A powdered composition useful for the preparation of a biodegradable material, said composition comprising 40 to 95 wt. % of a gypsum containing material that is environmentally acceptable; 0 to 60 wt. % of particles of at least one environmentally acceptable filler; and 3 to 10 wt. % of an environmentally acceptable binding agent. A pourable, water-containing, uncured and biodegradable composition comprising a mixture of a component A and a component B. The component A comprises: 40 to 95 wt. % of a gypsum containing material that is environmentally acceptable; 0 to 60 wt. % of particles of at least one environmentally acceptable filler; and 3 to 10 wt. % of an environmentally acceptable binding agent. The component B comprises water. The weight ratio component A: component B varies from 100:40 to 100:100. Biodegradable articles, methods and uses for preparing the pourable, water-containing, uncured and biodegradable articles (e.g. funeral urn).

One or more techniques and/or systems are disclosed for a dry-type lubricant for use in a dry product hopper to help improve dry product flow and to improve anti-jamming properties of the dry product. The example lubricant can comprise a hydrophilic fiber, such as cellulose, having a width to length aspect ratio that provides a thin fiber. A plurality of hydrophobic particles are deposited on the surface of the fiber, resulting in a fiber surface exhibiting amphiphobic properties. Further, the fiber can operably absorb water, and then releases the absorbed water to the surface of the fiber under mechanical stress, such as when mixed with a product in a hopper. This can result in the water being disposed on the surface of the fiber, to provide lubrication to a product in a hopper to improve flow and anti-jamming characteristics of the product in the hopper.

A biodegradable composite material which is produced by polymerizing a mixture of an aqueous dispersion of a natural polymer nanofiber including any one or more of a chitin nanofiber and a cellulose nanofiber, a dicarboxylic acid or a derivative thereof, and a diol. The biodegradable composite material has excellent biodegradable and mechanical properties.

A thermoformable and biodegradable cellulose acetate composition comprising at least one cellulose acetate and either polyethylene glycol or m ethoxy polyethylene glycol are disclosed. The compositions are formed into films, sheets, and articles.

The present invention relates to a masterbatch composition comprising high concentration of biological entities having a polymer-degrading activity and uses thereof for manufacturing biodegradable plastic articles.

A method (((100))) of obtaining a bioplastic material is disclosed. The method (((100))) includes adding a carbon polymer and a solvent into a batch container then mixing the carbon polymer and the solvent thoroughly to obtain a base mixture, adding a plasticizer complex and an enzyme to the base mixture and mixing thoroughly to obtain a first mixture, adding a fertilizer material to the first mixture and mixing thoroughly to obtain a second mixture, supplying a heat with a predefined temperature to the second mixture, wherein once the second mixture converts to a gel-like semi-solid, then transfer the gel-like semi-solid mixture to a cooling system, incubating the gel-like semi-solid mixture to the cooling system for a predefined period of time. The method further includes molding the incubated gel-like semi-solid mixture into required shapes and forms.

A method of making a magnetically-drivable microrobot that is suitable for carrying and delivering cells includes photo-curing a photo-curable material composition to form a body of the magnetically-drivable microrobot. The photo-curable material composition includes a degradable component, a structural component, a magnetic component, and a photo-curing facilitation composition including a photoinitiator component and a photosensitizer component.

Disclosed are a protective starch-based film and its preparation method and application, belonging to the field of food packaging. According to the method for preparing the protective starch-based film, surfaces of zinc oxide nanoparticles are enabled to adsorb tannic acid and iron ions under the action of metal coordination by controlling the pH to obtain metallic polyphenol network coated zinc oxide nanoparticles, dispersion of the obtained nanoparticles is added to a starch gelatinization solution, and a melanin-like precursor is simultaneously added to form mixed liquid; and by controlling the pH of the mixed solution, π-π stacking, self-polymerization and metal coordination are induced, so that a stable protective starch-based film with a nano-reinforced interpenetrating network structure is formed. The method is simple, green, pollution-free and energy-saving, and the prepared starch-based degradable film has remarkable ultraviolet-shielding, mechanical and antibacterial properties, thus having wide application prospects in the field of food packaging.

An earth plant-based compostable biodegradable composition for the formation of a bioplastic and method of producing said resin, the composition comprising: about 17.5 to 45% ethanol-based green polyethylene by weight, about 20 to 25% calcium carbonate by weight, about 2 to 12% hemp hurd or soy protein by weight, about 32 to 45% starch by weight, and about 0.5 to 1% biodegradation additive by weight to enable biodegradation and composting of the bioplastic; wherein the composition is produced by first mill grinding the ethanol-based green polyethylene, calcium carbonate, hemp hurd or soy protein, starch and the biodegradation additive into fine powders, then mechanically mixing the fine powders one by one into a final mixture for about 5-25 minutes at a time, dry and without heat, and then heating the final mixture to about 220 to 430 degrees Fahrenheit.

The present invention relates to polymer compositions comprising at least one basic additive, and processes comprising at least one process step to obtain the polymer composition or articles comprising the polymer composition. The polymer composition generally displays an enhanced biodegradability.