Patent ID: 7871636
Filing Date: 2011-01-18
Classification: A01N

Abstract:
1. A flowable, aqueous concentrate composition containing i. 50 to 500 g/l of pendimethalin as microencapsulated pendimethalin particles a) and wherein the microencapsulated pendimethalin is encapsulated by a polymeric wall material which is selected from the group consisting of polyurea and polyurethane, and wherein the polymeric wall material is water insoluble, ii. 50 to 500 g/l of non-encapsulated pendimethalin particles b), iii. 5 to 100 g/l of at least one anionic oligomeric or polymeric surface-active substance A which is an anionic oligomer or polymer, which contains a plurality of anionic groups, iv. 5 to 200 g/l of at least one anionic surface-active compound of the formula I v. 5 to 50 g/l of at least one nonionic surface-active compound of the formula II vi. 10 to 200 g/l of at least one water-soluble inorganic salt, and wherein the weight ratio of the microencapsulated pendimethalin particles to non-encapsulated pendimethalin particles is from 1:9 to 9:1.