EP0232964A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Near-infrared sensitive phthalocyanine-polymer compositions
Assignee: Toray Industries Inc
•
Filing: 1987-01-09
•
Granted: —
•
Expires: 2007-01-09
Abstract
Abstract A novel near-infrared sensitive phthalocyanine-polymer composition comprises a substituted aluminum phthalocyanine and a polymer wherein substituted aluminum phthalocyanine dimers and/or dimer aggregates which are responsible for the near-infrared sensitivity, are included. The near-infrared sensitive phthalocyanine-polymer composition has useful characteristics: (A) when the near-infrared sensitive phthalocyanine-polymer composition is heated above the T g (Glass Transition Temperature ) of the polymer either by direct heating or by absorbing irradiated light energy, optical properties of said near-infrared sensitive phthalocyanine-polymer composition - absorbance and/or reflectivity -are capable of being changed, (B) the thermal change of optical properties of the near-infrared sensitive phthalocyanine-polymer composition can be fixed by further heating above the T f (Thermal Fixation Temperature) higher than the T g of the polymer, (C) said near-infrared sensitive phthalocyanine-polymer composition is capable of being insolubilized to a solvent by heating above the T f , (D) said near-infrared sensitive phthalocyanine-polymer compositions, both unheated and heated above the T f , are very stable and of long life.
Inventors
- 👤 Tetsuya Gotoh
- 👤 Tosiyuki Kondoh
- 👤 Mutsuo Aoyagi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 15:57
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/0147; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/242; G11B7/244; G11B7/246; G11B7/248; Y; Y10; Y10S; Y10S430/00; Y10S430/145; Y10S430/146; Y10S430/165
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
21 words
A near-infrared sensitive phthalocyanine-polymer substantially homogeneous composition comprising a polymer and a substituted aluminum phthalocyanine, which exhibits absorption in near-infrared wavelengths.
Claim 2
Dependent Claim
21 words
A near-infrared sensitive phthalocyanine-polymer substantially homogeneous composition comprising a polymer and a substituted aluminum phthalocyanine, which exhibits absorption in near-infrared wavelengths.
Claim 3
Independent Claim
24 words
A method of heating a near-infrared sensitive phthalocyanine-polymer composition as defined in claim l, wherein said phthalocyanine-polymer composition is exposed to a laser light.
Claim 4
Dependent Claim
25 words
A method of heating a near-infrared sensitive phthalocyanine-polymer composition as in claim 2, wherein the laser light is emitted from a solid state diode laser.
Claim 5
Dependent Claim
26 words
A method of heating a near-infrared sensitive phthalocyanine-polymer composition as in claim 2, wherein the laser light has an emission wavelength from 750 to 870 nm.
Claim 6
Dependent Claim
30 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein thermal change of optical properties of said phthalocyanine-polymer composition occurs above the T g (Glass Transition Temperature) of said polymer.
Claim 7
Dependent Claim
38 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein thermal fixation of change of optical properties of said phthalocyanine-polymer composition occurs above a certain temperature T f (Fixation Temperature) higher than the T g of said polymer.
Claim 8
Dependent Claim
24 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, which is capable of being insolubilized to solvent by heating above the T f .
Claim 9
Dependent Claim
24 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, comprising substituted aluminum phthalocyanine dimers and/or dimer aggregates which are responsible for the near-infrared sensitivity.
Claim 10
Dependent Claim
86 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein the substituted aluminum phthalocyanine has the formula wherein X is selected from the group consisting of chlorine bromine, hydroxy, alkoxy from C₁ to C₄ or carbonyloxy from C₁ to C₄, and Y₁, Y₂, Y₃ and Y₄ are selected from the group consisting of hydrogen, chlorine, bromine, hydroxy, alkyl from C₁ to C₆, hydroxyalkyl from C₁ to C₆, alkoxy from C₁ to C₆, amino, amide from C₁ to C₆, nitro, cyano and/or carbonyl from C₁ to C₄.
Claim 11
Dependent Claim
17 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein said substituted aluminum phthalocyanine is chloroaluminum chlorophthalocyanine.
Claim 12
Dependent Claim
17 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein said substituted aluminum phthalocyanine is bromoaluminum bromophthalocyanine.
Claim 13
Dependent Claim
24 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l, wherein said polymer has at least one component which is capable of forming hydrogen bonding.
Claim 14
Dependent Claim
23 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim 12, wherein said component which is capable of forming hydrogen bonding is a hydroxy group.
Claim 15
Dependent Claim
35 words
A near-infrared sensitive phthalocyanine-polymer composition as in claim l3, wherein said polymer is selected from the group consisting of poly(vinylalcohol), poly(vinylacetal), hydroxyalkyl cellulose, acetyl cellulose, poly(saccharide), poly(vinylpyridine), poly(vinylpyrrolidone), polyepoxide, poly(bis-epoxide), polyurethane, polyamide, or their copolymers.
Claim 16
Independent Claim
56 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) coating a solution of said phthalocyanine and said polymer in a solvent which is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, on the substrate, (B) drying the coated phthalocyanine-polymer composition below the T g of said polymer.
Claim 17
Independent Claim
56 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) coating a solution of said phthalocyanine and said polymer in a solvent which is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, on the substrate, (B) drying the coated phthalocyanine-polymer composition below the T g of said polymer.
Claim 18
Independent Claim
79 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) coating a solution of said phthalocyanine and said polymer in a good solvent common to said phthalocyanine and said polymer, on the substrate, (B) treating the coated phthalocyanine-polymer composition with a solvent or with a solvent vapor, wherein said solvent is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, (C) drying treated phthalocyanine-polymer composition below the T g of said polymer.
Claim 19
Independent Claim
79 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) coating a solution of said phthalocyanine and said polymer in a good solvent common to said phthalocyanine and said polymer, on the substrate, (B) treating the coated phthalocyanine-polymer composition with a solvent or with a solvent vapor, wherein said solvent is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, (C) drying treated phthalocyanine-polymer composition below the T g of said polymer.
Claim 20
Independent Claim
70 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) constructing a double layer of said phthalocyanine and said polymer on the substrate, (B) treating said double layer with a solvent or with a solvent vapor, wherein said solvent is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, (C) drying treated and resultant phthalocyanine-polymer composition below the T g of said polymer.
Claim 21
Independent Claim
70 words
A method of preparation of a near-infrared sensitive phthalocyanine-polymer composition comprising: (A) constructing a double layer of said phthalocyanine and said polymer on the substrate, (B) treating said double layer with a solvent or with a solvent vapor, wherein said solvent is a moderately good solvent to said phthalocyanine and a good solvent to said polymer, (C) drying treated and resultant phthalocyanine-polymer composition below the T g of said polymer.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.