The invention relates to a thermoplastic composition comprising: at least one mixture of polyesters (A) including at least one polylactic acid (A1) and at least one aliphatic polyester (A2) or a semi-aliphatic polyester other than polymer (A1); at least one starch (B); at least one organic plasticiser (C) for starch. The composition is characterised in that: the weight percentage of (A1) in relation to the weight of (A1) and (A2), expressed as dry weight, varies between 2 and 70%, advantageously between 10 and 50%, preferably between 18 and 30%; at least 50% of the weight of the polylactic acid (A1) is formed by semi-crystalline polylactic acid; and in that the weight ratio of starch (B)/organic plasticiser (C), expressed as dry weight, varies between 90/10 and 40/60.

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.

Bioplastic compositions containing between 2 wt. % and 25 wt. % of at least one starch, between 40 wt. % and 65 wt. % of at least one plasticizer, and between 1 wt. % to 10 wt. % of at least one acid are used as insulation materials. A method of making a bioplastic composition includes the steps of heating a first aqueous mixture containing at least one plasticizer and at least one acid; adding at least one starch to the first aqueous mixture to produce a second aqueous mixture; heating and mixing the second aqueous mixture to produce a precipitate; and separating the precipitate from residual liquid of the second aqueous mixture to produce a bioplastic composition.

A method of producing a thermoplastic starch by an in-situ reactive extrusion plasticization process and a method for preparing a starch/polymer blend by an in-situ reactive extrusion plasticization and compatibilization process. In the method, a plasticizer reaction precursor (or a plasticizing compatibilizer reaction precursor) is mixed with starch to adhere to the surface of the starch or enter the starch to break the intermolecular and intramolecular hydrogen bonds of the starch. Then a mixture of the plasticizer reaction precursor (or the plasticizing compatibilizer reaction precursor) and starch is subjected to extrusion to produce the thermoplastic starch (or the starch/polymer blend), where the reaction precursor undergoes an in-situ reaction on the surfaces of the starch and in the starch to form a macro-molecular plasticizer (or a plasticizing compatibilizer) to plasticize starch or provide plasticizing and compatibilizing effect on the starch/polymer blend.

Disclosed are a dry starch used in a field of biodegradable plastics, and a preparation method and use thereof. The dry starch used in a field of biodegradable plastics is prepared by removing moisture from a commercial starch, wherein the dry starch has a moisture content of not greater than 5 wt %; and starch granules have an internal organizational structure mainly in an amorphous form.

The present disclosure generally relates to films, such as multilayered films, that are suitable for use as stretch wraps, cling wraps and/or pallet wraps which according to some examples are compostable and/or biodegradable whilst maintaining stretch and cling properties. In particular, the films described herein comprise one or more film layers comprising a blend of starch-based thermoplastic resin and polybutylene adipate terephthalate (PBAT). The present disclosure is also directed to processes for preparing the films described herein.

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 thermoplastic starch composition acquired from compounding a mixture comprises starch-containing agricultural waste in 45 to 70% by weight of total composition that the agricultural waste contains starch content less than 50% in dry weight; thermoplastic synthetic polymer in 25 to 50% by weight of total composition; plasticizer in 1 to 10% by weight of total composition; and coupling agent in 1 to 5% by weight of total composition; wherein the compounding is performed at a first temperature which is higher than room temperature.

The instant invention relates to new film-forming compositions based on starchy material, comprising isosorbide. The instant invention also relates to products made from the film-forming compositions of the invention, in particular hard and soft capsules shells, and to methods for the manufacture of such products.

Formation of low-crystallinity phytosterol nanoparticles via cooling-controlled supercritical carbon dioxide (SCCO.sub.2) impregnation of phytosterols into biodegradable nanoporous starch aerogels and methods of preparing these aerogels are disclosed. The nanoporous starch aerogels increase water dissolution and bioaccessibility of the phytosterols, thereby making them available for preparation of high nutraceutical value foods.