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US 7,682,439 B2Granted
Polyurethane dispersant
AssigneeCiba Corporation Tarrytown
InventorsArend Noordam, Lothar Alexander Engelbrecht, Marcelles Van Der Sluis, Wendy Gezina Hof
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Abstract
The invention relates to a dispersing agent comprising: the reaction product of A one or more polyisocyanates having an average functionality of from 2.0 to 5, with B a mixture from B1 monohydroxyl compounds, and B2 monohydroxy-, monocarboxylic acid compounds to form an intermediate, followed by reacting the intermediate with C an unsaturated monohydroxy functional anchoring group.
Claims8
Dispersing agent comprising the reaction product of
- A one or more polyisocyanates having an average functionality of from 2.0 to 5, with
- B an intermediate formed from a mixture of B1 monohydroxyl compounds, and B2 monohydroxy-monocarboxylic acid compounds, followed by reacting the intermediate with
- C an unsaturated monohydroxy functional anchoring group which anchoring group is nitrogen free.
Dependencies are inferred from the claim text.