To provide a transparent composite material capable of easily controlling a refractive index of a filling material, regardless of a kind of a stock material thereof, and having enough excellent transparency, by keeping the transparency when the composite material is mixed into various kinds of resins of which the refractive indices are different from one another.
This composite material is given by adding a hollow filling material to a transparent material, wherein a size of the filling material is not less than 1 nm and not more than 380 nm and the filling material and the transparent material have such a relation as to satisfy formula (1) (V1 is a volume of a stock material part of the filling material; V2 is a volume of a hollow part of the filling material; n1 is a refractive index of a stock material part of the filling material; n2 is a refractive index of a hollow part of the filling material; and nm is a refractive index of the transparent material).
| JP2002105088 | HIGHLY ADHESIVE FLAME RETARDANT CURING AGENT |
| JP4577540 | Cavity-containing polyester release film |
ODA TAKASHI
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita
Next Patent: DISPERSION OF POROUS FINE PARTICLES