Patent ID: 6887944

Claim:
A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined by 13 C-NMR analysis, and weight-average molecular weight (Mw) of 5,000 to 400,000, and grafted with units represented by the general formula (1): General formula (1) (wherein, R 1 is H or an alkyl group of 1 to 10 carbon atoms; R 2 is OR 4 , or a halogen selected from the group consisting of Cl, Br, F and I, or N(R 1 ) 2 or R 5 â€”N(R 1 ) 2 group; R 3 is H or â€”COR 2 group; R 4 is H or an alkyl group of 1 to 10 carbon atoms, which can have a halogen; aromatic group, which can have an alkyl substituent; â€”(CH 2 ) a â€”Oâ€”P(O)(OR 1 ) 2 or â€”(CH 2 ) a â€”Oâ€”P(O)(O âˆ’ )(Oâ€”(CH 2 ) b â€”N + R 1 3 ) (â€œaâ€ and â€œbâ€ are each an integer of 1 to 5); alkali metal M selected from the group consisting of Li, Na and K; alicyclic hydrocarbon of 5 to 10 carbon atoms; glycidyl group; R 5 â€”COCR 1 â•CH 2 ; R 5 OR 1 ; R 5 Si(OR 1 ) 3 or R 5 â€”NCO; R 5 is an alkylene group of 1 to 10 carbon atoms or â€”[(CH 2 )q-O-]r-(â€œqâ€ and â€œrâ€ are each an integer of 1 to 5); and â€œnâ€ is 1 to 500, wherein totaled number is 2 to 500, when there are 2 or more units represented by the general formula (1) in one polypropylene molecule).