Patents by Inventor Amy A. Grillo
Amy A. Grillo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9366980Abstract: A process for making colored polyester latex by phase inversion emulsification is described.Type: GrantFiled: November 13, 2014Date of Patent: June 14, 2016Assignee: Xerox CorporationInventors: Shigeng Li, Peter V Nguyen, Judith M Vandewinckel, Amy A Grillo, Chieh-Min Cheng
-
Patent number: 9354531Abstract: A process for making a latex emulsion where distillation occurs at an elevated temperature is used to make resin particles with a conditioned surface which can be used to make magenta toner with increased efficiency.Type: GrantFiled: July 1, 2014Date of Patent: May 31, 2016Assignee: XEROX CORPORATIONInventors: Shigeng Li, Christopher M Wolfe, Randy P Tin, Eric Godshall, Shigang Qiu, Peter V Nguyen, Jay L Schneider, Linda S Schriever, Steven M Malachowski, Amy A Grillo, Chieh-Min Cheng
-
Publication number: 20160139520Abstract: A process for making colored polyester latex by phase inversion emulsification is described.Type: ApplicationFiled: November 13, 2014Publication date: May 19, 2016Inventors: Shigeng Li, Peter V. Nguyen, Judith M. Vandewinckel, Amy A. Grillo, Chieh-Min Cheng
-
Patent number: 9267032Abstract: A process for making a crystalline latex emulsion suitable for use in toner using phase invention emulsification (PIE) where solvent is reused is presented.Type: GrantFiled: November 6, 2014Date of Patent: February 23, 2016Assignee: Xerox CorporationInventors: Shigeng Li, Yanjia Zuo, Shigang Qiu, Peter V Nguyen, Amy A Grillo, Steven M Malachowski, Chieh-Min Cheng
-
Publication number: 20160004175Abstract: A process for making a latex emulsion where distillation occurs at an elevated temperature is used to make resin particles with a conditioned surface which can be used to make magenta toner with increased efficiency.Type: ApplicationFiled: July 1, 2014Publication date: January 7, 2016Inventors: Shigeng Li, Christopher M. Wolfe, Randy P Tin, Eric Godshall, Shigang Qiu, Peter V Nguyen, Jay L Schneider, Linda S Schriever, Steven M Malachowski, Amy A Grillo, Chieh-Min Cheng
-
Patent number: 9223238Abstract: A process is disclosed for making a resin emulsion suitable for use in forming toner particles including using a wiped film evaporator for removing residual solvents.Type: GrantFiled: June 18, 2013Date of Patent: December 29, 2015Assignee: Xerox CorporationInventors: Amy A Grillo, Shigang Qiu, Peter V Nguyen, Chieh-Min Cheng
-
Patent number: 9201321Abstract: A phase inversion emulsification process includes dissolving a polyester resin in a mixture comprising (1) an organic solvent, (2) a first portion of a total amount of neutralizing agent, and (3) a first portion of water, neutralizing the dissolved polyester resin with a second portion of neutralizing agent, the second portion of neutralizing agent including the remaining amount of the total amount neutralizing agent, forming an emulsion by adding a second portion of water after the neutralizing step, and removing a portion of the organic solvent from the emulsion to provide a latex.Type: GrantFiled: June 17, 2013Date of Patent: December 1, 2015Assignee: XEROX CORPORATIONInventors: Shigang Steven Qiu, Chieh-Min Cheng, Amy Grillo, Yulin Wang, Rashid Mahmood, David Kurceba
-
Publication number: 20150168858Abstract: A process for making a latex emulsion suitable for use in a toner composition which applies the model of Brinkman to predict phase inversion point (PIP) during phase invention emulsification (PIE), including using this model to calculate the amount of water needed to complete the phase inversion for solvent reuse formulation.Type: ApplicationFiled: December 16, 2013Publication date: June 18, 2015Applicant: Xerox CorporationInventors: Shigeng Li, Shigang Qiu, Peter V. Nguyen, Linda S. Schriever, Amy A. Grillo, Chieh-Min Cheng
-
Publication number: 20150141572Abstract: A process includes dissolving a first polymer in an aprotic solvent, absent a protic organic solvent, to form a polymer solution, neutralizing acidic residues present in the first polymer by adding a neutralizing agent to the polymer solution, contacting the polymer solution with water to form a latex, removing the aprotic solvent from the latex, capturing the removed aprotic solvent as recycled solvent, and dissolving a second polymer with the recycled solvent.Type: ApplicationFiled: November 20, 2013Publication date: May 21, 2015Applicant: Xerox CorporationInventors: Shigeng Li, Shigang S. Qiu, Peter Nguyen, Amy Grillo, Chieh-Min Cheng
-
Patent number: 8968978Abstract: A method for reclaiming an out-of-spec emulsion material includes recovering the out-of-spec emulsion material from a scrap manufacturing batch; distilling the out-of-spec emulsion material to raise a solids content of the out-of-spec emulsion material to about 45 wt % or more based on a total weight of the emulsion material; dissolving the distilled emulsion material in a solvent to form a first mixture; adding a base to the first mixture to neutralize acid groups present in the distilled emulsion material, forming a second mixture; emulsifying the second mixture by adding water to the second mixture; and forming particles having an average particle diameter (D50v) within a target range, wherein the out-of-spec emulsion material has an average particle diameter falling outside of the target range.Type: GrantFiled: June 13, 2013Date of Patent: March 3, 2015Assignee: Xerox CorporationInventors: Shigang Steven Qiu, Amy Grillo, Chieh-Min Cheng, Tie Hwee Ng
-
Publication number: 20140370438Abstract: A phase inversion emulsification process includes dissolving a polyester resin in a mixture comprising (1) an organic solvent, (2) a first portion of a total amount of neutralizing agent, and (3) a first portion of water, neutralizing the dissolved polyester resin with a second portion of neutralizing agent, the second portion of neutralizing agent including the remaining amount of the total amount neutralizing agent, forming an emulsion by adding a second portion of water after the neutralizing step, and removing a portion of the organic solvent from the emulsion to provide a latex.Type: ApplicationFiled: June 17, 2013Publication date: December 18, 2014Inventors: Shigang Steven Qiu, Chieh-Min Cheng, Amy Grillo, Yulin Wang, Rashid Mahmood, David Kurceba
-
Publication number: 20140370434Abstract: A method for reclaiming an out-of-spec emulsion material includes recovering the out-of-spec emulsion material from a scrap manufacturing batch; distilling the out-of-spec emulsion material to raise a solids content of the out-of-spec emulsion material to about 45 wt % or more based on a total weight of the emulsion material; dissolving the distilled emulsion material in a solvent to form a first mixture; adding a base to the first mixture to neutralize acid groups present in the distilled emulsion material, forming a second mixture; emulsifying the second mixture by adding water to the second mixture; and forming particles having an average particle diameter (D50v) within a target range, wherein the out-of-spec emulsion material has an average particle diameter falling outside of the target range.Type: ApplicationFiled: June 13, 2013Publication date: December 18, 2014Inventors: Shigang Steven QIU, Amy GRILLO, Chieh-Min CHENG, Tie Hwee NG
-
Publication number: 20140370437Abstract: A process is disclosed for making a resin emulsion suitable for use in forming toner particles including using a wiped film evaporator for removing residual solvents.Type: ApplicationFiled: June 18, 2013Publication date: December 18, 2014Inventors: Amy A. Grillo, Shigang Qiu, Peter V. Nguyen, Chieh-Min Cheng
-
Patent number: 7736831Abstract: A process for preparing a toner includes mixing a polymeric resin emulsion, a colorant dispersion, and a wax to form a mixture; optionally adding a coagulant to the mixture; heating the mixture at a temperature below a glass transition temperature of the polymeric resin to aggregate the polymeric resin, colorant, and wax, to form aggregated particles; adding a coalescent agent to the aggregated particles; heating the aggregated particles and coalescent agent at a temperature above the glass transition temperature of the polymeric resin, to coalesce the aggregated particles to form toner particles, optionally cooling the mixture, and isolating the tone particles.Type: GrantFiled: September 8, 2006Date of Patent: June 15, 2010Assignee: Xerox CorporationInventors: Zhen Lai, Richard Fong, Yuhua Tong, Chieh-Min Cheng, Amy A. Grillo, Paul F. Smith, Paul J. Gerroir, Beng S. Ong
-
Patent number: 7476480Abstract: Herein is disclosed a process for producing emulsion aggregation toner including (i) adding a base to an emulsion aggregation toner to increase the pH of the toner to from about 7 to about 12; (ii) sieving and filtering the toner; (iii) washing the toner with an enzyme selected from the group consisting of carboxylic ester hydrolase and sulfuric ester hydrolase; (iv) filtering the toner; (v) washing the toner with reverse osmosis or deionized water; and (vi) adding an acid to reduce the pH of the toner to from about 3 to about 8.Type: GrantFiled: January 9, 2007Date of Patent: January 13, 2009Assignee: Xerox CorporationInventors: Steven M. Malachowski, Amy A. Grillo, Eugene F. Young
-
Publication number: 20080063965Abstract: A process for preparing a toner includes mixing a polymeric resin emulsion, a colorant dispersion, and a wax to form a mixture; optionally adding a coagulant to the mixture; heating the mixture at a temperature below a glass transition temperature of the polymeric resing to aggregate the polymeric resin, colorant, and wax, to form aggregated particles; and adding a coalescent agent to the aggregated particles; heating the aggregated particles and coalescent agent at a temperature above the glass transition temperature of the polymeric resin, to coalesce the aggregated particles to form toner particles, optionally cooling the mixture, and isolating the tone particles.Type: ApplicationFiled: September 8, 2006Publication date: March 13, 2008Applicant: Xerox CorporationInventors: Zhen Lai, Richard Fong, Yuhua Tong, Chieh-Min Cheng, Amy A. Grillo, Paul F. Smith, Paul J. Gerroir, Beng S. Ong
-
Patent number: 7291437Abstract: A toner process comprising mixing a colorant dispersion with a latex, a wax dispersion, and a coagulant, and wherein the polymer latex selected possesses a weight average molecular weight of from about 20,000 to about 55,000, a number average molecular weight of from about 5,000 to about 18,000, an onset glass transition temperature Tg of from about 40° C. to about 80° C., and a particle size distribution PSD of from about 50 to about 500 nanometers.Type: GrantFiled: April 14, 2003Date of Patent: November 6, 2007Assignee: Xerox CorporationInventors: Amy A. Grillo, Peter V. Nguyen, Donald Riley, Allan K. Chen, Emily L. Moore, Tie Hwee Ng, Chieh-Min Cheng
-
Publication number: 20070134579Abstract: Herein is disclosed a process for producing emulsion aggregation toner including (i) adding a base to an emulsion aggregation toner to increase the pH of the toner to from about 7 to about 12; (ii) sieving and filtering the toner; (iii) washing the toner with an enzyme selected from the group consisting of carboxylic ester hydrolase and sulfuric ester hydrolase; (iv) filtering the toner; (v) washing the toner with reverse osmosis or deionized water; and (vi) adding an acid to reduce the pH of the toner to from about 3 to about 8.Type: ApplicationFiled: January 9, 2007Publication date: June 14, 2007Inventors: Steven Malachowski, Amy Grillo, Eugene Young