Patent ID: 7892619
Filing Date: 2011-02-22
Classification: C09D,G11B,Y10T

Abstract:
1. A coating composition for optical recording of an image, the composition comprising: a) a uniform dispersion of polymer particles in a liquid, said polymer particles having a melting temperature lower than an ambient temperature of optical recording; b) a quantity of dye particles uniformly dispersed in the liquid, the dye particles being soluble in the polymer but not dissolved in the polymer particles prior to optical recording, substantially insoluble in the liquid, and having a melting temperature higher than said ambient temperature of optical recording; and c) a quantity of radiation absorber material adapted to absorb radiation at a predetermined wavelength, wherein the predetermined wavelength of the adapted radiation absorber material is the wavelength of a laser for optical recording of an image, the radiation absorber material being dissolved or uniformly dispersed in the polymer particles.