ORIENTATION MODIFIER FOR BRIGHTENING PIGMENT

摘要

Provided is a low-cost orientation modifier that is added to paint containing a brightening pigment to adequately disperse the brightening pigment; that has the ability to cause a paint film, which is formed by applying the paint, to further improve the flip-flop effect of the brightening pigment; that is versatile; and that can be easily manufactured. The orientation modifier for the brightening pigment is obtained through the esterification of: an a-olefin/maleic anhydride copolymer formed by the copolymerization of a linear or branched a-olefin with at least 6 carbons and a maleic anhydride; and a polyethylene glycol monoalkyl ether represented by R1-(OCH2CH2)n-OH (in the formula, R1 is a linear or branched alkyl group with 6-30 carbons, and n is a number from 5 to 60), and having a hydrophilic-lipophilic balance of 9 to 19. The orientation modifier contains an ester compound having an acid value of 15 to 60 mg·KOH/g.