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Toner containing a dimer of diarylguanidine type compound for developing electrostatic image

  • US 5,214,208 A
  • Filed: 09/24/1991
  • Issued: 05/25/1993
  • Est. Priority Date: 03/13/1989
  • Status: Expired due to Fees
First Claim
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1. A dimer of a diarylguanidine type compound represented by the formula (II):

  • ##STR19## wherein R1, R2, and R3 are respectively hydrogen, an alkyl group of 1 to 4 carbons, an alkoxy group of 1 to 5 carbons, or a phenyl group, which may be the same or different from each other, and adjacent groups may be linked together to form a fused phenyl ring, and Y is ##STR20## or --CH═

    CH--CH2 --.

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