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US 5,102,741 AGranted
Organic polymer material having antistatic property, elastic revolution body and fixing device using the same
AssigneeCanon Kabushiki Kaisha
InventorToshiyuki Miyabayashi
Life of this patent
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Abstract
There are provided an organic polymer composition having an antistatic property, and a molding product and a fixing device using the same. The organic polymer composition comprises at least an organic polymer and porous inorganic fine powder carrying a liquid antistatic agent dispersed in the organic polymer; the porous inorganic fine powder having an oil absorption of 100 ml/100 g or larger before it carries the liquid antistatic agent.
Claims20
An elastic revolution body having a layer characterized by its elasticity, said layer comprising an organic polymer composition obtained by thermally molding a mixture comprising:
- (a) an organic polymer comprising a silicone rubber and (b) a porous inorganic fine powder having an average particle size of 1-70 microns and carrying a liquid antistatic agent dispersed in said organic polymer, said liquid antistatic agent being selected from the group consisting of a surfactant, a polyether-modified silicone oil and an amino-modified silicone oil;
- said porous inorganic fine powder having an oil absorption of at least 100 ml/100 g, wherein the liquid antistatic agent is releasably contained by the porous inorganic fine powder such that the liquid antistatic agent is gradually emitted from the powder and supplied to the organic polymer during use to enhance an image fixing capability of said elastic revolution body.
Dependencies are inferred from the claim text.