POLY(3-HYDROXYALKANOATE) COMPOSITION AND MOLDED OBJECT THEREOF

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The present invention has for its object to obtain a composition and a molded product thereof excellent in processability, strength, impact resistance, heat resistance and water resistance and, when discarded, are biodegradable under the action of microorganisms and the like in an aerobic or anaerobic environment and, further, a plant origin composition and a molded product thereof, which can positively fix carbon dioxide on the earth. Such characteristics can hardly be attained with the above-mentioned chemically synthesized aliphatic polyesters or natural polymers such as starch. The present invention relates to a composition which comprises kenaf fibers and a poly(3-hydroxyalkanoate) produced by microorganisms and comprising a repeating unit represented by the formula (1) :         [-O-CHR-CH2-CO-] in the formula, R represents an alkyl group represented by CnH2n+1 with n representing an integer of 1 to 15, and a molded product thereof.