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US4000158A Expired / Lapsed US ⏱️ 0.0 years remaining

Phthalocyanine compounds

Assignee: Sandoz AG
•
Filing: 1974-01-24
•
Granted: 1976-12-28
•
Expires: 1994-01-24
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Abstract

Abstract Disclosed are phthalocyanine dyes of formula ##STR1## IN WHICH Me signifies copper or nickel Pc signifies a phthalocyanine radical, The R 1 's, independently, signify a linear, branched or cyclic aliphatic radical, unsubstituted or substituted by chlorine, bromine, alkoxy, cyano, alkylcarbonyl, alkoxycarbonyl, benzoyl, alkylcarbonyloxy, alkoxycarbonyloxy or benzoyloxy, The R 2 's, independently, signify a phenyl radical, unsubstituted or substituted by a chlorine or bromine atom or a nitro or cyano group or by up to two substituents selected from methyl, methoxy and ethoxy groups, m signifies 1 or 2, and n signifies 2 or 3, The sum n + m being 3 or 4 And mixtures thereof, their production and use particularly in the dyeing of paper and plastics and in the production of surface coating media such as inks and lacquers.

Inventors

  • 👤 Hans von Tobel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 16:46
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 76 words
A compound or mixture of compounds of formula I' ##STR10## wherein Me is copper or nickel, Pc is a phthalocyanine radical, the R 1 ''s, independently, are cyclohexyl, linear or branched chain alkyl of 3 to 8 carbon atoms or linear or branched chain alkyl of 3 to 8 carbon atoms monosubstituted by alkoxy of 1 to 4 carbon atoms, the R 2 ''s, independently, are phenyl, toluyl or xylyl, and n is 2 or 3.
Claim 2
Dependent Claim 76 words
A compound or mixture of compounds of formula I' ##STR10## wherein Me is copper or nickel, Pc is a phthalocyanine radical, the R 1 ''s, independently, are cyclohexyl, linear or branched chain alkyl of 3 to 8 carbon atoms or linear or branched chain alkyl of 3 to 8 carbon atoms monosubstituted by alkoxy of 1 to 4 carbon atoms, the R 2 ''s, independently, are phenyl, toluyl or xylyl, and n is 2 or 3.
Claim 3
Dependent Claim 14 words
A compound or mixture of compounds of claim 1, wherein any alkoxy is methoxy.
Claim 4
Dependent Claim 48 words
A compound or mixture of compounds of claim 2 and of formula I" ##STR11## in which Pc is as defined in claim 2, and the R 1 "'s, independently, are a linear or branched chain alkyl radical of 3 to 8 carbon atoms, unsubstituted or substituted by methoxy.
Claim 5
Dependent Claim 9 words
A compound of claim 3 and of formula ##STR12##
Claim 6
Dependent Claim 16 words
A mixture of compounds of claim 3, the compounds in said mixture being of formulae ##STR13##

References Cited (Backward Citations)

US2300572A Cited
US2153740A Cited
US2897207A Cited
US3042683A Cited
US3010970A Cited
US3082213A Cited
US3185701A Cited
US3470200A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-12-28 1980-06-28 1980-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-12-28 1984-06-28 1984-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-12-28 1988-06-28 1988-12-28 $7700.00 Window Closed / Lapsed

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