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:
Dec. 25, 2007
Filed:
Jun. 04, 2004
Udo Krappe, Emmerich, DE;
Karlheinz Haubennestel, Wesel, DE;
Andrea Pentzek, Geldern, DE;
Peter Matthee, Herdecke, DE;
Udo Krappe, Emmerich, DE;
Karlheinz Haubennestel, Wesel, DE;
Andrea Pentzek, Geldern, DE;
Peter Matthee, Herdecke, DE;
BYK-Chemie GmbH, Wesel, DE;
Abstract
The invention relates to addition compounds suitable for use as wetting agents and dispersants and obtainable by reacting monofunctional or polyfunctional aromatic epoxides with polyoxyalkylenemonoamines having a number-average molecular weight of >400 g/mol, one primary or secondary amino group and at least 4 ether oxygen atoms per molecule, from 90 to 100% of the epoxide groups of the starting material having undergone reaction, the weight fraction of aromatic groups in the addition compounds being not more than 50% and the addition compounds containing per molecule at least one amino group on which salts can be formed, or being present as a salt. The invention also relates to a process for preparing the addition compounds, to their use as wetting agents and/or dispersants and to pigments or fillers coated with the addition compounds and to pigment pastes which comprise pigments, binders and the addition compounds of the invention.