Teijin Limited

Eiichi Hashimoto

Kiyoshi Chiba

Takeyoshi Yamada

Akihiro Horike

Koh Mori

Tetsuo Sato

Fumio Ueda

A magnetic recording medium excellent in fungiresistance and having high safety, lubrication and durability is provided, with the magnetic properties not being affected. An anti-fungus agent is added to the recording medium. The added anti-fungus agent is a compound (I) in an amount of 0.005 to 5.0% by weight of the magnetic coating layer: ##STR1## where R stands for C.sub.1 to C.sub.6 straight or branched alkyl, cyclohexyl or, ##STR2## n is an integer of 1 or 2, and X stands for H, CH.sub.3, Cl, Br or I.

Magnetic recording medium with fungiresistance and process for

An optical recording medium, particularly a magneto-optical recording medium, resistant to oxidation deterioration even in a hot and humid atmosphere, is provided by forming an organic protecting adhesive layer of a UV-curved resin having (1) an acid value of not more than 1.5; and (2) a softening point of not less than 50.degree. C. The UV-curved resin layer comprises 15 to 85% by weight of acrylate and/or methacrylate having at least three functionalities; 15 to 70% by weight of a compound having a linear structure and having a molecular weight of at least 300, the compound preferably having at least one ethylenically unsaturated bond and a molecular weight of at least 150 per ethylenically unsaturated bond; and (3) a photopolymerization initiator.

Optical recording medium

An ultrathin film composed substantially of silicon-containing polyurea comprising polyaddition bonded units derived from

Growing community of inventors

Tokyo, Japan

Eiichi Hashimoto