Contact member to optical disk, protecting film for optical disk and coating composition
AssigneesAkros Co., Ltd., Ntn Corporation
InventorsShin Makino, Yukinobu Nomura, Sadatoshi Inagaki, Satoru Fukuzawa
Life of this patent
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Abstract
A coating comprising a urethane resin as a base, and at least polyurethane particles and fluororesin powder is formed on a surface of a member that is, or can be, contacted with an optical disk in an optical disk apparatus. The coating can prevent the optical disk, i.e., a CD, a DVD, etc., from damaging, even if the optical disk is contacted with a tray or an objective lens.
Claims18
A contact member that is, or can be, contacted with an optical disk in an optical disk apparatus, comprising:
- a portion that is, or can be, contacted with the optical disk, and
- a coating formed on a surface of the portion,
- wherein the coating comprises a urethane resin as a base, and at least polyurethane particles, and fluororesin powder.
A protecting film for an optical disk formed on a portion that is, or can be, contacted with the optical disk in an optical disk apparatus to protect the optical disk from damaging, comprising:
- a urethane resin base,
- polyurethane particles, and
- fluororesin powder.
A coating composition for an optical disk formed on a portion that is, or can be, contacted with the optical disk in an optical disk apparatus to protect the optical disk from damaging, comprising:
- a urethane resin base,
- polyurethane particles, and
- fluororesin powder.
Dependencies are inferred from the claim text.