Film Forming Spreading Agents
The present composition comprises: (a) 99.80% by weight or less of at least one particle; (b) film forming spreading agent present in an amount of: (i) equal to or greater than 0.20% by weight if a spreader inhibitor is not present or (ii) equal to or greater than about 0.35% by weight if a spreader inhibitor is present; and optionally (c) at least one volumization agent. The present composition may be used in agricultural compositions and in non-agricultural uses.
1 . A composition comprising:
(a) 99.80% by weight or less of at least one particle;
(b) film forming spreading agent present in an amount of: (i) equal to or greater than 0.20% by weight if a spreader inhibitor is not present or (ii) equal to or greater than about 0.35% by weight if a spreader inhibitor is present; and optionally (c) at least one volumization agent.
2 . The composition of claim 1 wherein said film forming spreading agent (b)(i) is present.
3 . The composition of claim 1 wherein said film forming spreading agent (b)(ii) is present.
4 . The composition of claim 1 wherein said film forming spreading agent (b) is in dry form.
5 . The composition of claim 1 wherein said particle (a) is a mineral.
6 . The composition of claim 1 wherein said particle (a) is calcined kaolin or hydrous kaolin.
7 . The composition of claim 1 wherein said particle (a) is calcium carbonate.
8 . The composition of claim 1 wherein said film forming spreading agent (b) is a water soluble hydroxypolymer containing one hydrophobic group or lipophilic group per repeating unit of said hydroxypolymer.
9 . The composition of claim 1 wherein said film forming spreading agent (b) is a modified hydroxypolymer crosslinked with crosslinking agents.
10 . The composition of claim 1 wherein said film forming spreading agent (b) is a cross-linked polymer.
11 . The composition of claim 1 wherein said film forming spreading agent (b) is high molecular weight polyvinyl compound having an average molecular weight of at least about 85,000 Daltons or a minimum viscosity of about 25 to 50 centipoises ±5 cps measured at 4 percent w/w polyvinyl alcohol concentration in water.
12 . The composition of claim 1 wherein said film forming spreading agent (b) is high molecular weight cellulose defined as having an average measured viscosity for a 2% solution of at least about 1.0 millipascals/second® 20° C.
13 . The composition of claim 1 wherein said film forming spreading agent (b) is a volumization agent also.
14 . The composition of claim 13 wherein said film forming spreading and volumization agent is high molecular weight celluloses defined as having an average measured viscosity for a 2% solution of at least about 1.0 millipascals/second® 20° C.,
15 . The composition of claim 13 wherein said film forming spreading and volumization agent is modified cellulose crosslinked with crosslinking agents.
16 . The composition of claim 1 additionally comprising at least a volumization agent (c).
17 . The composition of claim 16 wherein said volumization agent (c) is selected from the group consisting of gelatin, polyacrylamides, polyamines, polyacrylates, polydiallydimethylammonium chloride, epichlorohydrin-dimethylamine, and mineral.
18 . The composition of claim 16 wherein said volumization agent (c) is gelatin or animal glue.
19 . The composition of claim 1 wherein said particles (a) comprise a blend of two different particles.
20 . The composition of claim 19 wherein said blend is calcined clay and hydrous clay.
21 . The composition of claim 20 wherein said clay is kaolin.
22 . An agricultural composition comprising the composition of claim 1 .
23 . A film comprising said agricultural composition of claim 22.