The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2020
Filed:
Oct. 22, 2018
Xerox Corporation, Norwalk, CT (US);
Varun Sambhy, Pittsford, NY (US);
John S. Facci, Webster, NY (US);
Eliud Robles-Flores, Rochester, NY (US);
David S. Derleth, Webster, NY (US);
David C. Craig, Pittsford, NY (US);
XEROX CORPORATION, Norwalk, CT (US);
Abstract
A support material toner particle for use in xerographic additive manufacturing includes aPVA polymer blend including apolyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tof the PVA polymerblendto be within about 1° C. to about 20° C. of a desired build material toner T. A xerographic toner system includes a build toner material and a support toner material, the support toner material includesa PVA polymer blend includinga polyvinyl alcohol (PVA) polymer and blend-additives including a chitosan and a polyvinylpyrrolidone (PVP), the amount of blend-additives is selected to adjust the Tof the PVA polymerblendto be within about 1° C. to about 20° C. of the build material toner T. A method of making a support toner material includes blending polyvinyl alcohol with blend additives including a chitosan and polyvinylpyrrolidone and forming support toner particles after the blending step.