Biodegradable plastics, method for production thereof and use thereof
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United States of America Patent
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May 2, 2017
Issued Date -
N/A
app pub date -
Apr 23, 2013
filing date -
May 7, 2012
priority date (Note) -
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Abstract
The present invention concerns a plastic composition which is biodegradable, and which does not discharge contaminants during incineration or leave plastic fragments after decomposition. According to the invention the composition comprises: (i) 30-50% by weight of a polyester which is biodegradable and/or decayable; (ii) 20-40% by weight of starch from vegetable oil origin from corn, potatoes, and/or sunflower; (iii) 20-40% by weight of a filler composition comprising dolomite and/or calcium carbonate, wherein the filler composition particles have a polished surface; and (iv) 1-5% by weight of a binding agent comprising a resin ester of vegetable origin; wherein said polyester and said starch together form a bioplastic base composition and together comprise 55-79% by weight of the total weight of said plastic composition. The present invention further concerns a method for preparing said plastic composition; a plastic film prepared of said plastic composition; and a waste bag prepared of said plastic film.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- B09B:DISPOSAL OF SOLID WASTE
- B65D:CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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