Epoxide adducts and their salts as dispersants

Details Epoxide adducts and their salts as dispersants Epoxide adducts and their salts as dispersants

2007-12-25

2007-12-25

Feely, Michael J. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S400000, C528S119000, C528S121000, C528S421000, C528S422000

Reexamination Certificate

active

10862111

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.

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