Patent ID: 11921437
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C | IPC G

Claim 1:
2. The charging member of claim 1, wherein the quaternary ammonium salt is represented by Formula (2) below:, where Z1 to Z4 each independently represent a substituted or unsubstituted alkyl group of 1 to 16 carbon atoms excluding carbon atoms in a substituent, a substituted or unsubstituted aryl group of 5 to 12 carbon atoms excluding carbon atoms in a substituent, or a monovalent group represented by —R—(O)n—R′—OH, R and R′ each independently representing a linear or branched alkylene group of 1 to 12 carbon atoms, n being 0 or 1; and
where Q2− represents any one monovalent anion selected from a monovalent anion derived from an organic sulfuric acid, a monovalent anion derived from an organic sulfonic acid, perchlorate ion, a monovalent anion derived from an organic phosphoric acid, a monovalent anion derived from a fluorinated sulfonic acid, a monovalent anion derived from a fluorinated carboxylic acid, a monovalent anion derived from a fluorinated alkylfluoroboric acid, a monovalent anion derived from a fluorinated phosphoric acid, a monovalent anion derived from a fluorinated sulfonylimide, a halide anion, and a fluorinated sulfonylmethide anion.