US 12,247,129 B2
Seed coatings, coating compositions and methods for use
Zhiyun Chen, Newtown, PA (US); Jean-Christophe Castaing, Sèvres (FR); Peng Fei Ji, Shanghai (CN); and Galder Cristobal, Singapore (SG)
Assigned to SPECIALTY OPERATIONS FRANCE, Lyons (FR)
Filed by SPECIALTY OPERATIONS FRANCE, Lyons (FR)
Filed on Feb. 1, 2022, as Appl. No. 17/590,753.
Application 17/590,753 is a continuation of application No. 16/929,565, filed on Jul. 15, 2020.
Application 16/929,565 is a continuation of application No. 15/955,015, filed on Apr. 17, 2018, granted, now 10,745,578.
Application 15/955,015 is a continuation in part of application No. 13/407,119, filed on Feb. 28, 2012, abandoned.
Claims priority of provisional application 61/464,117, filed on Feb. 28, 2011.
Prior Publication US 2022/0154030 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 105/00 (2006.01); A01C 1/06 (2006.01); A01N 25/10 (2006.01); C05G 3/00 (2020.01); C08L 99/00 (2006.01); C09D 101/02 (2006.01); C09D 103/02 (2006.01); C09D 105/04 (2006.01); C09D 105/06 (2006.01); C09D 105/08 (2006.01)
CPC C09D 105/00 (2013.01) [A01C 1/06 (2013.01); A01N 25/10 (2013.01); C05G 3/00 (2013.01); C08L 99/00 (2013.01); C09D 101/02 (2013.01); C09D 103/02 (2013.01); C09D 105/04 (2013.01); C09D 105/06 (2013.01); C09D 105/08 (2013.01)] 16 Claims
 
1. A method of applying a dry seed coating composition comprising:
creating a hole in a soil with pressurized water or with aeration plug removal, introducing a seed into the soil; and
in-situ coating the seed with the dry seed coating composition comprising at least 60 wt %, based on the weight of the composition, of guar or derivatized guar,
wherein the derivatized guar is one or more selected from the group consisting of carboxymethyl guar, hydroxyethyl guar, hydroxypropyl guar, carboxymethylhydroxypropyl guar, cationic hydroxylpropyl guar, hydrophobically modified guar, hydrophobically modified carboxymethyl guar, hydrophobically modified hydroxyethyl guar, hydrophobically modified hydroxypropyl guar, cationic hydrophobically modified hydroxypropyl guar, hydrophobically modified carboxymethylhydroxypropyl guar, and hydrophobically modified cationic guar,
wherein the cationic hydroxylpropyl guar or the cationic hydrophobically modified hydroxypropyl guar include trimethylamino (2-hydroxyl) propyl, with chloride as a counter ion,
wherein the in-situ coating comprises:
introducing the seed coating composition onto the soil by spraying the seed coating composition with pressurized air on a soil surface in a target soil area, and
introducing the seed in the soil in the target soil area,
wherein the seed coating composition promotes seedling establishment through water retention or water absorption compared to when the seed is not coated with the dry seed coating composition.