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:
Nov. 19, 2013
Filed:
Sep. 13, 2012
Rainer Klopsch, Worms, DE;
Miran Yu, Ludwigshafen, DE;
Rainer Klopsch, Worms, DE;
Miran Yu, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for curing an epoxy resin composition containing an epoxy resin and a compound of the general formula I: where Rand Rindependently are hydrogen, C-C-alkyl, C-C-alkoxy-C-C-alkyl, C-C-cycloalkyl, phenyl, phenyl-C-C-alkyl, C-C-alkenyl or C-C-alkynyl, or Rand Rtogether are a C-C-alkylene group; and where Rand Rindependently are hydrogen, C-C-alkyl, C-C-alkoxy-C-C-alkyl, C-C-cycloalkyl, phenyl, phenyl-C-C-alkyl, C-C-alkenyl or C-C-alkynyl, or Rand Rtogether are a C-C-alkylene group. The process includes adding amino hardeners, where 0.1% to 50% by weight of the amino hardeners are aliphatic, cycloaliphatic or aromatic amine compounds having 1 to 4 primary amino groups and optionally further functional groups, selected from secondary amino groups, tertiary amino groups, and hydroxyl groups. In the case of the cycloaliphatic and aromatic amine compounds, the primary amino groups are attached as aminomethylene groups (HN—CH—) to the cycloaliphatic or aromatic ring system (referred to below for short as co-hardeners).