High-capacity recording media

G - Physics – 11 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G11B 7/24 (2006.01) C09B 47/00 (2006.01) G11B 7/248 (2006.01)

Patent

CA 2210634

An optical recording medium comprising a substrate, a reflecting layer and a recording layer, which recording layer consists essentially of one or more than one dye of formula (I) or chlorination or bromation products thereof (see fig.I) wherein R1 and R2 are each independently of the other C1-C6alkyl or C2-C8alkenyl; R3, R6, R9 and R12 are hydrogen, halogen, CN, CHO, C1-C8alkyl or unsubstituted or substituted C6-C14aryl; R4, R5, R7, R8, R10 and R11 are hydrogen, halogen, NO2, CHO, COOR13, CONR14R15, CN or unsubstituted or substituted C1-C8alkyl or C2-C8alkenyl; or R4 and R5, R7 and R8 and/or R10 and R11 together are an unsubstituted or substituted 1,4-buta-1,3-dienylene, 2-buten-1,4-diylidene, 1,3-propylene or 1,4-butylene bridge, so as to form, optionally together with the shared C-C or C=C group, a five- or six-membered ring; and M is H2 or a divalent metal atom, oxometal, halogenometal or hydroxymetal which may be coordinaled to one or two neutral ligands. The recording media of this invention have high sensitivity and resolution as well as good reproduction characteristics.

Support d'enregistrement optique comprenant un substrat, une couche réfléchissante et une couche d'enregistrement, constituée essentiellement d'une ou de plusieurs composantes de formule (I) ou de ses produits de chloration ou de bromation (voir fig. I), où R1 et R2 sont chacun, indépendamment l'un de l'autre, un alkyle C1-C6 ou un alcényle C2-C8; R3, R6, R9 et R12 sont un hydrogène, un halogène, CN, CHO, un alkyle C1-C8 ou un aryle C6-C14 avec ou sans substitution; R4, R5, R7, R8, R10 et R11 sont un hydrogène, un halogène, NO2, CHO, COOR13, CONR14R15, CN ou un alcényle C2-C8 ou alkyle C1-C8 avec ou sans substitution; ou R4 et R5, R7 et R8 et (ou) R10 et R11 sont ensemble un pont 1,4-buta-1,3-diénylène, 2-butène-1,4-diylidène, 1,3-propylene ou 1,4-butylène avec ou sans substitution, de façon à former, facultativement avec le groupe C-C ou C=C partagé, un cycle à cinq ou six chaînons; M est H2 ou un atome de métal divalent, un oxométal, un halogénométal ou un hydroxymétal, pouvant être coordonnés à un ou deux ligands neutres. Ces supports d'enregistrement possèdent une sensibilité et une résolution élevées, ainsi que de bonnes caractéristiques de reproduction.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

High-capacity recording media does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-capacity recording media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-capacity recording media will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1628873

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.