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1. (WO1992009661) SQUARYLIUM AND CROCONYLIUM DYES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009661 International Application No.: PCT/US1991/008695
Publication Date: 11.06.1992 International Filing Date: 20.11.1991
IPC:
B41M 5/26 (2006.01) ,B41M 5/40 (2006.01) ,B41M 5/46 (2006.01) ,C09B 57/00 (2006.01) ,C09B 57/02 (2006.01) ,G11B 7/244 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5
Duplicating or marking methods; Sheet materials for use therein
26
Thermography
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5
Duplicating or marking methods; Sheet materials for use therein
26
Thermography
40
characterised by the base, intermediate or covering layers; Heat, radiation filtering or absorbing means or layers; combined with layers or compositions suitable for other methods of image registration; Special originals for reproduction by thermography
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
5
Duplicating or marking methods; Sheet materials for use therein
26
Thermography
40
characterised by the base, intermediate or covering layers; Heat, radiation filtering or absorbing means or layers; combined with layers or compositions suitable for other methods of image registration; Special originals for reproduction by thermography
46
characterised by the light-to-heat converting means; characterised by the heat or radiation filtering or absorbing means or layers
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
57
Other synthetic dyes of known constitution
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
57
Other synthetic dyes of known constitution
02
Coumarine dyes
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
24
Record carriers characterised by shape, structure or physical properties, or by the selection of the material 
241
Record carriers characterised by the selection of the material
242
of recording layers
244
comprising organic materials only
Applicants:
POLAROID CORPORATION [US/US]; 549 Technology Square Cambridge, MA 02139, US
Inventors:
TELFER, Stephen, J.; US
SHORT, Robert, P.; US
STROUD, Stephen, G.; US
PUTTICK, Anthony, J.; US
RAMOS, Socorro, M.; US
ZURAW, Michael, J.; US
Agent:
COLE, David, J.; Polaroid Corporation Patent Dept. 549 Technology Square Cambridge, MA 02139-3589, US
Priority Data:
616,63921.11.1990US
Title (EN) SQUARYLIUM AND CROCONYLIUM DYES
(FR) COLORANTS A BASE DE SQUARYLIUM ET DE CROCONYLIUM
Abstract:
(EN) Dyes comprising an inner salt of a compound of the formula: Q1=Z-Q2, wherein: Q1 is a 4-(benz[b]-4H-pyrylium)methylidene, 4-(benz[b]-4H-thiopyrylium)methylidene or 4-(benz[b]-4H-selenopyrylium)methylidene grouping; Z is a 1,3-(2-hydroxy-4-oxo-2-cyclobutyledene)hydroxide or 1,3-(2-hydroxy-4,5-dioxo-2-cyclopentylidene) hydroxide ring; and Q2 is a 4-(benz[b]-4H-pyran-4-ylidene)methyl, 4-(benz[b]-4H-thiopyran-4-ylidene)methyl or 4-(benz[b]-4H-selenopyran-4-ylidene)methyl grouping; wherein at least one of the groupings Q1 and Q2 carries at its 2-position a substituent in which a non-aromatic carbon atom is bonded directly to the benzpyrylium, benzthiopyrylium or benzselenopyrylium nucleus, subject to the proviso that if this 2-substituent contains an aromatic nucleus, this aromatic nucleus is not conjugated with the benzpyrylium, benzthiopyrylium or benzselenopyrylium nucleus to which it is attached, are useful as visible and near infra-red absorbers, having high extinction coefficients and improved solubility in polymeric media.
(FR) Colorants comprenant le sel interne d'un composé de formule: Q1=Z-Q2 dans laquelle: Q1 représente un groupement 4-(benz[b]-4H-pyrylium)méthylidène, 4-(benz[b]-4H-thiopyrylium)méthylidène ou 4-(benz[b]-4H-sélénopyrylium)méthylidène; Z représente un composé cyclique 1,3-(2-hydroxy-4-oxo-2-cyclobutylidène) hydroxyde ou 1,3-(2-hydroxy-4,5-dioxo-2-cyclopentylidène) hydroxyde; et Q2 représente un groupement 4-(benz[b]-4H-pyrane-4-ylidène)méthyle,4-(benz[b]-4H-thiopyrane-4-ylidène)méthyle ou 4-(benz[b]-4H-sélénopyrane-4-ylidène)méthyle; où au moins l'un des groupements Q1 et Q2 comporte en position 2 un substituant dans lequel un atome de carbone non aromatique est lié directement au noyau de benzpyrylium, benzthiopyrylium ou benzsélénopyrylium, à condition que si ce substituant contient un noyau aromatique, celui-ci ne se conjugue pas au noyau de benzpyrylium, benzthiopyrylium ou benzsélénopyrylium auquel il est fixé. Ces colorants sont efficaces comme absorbants du rayonnement infrarouge visible et proche (entre 700 et 1200 nm environ), étant donné qu'ils possèdent des coefficients d'extinction élevés et une solubilité accrue dans des milieux polymères.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0511381JP3094037JPH05505641CA2070280