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.

The present invention concerns a biodegradable and compostable composition comprising i) 15-70% by weight of at least one biodegradable and/or decayable aromatic polyester; ii) 0-40% by weight of dolomite and/or calcium carbonate particles having a polished surface; iii) 0-30% by weight of starch of vegetable origin; iv) 1-5% by weight of at least one oil of vegetable origin; v) 5-30% by weight of an additive chosen from hydrated magnesium silicate such as talcum powder; vi) 0-50% by weight of at least one aliphatic polyester.

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.

A blackout curtain includes a sheet body having a blackout side and a face side that together extend to a perimeter. A fastener is provided for mounting the sheet body to or adjacent a window frame. The sheet body is constructed of a biodegradable and compostable material.

A method of forming a binder composition includes providing a urea-formaldehyde resin and combining one or more starch compounds with the urea-formaldehyde resin to form a starch modified urea-formaldehyde resin. The one or more starch compounds may be combined with the urea-formaldehyde resin so that the starch modified urea-formaldehyde resin includes about 1 wt. % to about 10 wt. % of the one or more starch compounds.

Provided herein is a molded cellulose foam having a smooth, dense surface fiber layer and a low density, open-cell structure interior, a process for compression-molding fiber foam into such molded cellulose foam, articles prepared with such foam, and articles prepared by such process.

This invention relates to a biodegradable film which is particularly suitable for the manufacture of packaging and is also characterised by high level mechanical properties.

A method for producing a thermoplastic resin composition, including: melt-kneading a mixture containing a polyester resin (A), a starch material (B), and water; and dewatering the melt-kneaded mixture to reduce a water content to 5% by weight or less. The mixture contains 25 to 55 parts by weight of the water per 100 parts by weight of a solid content of the starch material (B). A film containing a thermoplastic resin composition containing a biodegradable polyester resin (A) and a starch material (B), wherein the starch material (B) has a number-average particle diameter of 3 μm or less.

The invention relates to a method for producing a biodegradable thermoplastic starch-based article intended to come into contact with foodstuffs. In this method, the semi-crystalline starch granules are transformed into a homogeneous and almost amorphous material, called thermoplastic starch, by the addition of plasticizers at high temperatures and under shear. Thermoplastic starch is modified with organic acid during melt processing to prevent the retrogradation of starch. Moreover, cellulose derivatives are used as the reinforcement filler of thermoplastic starch. The article is produced using hot-pressing and then coating by immersion in a waterproofing solution.

An exemplary embodiment provides a method for preparing a latex composition for dip forming, the method including: (a) preparing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid monomer; (b) introducing an additive including an inorganic solvent, an emulsifier and starch into the monomer mixture; and (c) preparing a copolymer latex by polymerizing the monomer mixture, wherein a content of the starch is 0.1 to 4.9 parts by weight with respect to 100 parts by weight of the monomer mixture.