Biodegradable polymer composition
AssigneeBnt Force Biodegradable Polymers Pvt Ltd.
InventorSupreethi Sumanam
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Abstract
The invention disclosed in this application relates to a novel biodegradable additive polymer composition useful for the preparation of biodegradable plastic products which comprises of a mixture of (i) a polymer selected from Polyethylene, polypropylene, poly styrene, poly vinyl chloride or a mixture thereof (ii) Cellulose (iii) Amides (iv) nutrients selected from Blue green algae and/or Yeast and (v) Water. This composition can be mixed with a virgin polymer to get a master polymer. The master batch composition may be mixed with a virgin polymer, which is useful for preparing products which are biodegradable.
Claims13
A biodegradable polymer composition comprising a mixture of (i) a polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and polyvinyl chloride, (ii) cellulose, (iii) a nitrogen-containing compound, (iv) a nutrient selected from the group consisting of blue-green algae and yeast, and (v) water, wherein the amount of the polymer used is in the range from 90 to 99% by weight of the composition, the amount of cellulose used is in the range from 0.35 to 3.50% by weight of the composition, the amount of nitrogen-containing compound used is in the range from 0.15 to 1.50% by weight of the composition, the amount of nutrient used is in the range from 0.30 to 3.0% by weight of the composition, and the amount of water used is in the range of 0.20 to 2.0% by weight of the composition.
A process for preparing a biodegradable polymer composition comprising the steps of:
- (a) mixing (i) a polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and polyvinyl chloride, (ii) cellulose, (iii) a nitrogen-containing compound, (iv) a nutrient selected from the group consisting of blue-green algae and yeast, and (v) water, at a temperature in the range of 25 to 100 degrees centigrade, wherein the amount of the polymer used is in the range from 90 to 99% by weight of the composition, the amount of cellulose used is in the range from 0.35 to 3.50% by weight of the composition, the amount of nitrogen-containing compound used is in the range from 0.15 to 1.50% by weight of the composition, the amount of nutrient used is in the range from 0.30 to 3.0% by weight of the composition, and the amount of water used is in the range of 0.20 to 2.0% by weight of the composition;
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- (b) keeping the resulting mixture undisturbed for a period of 12 to 36 hours.
A process for the preparation of a biodegradable master batch polymer composition comprising mixing a biodegradable polymer composition comprising a mixture of (i) a polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and polyvinyl chloride, (ii) cellulose, (iii) a nitrogen-containing compound, (iv) a nutrient selected from the group consisting of blue-green algae and yeast, and (v) water, wherein the amount of the polymer used is in the range from 90 to 99% by weight of the composition, the amount of cellulose used is in the range from 0.35 to 3.50% by weight of the composition, the amount of nitrogen-containing compound used is in the range from 0.15 to 1.50% by weight of the composition, the amount of nutrient used is in the range from 0.30 to 3.0% by weight of the composition, and the amount of water used is in the range of 0.20 to 2.0% by weight of the composition, with a virgin polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and polyvinyl chloride.
Dependencies are inferred from the claim text.