| 摘要 |
The present disclosure relates generally to insecticide formulations. The present disclosure relates more particularly to aqueous pymetrozine formulations that can be provided in concentrate form and methods for making them. In one aspect, the disclosure provides a composition including pymetrozine in particulate form; a first polymeric dispersing agent, the first polymeric dispersing agent being a copolymer of (a) a maleic acid monomer and (b) a hydrophobic monomer; and a second polymeric dispersing agent, the second polymeric dispersing agent being a copolymer of (a) a (meth)acrylic acid monomer, an ethylenically unsaturated dicarboxylic acid monomer or a combination thereof, (b) a (meth)acrylamido alkyl or aryl sulfonate monomer; and (c) a third monomer selected from one or more of vinylic compounds, (meth)acrylic esters, vinyl acetate, and substituted (meth)acrylamides. |
| 主权项 |
1. A composition comprising
pymetrozine; a first polymeric dispersing agent, the first polymeric dispersing agent being a copolymer comprising as polymerized units (a) from about 20 to about 90 weight percent, based on total polymer weight, of a maleic acid monomer selected from one or more of maleic acid, maleic anhydride and water-soluble salts thereof, and (b) from about 10 to about 80 weight percent, based on total polymer weight, of a hydrophobic monomer selected from one or more of alkenes, dienes, alkynes and aromatic compounds, each containing from 4 to 20 carbon atoms; and a second polymeric dispersing agent, the second polymeric dispersing agent being a copolymer comprising as polymerized units (a) from about 10 to about 84 weight percent, based on total polymer weight, of a (meth)acrylic acid monomer selected from one or more of (meth)acrylic acid and salts thereof, (b) from about 11 to about 40 weight percent, based on total polymer weight, of a (meth)acrylamido alkyl or aryl sulfonate monomer; and (c) from about 5 to about 50 weight percent based on total polymer weight, of a third monomer selected from one or more of vinylic compounds, (meth)acrylic esters, vinyl acetate, and substituted (meth)acrylamides. |
