Patent ID: 8167992

Claim:
A composition comprising a particulate solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (I) and salts thereof: U—(Y) x -T-N(G) r —(B—Z) q (Formula 1) wherein U is independently R′—N-(G′)-T′-O—, or R—O—; R or R′ may be the same or different and are independently H or C 1-50 -optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C 2-4 -alkyleneoxy; T or T′ is independently C 2-4 alkylene; B is a methylene group; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorous acidic polar head group; G and G′ may be the same or different and are independently H or C 1-50 -optionally substituted hydrocarbyl or C 1-50 -optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; r is zero or 1; q is 1 or 2, with the proviso that when q is 2, r is zero; and x is from 2 to 90 wherein said organic medium is an organic liquid free of water or a plastics material.