Patent ID: 8546473

Claim:
A crystalline nucleating agent composition for polyolefin resin comprising, per 100 parts by mass of (C) 1,3:2,4-bis(3′,4′-dimethylbenzylidene)sorbitol, 3 to 20 parts by mass of (D) a phosphoric acid ester metal salt compound represented by the following general formula (3), and 0.5 to 10 parts by mass of (E) a compound which is a monovalent metal salt of fatty acid having 12 to 22 carbon atoms, optionally substituted by hydroxy group, and wherein (D)/(E), the mass ratio between (D) the phosphoric acid ester metal salt compound and the compound (E), is within a range from 90/10 to 50/50, wherein compound (D) is selected from the group consisting of i) a compound wherein R 1 to R 4 each independently represents a t-butyl group, R 5 is a hydrogen atom, n is 1, M is Li; ii) a compound wherein R 1 to R 4 each independently represents a methyl group, R 5 is a hydrogen atom, n is 2, M is Al(OH); and iii) a compound wherein R 1 to R 4 each independently represents a t-butyl group, R 5 is a hydrogen atom, n is 2, M is Al(OH).