Patent ID: 6866884

Claim:
A method for producing an optical information medium to be optically recorded-and/or read, wherein said medium comprises a coating on at least one surface of the medium of a film of a chemisorbed silane coupling agent containing a water- or oil-repellent substituent, said silane coupling agent being represented by the following formula (1): R 1 Si(X)(Y)(Z) (1) wherein R 1 is the water- or oil-repellent substituent; X, Y and Z are independently a monovalent group; and at least one of X, Y and Z is a group which is capable of forming Si—O—Si bond by polycondensation with silanol group; and said medium has an underlying layer formed in contact with said silane coupling agent film, and at least the surface of said underlying layer comprises a compound having a chemical bond represented by the formula (2): M—A (2) wherein M is a metal atom (including a semimetal), and A is a chalcogen atom selected from O, S, Se, and Te, nitrogen atom, or carbon atom, wherein said underlying layer comprises an active energy beam-curable resin containing particles of a compound having a chemical bond represented by the formula (2), which comprises forming said underlying layer by coating a surface of the optical information medium with said active energy beam-curable resin containing said particles and heat drying.