C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/195, 42/2
C09B 47/08 (2006.01) C07C 17/14 (2006.01) C07F 7/02 (2006.01) C07F 7/12 (2006.01) C07F 7/18 (2006.01) C09B 47/04 (2006.01) G11B 7/24 (2006.01) G11B 7/248 (2006.01)
Patent
CA 1255655
ABSTRACT OF THE DISCLOSURE Provided is an information recording medium, e.g., an optical recording medium, and a method for recording information thereon. The information layer of the recording medium comprises an organo macrocyclic chromophore containing a central hetero atom or two central hydrogen atoms or isotopes of hydrogen, e.g., a naphthalocyanine having silicon as the hetero atom, which chromophore is substituted with at least one substituent conferring film forming properties to the chromophore, e.g., a monomer or oligomeric substituent comprised of acid, amide or ester units. The information layer thereby offers excellent thermomechanical properties and exhibits excellent absorption properties all in a single component material. By utilizing a single component material, the problem of dye/polymer phase separation frequently encountered in dye/polymer mixtures is also overcome.
486119
Jones R. Sidney Jr.
Kenney Malcolm E.
Nikles David E.
Case Western Reserve University
Smart & Biggar
The Board Of Trustees Of The University Of Alabama
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