US5618343A
Expired / Lapsed
US
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Pigment compositions for coatings
Assignee: Dominion Colour Co Ltd
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Filing: 1994-12-27
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Granted: 1997-04-08
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Expires: 2014-12-27
Abstract
Abstract The present invention relates to pigment and coating compositions that are used to prepare pigmented coatings that exhibit geometric metamerism or metallic flop. The pigment compositions comprise a small particle size pigment and a flop-enhancing agent, which flop-enhancing agent is a copper phthalocyanine, an indanthrone or a carbazole dioxazine compound. A method of enhancing the flop of a pigmented polymeric coating by incorporating one or more flop-enhancing agents into the composition is also disclosed.
Inventors
- 👤 Shivakumar B. Hendi
- 👤 Edward E. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/08; C09D; C09D5/00; C09D5/36; C09B; C09B67/00; C09B67/0033; C09D1/00
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
137 words
A coating composition comprising a flop-producing amount of an effect pigment a tinctorally-effective amount of a small-particle-size pigment and an effective flop-enhancing amount of a flop-enhancing agent which is a copper phthalocyanine, indanthrone or carbazole dioxazine compound that is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 2
Dependent Claim
137 words
A coating composition comprising a flop-producing amount of an effect pigment a tinctorally-effective amount of a small-particle-size pigment and an effective flop-enhancing amount of a flop-enhancing agent which is a copper phthalocyanine, indanthrone or carbazole dioxazine compound that is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 3
Dependent Claim
113 words
A coating composition of claim 1 wherein the flop-enhancing agent is copper phthalocyanine which is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 4
Dependent Claim
112 words
A coating composition of claim 1 wherein the flop-enhancing agent is indanthrone which is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 5
Dependent Claim
115 words
A coating composition of claim 1 wherein the flop-enhancing agent is a carbazole dioxazine wherein the phenyl rings are unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 6
Dependent Claim
52 words
A coating composition of claim 1 wherein the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound wherein the phenyl rings are substituted by --SO 3 H, --SO 3 M, --CH 2 N(CH 3 ) 2 or --SO 2 --NHCH 2 CH 2 CH 2 N(CH 3 ) 2 .
Claim 7
Dependent Claim
22 words
A coating composition of claim 1 wherein the small-particle-size pigment is a 1,4-diketo-3,6-diaryl-pyrrolopyrrole, a quinacridone, a quinacridonequinone or a solid solution pigment.
Claim 8
Dependent Claim
15 words
A coating composition of claim 6 wherein the small-particle-size pigment is a solid solution pigment.
Claim 9
Dependent Claim
25 words
A coating composition of claim 1 wherein the small-particle-size pigment has a specific surface area within the range from 40 to 100 m 2 /gram.
Claim 10
Dependent Claim
76 words
A coating composition of claim 8 wherein the small-particle-size pigment is selected from the group consisting of β-quinacridone, 2,9-dichloroquinacridone, 2,9-dimethylquinacridone, di(4-chlorophenyl)-DPP, di(biphenyl-1-yl)-DPP 2,9-dichloroquinacridone/di(4-chlorophenyl)-DPP solid solution and 2,9-dichloroquinacridone/unsubstituted DPP/di(4-chlorophenyl)-DPP solid solution, and the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound wherein the phenyl rings are substituted by --SO 3 H, --SO 3 M, --CH 2 N(CH 3 ) 2 or --SO 2 --NHCH 2 CH 2 CH 2 N(CH 3 ) 2 .
Claim 11
Dependent Claim
25 words
A coating composition of claim 9 wherein the small particle size pigment is 2,9-dichloroquinacridone/di(4-chlorophenyl)-DPP solid solution and the flop-enhancing agent is copper phthalocyanine monosulfonic acid.
Claim 12
Dependent Claim
137 words
A pigment composition which comprises a transparent pigment and from 0.1 to 10 percent by weight, based on the weight of the composition, of a flop-enhancing agent, which is a copper phthalocyanine, indanthrone or carbazole dioxazine compound that is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen. C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 13
Dependent Claim
137 words
A pigment composition which comprises a transparent pigment and from 0.1 to 10 percent by weight, based on the weight of the composition, of a flop-enhancing agent, which is a copper phthalocyanine, indanthrone or carbazole dioxazine compound that is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen. C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 14
Dependent Claim
113 words
A pigment composition of claim 11 wherein the flop-enhancing agent is copper phthalocyanine which is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 15
Dependent Claim
112 words
A pigment composition of claim 11 wherein the flop-enhancing agent is indanthrone which is substituted in a phenyl ring by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted by C 1 -C 4 alkyl.
Claim 16
Dependent Claim
114 words
A pigment composition of claim 11 wherein the flop-enhancing agent is a carbazole dioxazine wherein the phenyl rings are unsubstituted or substituted by one or more substituents selected from the group consisting of halogen, --SO 3 M, --SO 2 --NR 1 R 2 , C 1 -C 6 alkyl and --X--NR 1 R 2 , wherein M is hydrogen, ammonium or a metal, R 1 and R 2 are independently hydrogen, C 1 -C 6 alkyl or --X--NR 1 R 2 , and X is a C 1 -C 6 alkylene, which C 1 -C 6 alkyl and C 1 -C 6 alkylene groups are unsubstituted or further substituted C 1 C 4 alkyl.
Claim 17
Dependent Claim
52 words
A pigment composition of claim 11 wherein the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound wherein the phenyl rings are substituted by --SO 3 H, --SO 3 M, --CH 2 N(CH 3 ) 2 or --SO 2 --NHCH 2 CH 2 CH 2 N(CH 3 ) 2 .
Claim 18
Dependent Claim
22 words
A pigment composition of claim 11 wherein the transparent pigment is a 1,4-diketo-3,6-diaryl-pyrrolopyrrole, a quinacridone, a quinacridonequinone or a solid solution pigment.
Claim 19
Dependent Claim
73 words
A pigment composition of claim 11 wherein the transparent pigment is selected from the group consisting of β-quinacridone, 2,9-dimethylquinacridone, di(4-chlorophenyl)-DPP, di(biphenyl-1-yl)-DPP 2,9-dichloroquinacridone/di(4-chlorophenyl)-DPP solid solution and 2,9-dichloroquinacridone/unsubstituted DPP/di(4-chlorophenyl)-DPP solid solution, and the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound wherein the phenyl rings are substituted by --SO 3 H, --SO 3 M, --CH 1 N(CH 3 ) 2 or --SO 2 --NHCH 2 CH 2 N(CH 3 ) 2 .
Claim 20
Dependent Claim
23 words
A pigment composition of claim 17 wherein the transparent pigment is 2,9-dichloroquinacridone/di(4-chlorophenyl)-DPP solid solution and the flop-enhancing agent is copper phthalocyanine monosulfonic acid.
Claim 21
Dependent Claim
13 words
A pigment composition of claim 18 which further comprises a rheology improving agent.
Claim 22
Dependent Claim
20 words
A pigment composition of claim 19 wherein the rheology improving agent is pyrazolylmethylquinacridone, aluminum quinacridone monosulfonate or a mixture thereof.
Claim 23
Independent Claim
41 words
A method of enhancing the flop of a polymeric coating containing an effect pigment and a transparent pigment, which comprises incorporating a flop-enhancing agent into the polymeric coating, wherein the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound.
Claim 24
Independent Claim
41 words
A method of enhancing the flop of a polymeric coating containing an effect pigment and a transparent pigment, which comprises incorporating a flop-enhancing agent into the polymeric coating, wherein the flop-enhancing agent is a copper phthalocyanine, indanthrone or carbazole dioxazine compound.
Claim 25
Dependent Claim
26 words
A coating composition of claim 1 wherein the effect pigment is selected from the group consisting of coated micas, uncoated micas, aluminum flakes and graphite flakes.
References Cited (Backward Citations)
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