Mitsubishi Plastics, Inc.

Kazunari Katsuhara

Jun Takagi

Takayuki Watanabe

Takashi Hiruma

Miki Nishida

To obtain a reflection film that does not undergo yellowing or a reduction in reflectance with a lapse of time by using, has excellent deadfold properties, generates less calorific when incinerated, and is degradable by microorganisms when subjected to earth filling, and causes no problem of waste disposal, the reflection film includes an aliphatic polyester based resin as a base resin and fine powder filler. The reflection film has pores inside thereof at a porosity of 50% or less. Preferably, the fine powder filler includes titanium oxide.

Aliphatic polyester based resin reflection film and reflection plate

A reflective film includes a substantially non-drawn film having a layer A that includes a resin composition A containing a resin having a refractive index of less than 1.52 and titanium oxide. The titanium oxide has a refractive index of 2.5 or more, and a vanadium content of 5 ppm or less, and the film has a light reflectance of 95% or more to light having a wavelength of 550 nm, and a heat shrinkage ratio after treatment at 80&#xb0; C. for 180 minutes of greater than &#x2212;0.1% and less than 1.0% in both a longitudinal direction (MD) and in a transverse direction (TD).

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Nagahama, Japan

Kazunari Katsuhara