Nok Corporation

Yoichi Hagi

Yuichi Suzuki

Kenji Sasaki

Satoshi Fukuoka

Asahi Kitagawa

Satoshi Nakakita

Junya Kamiyama

A cleaning blade includes a tip end adapted to contact a photoconductor member. The tip end is formed of polyurethane having tan δ of greater than or equal to 0.35 under an environment of 23° C., a loss elastic modulus of greater than or equal to 5.59 MPa under an environment of 23° C., and a rebound resilience of less than or equal to 21% under an environment of 23° C.

Cleaning blade

Provided are a polyurethane elastomer composition excellent in the abrasion resistance and swelling resistance, and a bearing material formed of the polyurethane elastomer composition. The polyurethane elastomer composition contains a polyurethane elastomer of 100 parts by mass, polyethylene wax of 3&#x2dc;25 parts by mass, and paraffin wax of 1&#x2dc;10 parts by mass. Further, preferably the polyurethane elastomer composition contains a cobalt based compound of 0.1&#x2dc;10 parts by mass.

Polyurethane elastomer composition and bearing material

Growing community of inventors

Ibaraki, Japan

Yoichi Hagi