Sekisui Fine Chemical Co., Ltd.

Sekisui Kagaku Kogyo Kabushiki Kaisha

Kazuo Saiuchi

Minoru Kohara

Kazuhiko Kanki

Kunikazu Yamada

Hisayuki Matsuda

Yukio Ohtsuka

Yutaka Shibata

Shinzo Yamada

A conductive fine sphere with a K-value and a recovery factor in a predetermined range is provided. Suppose a load value (kgf) is F, a compression displacement (mm) is S, and a radius (mm) is R at 10% compression deformation of this spacer, a K-value defined as the following equation is in the range of 250 kgf/mm.sup.2 to 700 kgf/mm.sup.2 at 20.degree. C., and a recovery factor after the compression deformation is in the range of 30% to 80% at 20.degree. C., and ##EQU1##

Fine sphere, a spherical spacer for a liquid crystal display element and

A coated color particle with extremely low susceptibility to decoloring is provided. The coated color particle comprises a colored core particle and a coating layer formed on the surface of the core particle, wherein the coating layer is formed by treatment of the core particle with an agent selected from the group consisting of silane compounds, silyl isocyanates, and organic titanium compounds.

Coated particle

A particulate spacer for use in a liquid crystal display cell, electrochromic display device, or the like is provided. The particulate spacer comprises a core particle and a functional layer formed on the surface of the core particle.

Particulate spacers and liquid crystal display cells containing these

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Ohtsu, Japan

Kazuo Saiuchi