US4622179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphthalocyanine compounds
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1984-07-17
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Granted: 1986-11-11
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Expires: 2004-07-17
Abstract
Abstract Naphthalocyanine compounds represented by the general formula ##STR1## wherein R 1 , R 2 , R 3 and R 4 , which may be the same or different, are each a straight chain or branched chain alkyl group of 5 to 12 carbon atoms and M is a metal selected from the group consisting of Cu, Ni, Mg, Pb, Pd, V, Co, Nb, Al, Sn, In, Fe and Ge, or its oxide, chloride or bromide, are bluish green or green crystals and are superior in absorption of near infrared rays of 750 to 850 nm, highly resistant to light, heat, acids and alkalis, soluble in organic acids, liquid crystals and resins, and accordingly are very useful as a dyestuff capable of absorbing near infrared rays.
Inventors
- 👤 Tsunehito Eda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:20
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C09B47/08; C09B47/18; C09B47/06; C09B47/067; C09B47/0673
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
76 words
A naphthalocyanine compound represented by the general formula ##STR8## characterized in that R 1 , R 2 , R 3 and R 4 , which may be the same or different, are each a straight or branched alkyl group of 5 to 12 carbon atoms and M is a metal selected from the group consisting of Cu, Ni, Mg, Pb, Pd, V, Co, Nb, Al, Sn, In, Fe and Ge or its oxide, chloride or bromide.
Claim 2
Dependent Claim
76 words
A naphthalocyanine compound represented by the general formula ##STR8## characterized in that R 1 , R 2 , R 3 and R 4 , which may be the same or different, are each a straight or branched alkyl group of 5 to 12 carbon atoms and M is a metal selected from the group consisting of Cu, Ni, Mg, Pb, Pd, V, Co, Nb, Al, Sn, In, Fe and Ge or its oxide, chloride or bromide.
Claim 3
Dependent Claim
12 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tetra-tert-amylvanadylnaphthalocyanine.
Claim 4
Dependent Claim
13 words
A naphthalocyanine compound as claimed in claim 1, characterized by being copper tetra-tert-amylnaphthalocyanine.
Claim 5
Dependent Claim
13 words
A naphthalocyanine compound as claimed in claim 1, characterized by being nickel tetra-tert-amylnaphthalocyanine.
Claim 6
Dependent Claim
13 words
A naphthalocyanine compound as claimed in claim 1, characterized by being magnesium tetra-tert-amylnaphthalocyanine.
Claim 7
Dependent Claim
13 words
A naphthalocyanine compound as claimed in claim 1, characterized by being lead tetra-tert-amylnaphthalocyanine.
Claim 8
Dependent Claim
13 words
A naphthalocyanine compound as claimed in claim 1, characterized by being palladium tetra-tert-amylnaphthalocyanine.
Claim 9
Dependent Claim
15 words
A naphthalocyanine compound as claimed in claim 1, characterized by being cobalt tetra-tert, sec-mixed amylnaphthalocyanine.
Claim 10
Dependent Claim
15 words
A naphthalocyanine compound as claimed in claim 1, characterized by being niobium tetra-tert, sec-mixed amylnaphthalocyanine.
Claim 11
Dependent Claim
16 words
A naphthalocyanine compound as claimed in claim 1, characterized by being aluminium tetra-tert, sec-mixed amylnaphthalocyanine chloride.
Claim 12
Dependent Claim
15 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tin tetra-tert, sec-mixed amylnaphthalocyanine.
Claim 13
Dependent Claim
15 words
A naphthalocyanine compound as claimed in claim 1, characterized by being indium tetra-tert, sec-mixed amylnaphthalocyanine.
Claim 14
Dependent Claim
16 words
A naphthalocyanine compound as claimed in claim 1, characterized by being iron tetra-tert, sec-mixed amylnaphthalocyanine chloride.
Claim 15
Dependent Claim
15 words
A naphthalocyanine compound as claimed in claim 1, characterized by being germanium tetra-tert, sec-mixed amylnaphthalocyanine.
Claim 16
Dependent Claim
14 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tetra-tert, sec-mixed amylvanadylnaphthalocyanine.
Claim 17
Dependent Claim
12 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tetra-tert-heptylvanadylnaphthalocyanine.
Claim 18
Dependent Claim
12 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tetra-tert-octylvanadylnaphthalocyanine.
Claim 19
Dependent Claim
12 words
A naphthalocyanine compound as claimed in claim 1, characterized by being tetra-tert-dodecylvanadylnaphthalocyanine.
References Cited (Backward Citations)
SU321131A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |