Perfluorinated polyether release agent for fuser members

Details Perfluorinated polyether release agent for fuser members Perfluorinated polyether release agent for fuser members

2006-05-31

2009-02-17

Zacharia, Ramsey (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S421000, C428S447000, C399S333000

Reexamination Certificate

active

07491435

ABSTRACT:
A fuser member having a substrate; an outer layer containing a silicone or fluoropolymer; and a release agent material coating on the outer layer, wherein the release agent material coating includes a perfluorinated polyether having a skeleton of Formulas I or II or mixtures thereof:in-line-formulae description="In-line Formulae" end="lead"?CF3—(CF2CF2)m—O—(R1R2O)—(R3R3O)n—(R3O)p—(CF2)q—CF3  Formula Iin-line-formulae description="In-line Formulae" end="tail"?wherein R1is selected from the group consisting of CF2, CF—CF3and —NR4R5; R2is selected from the group consisting of CF2, CF—CF3, and —NR4R5; R3is selected from the group consisting of CF2and CF3; R4is selected from the group consisting of hydrogen, alkyl group having from about 1 to about 18 carbon atoms, arylalkyl group having from about 7 to about 18 carbon atoms, mercapto, hydride and carbinol functional group; R5is selected from the group consisting of alkyl having from about 1 to about 20 carbons, and a fluoroalkyl having from about 2 to about 10 carbons; m is a number of 0 or 1; n is a number of from about 0 to about 500; p is a number of from about 0 to about 100; q is a number of 0 or 1; and p+n is a number of from about 180 to about 500; andin-line-formulae description="In-line Formulae" end="lead"?R1—(CF2CF2)m—O—(R2R2O)n—(R2O)p—(CF2)q—CF3—R1  Formula IIin-line-formulae description="In-line Formulae" end="tail"?wherein R1is CF3; R2is CF2, or CF—CF3; m is a number of 0 or 1; n is a number of from about 0 to about 500; p is a number of from about 0 to about 100; q is a number of 0 or 1; and p+n is a number of from about 180 to about 500.

REFERENCES:
patent: 4430406 (1984-02-01), Newkirk et al.
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patent: 6695904 (2004-02-01), Burger et al.
patent: 2007/0110994 (2007-05-01), Pickering
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patent: 02137876 (1990-05-01), None
English language translation of JP 02-137876, May 1990.

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