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US 7,223,807 B2Granted
High dielectric resin composition
AssigneeSumitomo Chemical Company, Limited
InventorsSatoshi Okamoto, Shiro Katagiri
Life of this patent
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Abstract
An object of the present invention is to provide a resin composition which is capable of manufacturing a high dielectric resin film having high dielectric constant and small dielectric loss tangent. And the present invention provides high dielectric resin composition comprising: a high dielectric filler; and resin; wherein a relative dielectric constant of the high dielectric filler satisfies the following formulae (1) and (2). [(∈T−∈25)/∈25]MAX≦0.03 (1) 40≦∈25≦1000 (2)
Claims17
A high dielectric resin composition comprising:
- a high dielectric filler;
- and
- resin;
- wherein a relative dielectric constant of the high dielectric filler satisfies the following formulae (1) and (2),
- [(∈T−∈25)/∈25]MAX≦0.03 (1)
- 40≦∈25≦1000 (2)
- wherein, ∈T represents the relative dielectric constant of the high dielectric filler at a temperature T, the temperature T is from to −20 to 80° C., ∈25 represents the relative dielectric constant of the high dielectric filler at a temperature of 25° C., and [(∈T−∈25)/∈25]MAX denotes a maximum value of an absolute value of a relative dielectric constant variation (∈T−∈25.), and
- wherein the high dielectric filler is at least two selected from the group consisting of BaO, Bi2O3, La2O3, Nd 2O3 and TiO2.
5 more elements
A high dielectric resin film comprising a high dielectric filler;
- and
- resin;
- wherein a relative dielectric constant of the high dielectric filler satisfies the following formulae (1) and (2),
- [(∈T−∈25)/∈25]MAX≦0.03 (1)
- 40≦∈25≦1000 (2)
- wherein, ∈T represents the relative dielectric constant of the high dielectric filler at a temperature T, the temperature T is from to −20 to 80° C., ∈25 represents the relative dielectric constant of the high dielectric filler at a temperature of 25° C., and [(∈T−∈25)/∈25]MAX denotes a maximum value of an absolute value of a relative dielectric constant variation (∈T−∈25.), and
- wherein the high dielectric filler is at least two selected from the group consisting of BaO, Bi2O3, La2O3,Nd2O3 and TiO2.
4 more elements
Dependencies are inferred from the claim text.