	US 12,376,586 B2
	Microcapsules comprising cinmethyln in the core and a polyurea derived from diphenylmethane diisocyanate or an oligomer thereof
Henning Urch, Limburgerhof (DE); Diana Franz, Limburgerhof (DE); Marc Nolte, Limburgerhof (DE); Gerd Kraemer, Limburgerhof (DE); Amandine Michel, Limburgerhof (DE); and Klaus Kolb, Limburgerhof (DE)
Assigned to BASF AGRO B.V., Arnhem (NL)
Appl. No. 16/476,633
Filed by BASF Agro B.V., Arnhem (NL)
PCT Filed Jan. 10, 2018, PCT No. PCT/EP2018/050590 § 371(c)(1), (2) Date Jul. 9, 2019, PCT Pub. No. WO2018/130589, PCT Pub. Date Jul. 19, 2018.
Claims priority of provisional application 62/444,518, filed on Jan. 10, 2017.
Claims priority of application No. 17153595 (EP), filed on Jan. 27, 2017.
Prior Publication US 2019/0364888 A1, Dec. 5, 2019
Int. Cl. A01N 25/28 (2006.01); A01N 25/10 (2006.01); A01N 43/80 (2006.01); A01N 43/82 (2006.01); A01N 43/90 (2006.01); C07D 493/08 (2006.01); C08G 61/10 (2006.01); C08L 33/10 (2006.01); C08L 75/02 (2006.01)

CPC A01N 25/28 (2013.01) [A01N 25/10 (2013.01); A01N 43/90 (2013.01); C07D 493/08 (2013.01); A01N 43/80 (2013.01); A01N 43/82 (2013.01); C08G 61/10 (2013.01); C08L 33/10 (2013.01); C08L 75/02 (2013.01)]

17 Claims

1. Microcapsules comprising a core, wherein the core comprises cinmethylin, and a shell, wherein the shell comprises a polyurea material which comprises a polyaddition product of (1) polymeric methylene diphenyl diisocyanate having an average functionality in the range of 2.0 to 4.0 and (2) an aliphatic diamine of the formula H₂N—(CH₂)_p—NH₂, wherein p is 6;

where a weight ratio of cinmethylin and the polyurea material of the shell is from 40:1 to 70:1; and

where an overall weight ratio of cinmethylin and the polymeric methylene diphenyl diisocyanate present in the shell in polymerized form is from 50:1 to 120:1.