ANTISTATIC AGENT

Provided is an antistatic agent (Z) containing:a block polymer (A) having a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as structure units; anda sulfonate (S),the sulfonate (S) being a salt of an alkylbenzenesulfonic acid anion which has a C6-C18 alkyl group,the sulfo...

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Bibliographische Detailangaben
Hauptverfasser: SUGIMOTO, Yuko, FUJITA, Shinichi
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Provided is an antistatic agent (Z) containing:a block polymer (A) having a block of a hydrophobic polymer (a) and a block of a hydrophilic polymer (b) as structure units; anda sulfonate (S),the sulfonate (S) being a salt of an alkylbenzenesulfonic acid anion which has a C6-C18 alkyl group,the sulfonate (S) including at least two alkylbenzenesulfonates different in the number of carbon atoms of the alkyl group in the anion,the sulfonate (S) satisfying the following formula: 0.40≤Wn/Wn−1+Wn+Wn+1≤0.90 wherein n is the number of carbon atoms of the alkyl group in the anion of an alkylbenzenesulfonate accounting for the highest proportion by weight in the sulfonate (S); W(n) is a weight of said alkylbenzenesulfonate; and W(n - 1) and W(n + 1) are respectively a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n - 1) carbon atoms and a weight of an alkylbenzenesulfonate containing an anion having an alkyl group with (n + 1) carbon atoms.