Fluorocarbon-silicone interpenetrating network useful as fuser member coating
AssigneeNexPress Solutions LLC
InventorsJerry A. Pickering, Stephen V. Davis, Jiann H. Chen
Life of this patent
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Abstract
A fuser member whose outermost layer comprises a fluorocarbon-silicone interpenetrating network, comprising: (a) a first polymer comprising a fluorocarbon elastomer; (b) a second polymer selected from a curable polyfunctional poly(C(1-6) alkyl)siloxane polymer; a curable polyfunctional poly(C(1-6) alkyl)arylsiloxane polymer; and combinations thereof; and (c) a functionalized polydimethylsiloxane containing amine groups.
Claims28
A fuser member whose outermost layer comprises a fluorocarbon-silicone interpenetrating network composition, comprising:
- a fluorocarbon elastomer;
- about 10-150 parts of a curable siloxane polymer;
- about 1-60 parts of a functionalized polydimethylsiloxane of the formula:
- wherein
- R and R′ are independently alkyl;
- haloalkyl;
- aryl;
- alkylene;
- or arylene;
- all having 1 to 10 carbon atoms;
- X and Y are functional groups having an active hydrogen selected from —NH2, or —NR″H where R″ is C(1-6) alkyl or aryl;
- and where
- n, m and o are positive integers including zero such that n+m+o provides a number average molecular weight in the range of about 1000 to 20,000;
- about 1-10 parts of a fluorocarbon curing agent;
- about 1-10 parts of a fluorocarbon-curing accelerator;
- about 4-30 parts of an acid acceptor filler;
- and
- about 0-30 weight percent of an inert filler;
- all based on 100 parts fluorocarbon elastomer, wherein the total siloxane polymer content of the fluorocarbon-silicone interpenetrating network composition is about 30.1 weight percent-about 36.7 weight percent.
A fuser member whose outermost layer comprises a fluorocarbon-silicone interpenetrating network composition, comprising the following:
- a fluorocarbon elastomer;
- about 10-150 parts of a curable siloxane polymer;
- about 1-60 parts of a functionalized polydimethylsiloxane of the formula:
- wherein
- R is independently alkyl;
- haloalkyl;
- aryl;
- alkylene;
- or arylene;
- all having 1 to 10 carbon atoms;
- X and Y are functional groups having an active hydrogen selected from —NH2, or —NR″H, where R″ is C(1-6) alkyl or aryl;
- and
- n, m and o are positive integers including zero such that n+m+o provides a number average molecular weight in the range of about 1000 to 20,000;
- about 1-10 parts of a fluorocarbon curing agent;
- about 1-10 parts of a fluorocarbon-curing accelerator;
- about 4-30 parts of an acid acceptor filler;
- and
- about 0-30 weight percent of an inert filler;
- all based on 100 parts fluorocarbon elastomer, wherein the total siloxane polymer content of the fluorocarbon-silicone interpenetrating network composition is about 30.1 weight percent-about 36.7 weight percent.
A fuser member whose outermost layer comprises a fluorocarbon-silicone interpenetrating network composition, comprising:
- a fluorocarbon elastomer;
- about 50-150 parts of a curable siloxane polymer;
- about 5-50 parts of a functionalized polydimethylsiloxane of the formula:
- wherein
- R and R′ are independently alkyl;
- haloalkyl;
- aryl;
- alkylene;
- or arylene;
- all having 1 to 10 carbon atoms;
- X and Y are functional groups having an active hydrogen selected from —NH2, or —NR″H where R″ is C(1-6) alkyl or aryl;
- and where
- n, m and o are positive integers including zero such that n+m+o provides a number average molecular weight in the range of about 1000 to 20,000;
- about 1-10 parts of a fluorocarbon curing agent;
- about 1-10 parts of a fluorocarbon-curing accelerator;
- about 4-30 parts of an acid acceptor filler;
- and
- about 0-30 weight percent of an inert filler;
- all based on 100 parts fluorocarbon elastomer, wherein the total siloxane polymer content of the fluorocarbon-silicone interpenetrating network composition is about 30.1 weight percent-about 36.7 weight percent.
Dependencies are inferred from the claim text.