Patent ID: 6869655

Claim:
A disc-shaped optical recording medium, comprising: a support having at least two major surfaces; a recording portion formed on one of the major surfaces of the support for recording signals thereon; a light transmitting layer formed of one of a polycarbonate sheet and a UV light curable resin, on the recording portion, said light transmitting layer having a thickness t of 10 to 177 μm; wherein the light transmitting layer comprises a surface that is configured to receive and transmit illuminating light to the recording portion to record and/or reproduce signals; a surface layer formed of an amine salt compound held on the surface of the light transmitting layer, wherein the amine salt compound is a compound of perfluoropolyether having terminal carboxylic groups, represented by the chemical formulas (1) and/or (2): R f —COO − N + HR 1 R 2 R 3 (formula 1) R 1 R 2 R 3 N + H − CO—R f —COO − N + HR 1 R 2 R 3 (formula 2) where R f denotes a perfluoropolyether group and R 1 , R 2 and R 3 denote hydrogen or a hydrocarbon group, and wherein the perfluoropolyether group R f is represented by the formulas (3), (4), and/or (5): (OC 2 F 4 ) p (OCF 2 ) q (formula 5) where l, j, m, n, p, and q denote integers not less than 1; wherein a surface resistance of that side of the optical recording medium having the amine salt is not larger than 10 13 Ω; and wherein the dynamic frictional coefficient of that side of the optical recording medium having the amine salt is not higher than 0.3; and a skew correcting member on a second of said two major surfaces of said support, said second of said two major surfaces being disposed on a side opposite to a side of said support on which said light transmitting layer is disposed.