Fuser member having platinum catalyzed addition cured silicone layer

1. A fuser member for fixing a developed image to a copy substrate comprising:

a) a substrate; and thereover

b) a silicone rubber layer comprising the crosslinked product of:

i) at least one platinum catalyzed addition curable polyorganosiloxane having the following Formula I:

 wherein R 1 , R 2 , R 4 , R 5 are the same or different and are selected from the group consisting of (CH 2 ) p CH 3 wherein p is a number of from about 0 to about 6, phenyl, and CH 2 CH 2 CF 3 ; R 3 is selected from the group consisting of H and (CH 2 ) p CH 3 where p is a number of from 0 to about 6; R 4 is selected from the group consisting of CH 2 ═CH and (CH 2 ) p CH 3 where p is a number of from 0 to about 6; n is a number of from about 10 to about 4,000; and m is a number of from about 2 to about 4000;

ii) aluminum oxide fillers;

iii) iron oxide fillers: and

iv) a crosslinking agent selected from the group consisting of 1,3,5,7-tetravinyltetramethyl cyclotetrasiloxane, tetravinylsilane, and 1,1,3,3-tetravinyldimethyldisiloxane.

2. A fuser member in accordance with claim 1 , wherein p in (CH 2 ) p CH 3 of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 in Formula I is from about 1 to about 4.

3. A fuser member in accordance with claim 1 , wherein said fuser member further comprises an outer layer positioned on said silicone rubber layer, wherein said outer layer comprises a fluoroelastomer.

4. A fuser member in accordance with claim 3 , wherein said fluoroelastomer is selected from the group consisting of a) copolymers of two of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; b) terpolymers of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene; and c) tetrapolymers of vinylidene fluoride, hexafluoropropylene, tetrafluoroethylene and a cure site monomer.

5. A fuser member in accordance with claim 4 , wherein said fluoroelastomer comprises about 35 weight percent of vinylidene fluoride, about 34 weight percent of hexafluoropropylene, about 29 weight percent of tetrafluoroethylene, and about 2 weight percent cure site monomer.

6. A fuser member in accordance with claim 1 , wherein said aluminum oxide fillers are present in an amount of from about 50 to about 80 percent by weight of total solids.

7. A fuser member in accordance with claim 1 , wherein said iron oxide fillers are present in an amount of from about 1 to about 50 percent by weight of total solids.

8. A fuser member in accordance with claim 1 , wherein said aluminum oxide fillers comprise a silane coating.

9. A fuser member in accordance with claim 8 , wherein said silane coating is selected from the group consisting of epoxy silane, vinyl silane, amine silane, methyltrimethoxysilane, and phenyl silane.

10. A fuser member in accordance with claim 1 , wherein said iron oxide fillers comprise a silane coating.

11. A fuser member in accordance with claim 10 , wherein said silane coating is selected from the group consisting of epoxy silane, vinyl silane, amine silane, methyltrimethoxysilane, and phenyl silanes.

12. A fuser member in accordance with claim 1 , wherein said silicone rubber layer has a thickness of from about 1 mm to about 10 mm.

13. A fuser member in accordance with claim 1 , wherein said silicone rubber layer has a hardness from about 50 to about 78 Shore A.

14. A fuser member in accordance with claim 1 , wherein said silicone rubber layer has a modulus of from about 500 to about 800 psi.

15. An image forming apparatus for forming images on a recording medium comprising:

a charge-retentive surface to receive an electrostatic latent image thereon;

a development component to apply toner to said charge-retentive surface to develop an electrostatic latent image to form a developed image on said charge retentive surface;

a transfer film component to transfer the developed image from said charge retentive surface to a copy substrate; and

a fusing component for fusing toner images to a surface of said copy substrate, said fusing component comprising:

a) a substrate; and thereover

b) a silicone rubber layer comprising the crosslinked product of:

i) at least one platinum catalyzed addition curable polyorganosiloxane having the following formula I:

 wherein R 1 , R 2 , R 4 , R 5 are the same or different and are selected from the group consisting of (CH 2 ) p CH 3 wherein p is a number of from 0 to about 6, phenyl, and CH 2 CH 2 CF 3 ; R 3 is selected from the group consisting of H and (CH 2 ) p CH 3 where p is a number of from about 0 to about 6; R 6 is selected from the group consisting of CH 2 ═CH and (CH 2 ) p CH 3 where p is a number of from 0 to about 6; n is a number of from about 10 to about 4,000;

ii) aluminum oxide fillers;

iii) iron oxide fillers; and

iv) a crosslinking agent selected from the group consisting of 1,3,5,7-tetravinyltetramethyl cyclotetrasiloxane, tetravinylsilane, and 1,1,3,3-tetravinyldimethyldisiloxane.

16. A fuser member for fixing a developed image to a copy substrate comprising:

a) a substrate; and thereover

b) a silicone rubber layer comprising the crosslinked product of:

i) at least one platinum catalyzed addition curable polyorganosiloxane having the following Formula II:

 wherein R 1 , R 2 , R 4 , R 5 are the same or different and are selected from the group consisting of (CH 2 ) p CH 3 wherein p is a number of from 0 to about 6, phenyl, and CH 2 CH 2 CF 3 ; R 3 Is selected from the group consisting of H and (CH 2 ) p CH 3 where p is a number of from 0 to about 6; R 4 is selected from the group consisting of CH 2 ═CH and (CH 2 ) p CH 3 where p is a number of from 0 to about 6; n is a number of from about 10 to about 4,000;

ii) aluminum oxide fillers;

iii) iron oxide fillers;

iv) a crosslinking agent selected from the group consisting of 1,3,5,7-tetravinyltetramethyl cyclotetrasiloxane, tetravinylsilane, and 1,1,3,3-tetravinyldimethyldisiloxane.

17. A fuser member in accordance with claim 16 , wherein p in (CH 2 ) p CH 3 of R 1 , R 2 , R 3 , R 4 R 5 , and R 6 in Formula II is from about 1 to about 4.