Patent ID: 8686074

Claim:
A nucleating agent masterbatch for polyolefin resin, comprising, based on 100 parts by mass of a fully hydrogenated petroleum resin (A) having a softening point of not lower than 100Â° C., 10 to 100 parts by mass of an aromatic phosphate metal salt (B) represented by the following general formula (1) added thereto: wherein R 1 represents a C 4 -C 8 alkyl group; R 2 represents a hydrogen atom or a C 1 -C 8 alkyl group; R 3 represents a C 1 -C 4 alkylidene group; M 1 represents an alkaline metal atom, an alkaline earth metal atom or an aluminum atom; in cases where M 1 is an alkaline metal atom, p is 1 and q is 0, in cases where M 1 is an alkaline earth metal atom, p is 2 and q is 0, and in cases where M 1 is an aluminum atom, p is 1 or 2 and q is 3-p.