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Wax emulsion for emulsion aggregation toner
   
Document Number
US Patent 7560505
Issued Date
July 14, 2009
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Abstract
A wax emulsion comprised of polyethylene wax and one or more surfactants in an aqueous medium, wherein the polyethylene wax has a degree of crystallinity of from about 50% to about 80% by weight of the polyethylene wax, is provided. The wax emulsion is made by emulsifying the polyethylene wax, one or more surfactants and an aqueous medium in a vessel at a temperature at or above the melting point of the polyethylene wax to form an emulsified product, and subsequently cooling the emulsified product to ambient temperature at a cooling rate of at least 10.degree. C. per minute. The wax emulsion is preferably incorporated into toner particles prepared by emulsion/aggregation/coalescing.
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Number of Claims:
13
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Owner
Xerox Corporation (Norwalk, CT)
Published
July 14, 2009
Application Number
12/054,069
Filed
March 24, 2008
US Classification
524/487   524/488 524/489 524/585
Int'l Classification
C08J   3/22   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS The present application is a divisional application of application Ser. No. 10/859,967 filed Jun. 4, 2004. The disclosure of the prior application is hereby incorporated by reference in its entirety.
USPTO Field of Search
524/488   524/487   524/489   524/585  
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