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US 6,309,754 B1Granted
Fusing members having copper oxide-filled, addition-cured siloxane layers
AssigneeNexPress Solutions LLC
InventorsSusan Ann Visser, Charles E. Hewitt
Life of this patent
Estimating the term…
Abstract
A fuser member having a layer which includes: an addition crosslinked polyorganosiloxane elastomer, and copper oxide particles dispersed therein in a concentration of from 5 to 40 percent of the total volume of the layer.
Claims26
A fuser member having a layer comprising an addition crosslinked polyorganosiloxane elastomer, said layer having copper oxide particles dispersed therein in a concentration of from 5 to 40 volume percent of the total volume of said layer.
A fuser member comprising a core and a layer overlying said core, said layer comprising:
- an addition crosslinked polyorganosiloxane elastomer, said elastomer being the addition product of:
- (A) vinyl substituted multifunctional siloxane polymer having the general structure:
- wherein
- R is alkyl having from 1 to 8 carbons, or aryl having a solitary ring of from 6 to 14 carbons including carbons of any ring substituents, with the proviso that about 25 percent or less of said R groups are aryl;
- Z is an olefinic group having from 2 to 8 carbons and a terminal vinyl moiety;
- Zr is alkyl having from 1 to 8 carbons, olefin having from 2 to 8 carbons and a terminal vinyl moiety, or aryl having a solitary ring of from 6 to 14 carbons including carbons of any ring substituents;
- n and m are integers such that the weight average molecular weight of said siloxane polymer between vinyl groups is from 7,000 to 100,000, with the proviso that if m is 0 or 1, at least two of the Z and Zr groups are olefinic groups having from 2 to 8 carbons and a terminal vinyl moiety;
- and
- (B) multifunctional organo-hydrosiloxane having the general structure:
- wherein
- Each T represents:
- or both T's together represent atoms completing an organo-hydrosiloxane ring;
- Rb is H or Ra;
- and
- Ra is alkyl having from 1 to 8 carbons, or aryl having a solitary ring of from 6 to 14 carbons including carbons of any ring substituents;
- with the proviso that at least two Rb moieties are H;
- said layer further comprising copper oxide particles dispersed therein in a concentration of from 5 to 40 volume percent of the total volume of said layer.
14 more elements
Dependencies are inferred from the claim text.