Method for reducing electrostatic charging on shaped articles of polyvinyl chloride resins

Claim 1

A method of reducing static electricity on the surface of articles made of polyvinyl chloride resin comprising: (A) blending a polyvinyl chloride resin with a surface active agent chosen from the group consisting of, primary amine salts, secondary amine salts, tertiary amine salts, quarternary amine salts, pyridinium salts, which are cationic surface active agents, sulfonated oils, metal soaps, sulfonated ester oils, sulfonated amide oils, sulfuric oil esters of olefins, sulfuric acid esters of aliphatic alcohols, ester salts of alkylsulfuric acids, aliphatic acid, ethylsulfonates, alkylsulfonates, alkylnaphthalene sulfonates, alkylbenzene sulfonates, reaction products of naphthalenesulfonic acid and formalin, sulfonates of succinic acid esters and salts of phosphoric acid esters, which are anionic surface active agents, and aliphatic carboxylic acid esters of polyvalent alcohols, addition products of ethylene oxides with aliphatic alcohols, addition products of ethylene oxide with aliphatic carboxylic acids, addition products of ethylene oxide with aliphatic amines and aliphatic amides, addition products of ethylene oxide with alkyl phenols, addition products of ethylene oxide with alkyl naphthols, addition products of ethylene oxide with partial carboxylic acid esters of polyvalent alcohols, polyethylene glycols and amphoteric surface active agents of the carboxylic acid type, betaine derivatives, sulfuric acid ester salts, sulfuric acid esters of hydroxyethylimidazoline, sulfonic acid type surface active agents, taurine condensation type succinic acid esters and imidazolinesulfonic acids which are non-ionic surface active agents; with 0.03 to 1 parts by weight of the surface active agent being blended with each 100 parts by weight of the polyvinyl chloride; (B) fabricating the polyvinyl chloride resin and surface active agent blend into a shaped article; and (C) subjecting the shaped article to treatment with low-temperature plasma of a gas chosen from a group consisting of helium, neon, argon, nitrogen, nitrous oxide, nitrogen dioxide, oxygen, air, carbon monoxide, carbon dioxide, hydrogen, halogens, and halogen compounds, the pressure of the gas forming the low-temperature plasma being from 0.01 to 1.0 Torr and the plasma being generated by applying electrical power to the gas.

Claim 2

A method of reducing static electricity on the surface of articles made of polyvinyl chloride resin comprising: (A) blending a polyvinyl chloride resin with a surface active agent chosen from the group consisting of, primary amine salts, secondary amine salts, tertiary amine salts, quarternary amine salts, pyridinium salts, which are cationic surface active agents, sulfonated oils, metal soaps, sulfonated ester oils, sulfonated amide oils, sulfuric oil esters of olefins, sulfuric acid esters of aliphatic alcohols, ester salts of alkylsulfuric acids, aliphatic acid, ethylsulfonates, alkylsulfonates, alkylnaphthalene sulfonates, alkylbenzene sulfonates, reaction products of naphthalenesulfonic acid and formalin, sulfonates of succinic acid esters and salts of phosphoric acid esters, which are anionic surface active agents, and aliphatic carboxylic acid esters of polyvalent alcohols, addition products of ethylene oxides with aliphatic alcohols, addition products of ethylene oxide with aliphatic carboxylic acids, addition products of ethylene oxide with aliphatic amines and aliphatic amides, addition products of ethylene oxide with alkyl phenols, addition products of ethylene oxide with alkyl naphthols, addition products of ethylene oxide with partial carboxylic acid esters of polyvalent alcohols, polyethylene glycols and amphoteric surface active agents of the carboxylic acid type, betaine derivatives, sulfuric acid ester salts, sulfuric acid esters of hydroxyethylimidazoline, sulfonic acid type surface active agents, taurine condensation type succinic acid esters and imidazolinesulfonic acids which are non-ionic surface active agents; with 0.03 to 1 parts by weight of the surface active agent being blended with each 100 parts by weight of the polyvinyl chloride; (B) fabricating the polyvinyl chloride resin and surface active agent blend into a shaped article; and (C) subjecting the shaped article to treatment with low-temperature plasma of a gas chosen from a group consisting of helium, neon, argon, nitrogen, nitrous oxide, nitrogen dioxide, oxygen, air, carbon monoxide, carbon dioxide, hydrogen, halogens, and halogen compounds, the pressure of the gas forming the low-temperature plasma being from 0.01 to 1.0 Torr and the plasma being generated by applying electrical power to the gas.