A husk plastic composite comprises a composition including: PVC 10˜20 wt %; vinyl chloride/vinyl acetate (VC/VAC) copolymer 10˜30 wt %; styrene-acrylonitrile copolymer (SAN) 1˜5 wt %; chlorinated polyethylene (CPE) 1˜5 wt %; rice husk powder 10˜40 wt %; inorganic filler 10˜40 wt %; internal lubricant 0.1˜1 wt %; external lubricant 0.1˜1 wt %, and heat stabilizer 1˜5 wt %. The VC/VAC copolymer in the husk plastic composition provided by the present invention can allow the composition to be processed by relatively lower processing temperature to save energy consumption. It will also prevent the husk powder from being burnt or decomposed due to high temperature during the heating process to allow this natural material being added in a large amount in the composition. The present invention can reduce the amount of PVC through a large amount of filling additives but still maintain in good product mechanical properties. The particle size of the husk is preferably in the range of 0.10˜0.60 mm for better hardness, stiffness and wood-like texture in the final product.

An eraser for removing strokes of writing, painting and/or drawing tools, including at least one binder and at least one plasticizer. The eraser includes at least one plasticizer in the form of pentaerythritol tetravalerate.

An eraser for removing strokes of writing, painting and/or drawing tools, including at least one binder and at least one plasticizer. The eraser includes at least one plasticizer in the form of pentaerythritol tetravalerate.

In one or more embodiments, the present invention provides a polymer composition for use in, cosmetics, coatings, inks, polymer compounding formulation comprising an all-natural, DHN-based, nitrogen-free black knot fungal (BKF) allomelanin extracted from black knots (a fungal growth formed by Apiosporina morbosa). The BKF melanin is naturally sourced, economically extracted, and quite unexpectedly, has been found to have better UV absorbing and antioxidant properties than synthetic melanin (polydopamine) and commercially available sepia melanin. In various embodiments, a small amount of the BKF melanin is substantially uniformly blended into a polymer or similar material to create a composition having excellent UV absorption and antioxidant properties. Surprisingly, it has also been found that the UV absorption and antioxidant properties of these polymer compositions can withstand heating and other processing steps associated with polymers, and in particular, rubber without significant reduction in effectiveness.

In one or more embodiments, the present invention provides a polymer composition for use in, cosmetics, coatings, inks, polymer compounding formulation comprising an all-natural, DHN-based, nitrogen-free black knot fungal (BKF) allomelanin extracted from black knots (a fungal growth formed by Apiosporina morbosa). The BKF melanin is naturally sourced, economically extracted, and quite unexpectedly, has been found to have better UV absorbing and antioxidant properties than synthetic melanin (polydopamine) and commercially available sepia melanin. In various embodiments, a small amount of the BKF melanin is substantially uniformly blended into a polymer or similar material to create a composition having excellent UV absorption and antioxidant properties. Surprisingly, it has also been found that the UV absorption and antioxidant properties of these polymer compositions can withstand heating and other processing steps associated with polymers, and in particular, rubber without significant reduction in effectiveness.

A plastic composition consisting essentially of plastic matter, inorganic matter, and organic matter. The plastic composition has a notched izod impact above 12 J/m, a surface energy of at least 40 dyne/cm and, and when the plastic composition is subjected to injection molding, at least one of a tensile strength of above about 2.7 MPa, a tensile modulus of above about 600 MPa, a flexural modulus above about 690 MPa, a flexural strength above about 5.6 MPa, and a Charpy Impact above about 1.5 KJ/m2.

A curable casting compound, including a polymeric binder and at least one particulate filler incorporated therein, wherein the filler is ground fruit kernels and/or fruit shells, wherein either only the at least one filler composed of ground fruit kernels and/or fruit shells or additionally at least one further particulate inorganic filler is present.

A disposable eggshell eco-friendly material and manufacturing method are disclosed. The disposable eggshell eco-friendly material, for volume ratio, includes 50%-80% of calcined eggshell powder, 10%-48% of biodegradable polymer, 1%-5% of natural degradation agent, and 1%-5% of natural binding agent, which are subjected to a mixing and stirring step according to such ratios, and then subjected to a pelletizing step to be first prepared as a plurality of disposable eggshell eco-friendly material pellets, and the disposable eggshell eco-friendly material pellets being then subjected to a shaping and forming step by means of one of film blowing, extruding, vacuum forming, bottle blowing, injecting, and drawing, to obtain a disposable eggshell eco-friendly material product that is disposed of after one time of use.

A disposable eggshell eco-friendly material and manufacturing method are disclosed. The disposable eggshell eco-friendly material, for volume ratio, includes 50%-80% of calcined eggshell powder, 10%-48% of biodegradable polymer, 1%-5% of natural degradation agent, and 1%-5% of natural binding agent, which are subjected to a mixing and stirring step according to such ratios, and then subjected to a pelletizing step to be first prepared as a plurality of disposable eggshell eco-friendly material pellets, and the disposable eggshell eco-friendly material pellets being then subjected to a shaping and forming step by means of one of film blowing, extruding, vacuum forming, bottle blowing, injecting, and drawing, to obtain a disposable eggshell eco-friendly material product that is disposed of after one time of use.

A biodegradable foam which includes a poly-ester-based polyurethane foam and a mixture comprised of a soil-dwelling carbon-digesting bacteria embedded in a carrier compound. The mixture of the soil-dwelling carbon-digesting bacteria is homogenously dispersed throughout the polyester-based polyurethane foam. This biodegradable foam exhibits biodegradation rates higher than a polyester-based polyurethane foam absent the soil-dwelling carbon-digesting bacteria.