The present invention is for a material composition based on plant fibers, which can be used for 3D-printing at small as well as large scales. The material composition is biodegradable, it is based on renewable ingredients, and it uses little energy for the material production and extrusion processes. The material composition contains plant fiber, which may be wood chips or cellulose, a binder, which may be starch or methyl cellulose, and a solvent, which may be water. The composition may also contain an acid, which may be vinegar, an additive to control the drying speed, and preservatives to prevent microbial growth. The material composition can be 3D-printed by a robot-controlled extruder, with a width and height of individual layers greater than 10.

A completely biodegradable cartridge for a water filter that can replace traditional non-biodegradable cartridges. The cartridge may also include one or two caps also made from biodegradable material.

The present invention relates to a method for producing biodegradable microspheres having improved safety and storage stability, and a method for producing the same. The present invention provides a method for preparing said biodegradable microspheres while minimizing the morphological changes of microspheres and significantly reducing residual solvents.

The invention concerns a polymer composite comprising: a. polymer in an amount of 5-94.5% by weight of the overall weight; b. milled oilseed meal in an amount of at least 5% by weight of the overall weight; c. plasticizer in an amount from 5-50% w/w of component b); d. optional filler, and e. optional additive, wherein c) is a solid plasticizer with a melting temperature in the range of 70 to 210°. The invention also concerns a process for its preparation, an intermediate, and a solid article comprising the polymer composite.

The invention concerns a polymer composite comprising:

a. biodegradable polymer in an amount of 5-94.5% by weight of the overall weight;
b. whole grain flour of cereal grass in an amount of at least 5% by weight of the overall weight;
c. plasticizer in an amount from 5-50% w/w of component b);
d. optional filler, and
e. optional additive, wherein
c) is a solid plasticizer with a melting temperature in the range of 70 to 210° . The invention also concerns a process for its preparation, an intermediate, and a solid article comprising the polymer composite.

A composition including at least one polyhydroxyalkanoate (PHA) having saturated side chains dissolved in at least one aromatic solvent between 50 g/1 and 200 g/l and preferably between 80 g/l and 180 g/l. The at least one PHA has a weight-average molecular weight (M.sub.w) not greater than 250,000 Da and preferably not greater than 150,000 Da. This composition is particularly suitable as a binder for coating products. The composition can be produced by mixing the PHA with the aromatic organic solvent and heating the mixture at a temperature close to the PHA melting temperature, maintaining the mixture under stirring until complete dissolution of the polymer. Alternatively, the composition can be produced by dissolution of the PHA in a non-aromatic organic solvent having low boiling temperature where the PHA is highly soluble, subsequent addition of the aromatic organic solvent and subsequent removal of the non-aromatic organic solvent by fractional distillation.

Disclosed are a biodegradable material and a preparation method and an application thereof, belong to the technical field of biodegradable materials. The preparation method includes mixing a certain amount of polyhydroxybutyrate-co-hydroxyvalerate copolymer (PHBV), polylactic acid (PLA), polybutylene adipate-terephthalate (PBAT) and epoxy chain extender or a certain amount of PHBV, PLA, polybutylene succinate (PBS) and epoxy chain extender, twin-screw extruding, cooling and cutting to obtain the biodegradable, green and environmentally friendly drinking straws.

The present invention relates to biodegradable structures for offering a way for individuals to relax outdoors in an environmentally-friendly and animal-friendly manner. The biodegradable structures include stages, bleachers, hunting blinds, and more, for enabling individuals to use the structures for enjoying an event and then leave the structures behind to biodegrade and naturally decompose over time to improve the proximal or adjacent environment. The structures can be used for different types of outdoor events and can come in different forms and sizes. The structures are formed of biodegradable materials like wood, cardboard, and biopolymers for fast decomposition in order to replenish the soil thereunder. The structures do not harm animals, nor the environment, while enabling individuals to enjoy the outdoors.

Provided is a cellulose composition, including a plurality of biocelluloses, wherein a diameter of the biocelluloses ranges from 20 to 30 nanometer, and a length of the biocelluloses ranges from 2000 to 3000 nanometer. The biocelluloses have good biocompatibility and can effectively enhance the efficiency of absorption and transmission of substances.

The present invention provides resin beads that can provide various types of products, such as a cosmetic having excellent tactile impression, spreadability on the skin, and transparency, that can be substituted for resin particles composed of a synthetic material derived from petroleum, and that have favorable biodegradability, and the present invention also provides various types of products, such as a cosmetic using the resin beads. The resin beads are formed with a resin containing cellulose as a main component. The resin beads have a cumulative 50% particle size on a volume basis of 50 μm or smaller, a degree of sphericity of 0.7 to 1.0, a degree of surface smoothness of 70 to 100%, a degree of solidity of 50 to 100%, and a biodegradation rate for 5 days, as measured in accordance with JIS K6950:2000 (ISO 14851:1999), of 20% or more, and the content of the cellulose in the resin is 90 to 100% by mass. In addition, the present invention provides a product of any one of a cosmetic, a dermatological preparation, a paint, a shaped article, a film, a coating agent, and a resin composition which contain the resin beads.