WATER MISCIBLE MICROEMULSIONS OF WATER INSOLUBLE FILM FORMING POLYMERS
A water miscible emulsion composition which is essentially free of long-chain alkylpyrrolidone and aromatic oil comprising: (i) a long chain substituted amide; (ii) a water insoluble film forming polymer; (iii) a water soluble anionic surfactant; and (iv) optionally, a bioactive, is particularly useful in providing water repellency and delaying the onset of fungi growth on crops and leaves.
1 . A water miscible emulsion composition which is essentially free of long-chain alkylpyrrolidone and aromatic oil comprising:
(i) a long chain substituted amide;
(ii) a water insoluble film forming polymer;
(iii) a water soluble anionic surfactant; and
(iv) optionally, a bioactive.
2 . A water miscible emulsion composition according to claim 1 , wherein the long chain substituted amide is dialkyl acid amide or dialkyl acid amide ester having the formula:
wherein, n 1 =2-18; n 2 =0-8 and n 1 +n 2 ≧4,
R 1 and R 2 are lower alkyl with 1-4 carbon atoms,
R═H, OH, OR 3 , COOR 3 , C(O)N(R 3 ) 2 , and
R 3 =lower alkyl chain with 1-4 carbon atoms.
3 . A water miscible emulsion composition according to claim 2 , wherein R 1 ═R 2 ═CH 3 ; R═H; n 2 =0 and n 1 =5-11.
4 . A water miscible emulsion composition according to claim 3 , wherein R 1 ═R 2 ═CH 3 ; R═H; n 2 =0 and n 1 =7-9.
5 . A water miscible emulsion composition according to claim 2 , wherein R 1 ═R 2 ═CH 3 ; R═COOCH 3 ; n 2 =0 and n 1 =5-11.
6 . A water miscible emulsion composition according to claim 2 , wherein the dialkyl acid amide or dialkyl acid amide ester is selected from the group consisting of N,N-dimethyl hexamide, N,N-dimethyl octanamide, N,N-dimethyl decanamide, N,N-dimethyl dodecanamide, N—N-dimethyl decamide, N,N-dimethyl tetradecanamide, and N,N dimethyl amino alkyl acetate and combinations thereof.
7 . A water miscible emulsion composition according to claim 1 , wherein the film-forming polymer is selected from the group consisting of water-insoluble graft polymer of N-vinylpyrrolidone and an α olefin selected from the group consisting of C 16 α-olefins in a 50:50 weight ratio and C 20 α-olefins in a 20:80 weight ratio; polyacrylate; polystyrene acrylate copolymer; polystyrene butadiene copolymer; natural wax; polyisoprene copolymer and combinations thereof.
8 . A water miscible emulsion composition according to claim 7 , wherein the film-forming polymer has a number average molecular weight up to about 50,000.
9 . A water miscible emulsion composition according to claim 1 , wherein the anionic surfactant is selected from the group consisting of lactylated fatty acid salts, anionic phospholipids, anionic non-fatty carboxylic acid esters of fatty acid/esters and their metal salts, fatty acids and their metal salts, alkali metal salts, alkaline earth metal salts and ammonium or amine salts or mixtures thereof, carboxylate salts, sulfates, sulfonates, phosphonates, phosphates, sarcocinates and mixtures thereof.
10 . A water miscible emulsion composition according to claim 1 , comprising from about 2 to 90% long chain substituted amide, from about 2 to 30% anionic surfactant, from about 1 to 50% water insoluble polymer and from about 1 to 50% water based on the total weight of the emulsion.
11 . A water miscible emulsion composition according to claim 1 , wherein the bioactive is selected from agricultural active, fertilizers, preservatives, nutrients, plant growth accelerants, herbicides, plant growth regulators, insecticides, bactericides, fungicides, nematocides, fumigants, paints, pigments, stains, light stabilizers, UV absorbers, synthetic hydrocarbons, radical scavengers, resins, natural waxes, fragrances, organic solvents, monomers for polymers, disinfectants and/or combinations thereof.
12 . A water miscible emulsion composition according to claim 1 , further comprising co-emulsifiers, co-solvents, wetting combinations, ionic emulsifiers, stabilizers and surface active buffers and mixtures thereof.
13 . A water miscible emulsion composition according to claim 1 , which on dilution with water forms a clear liquid.
14 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having adhesive properties.
15 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having protective properties.
16 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having decorative properties.
17 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having lubricating properties.
18 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having hydrophobic properties.
19 . A water miscible emulsion composition according to claim 1 , wherein the water insoluble polymer forms a film having hydrophilic properties.
20 . A method for forming a polymeric film on a substrate comprising applying the composition of claim 1 onto the substrate and removing the water.
21 . A method for treating plants or soil with an agriculturally active comprising applying the composition of claim 1 to the plant or soil.
22 . A method for forming the water miscible emulsion composition of claim 1 comprising the steps of
A) mixing a solid agriculturally active chemical in particulate form with NaHCO 3 in particulate form;
B) mixing the product from step A) with a composition comprising
(i) a long chain substituted amide
(ii) a water insoluble film forming polymer;
(iii) an anionic surfactant other than a long-chain alkylpyrrolidone; and
(iv) optionally diluted with water.