Developer compositions containing telomeric quaternary salts
AssigneeXerox Corporation
InventorRoger N. Ciccarelli
Life of this patent
Estimating the term…
Abstract
This invention is directed to a positively charged dry developer composition comprised of resin particles, pigment particles, carrier particles, and a telomeric quaternary salt charge enhancing additive of the formula: [A.sub.x B.sub.y ].sub.Z wherein A represents a segment which is soluble/dispersible in the resin particles, B represents a quaternary salt segment, x and y are numbers representing mole fractions of A and B, the sum of x and y being equal to 1, and Z represents the degree of polymerization, wherein there results a telomeric quaternary salt having a number average molecular weight of from about 1,000 to about 10,000, and to a method of developing electrostatic latent images utilizing such compositions.
Claims15
A positively charged dry developer composition comprised of resin particles, pigment particles, carrier particles, and a telomeric quaternary salt charge enhancing additive of the formula:
- [A.sub.x B.sub.y ].sub.Z
- wherein A represents a segment which is soluble/dispersible in the resin particles, B represents a quaternary salt prepared from amine containing vinyl monomers, amine acrylates or amine methacrylates segment, x and y are numbers representing mole fractions of A and B, the sum of x and y being equal to 1, and Z represents the degree of polymerization, wherein there results a telomeric quaternary salt having a number average molecular weight of from about 1,000 to about 10,000.
Dependencies are inferred from the claim text.