Patent ID: 6521429
Filing Date: 2003-02-18
Classification: C08G,C12P,Y10T

Abstract:
A polyhydroxyalkanoate comprising one or more of monomer units represented by Formula (1), where R is at least one selected from the group represented by any one of Formulas (2), (3) and (4); in Formula (2), R1 is selected from the group consisting of hydrogen atom (H), halogen atom, â€”CN, â€”NO2, â€”CF3, â€”C2F5and â€”C3F7, and q is an integer of 1 to 8; in Formula (3), R2 is selected from the group consisting of hydrogen atom (H), halogen atom, â€”CN, â€”NO2, â€”CF3, â€”C2F5and â€”C3F7, and r is an integer of 1 to 8; in Formula (4), R3 is selected from the group consisting of hydrogen atom (H), halogen atom, â€”CN, â€”NO2, â€”CF3, â€”C2F5and â€”C3F7, and s is an integer of 1 to 8; provided that following R is not selected: when one kind of R is selected: R being R1=H and q=2, or R1=H and q=3 in Formula (2), R being R2=halogen and r=2, R2=â€”CN and r=3, R2=â€”NO2 and r=3, or R2=H and r=1 or 2 in Formula (3), or R being R3=H and s=1, 2 or 3 in Formula (4); when two kinds of R are selected: a combination of R being R1=H and q=3 and 5 respectively in Formula (2), a combination of R being R2=H and r=2 and 4 respectively, a combination of R being R2=H and r=2 and 6 respectively, and a combination of R being R2=halogen and r=2 and 4 respectively in Formula (3); when three kinds of R are selected: a combination of R being R1=H and q=3, 5 and 7 respectively in Formula (2), a combination of R being R2=H and r=1, 3 and 5 respectively, and a combination of R being R2=H and r=2, 4 and 6 respectively in Formula (3).