Patents by Inventor M. Cristina B. Dejesus
M. Cristina B. Dejesus 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).
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Patent number: 8702900Abstract: The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles.Type: GrantFiled: February 20, 2012Date of Patent: April 22, 2014Assignee: Henkel US IP LCCInventors: Yuhong Hu, Maria Xenidou, Alethea Pollock-Downer, Matthew Sharak, M. Cristina B. DeJesus
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Publication number: 20130029819Abstract: The present invention is a double-sleeved roller for use in an electrostatographic machine. The roller includes a cylindrical rigid core member, a removable inner sleeve member that surrounds and intimately contacts the rigid core member; and a removable outer sleeve member including a substrate comprising a polymeric material support layer. The inner sleeve member comprises a ceramer outer surface, and the outer sleeve member surrounds and intimately contacts the outer ceramer surface of the inner sleeve member and is removable. The outer sleeve may include a polyethylene terephthalate inner surface that contacts the outer ceramer surface of the inner sleeve member. The inner sleeve can comprise a rigid substrate such as nickel having an outer ceramer surface.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Inventors: Andrew Peter Kittleson, M. Cristina B. Dejesus, Thomas Nathaniel Tombs, Charles Eugene Hewitt
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Publication number: 20130029818Abstract: The present invention is a sleeved roller for use in an electrostatographic machine. The roller includes a cylindrical rigid core member having an outer ceramer surface. A removable sleeve member includes a substrate comprising a polymeric material support layer, wherein the sleeve member surrounds and intimately contacts the outer ceramer surface. The invention provides a low cost sleeved roller, while providing a high friction interference fit to reduce slipping of the sleeve member during operation and thereby providing improved registration performance.Type: ApplicationFiled: July 29, 2011Publication date: January 31, 2013Inventors: Andrew Peter Kittleson, M. Cristina B. Dejesus, Thomas Nathaniel Tombs, Charles Eugene Hewitt
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Publication number: 20120149827Abstract: The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles.Type: ApplicationFiled: February 20, 2012Publication date: June 14, 2012Inventors: Yuhong Hu, Maria Xenidou, Alethea Pollock-Downer, Matthew Sharak, M. Cristina B. DeJesus
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Patent number: 8170441Abstract: A cleaning blade member including a polymer substrate and a fluorinated polyurethane ceramer coating surface layer. The polymer substrate may comprise polyurethane. The fluorinated polyurethane ceramer coating may comprise a fluorinated polyurethane silicate hybrid organic-inorganic network formed as a reaction product of a fluorinated polyurethane having terminal reactive alkoxysilane groups with a tetraalkoxysilane compound. The fluorinated polyurethane ceramer coating may be coated on the polymer substrate of the cleaning blade without any primer layer therebetween. Also described is an electrostatographic apparatus comprising a toner-contacting member and such a fluorinated ceramer coated cleaning blade for the toner-contacting member. The toner-contacting member may comprise an endless transport web. The fluorinated ceramer enhances the ability of particles to be released from the surface therefore reducing contamination generated due to particles attached to the surface.Type: GrantFiled: February 26, 2010Date of Patent: May 1, 2012Assignee: Eastman Kodak CompanyInventors: Wayne T. Ferrar, Donald S. Rimai, Edward T. Miskinis, M. Cristina B. Dejesus
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Publication number: 20110211883Abstract: A cleaning blade member including a polymer substrate and a fluorinated polyurethane ceramer coating surface layer. The polymer substrate may comprise polyurethane. The fluorinated polyurethane ceramer coating may comprise a fluorinated polyurethane silicate hybrid organic-inorganic network formed as a reaction product of a fluorinated polyurethane having terminal reactive alkoxysilane groups with a tetraalkoxysilane compound. The fluorinated polyurethane ceramer coating may be coated on the polymer substrate of the cleaning blade without any primer layer therebetween. Also described is an electrostatographic apparatus comprising a toner-contacting member and such a fluorinated ceramer coated cleaning blade for the toner-contacting member. The toner-contacting member may comprise an endless transport web. The fluorinated ceramer enhances the ability of particles to be released from the surface therefore reducing contamination generated due to particles attached to the surface.Type: ApplicationFiled: February 26, 2010Publication date: September 1, 2011Inventors: Wayne T. Ferrar, Donald S. Rimai, Edward T. Miskinis, M. Cristina B. Dejesus
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Patent number: 7976658Abstract: The present invention is a process for making an intermediate transfer member. The process includes forming an endless belt by seaming two ends of a substrate material to form a seam. A smoothing layer is applied on top of the endless belt using a rotary cast process wherein said intermediate transfer member has a continuous seamless top surface. In a preferred embodiment the endless belt is formed by adhering at least two layers of a substrate to form a belt having an inner and outer seam.Type: GrantFiled: August 14, 2006Date of Patent: July 12, 2011Assignee: Eastman Kodak CompanyInventors: Mark C. Zaretsky, Craig M. Cody, Thomas N. Tombs, Andrew P. Kittleson, M. Cristina B. Dejesus
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Patent number: 7955527Abstract: The invention provides a conductivity control agent comprised of a polymeric material containing diphosphonium bis(sulfoarylcarbonyloxy) glycol salts as conductivity control agent. The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in the polymeric or polyurethane elastomers extends the electrical life of the polymeric biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polymer on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the elastomers.Type: GrantFiled: March 20, 2009Date of Patent: June 7, 2011Assignee: Eastman Kodak CompanyInventors: M. Cristina B. DeJesus, Charles E. Hewitt, John C. Wilson
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Patent number: 7666329Abstract: The invention provides conductivity control agent comprised of a polymeric material containing hydroxyalkylphosphonium (2-hydoxyethoxycarbonyl) arylsulfonate salts. The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in the polymeric or polyurethane elastomers extends the electrical life of the polyurethane biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polyurethane or polymer on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the polymeric or polyurethane elastomers.Type: GrantFiled: September 30, 2005Date of Patent: February 23, 2010Assignee: Eastman Kodak CompanyInventors: M. Cristina B. Dejesus, John C. Wilson, Charles E. Hewitt
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Patent number: 7641819Abstract: The present invention provides conductivity control agents derived from the trans esterification of dialkyl phosphonium 5-sulfoisophthalate salts with poly(alkylene glycols). The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in the polymeric or polyurethane elastomers extends the electrical life of the polymer biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polymers or polyurethane on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the polymer elastomers.Type: GrantFiled: September 30, 2005Date of Patent: January 5, 2010Assignee: Eastman Kodak CompanyInventors: M. Cristina B. Dejesus, John C. Wilson, George R. Walgrove, III, Charles E. Hewitt
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Publication number: 20090179179Abstract: The invention provides a conductivity control agent comprised of a polymeric material containing diphosphonium bis(sulfoarylcarbonyloxy) glycol salts as conductivity control agent. The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in the polymeric or polyurethane elastomers extends the electrical life of the polymeric biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polymer on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the elastomers.Type: ApplicationFiled: March 20, 2009Publication date: July 16, 2009Inventors: M. Cristina B. DeJesus, Charles E. Hewitt, John C. Wilson
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Patent number: 7540981Abstract: The present invention provides a polymeric material containing conductivity control agents derived from a hydroxyalkylphosphonium sulfonate salt. The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in polymeric or polyurethane elastomers extends the electrical life of the polymer biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polyurethane or polymer on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the elastomers.Type: GrantFiled: September 30, 2005Date of Patent: June 2, 2009Assignee: Eastman Kodak CompanyInventors: M. Cristina B. Dejesus, John C. Wilson, Charles E. Hewitt
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Patent number: 7534376Abstract: The invention provides a conductivity control agent comprised of a polymeric material containing diphosphonium bis(sulfoarylcarbonyloxy) glycol salts as conductivity control agent. The conductivity control agents can be used with semi-conductive rolls, belts and other biasable members. The inclusion of the conductivity control agent in the polymeric or polyurethane elastomers extends the electrical life of the polymeric biasable member in low humidity environments. Additionally, the resistivity of the elastomeric polymer on the biasable member is controlled to a desirable value by adjusting the conductivity control agent level in the elastomers.Type: GrantFiled: September 30, 2005Date of Patent: May 19, 2009Assignee: Eastman Kodak CompanyInventors: M. Cristina B. DeJesus, Charles E. Hewitt, John C. Wilson
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Publication number: 20090116882Abstract: The present invention is a method of forming a toner image on a receiving sheet. The method includes forming an electrostatic image on a primary image member and toning the image with a dry toner to form a toner image. The toner includes toner particles having a diameter of between 4 and 10 microns and transfer assisting particles appended to the toner particles surface. The transfer assisting particles have a diameter of between 20 and 100 nm. The toner image is transferred from the primary image member to an intermediate image member having an overcoat layer, the overcoat layer having a Young's modulus of from 250 to 500 MPa. The toner image is transferred from the intermediate image member to a receiving sheet wherein the intermediate image member drives the primary image member or the receiving sheet.Type: ApplicationFiled: January 6, 2009Publication date: May 7, 2009Inventors: Donald S. Rimai, Biao Tan, Craig M. Cody, Rodney R. Bucks, Charles E. Hewitt, M.Cristina B. Dejesus, Paul L. Nielsen, Diane M. Herrick
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Patent number: 7488563Abstract: The present invention is a method of forming a toner image on a receiving sheet. The method includes forming an electrostatic image on a primary image member and toning the image with a dry toner to form a toner image. The toner includes toner particles having a diameter of between 4 and 10 microns and transfer assisting particles appended to the toner particles surface. The transfer assisting particles have a diameter of between 20 and 100 nm. The toner image is transferred from the primary image member to an intermediate image member having an overcoat layer, the overcoat layer having a Young's modulus of from 250 to 500 MPa. The toner image is transferred from the intermediate image member to a receiving sheet wherein the intermediate image member drives the primary image member or the receiving sheet.Type: GrantFiled: October 14, 2005Date of Patent: February 10, 2009Assignee: Eastman Kodak CompanyInventors: Donald S. Rimai, Biao Tan, Craig M. Cody, Rodney R. Bucks, Charles E. Hewitt, M. Cristina B. Dejesus, Paul L. Nielsen, Diane M. Herrick