Xerox Corporation

National Research Council of Canada

Nrc of Canada

Andriy Kovalenko

Sergey Gusarov

Qingbin Li

Valerie M Farrugia

Richard P N Veregin

Karen Ann Moffat

Michael Steven Hawkins

Jordan H Wosnick

Richard P Veregin

Alexander Kobryn

Dragan Nikolic

Daryl Walter Vanbesien

Darren Andrew Makeiff

The instant disclosure describes methacrylate coated carrier resins with hydrophobic substituents for charge control and improved RH sensitivity.

Negative charge carrier resins with RH sensitivity

The present disclosure describes a polyester that contains plural pendant adjacent carboxylic acid or acid salt side groups for use in making a toner for use in imaging devices.

Carboxylic acid or acid salt functionalized polyester polymers

The disclosure describes dry acrylate resin particles, optionally, with a C/O of at least about 4, comprising a heterocycle comprising sulfur, exhibiting high charge and improved RH sensitivity.

Carrier resins with improved relative humidity sensitivity

The instant disclosure describes methacrylate coated carrier resins with aromatic substituent groups with optionally carbon atoms replaced by heteroatoms such as S, N, and O for charge control and improved RH sensitivity.

Carrier resins with improved RH sensitivity

The disclosure generally describes carrier resins, and in particular, resins used for carrier coatings which include at least one ester functional group and at least one cyclic aliphatic group containing at least one nitrogen atom in the cyclic ring structure. Carriers having such resins in the coating exhibit high charge and excellent relative humidity (RH) sensitivity of charge to changing environmental conditions.

The disclosure describes acrylate carrier resins, optionally, with a C/O of at least about 4, comprising a heterocycle comprising sulfur, exhibiting high charge and improved RH sensitivity, carrier compositions comprising the acrylate-coated carriers and developers comprising a toner and the acrylate-coated carrier.

The disclosure relates generally to toner additives, and in particular, toner additives that provide desired higher toner charge and low relative humidity (RH) sensitivity. The toner additives comprise titania nanotubes or titania nanosheets in combination with or in place of the commonly used anatase or rutile crystalline titania.

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Edmonton, Canada

Andriy Kovalenko