Abstract: A disclosed fire retardant resin composition includes a thermoplastic resin and a fire retardant. The fire retardant is formed of phosphorated polysaccharide that is formed by attaching thiophosphoric acid ester or phosphoric acid ester to a side chain of natural polysaccharide.

Abstract: A disclosed fire retardant resin composition includes a thermoplastic resin and a fire retardant. The fire retardant is formed of phosphorated polysaccharide that is formed by attaching thiophosphoric acid ester or phosphoric acid ester to a side chain of natural polysaccharide.

Abstract: A thermoplastic cellulose derivative composition of the present invention contains, as a main component, a cellulose ester having an aliphatic polyester side chain having a repeat unit having 2 to 5 carbon atoms, wherein a rate of heating loss at 200° C. is 5 wt % or less, a melt viscosity at 200° C. and 1000 sec?1 is 50 to 300 Pa·sec, and a melt tension at the time of take-up at 200° C. and 100 m/min is 0.1 to 40 mN. The present invention can provide excellent fiber products by melt spinning of the composition.

Abstract: A thermoplastic cellulose derivative composition of the present invention contains, as a main component, a cellulose ester having an aliphatic polyester side chain having a repeat unit having 2 to 5 carbon atoms, wherein a rate of heating loss at 200° C. is 5 wt % or less, a melt viscosity at 200° C. and 1000 sec−1 is 50 to 300 Pa·sec, and a melt tension at the time of take-up at 200° C. and 100 m/min is 0.1 to 40 mN. The present invention can provide excellent fiber products by melt spinning of the composition.

Abstract: An aqueous composition comprising a polysaccharide or polysaccharide derivative (e.g. a hydroxyalkylcellulose), an electrolyte (e.g. a water-soluble inorganic salt), and an aqueous medium and having a clouding point is hermetically interposed between a pair of electrodes to produced a light shielding device. The clouding point of the aqueous composition can be controlled by adjusting the concentration of the polysaccharide or polysaccharide derivative and/or the species and concentration of the electrolyte. An electric field is applied to the electrodes to control the clouding point of the aqueous composition for selective switching from transparency to opacity or vice versa, thus causing the light shielding device to discharge its light-shielding or dimming function. The light-shielding or dimming effect is obtained regardless of changes in ambient temperature.

Abstract: A liquid crystal composition comprising a cholesteric liquid-crystal polymer, an electrolyte, and an aqueous medium is hermetically interposed between a pair of electrodes and an electric field is applied to the assemblage to control the display color. The liquid crystal composition can be provided in the form of a transparent solution of a cholesteric liquid-crystal polymer (e.g. a cellulose derivative such as a hydroxyalkylcellulose), an electrolyte (e.g. a water-soluble inorganic salt), and an aqueous medium (e.g. an aqueous solvent with a water content of 80 to 100 weight %). Using a cholesteric liquid-crystal polymer, a display device whose display color can be controlled with an electric field is provided.