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:
May. 12, 2020
Filed:
Feb. 06, 2018
Allnex Netherlands B.v., Bergen op Zoom, NL;
Richard Hendrikus Gerrit Brinkhuis, Zwolle, NL;
Antonius Johannes Wilhelmus Buser, Wehl, NL;
Petrus Johannes Maria David Elfrink, Boxmeer, NL;
Ferry Ludovicus Thys, Stevens-Woluwe, BE;
Nicole Mangnus-Verhagen, Vogelwaarde, NL;
Elwin Aloysius Cornelius Adrianus De Wolf, Hoogerheide, NL;
Allnex Netherlands B.V., Bergen op Zoom, unknown;
Abstract
An RMA crosslinkable composition having at least one crosslinkable component including reactive components A and B each including at least 2 reactive groups, the at least 2 reactive groups of component A being acidic protons (C—H) in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C═C) and a base catalyst (C) which reactive components A and B crosslink by Real Michael Addition (RMA) reaction under action of the base catalyst, characterised in that the at least one crosslinkable component including reactive components A and B in the composition have a total hydroxy number of less than 60, preferably less than 40 and more preferably less than 20 mg KOH/g solids. Further, specific resins A and B having a low hydroxy number for use in RMA cross-linkable compositions and a process for the manufacture thereof.