methyl, ethyl or phenyl, with (b) a benzylated polyalkylene polyamine (II): wherein Ris substituted or unsubstituted benzyl; Ris each independently R, or a hydrogen atom, or a group selected from C-Clinear, cyclic, and branched alkyl, alkenyl, and alkaryl groups; X, Y, and Z are independently selected from C-Calkylene, and cycloalkylene groups; y is an integer from 0 to 7, and z is an integer from 0 to 4; and, optionally, (c) a multifunctional amine. Amine-epoxy compositions and articles produced from these compositions are also disclosed.