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US 2018/0007893 A1Published application
Methods for treating seeds with an aqueous composition and seeds treated therewith
AssigneesCovestro LLC, Bayer CropScience AG
InventorsAbdullah Ekin, James A. Thompson-Colon, Timothy Pike, Scott Grace, Jinqi Li, Ronald Reichert, William S. Hanson
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Abstract
Disclosed are methods for treating seeds with a seed treatment composition that includes: (A) an aqueous polyurethane dispersion; and (B) an insecticide, a fungicide, a nematicide, and/or other pesticides. Also disclosed are seeds treated with such a treatment compositions and methods for treating a seed using such treatment composition.
Claims21
1:
- A method for treating a seed, comprising applying to the seed an aqueous seed treatment composition comprising:
- (A) an aqueous polyester-polyurethane dispersion;
- and
- (B) one or more insecticides, fungicides, nematicides and/or other pesticides, wherein
- (1) the aqueous polyurethane dispersion forms a film exhibiting:
- (a) a microhardness of 4 to 34 N/mm2;
- (b) a Tg of −79° C. to −4° C.,
- (c) a percent elongation of 44 to 300, and
- (d) a tensile strength of 2500 lb/in2 (17.2 MPa) to 5600 lb/in2 (38.6 MPa), and
- (2) the seed comprises one selected from the group consisting of corn seed, sorghum seed, oat seed, rye seed, barley seed, soybean seed, vegetable seed, wheat seed, sugarbeat seed, rice, sunflower seed, lettuce seed, and spinach seed.
7 more elements
2:
- The method of claim 1, wherein:
- (a) the microhardness is 4 to 25 N/mm2,
- (b) the Tg is −48° C. to −30° C., and/or
- (c) the percent elongation is 10 to 300.
1 more element
3:
- The method of claim 1, wherein the aqueous polyurethane dispersion comprises one or more polyurethanes that are the reaction product of reactants comprising:
- (i) a polyisocyanate;
- (ii) a polyester polyol having a number average molecular weight of 400 to 8,000 g/mol;
- (iii) a compound comprising at least one isocyanate-reactive group and an anionic group or potentially anionic group;
- (iv) optionally a mono functional polyalkylene ether;
- (v) optionally a polyol having a molecular weight of less than <400 g/mol;
- and
- (vi) optionally, a polyamine or amino alcohol having a molecular weight of from 32 to 400 g/mol.
5 more elements
4:
- The method of claim 3, wherein the polyester polyol is a reaction product of butanediol and/or neopentyl glycol and/or hexanediol with adipic acid and/or phthalic acid.
5:
- The method of claim 3, wherein the aqueous composition comprises:
- (A) an anionic aliphatic polyester-polyurethane that is a reaction product of components (i), (ii), (iii), (v), and (vi), and
- (B) optionally an anionic aliphatic polyester-polyurethane, different from (A), that is a reaction product of components (i), (ii), (iii), (v), and (vi).
6:
- The method of claim 5, wherein the aqueous composition further comprises (C) an anionic/non-ionic polyester polyurethane that is different from (A) and (B) and is a reaction product of components (i), (ii), (iii), (iv), and (vi).
7:
- The method of claim 6, wherein the weight ratio of (A), (B) and (C) in the composition is such that (A+B)/(C) is greater than 1.
8:
- A method of claim 1, wherein the aqueous composition further comprises a polyethylene wax.
9:
- The method of claim 1, wherein the seed comprises a corn seed selected from the group consisting of sweet corn, silver queen corn, golden bantam, early sunglow, Indian corn, sugar corn, pole corn, field corn, dent corn, flint corn, flour corn, blue corn, popcorn and waxy corn.
(canceled)
11:
- A seed treated according to the method of claim 1.
12:
- The seed of claim 11, wherein the seed comprises corn seed.
13:
- The seed of claim 12, wherein the corn seed is selected from the group consisting of sweet corn, silver queen corn, golden bantam, early sunglow, Indian corn, sugar corn, pole corn, field corn, dent corn, flint corn, flour corn, blue corn, popcorn and waxy corn.
14:
- The method of claim 2, wherein the aqueous polyurethane dispersion comprises one or more polyurethanes that are the reaction product of reactants comprising:
- (i) a polyisocyanate;
- (ii) a polyester polyol having a number average molecular weight of 400 to 8,000 g/mol;
- (iii) a compound comprising at least one isocyanate-reactive group and an anionic group or potentially anionic group;
- (iv) optionally a mono functional polyalkylene ether;
- (v) optionally a polyol having a molecular weight of less than <400 g/mol, and
- (vi) optionally, a polyamine or amino alcohol having a molecular weight of from 32 to 400 g/mol.
4 more elements
15:
- The method of claim 14, wherein the polyester polyol is a reaction product of butanediol and/or neopentyl glycol and/or hexanediol with adipic acid and/or phthalic acid.
16:
- The method of claim 14, wherein the aqueous composition comprises:
- (A) an anionic aliphatic polyester-polyurethane that is a reaction product of components (i), (ii), (iii), (v), and (vi), and
- (B) optionally an anionic aliphatic polyester-polyurethane, different from (A), that is a reaction product of components (i), (ii), (iii), (v), and (vi).
17:
- The method of claim 16, wherein the aqueous composition further comprises (C) an anionic/non-ionic polyester polyurethane that is different from (A) and (B) and is a reaction product of components (i), (ii), (iii), (iv), and (vi).
18:
- The method of claim 17, wherein the weight ratio of (A), (B) and (C) in the aqueous composition is such that (A+B)/(C) is greater than 1.
19:
- The method of claim 14, wherein the seed comprises a corn seed selected from the group consisting of sweet corn, silver queen corn, golden bantam, early sunglow, Indian corn, sugar corn, pole corn, field corn, dent corn, flint corn, flour corn, blue corn, popcorn and waxy corn.
20:
- A seed treated according to the method of claim 2.
21:
- The seed of claim 20, wherein the seed comprises a corn seed selected from the group consisting of sweet corn, silver queen corn, golden bantam, early sunglow, Indian corn, sugar corn, pole corn, field corn, dent corn, flint corn, flour corn, blue corn, popcorn and waxy corn.
Dependencies are inferred from the claim text.