Polyurethane Dispersants
AssigneeThe Lubrizol Corporation
InventorsStuart Nicholas Richards, Andrew James Shooter
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Abstract
The present invention provides a non-aqueous composition containing a particulate solid, an organic medium and a polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising side chains of a polyester, a polyether, a polyacrylate or a polyolefin including mixtures of such side chains.
Claims23
A non-aqueous composition comprising a particulate solid, an organic medium and a polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising side chains of a polyester, a polyether or a polyacrylate including mixtures of such side chains.
A polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising polyether chains of poly(C2-4-alkylene oxide) which contains less than 60% by weight ethylene oxide relative to the poly(C2-4-alkylene oxide) chain.
A polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising polyester side chains.
A non-aqueous composition comprising a particulate solid, an organic medium and a polyurethane dispersant having an essentially linear backbone and laterally attached solvent-solubilising side chains of a polyester, a polyether, a polyolefin or a polyacrylate including mixtures of such side chains.
Dependencies are inferred from the claim text.