Abstract:
The present invention is a biodegradable resin composition comprising a sparingly hydrolyzing biodegradable resin (A) and an ester decomposition promoter (B), the ester decomposition promoter (B) being a copolymerized polyester that contains a segment (X) of a sparingly hydrolyzing polyester and a segment (Y) of an easily hydrolyzing polyester at a weight ratio of 10/90
Abstract:
Compositions comprising 1,3-propanediol and an extraction product are provided, and the 1,3-propanediol in the composition is biologically derived. Also provided are processes for extracting an extract from a source. These processes comprise providing 1,3-propanediol and mixing the 1,3-propanediol with the source. This serves to extract the extract from the source into the 1,3-propanediol. The processes also include separating the source from the ester and extract.
Abstract:
Disclosed is a biodegradable resin composition containing 100 parts by mass of a biodegradable polyester resin containing not less than 50% by mass of a polylactic acid, 0.1-10 parts by mass of a layered silicate, 0.1-5 parts by mass of a carbodiimide compound and 0.01-5 parts by mass of a phosphite organic compound. The biodegradable resin composition may contain a phosphite organic compound and at least one additive selected from the group consisting of hindered phenol compounds, benzotriazole compounds, triazine compounds and hindered amine compounds in an amount of 0.01-5 parts by mass in total, instead of containing 0.01-5 parts by mass of a phosphite organic compound.
Abstract:
At least one resin component which is selected from a biodegradable resin and a plant-based resin, and a flame retardancy-imparting component are kneaded to obtain a resin composition having flame retardancy. This resin composition makes it possible to apply the environment-friendly resin such as the biodegradable resin and the plant-based resin, for example, polylactic acid and polybutylene succinate to exterior bodies of home appliances. Particularly, in the case where polylactic acid is used with the acetylacetonatoiron as the flame-retardant component, a resin composition having excellent flame retardancy can be provided as a non-halogen material.
Abstract:
A composition which is advantageous not only in that it has biodegradability and flame retardancy as well as mechanical strength, but also in that the composition disposed of has few adverse effects on the natural environment. The composition is characterized in that it comprises at least one organic polymer compound having biodegradability, a flame retardant additive, and a hydrolysis inhibitor for the organic polymer compound having biodegradability.
Abstract:
A biodegradable plastic composition enabling to stably adjust biodegradation rate, improve hydrolysis resistance and heat resistance, and retain transparency, molded articles thereof and a method for controlling biodegradation rate of the biodegradable plastic. In more detail, a biodegradable plastic composition, characterized in that said composition is made by compounding 100 parts by weight of a biodegradable plastic (A), in particular, an aliphatic type polyester with 0.01 to 5 parts by weight of a carbodiimide compound (B) and 0.01 to 3 parts by weight of an antioxidant (C), in particular, a hindered phenol type antioxidant with a molecular weight of not less than 400 alone or mixed antioxidants of said hindered phenol type antioxidant and a phosphite type antioxidant, a molded article thereof and a method for controlling biodegradation rate of the biodegradable plastic.