Thermoplastic composition containing polymeric anti-static salt, method of making, and use thereof

A composition, comprising:

• a polycarbonate, an aromatic polycarbonate, a (co)polyestercarbonate, an aromatic (co)polyestercarbonate, blends thereof, or a combination comprising at least one of the foregoing polymers;
• and about 0.1 to about 10 weight percent of a polymeric anti-static salt based on the total weight of the composition,
• wherein the polymeric anti-static salt comprises a polymeric anionic component derived from poly(meth)acrylic acid, polyacrylie acid, poly(ethy)acrylic acid, poly(maleic acid), poly(vinyl sulfonic acid), poly(meth)acrylate comprising sulfonic acid groups, or polyacrylate comprising sulfonic acid groups;
• and a phosphonium or ammonium cationic component;
• or wherein the polymeric anti-static salt is the reaction product of ionic monomer, wherein the ionic monomer comprises a reactive functionality and a salt moiety.

A method of making a transparent, anti-static article, comprising:

• blending a thermoplastic polymer and a polymeric anti-static salt to form a blend;
• and
• molding the blend to form an article,
• wherein the polymeric anti-static salt comprises a polymeric anionic component and a cationic component, wherein the polymeric anionic component is dericed from polyacylic acid, poly(alkyl)acrylic acid, poly(maleic acid), poly(vinyl sulfonic acid), polyacrylate, or poly(alkyl)acrylate.

A method of preparing a polymeric anti-static salt, comprising:

• polymerizing ionic monomers to form a polymeric anti-static salt, wherein the ionic monomer comprises reactive functionality and a salt moiety,
• wherein the reactive functionality is an epoxy group, an acrylate group, an (alkyl)acrylate group, an allylic group, an acrylamide group, an (alkyl)acrylamide group, a crotyl group or a combination comprising at least one of the foregoing groups;
• and
• wherein the salt moiety is a carboxylate salt or a sulfonate salt comprising a phosphonium or ammonium cationic component according to the structure:
• wherein Q is nitrogen or phosphrus;
• and R1, R2, R3, and R4 are each independently a C1–C20 alkyl, a (C6–C12 aryl)C1–C10 alkyl group, a (C1–C10 alkyl)C6–C12 aryl group, or a C6–C12 group, and
• wherein the polymeric anti-static salt comprises a polymeric anionic component and a cationic component.

A polymeric anti-static salt, comprising repeating untis according to the structure:

• wherein R5 is H or (C1–C6)alkyl;
• R6 is H or (C1–C6)alkyl;
• R7 is H or (C1–C6)alkyl;
• G1 is O or S;
• G2 is O, S or NR8, wherein R8 is H or (C1–C6)alkyl;
• L is one or more units of ethylene glycol, divalent (C1–C20) alkyl, divalent (C6–C12) aryl, divalent (C1–C20 alkoxy) C1–C20 alkyl, divalent (C1–C10 alkyl)C6–C12 aryl, or divalent (C6–C12 aryl)C1–C10 alkyl, divalent (C1–C10 alkoxy)C6–C12 aryl, or divalent (C6–C12 aryloxy)C1–C10 alkyl;
• J is a carboxylate or a sulfonate group;
• and M is an ammonium or phosphonium cationic component according to the structure:
• wherein Q is nitrogen or phosphorus;
• and R1, R2, R3, and R4 are each independently a C1–C20 alkyl, a (C6–C12 aryl)C1–C10 alkyl group, a (C1–C10 alkyl)C6–C12 aryl group, or a C6–C12 aryl group.