The present invention relates to a process for degrading a plastic product comprising at least one polymer, said process comprising the steps of foaming at least partially the plastic product; and depolymerizing at least one target polymer of the at least partially foamed plastic product, wherein the step of foaming is performed at a temperature at which the plastic product is in a partially or totally molten state.

Polymeric composition comprising, with respect to the total composition: i) 30-95% by weight, preferably between 50-85% by weight with respect to the sum of components i)-vi), of at least one polyester comprising: a) a dicarboxylic component comprising, with respect to the total of the dicarboxylic component: a1) 30-70% by moles of units deriving from at least one aromatic dicarboxylic acid; a2) 70-30% by moles of units deriving from at least one saturated aliphatic dicarboxylic acid; a3) 0-5% by moles of units deriving from at least one unsaturated aliphatic dicarboxylic acid; b) a diol component comprising, with respect to the total diol component: b1) 95-100% by moles of units deriving from at least one saturated aliphatic diol; b2) 0-5% by moles of units deriving from at least one unsaturated aliphatic diol; ii) 0.1-50% by weight with respect to the sum of components i)-vi), of at least one polymer of natural origin; iii) 0.1-10% by weight with respect to the sum of components i)-vi) of at least one polyhydroxy alkanoate different from a lactic acid polyester referred to in point iv); iv) 0-3% by weight with respect to the sum of components i)-vi) of at least one lactic acid polyester; v) 0-1% by weight, preferably 0-0.5% by weight, with respect to the sum of the components i)-vi) of at least one cross-linking agent and/or a chain extender and/or hydrolytic stabilizer comprising at least one compound di- and/or polyfunctional containing isocyanate, peroxide, carbodiimide, isocyanurate, oxazoline, epoxide, anhydride, diviniether groups and mixtures of these; vi) 0-15% by weight, with respect to the sum of components i)-vi), of at least one inorganic filling agent.

Thermoformable and biodegradable cellulose acetate compositions comprising at least one cellulose acetate at least one plasticizer, and at least one additional component chosen from a filler, additive, biodegradable polymer, stabilizer, or odor modifier are disclosed. The compositions are formed into films, sheets, and articles.

The instant invention concerns a process for fragmenting a polymer chain, comprising an oxidative degradation step wherein the polymer chain is contacted with a reduced form of a metal M and an oxidant such as dioxygen, and wherein the polymer carries covalently bound chemical groups acting as a ligand of said reduced form of the metal M.

The invention also relates to methods making use of this fragmentation process as a first step of a degradation process of the polymer especially useful for avoiding the negative impact of a polymer to the environment. In this connection, the invention relates to the use of polymers carrying chemical groups acting as a ligand for a reduced form of a metal M, as a polymer biodegradable in an environment wherein the reduced form of a metal M is present.

Compositions include a plurality of polymer particulates comprising a matrix polymer and one or more types of nanoparticles selected from the group consisting of biopolymer nanoparticles, biomineral nanoparticles excluding biomineralized silica alone, and any combination thereof. Illustrative examples of such nanoparticles may include cellulose nanoparticles, hydroxyapatite nanoparticles, or any combination thereof associated with the matrix polymer. The polymer particulates may be prepared by melt emulsification. Methods include depositing such polymer particulates in a powder bed; and heating a portion of the powder bed to consolidate a portion of the polymer particulates into a consolidated part having a specified shape. The matrix polymer may be biodegradable and lose at least about 40% mass in six days in a phosphate buffer solution (0.2 M, pH 7.0) containing 0.2 mg/mL of lipase obtained from Pseudomonas cepacia (≥30 U/mg) and incubated at 37° C.

This invention relates to biodegradable starch-based pellets which foamable by irradiation, which are particularly suitable for the manufacture of foam articles, characterised in that they have a porous structure with a low porous external skin. This invention also relates to foam articles obtained from these.

The present invention relates to a molding made of expanded bead foam, wherein at least one fiber (F) is partly within the molding, i.e. is surrounded by the expanded bead foam. The two ends of the respective fibers (F) that are not surrounded by the expanded bead foam thus each project from one side of the corresponding molding. The present invention further provides a panel comprising at least one such molding and at least one further layer (S1). The present invention further provides processes for producing the moldings of the invention from expanded bead foam or the panels of the invention and for the use thereof, for example as rotor blade in wind turbines.

The invention relates to a for recycling fabric into plastic granule for plastic manufacturing processes, the method comprising the steps of: a) Collecting fabric comprising fabric fibers b) Pulverizing the fabric into a powder of fabric particles c) Pelletizing the powder with a binder such that fabric pellets comprising the powder of fabrics are formed d) Extruding a mixture of the fabric pellets and a plastic compound into plastic granule.

There is provided a spherical organic-inorganic composite particle having good biodegradability. The organic-inorganic composite particle according to the present invention includes 1 to 79% by weight of a silica component and 21 to 99% by weight of a biodegradable plastic. The organic-inorganic composite particle has an average particle diameter d.sub.1 of 0.5 to 25 μm, a true density of 1.03 to 2.00 g/cm.sup.3, and a sphericity of 0.80 or more. A cosmetic product including the organic-inorganic composite particle having such properties has excellent texture properties.

A biodegradable resin composition and a method for producing the biodegradable resin composition are disclosed. The biodegradable resin includes three components, polyethylene, a biodegradable resin, and at least one selected from polybutylene adipate terephthalate and maleic anhydride copolymer, thereby providing excellent compatibility and mechanical properties.