Block copolymer, dispersant, and pigment dispersion composition
AssigneeOtsuka Chemical Co., Ltd.
InventorSatoru Masumoto
Life of this patent
Estimating the term…
Abstract
Provided is a block copolymer with an acid group that, when used as a dispersant, can provide a dispersion composition having excellent dispersion stability, a dispersant containing the block copolymer, and a pigment dispersion composition using the dispersant. The block copolymer is an ABA block copolymer including an A block and a B block and has the feature that its acid value is 30 to 250 mgKOH/g and the B block contains a structural unit derived from a vinyl monomer with an acid group.
Claims8
A block copolymer of an ABA type including an A block and a B block and having an acid value of 30 to 250 mgKOH/g, the B block containing a structural unit derived from a vinyl monomer with an acid group.
Dependencies are inferred from the claim text.