Method of making a fuser member
AssigneeXerox Corporation
InventorsYu Qi, Nan-Xing Hu
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a fuser member is described. The method includes obtaining a substrate and coating a composition of an anhydride capped polyamic acid oligomer, a multi-amine and a solvent on the substrate to form a polyimide gel layer on the substrate. The solvent is extracted from the polyimide gel layer with an extraction solvent. The extraction solvent is removed to form a polyimide aerogel layer having a porosity of from about 50 percent to about 95 percent. A fluoropolymer is coated on the polyimide aerogel layer and cured or melted to form a release layer.
Claims20
A method of manufacturing a fuser member comprising:
- obtaining a substrate;
- coating a composition of anhydride capped poly(amic acid) oligomers, a multi-amine and a solvent on the substrate to form a polyimide gel layer;
- extracting the solvent from the polyimide gel layer with an extraction solvent;
- removing the extraction solvent to form a polyimide aerogel layer wherein the polyimide aerogel layer has a porosity of from about 50 percent to about 95 percent;
- coating a fluoropolymer particles on the polyimide aerogel layer;
- and
- heating the fluoropolymer particles to form a release layer.
A method of manufacturing a fuser member comprising:
- obtaining a substrate;
- coating a composition of anhydride capped poly(amic acid) oligomers, a multi-amine and a solvent on the substrate to form a polyimide gel layer;
- exchanging the solvent in the polyimide gel layer with an exchange solvent
- extracting the exchange solvent from the polyimide gel layer with an extraction solvent;
- removing the extraction solvent from the polyimide gel layer to form a polyimide aerogel layer wherein the polyimide aerogel layer has a porosity of from about 50 percent to about 95 percent and wherein the polyimide aerogel layer has a pore diameter of from about from about 2 nm to about 200 nm;
- coating a fluoropolymer particles on the polyimide aerogel layer;
- and
- heating the fluoropolymer particles to form a release layer.
A method of manufacturing a fuser member comprising:
- obtaining a substrate;
- coating a composition of anhydride capped poly(amic acid) oligomers, 1,3,5,-triaminophenoxybenzene and a solvent on the substrate to form a polyimide gel layer;
- exchanging the solvent in the polyimide gel layer with an exchange solvent
- extracting the exchange solvent from the polyimide gel layer with an extraction solvent;
- removing the extraction solvent from the polyimide gel layer to form a polyimide aerogel layer wherein the polyimide aerogel layer has a porosity of from about 50 percent to about 95 percent and wherein the polyimide aerogel layer has a pore diameter of from about from about 2 nm to about 200 nm;
- coating a fluoroplastic particles on the polyimide aerogel layer;
- and
- heating the fluoroplastic particles to form a release layer.
Dependencies are inferred from the claim text.