Somar Corporation

Takeshi Watanabe

Kazuya Ono

Seitaro Iwamoto

Kunimitsu Matsuzaki

Katsuji Kitagawa

Mikio Osa

A powder coating composition useful for fixation of rotor and stator windings is disclosed, which includes

Powder epoxy resin coating composition

A powder coating composition is disclosed which includes a particulate material containing an epoxy resin and a curing agent, and fine powder of a charge controlling agent such as an acrylic resin, silica or a mixture thereof. The charge controlling agent is deposited on surfaces of the particles of the particulate material.

Epoxy powder coating composition for use in electrostatic coating

A powder coating composition is disclosed which includes a particulate material containing an epoxy resin and a curing agent, and fine powder of a charge controlling agent such as an acrylic resin, silica or a mixture thereof. The charge controlling agent is deposited on surfaces of the particles of the particulate material. Additionally, a powder coating composition is disclosed in which two different charge controlling agents are used and are separately deposited on different particles of epoxy resin consisting particulate material.

A composite material having a substrate and an expanded, cured layer of an epoxy resin composition which is provided over a surface of the substrate and in which a major portion of the cells are present in a location adjacent to the interface between the substrate and the expanded layer and substantially no cells are present on the top surface portion of the expanded layer. The epoxy resin composition includes an acid anhydride curing agent and an alkali metal carbonate blowing agent. The composition is coated over the substrate and the coating is heated to sure and expand the composition while maintaining the top surface of the coating below the expansion temperature.

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Soka, Japan

Takeshi Watanabe