Abstract:
The present invention provides certain sulfonated copolyetherester compositions containing hydroxyalkanoic acids and processes for producing such sulfonated aromatic copolyetheresters. The invention further provides shaped articles, preferably in the shape of films, coatings and laminates, having improved thermal properties, wherein the shaped articles are produced from the certain sulfonated copolyetherester compositions. Some of these materials are also biocompostable. The sulfonated copolyetheresters are produced from a mixture of an aromatic dicarboxylic acid component, hydroxyalkanoic acid component, a sulfonate component, a poly(alkylene ether) glycol component, a glycol component, an optional other glycol component, an optional branching agent, and an optional color reducing agent.
Abstract:
This invention provides polyester compositions containing pumice fillers, and shaped articles formed from the polyester compositions. Also provided are polyester compositions containing perlite fillers, and shaped articles formed from the compositions. The polyester compositions can also contain one or more other fillers, and can also optionally contain a heavy metal-containing or heavy metal-free catalyst. The invention further provides processes for producing the polyester compositions, and shaped articles formed therefrom.
Abstract:
A composite composition includes at least one organic polymer compound having biodegradability, vegetable fibers, and a hydrolysis inhibitor for the organic polymer compound having biodegradability.
Abstract:
A resin composition (AA) comprising an aliphatic polyester or aliphatic polyamide (component (A)), a plastic having a melting point or glass transition temperature (Tg) of −10° C. or more (component (B)) and a radical generating agent (C), wherein the compounding ratio of the component (A), the component (B) and the radical generating agent (C), based on the total weight thereof, is: 1 to 98.995% by weight of the component (A), 98.995 to 1% by weight of the component (B), and 0.005 to 5% by weight of the radical generating agent (C), and an aliphatic unsaturated polybasic acid (a) is contained in the polymer constituent of the component (A) and/or the component (B). The resin composition is suitable as a starting material of biodegradable material which maintains transparency, is free of bleeding of a plasticizer, is endowed with flexibility and has other advantageous characteristics so that it can be used in various fields.
Abstract:
A method for producing biodegradable plastic from natural materials containing polysaccharides and oligosaccharides by treating the polysaccharide-containing or oligosaccharide-containing materials with a basic aqueous solution, subsequently treating the mixture with a modifying material to create an anionic product, and then contacting the anionic product with proteins to produce the biodegradable plastic material. The process provides relatively inexpensive methods for preparing biodegradable plastics that are useful for manufacturing various articles and also to provide an environmental solution that will reduce the amount of natural wastes that could be practically utilized for the benefit of mankind.
Abstract:
Modified poly (ethylene terephthalate) for injection molding can be obtained by adding polycarbonate resin (PC), acrylnitrile butadiene styrene reisn (ABS), styrene butadiene styrene resin (SBS) or styrene ethylene butylene styrene resin (SEBS) into reused or recycled PET bottles. Weight percentages of these components are described in the specification.
Abstract:
A biodegradable plastic article molded of a mixture comprising the following components: (A) a biodegradable plastic at 98 to 59% by weight, (B) a dry powder of a water-swelling fiber at 1 to 40% by weight, and (C) a fertilizer powder at 1 to 40% by weight (wherein the sum of (B) and (C) is from 2 to 41% by weight). This biodegradable plastic article can improve biodegradability of the biodegradable plastics and make it possible to regulate the rate of biodegradation thereof.
Abstract:
Biodegradable polyesteramides as defined in the specification obtained by reacting a mixture consisting essentially of(a1) from 95 to 99.9% by weight of a polyesteramide,(a2) from 0.1 to 5% by weight of a divinyl ether, and(a3) from 0 to 5 mol % of compound D as defined in the specification, and other biodegradable polymers and thermoplastic molding compositions, processes for the preparation thereof, the use thereof for producing biodegradable moldings, and adhesives, biodegradable moldings obtained from the polymers and molding compositions according to the invention.
Abstract:
The present invention relates to polymeric compositions that are biodegradable and that can be melt processed into various forms, including films, fibers, and nonwovens. The compositions include compatible or semicompatible blends of biodegradable polymers and have physical and thermomechanical integrity. Films formed from preferred polymeric compositions are suitable for use as backsheets in disposable absorbent articles. In a preferred embodiment, the polymeric composition includes a polyhydroxyalkanoate and at least one other biodegradable polymer selected from aliphatic polyester-based polyurethanes, a polylactide, polycaprolactone, or a mixture of two or more of these polymers. Where the second polymer is polycaprolactone, the composition preferably also includes a third polymer for enhancing the melt processability of the composition.
Abstract:
A method of preparing biodegradable moldable products and films includes the steps of preparing biodegradable, hydrophobic, modified starch, and forming a thermoplastic product, comprising the modified starch, and optionally a miscible and biodegradable plasticizer, and/or a compatible filler.