Patent ID: 7019046
Filing Date: 2006-03-28
Classification: A01N,C05G,C08K,C08L

Abstract:
1. An aqueous suspension concentrate containing, by weight of the total aqueous concentrate, of (a) between about 20 and about 90 wt. % of an active hydrophobic material; (b) between about 0.1 and about 15 wt. % of a polymeric anionic dispersing agent which consists of a mixture of the sodium salt of an alkyl vinyl ether/maleic acid half ester copolymer or an alpha-olefin/maleic acid copolymer and a lignosulfonate, a lignosulfonate metal salt or a sulfonated naphthalene/formaldehyde condensate, and (c) between about 0.1 and about 10 wt. % of a N-vinyl lactam polymer selected from the group consisting of homo- and co-polymers of N-vinyl pyrrolidone and N-vinyl caprolactam and mixtures thereof.