The present invention relates to new aqueous curable binder compositions comprising a carbohydrate compound, a first cross linker and a second cross linker different from the first capable of undergoing radical polymerization and possibly a free radical initiator.

The invention relates to an aqueous binder composition for mineral fibers comprising at least one hydrocolloid.

A stretch-resistant potato starch hydrogel and a preparation method thereof are provided. The preparation method includes the following steps: S1, preparation of gel slices; S2, aging of gel slices; S3, rehydration of gel slices; s4, tensile property and texture property test: testing the tensile property and texture property of the rehydrated potato starch gel by TG probe of a texture analyzer; S5, determining the optimal aging time, rehydration temperature and rehydration time of the potato starch hydrogel. The invention uses the above-mentioned stretch-resistant potato starch hydrogel and the preparation method thereof to obtain the starch hydrogel PSH.sub.18-100-20S with excellent tensile strength, and the tensile strength is 750%-800%. The preparation parameters are determined, which provides a theoretical basis for the application of starch hydrogel in food.

A foam comprising starch and urea is described. A composition of the foam, by weight percent, includes a starch weight percent representative of the starch included in the foam and a urea weight percent representative of the urea included in the foam. The starch weight percent is greater than the urea weight percent.

A composite material, comprising a first component and a second component, the first component forming a three-dimensional mesh-type structure and the second component forming a matrix at least regionally filling the interstices between the first component, wherein the second component at least partially comprises an expanded material.

A polymer composition may have excellent biodegradability and absorption capacity. The polymer composition may include a polysaccharide component. The polymer composition may have excellent biodegradability and absorption capacity by controlling the ratio of amylose in the polysaccharide component, the ratio of amylopectin in the polysaccharide component, and the molecular weight of the polysaccharide component.

The present invention relates to new aqueous curable binder compositions comprising a carbohydrate compound, a first cross linker and a second cross linker different from the first capable of undergoing radical polymerization and possibly a free radical initiator.

A hydrophobic bioplastic film and a method of manufacturing the hydrophobic bioplastic film for multiple-use are provided. The hydrophobic bioplastic film provides unique food preservation as an environment-friendly alternative to other plastics. The hydrophobic bioplastic film includes a chitosan-based bioplastic film that is coated with a plurality of hydrophobic nanoparticles.

A foam precursor, a foam, and methods for making the foam precursor and the foam is described. The foam includes unmodified starch, polybutylene adipate-co-therephthalate (PBAT), and water. A PBAT weight percent representative of the PBAT included in the foam precursor is from 10% to 40%. A water weight percent representative of the water included in the foam precursor is from 1% to 14%. The PBAT weight percent is greater than the water weight percent. A density of the foam is from 10 kg/m.sup.3 to 80 kg/m.sup.3.

A starch slurry includes a starch in an amount of approximately 25 to 91 weight percent, a plasticizer in an amount of approximately 3 to 30 weight percent, water in an amount of approximately 5 to 60 weight percent, and a blowing agent in an amount of approximately 1 to 30 weight percent. The starch slurry can have a bulk density of between approximately 10 to 100 pounds per cubic foot. The blowing agent may include sodium bicarbonate. The starch slurry can be used for generating foamed products or printing a starch foam.