Contamination-resistant coated substrates

Details Contamination-resistant coated substrates Contamination-resistant coated substrates

2006-03-28

2006-03-28

Jackson, Monique R. (Department: 1773)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

C428S336000, C428S412000, C428S421000, C428S426000

Reexamination Certificate

active

07018709

ABSTRACT:
A coated substrate is claimed. The coating, disposed on the substrate, comprises a self-assembled film having at least one bilayer. Each bilayer comprises a polyanion electrolyte layer and a polycation electrolyte layer. The uppermost layer or exposed layer of the coating comprises a fluoroalkyl group. Each bilayer thickness ranges from about 0.1 nanometers to about 20 nanometers. The resulting coated substrate has a low surface energy and is hydrophobic and/or oleophobic.

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Andreas F. Thunemann, Kai Helmut Lochhaas, “Surface and Solid-State Properties of a Fluorinated Polyelectrolyte-Surfactant Complex,” Langmuir, Apr. 7, 1999, 4867-4874, vol. 15.
Donald L. Schmidt, et al., “Water-based non-stick hydrophobic coatings,” Nature, Mar. 3, 1994, 39-41, vol. 368.
Junyan Chen, et al., “Fluorescence Studies on Hydrophobic Associations of Fluorocarbon-Modified Poly(acrylic acid) Solutions,” Macromolecules, May 12, 1999, 4861-4866, vol. 32.

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