Patent ID: 7723418
Filing Date: 2010-05-25
Classification: C08L

Abstract:
1. An antistatic resin composition, comprising a thermoplastic resin (A), an antistatic agent (B) having a hydrophilic chain and at least one additive (C) selected from the group consisting of alkali metal salts of organic acids, alkaline earth metal salts of organic acid, anionic surfactants, cationic surfactants and amphoteric surfactants, wherein a difference between refractive indexes of the thermoplastic resin (A) and the antistatic agent (B) is not more than 0.02, and the antistatic agent (B) comprises at least one material selected from the group consisting of (B1) and (B2), wherein (B1) is a polyetheresteramide derived from a polyamide (b11) having a number average molecular weight of 200-5000 and an alkyleneoxide adduct (b12) of bisphenol that has a number average molecular weight of 300-5000; (B2) is a block polymer which has a structure such that blocks of a polyolefin (b21) and blocks of a hydrophilic polymer (b22) having a volume resistivity of 10 (B1) and (B2) are prepared in presence of the at least one additive (C).