Back to results
US 2003/0191229 A1Published application
Resin composition
AssigneeNone recorded
InventorsNami Ikeda, Akihiro Ito, Koichi Kobayashi, Shigeru Yanagisawa
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeNone recorded
InventorsNami Ikeda, Akihiro Ito, Koichi Kobayashi, Shigeru Yanagisawa
Estimating the term…
To provide a resin composition having superior rigidity and conductivity at a low price. Movers 11a and 11b are produced as a conductive resin composition by resin molding of a resin composition obtained by melt kneading vapor grown carbon fibers (VGCF) and carbon fibers with a thermoplastic resin such as PPS (polyphenylene sulfide). Among the four external surfaces of each mover, a plurality of convexes 12 extending to the direction perpendicular an optical axis A direction of an electrostatic actuator 3 are formed on the opposing surfaces to an upper stator 21a and a lower stator 21b. Accordingly, the carbon fibers having conductivity are aligned over the whole of each mover, especially even in the fine convexes 12 provided on the external surface thereof, and the VGCF is uniformly dispersed and aligned even in portions where the carbon fibers are not aligned.
A resin composition comprising first fine carbon fibers having a fiber diameter of from 1 to 1,000 nm and second fine carbon fibers having a fiber diameter larger than that of the first fine carbon fibers.
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
Backward citations are indexed for grants only.
Inorganic: elements
Specific properties of additives: additives containing two or more different additives of the same subgroup in C08K
Use of inorganic or non-macromolecular organic substances as compounding ingredients
Term end not estimated
1. Field of the Invention
The present invention relates to a resin composition containing fine carbon fibers.
2. Description of the Related Art
FIG. 1 is a cross-sectional view of an optical device in which the resin composition of the invention is used.
FIG. 2 is an enlarged view of the major portion of FIG. 1.
FIG. 3 is a plan view viewed from the Z1 direction and the Z2 direction of FIG. 2.
One mode for carrying out the invention will be specifically described based on embodiments as shown in the accompany drawings.
First of all, an optical device in which the resin composition of the invention is used will be described with reference to FIG. 1. As shown in FIG. 1, an optical device 1 is provided with a body of equipment 2, an electrostatic actuator 3 as aligned within the body of equipment 2, and a CCD 4 as one example of an imaging array. In this embodiment, the electrostatic actuator 3 has a function as an objective optical system to regulate the image formation relation of an object beam from an object image with the CCD 4 or the like.
In the forefront of the body of equipment 2, is aligned the electrostatic actuator 3. Further, in the rear of the electrostatic actuator 3, is aligned the CCD 4. An image signal as converted by the CCD 4 is transferred into an external device 50 as described later by a lead wire 18 penetrating within a cable 8.