Sekisui Kagaku Kogyo Kabushiki Kaisha

Hisayuki Matsuda

Minoru Kohara

Kazuhiko Kanki

Kunikazu Yamada

Kazuo Saiuchi

Minoru Takahashi

Hiroshi Inagaki

Sho Kikyotani

Katsuro Shinoda

Shinzo Yamada

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

A process for producing a reduced keratinous substance having a high adsorptive power for cationic substances, which comprises reducing a substance containing keratin as a main ingredient under alkaline conditions to cleave the disulfide linkages of the keratin, dissolving the reduced keratin in an aqueous medium containing urea or thiourea in a concentration of less than 5 moles/liter, and then acidifying the resulting solution to precipitate the dissolved reduced keratin under such conditions that the thiol side-chains present in the reduced keratin do not substantially undergo oxidation. The reduced keratinous substance is especially useful as a heavy metal ion capturing agent.

Process for producing reduced keratinous substances using urea or

Growing community of inventors

Nagaokakyo, Japan

Hisayuki Matsuda