Reduced crystallinity polyethylene oxide with intercalated clay
AssigneeEastman Kodak Company
InventorsThomas N. Blanton, Debasis Majumdar, Robert J. Kress, Dwight W. Schwark
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Abstract
The invention relates to a method of forming a polymer composite comprising mixing smectite clay and polyvinyl pyrrolidone to form a first dispersion of intercalated clay, mixing said dispersion with polyethylene oxide to form a second dispersion, flowing said second dispersion into ketone so as to flocculate a polymer composite of polyethylene oxide and intercalated clay and recovering said flocculate, wherein the polyethylene oxide is rendered to reduced crystallinity.
Claims29
A method of forming a polymer composite comprising mixing smectite clay and polyvinyl pyrrolidone to form a first dispersion of intercalated clay, mixing said dispersion with polyethylene oxide to form a second dispersion, flowing said second dispersion into ketone so as to flocculate a polymer composite of polyethylene oxide and intercalated clay and recovering said flocculate.
A polymer composite comprising a smectite clay intercalated with polyvinyl pyrrolidone and polyethylene oxide wherein said composite has IPEO/IClay ratio measured by X-ray diffraction of less than 0.6, wherein said IPEO/IClay ratio comprises a peak height ratio of the X-ray diffraction peak IPEO attributed to polyethylene oxide to the X-ray diffraction (001) peak IClay attributed to the clay at a Bragg angle of 23.2° 2θ.
Dependencies are inferred from the claim text.