MODIFIED RING-BEARING RESINS AND DISPERSANTS CONTAINING THE SAME

摘要

The ring-containing modified resin is represented by the following chemical formula (1) R 1 [ ˆ’ ( ˆ’ O ˆ’ C O ˆ’ N H ˆ’ R 2 ˆ’ N H ˆ’ C O ˆ’ O ˆ’ R 3 ˆ’ ) p ˆ’ O ˆ’ R 4 ] q (in the chemical formula (1), R 1 is a dehydroxyl residue of a resin having a benzene ring and/or a condensed ring and hydroxyl group: -R 2 - is deisocyanate group derived from an organic diisocyanate: -R 3 - is a dehydroxyl residue of polyol having number-average molecular weight of 200 to 30000: p is 1 to 3: -R 4 is a hydrogen atom, alkyl group having 1 to 18 carbons, phenyl group: q is the same number as the number of the dehydroxyl residue of R 1 ).