Polymeric material composition
The present invention provides a polymeric material composition comprising: (a) at least one superabsorbent polymer; and (b) 0.1% w/w to 2% w/w microporous silicon dioxide; wherein polymeric material composition exhibits non-hygroscopic characteristics with moisture content less than 15% w/w of the total weight of the polymeric material composition at room temperature. The present invention further provides process of preparing said polymeric composition and method of its application.
1 . A polymeric material composition comprising:
(a) at least one superabsorbent polymer; and
(b) 0.1% w/w to 2.5% w/w microporous silicon dioxide;
wherein the composition has a moisture content of less than 15% w/w of the total weight of the composition at room temperature, wherein the at least one superabsorbent polymer has a particle size ranging from about 2,380 μm to about 149 μm, wherein the at least one superabsorbent polymer comprises starch-g-poly (2-propenamide-co-2-propenoic acid) potassium salt, and the composition has a moisture content lesser than 15% w/w of the total weight of said composition at room temperature in humidity ranging from 80-90%.
2 . The polymeric material composition as claimed in claim 1 wherein the at least one superabsorbent polymer is in the form of granules or powder.
3 . The polymeric material composition as claimed in claim 1 wherein the at least one superabsorbent polymer has a water absorption capacity from about 300 times to about 1000 times its weight.
4 . The polymeric material composition as claimed in claim 1 wherein the at least one microporous silicon dioxide is selected from amorphous silica and precipitated silica.
5 . The polymeric material composition as claimed in claim 1 wherein the polymeric material composition exhibits non-hygroscopic characteristics.
6 . The polymeric material composition as claimed in claim 1 wherein the composition comprises 0.1% w/w to 2% w/w microporous silicon dioxide.
7 . A process of preparing a polymeric material composition comprising a superabsorbent polymer, wherein the superabsorbent polymer comprises starch-g-poly (2-propenamide-co-2-propenoic acid) potassium salt; and 0.1% w/w to 2% w/w microporous silicon dioxide; wherein the polymeric material composition exhibits non-hygroscopic characteristics with moisture content less than 15% w/w of the total weight of the composition at room temperature and in humidity ranging from 80-90%, and wherein the superabsorbent polymer has a particle size ranging from about 2,380 μm to about 149 μm; and wherein process comprises the steps of:
1. contacting the superabsorbent polymer and microporous silicon dioxide in a mixing vessel; and
2. blending the contents of step (1) to obtain the polymeric material composition.
8 . A method of treating soil, plants and plant propagation material by applying to their locus, a polymeric material composition comprising: at least one superabsorbent polymer, wherein the at least one superabsorbent polymer comprises starch-g-poly (2-propenamide-co-2-propenoic acid) potassium salt; and 0.1% w/w to 2% w/w microporous silicon dioxide, wherein the polymeric material composition exhibits non-hygroscopic characteristics with moisture content lesser than 15% w/w of the total weight of the composition at room temperature and in humidity ranging from 80-90%, and wherein the superabsorbent polymer has a particle size ranging from about 2,380μm to about 149 μm.
9 . A process of using the polymeric material composition as claimed in claim 1 for water retention, the process comprising applying the polymeric material composition to a locus of a plant or plant propagation material.