| 摘要 |
The present invention relates to a composition containing a particulate solid, an organic or aqueous medium and a dispersant that may be a reaction product of an organic di or polyepoxide with a primary amine, aminoalcohol, amino acid, hydroxyacid or alcohol containing a fused or non-fused aromatic imide group. The invention further provides compositions for coatings, inks, toners, plastic materials (such as thermoplastics), plasticisers, plastisols, crude grinding and flush. |
| 主权项 |
1. A polymer represented by Formula (1): wherein dispersant of Formula (1) has a terminal and/or pendant imide group, wherein the side chain imide group is derived from an imide compound represented by Formula (1a): wherein R1 is a substituent on Q ring in any position available for bonding to a substituent group and R1 is independently represented by one or more of —H, or an electron withdrawing group selected from the group of: —NO2, —SO2NR′2, —C(O)R′, —SO3M, halo, —NH2, and —OR′ or an electron releasing alkyl group; M may be H, a metal cation, NR′4+, or mixtures thereof; R′ may be —H, an optionally-substituted alkyl containing 1 to 20 carbon atoms, and the substituent may be hydroxyl or halo or mixtures thereof; Q is a fused or non-fused aromatic ring containing 4n+2π-electrons, wherein n=1 or more, and Q is bonded to the imide group in such a way to form a 5 or 6 membered imide ring; R2 is a C1 to C20 hydrocarbylene group or mixtures thereof; R2 may include oxygen and/or nitrogen atoms wherein there is at least 2 carbon atoms per every oxygen or nitrogen of R2, these would include ether, ester, and amide type linkages in R2; Pol is a diepoxide or polyepoxide comprising at least one pendant side chain of one or more of:
a polyether,a polyester,a mixed polyether/polyester pendant side chains thereof,a mixed polyester/polyether pendant side chains thereof,or mixtures thereof; the bond(s) between Pol and each W′ allows for one or more terminal and/or pendant side chain imide groups (as defined by w) to be attached to Pol at one or more locations on Pol and for each imide group to be attached to Pol by one or more bond (as defined by b); W is any group capable of reaction with an epoxide group, for example primary and secondary amine, carboxylic acid and hydroxyl groups; W′ represents amino, carboxylic acid and hydroxyl with the H missing and typically is a residue of the reaction of an amino, hydroxyl or carboxyl group, typically amino or hydroxyl of the imide containing group with a diepoxide or polyepoxide in a conventional reaction forming a chemical bond between an amino, hydroxy, or carboxyl group with an epoxide; when b is 2 then one of the W′ is derived from a secondary amine reacted with said epoxide and be in the R2 linking group between the imide and the other W′ group, when b is 2 each W′ group is the same or different; b is 1 or 2 and when b is 1, the imide group can either be terminal and attached to the Pol by one chemical bond when W is hydroxyl or carboxylic acid, or a pendant side chain when W is NH2 and when b is 2 the imide group is a side chain attached to Pol by two chemical bonds; d is 1, 2, or 3; this means that there is the possibility of 1 to 3 imide groups attached to R2 at different carbon atoms of R2; and w is 1 or more. |
