27-05-2021 дата публикации
Номер: US20210155777A1
Принадлежит:
A packaging material composition may be biodegradable and water-soluble. The packaging material may include a biodegradable nonionic polysaccharide, a biodegradable ionic polysaccharide, and a plasticizer. Optionally, additional components may be added to the packaging material for a desired purpose. Additional components may include a biocide, clay, metal oxides (i.e. titanium dioxide and zinc oxide), modified nanoclays, one or more crosslinkers, other functional agents, and residual solvent from the packaging material production process. 1: A packaging composition , comprising:a biodegradable nonionic polysaccharide;a biodegradable ionic polysaccharide; anda plasticizer.2: The packaging composition of claim 1 , wherein said nonionic polysaccharide is at least one of pullulan claim 1 , a pullulan derivative claim 1 , inulin claim 1 , guar claim 1 , cellulose claim 1 , konjac claim 1 , agar claim 1 , agarose claim 1 , curdlan claim 1 , hydroxypropylmethyl cellulose claim 1 , hydroxyethyl cellulose claim 1 , methyl cellulose claim 1 , hydroxypropyl cellulose claim 1 , hydroxypropyl guar claim 1 , cellulose acetate claim 1 , cellulose aldehyde claim 1 , carboxymethyl starch claim 1 , hydroxypropyl starch claim 1 , hydroxyethyl starch claim 1 , starch acetate claim 1 , and starch aldehyde.3: The packaging composition of claim 1 , wherein said ionic polysaccharide is at least one of carboxymethyl cellulose claim 1 , alginate claim 1 , xanthan gum claim 1 , gum arabic claim 1 , gum tragacanth claim 1 , locust bean gum claim 1 , tara gum claim 1 , carboxymethyl starch claim 1 , cationic starch claim 1 , chitosan claim 1 , gelatin claim 1 , gellan claim 1 , pectin claim 1 , and carrageenan.4: The packaging composition of claim 1 , wherein said plasticizer is at least one of sorbitol claim 1 , glycerin claim 1 , polyethylene glycol claim 1 , 1 claim 1 ,2-propanediol claim 1 , 1 claim 1 ,3-propanediol claim 1 , 1 claim 1 ,2-butane diol claim 1 , 1 claim 1 ,3-butane diol ...
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