Patent ID: 11937599
Assignee: MONSANTO TECHNOLOGY LLC
Field: Basic materials chemistry (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A herbicidal microcapsule comprising:
a core material comprising an acetamide herbicide and a second herbicide comprising diflufenican, wherein at least 20 wt % of the second herbicide is dissolved in the acetamide herbicide and wherein the weight ratio of the acetamide herbicide to the second herbicide in the core material is at least about 2:1; and
a shell wall encapsulating the core material, wherein the shell wall comprises a polyurea formed by polymerization of a polyisocyanate component comprising a polyisocyanate or mixture of polyisocyanates and a polyamine component comprising a polyamine or mixture of polyamines to form the polyurea, wherein the polyisocyanate comprises an aliphatic polyisocyanate.