<p>A substrate for an optical disc is disclosed, which comprises a transparent hydrocarbon resin having a softening point of not less than 100 DEG C, the surface thereof having been contact treated with a fluorine-containing gas so that the treated surface has a contact angle with water of not more than 90 DEG and the weight gain due to the treatment does not exceed 1% by weight. The substrate exhibits excellent adhesion to a recording layer formed thereon and excellent heat resistance.</p>
申请公布号
DE69026768(T2)
申请公布日期
1996.09.19
申请号
DE1990626768T
申请日期
1990.07.27
申请人
MITSUBISHI CHEMICAL CORP., TOKIO/TOKYO, JP
发明人
SUGA, YOSHINORI, MACHIDA-SHI, TOKYO, JP;TANAKA, EIJI, KAWASAKI-SHI, KANAGAWA, JP;KATO, SATOSHI, MACHIDA-SHI, TOKYO, JP;SATO, KAORU, TOKYO, JP