Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
16 words
An α-type titanyl phthalocyanine composition, characterized by comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 2
Dependent Claim
16 words
An α-type titanyl phthalocyanine composition, characterized by comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 3
Dependent Claim
43 words
A α-type titanyl phthalocyanine composition according to Claim 1, wherein the content of said -type titanyl phthalocyanine is in the range of 60 to 90% by weight and the content of said metal-free phthalocyanine in the range of 10 to 40% by weight.
Claim 4
Dependent Claim
46 words
An α-type titanyl phthalocyanine composition according to Claim 1, wherein said α-type titanyl phthalocyanine shows strong diffraction peaks at Bragg angles 6.9°, 9.6°, 15.6°, 17.6°, 21.9°, 23.6°, 27.7°, and 28.0° and the strongest diffraction peak at Bragg angle 6.9° among others in an X-ray diffraction spectrum.
Claim 5
Dependent Claim
20 words
An α-type titanyl phthalocyanine composition according to Claim 1, which has undergone a surface treatment with a silane coupling agent.
Claim 6
Independent Claim
56 words
A method for the production of an α-type titanyl phthalocyanine composition, which comprises converting titanyl phthalocyanine into a pigment by the acid paste process consisting in pouring into cold water a concentrated sulfuric acid solution containing at least titanyl phthalocyanine thereby producing an α-type titanyl phthalocyanine composition comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 7
Independent Claim
56 words
A method for the production of an α-type titanyl phthalocyanine composition, which comprises converting titanyl phthalocyanine into a pigment by the acid paste process consisting in pouring into cold water a concentrated sulfuric acid solution containing at least titanyl phthalocyanine thereby producing an α-type titanyl phthalocyanine composition comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 8
Dependent Claim
28 words
A method according to Claim 5, wherein the temperature at which said concentrated sulfuric acid solution is poured into water is in the range of -5° to 40°C.
Claim 9
Dependent Claim
61 words
A method according to Claim 6, wherein said concentrated sulfuric acid solution is prepared by using a concentrated sulfuric acid of a concentration in the range of 92 to 105% in an amount not less than 15 times the amount of titanyl phthalocyanine and said concentrated sulfuric acid solution is kept at a temperature in the range of 0 to 40°C.
Claim 10
Dependent Claim
29 words
A method according to Claim 5, wherein said pigmentation of said concentrated sulfuric acid solution is carried out by wet milling in the presence of a chlorine type solvent.
Claim 11
Dependent Claim
22 words
A method according to Claim 5, wherein said α-type titanyl phthalocyanine composition is given a surface treatment with a silane coupling agent.
Claim 12
Dependent Claim
18 words
A method according to Claim 9, wherein said silane coupling agent is an epoxy type silane coupling agent.
Claim 13
Dependent Claim
22 words
An electrophotographic sensitive material, having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 14
Dependent Claim
22 words
An electrophotographic sensitive material, having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine.
Claim 15
Dependent Claim
42 words
An electrophotographic sensitive material according to Claim 11, wherein the content of said α-type titanyl phthalocyanine is in the range of 60 to 90% by weight and the content of said metal-free phthalocyanine in the range of 10 to 40% by weight.
Claim 16
Dependent Claim
38 words
An electrophotographic sensitive material according to Claim 11, wherein said sensitive layer comprises an electric charge generating layer and an electric charge transfer layer and said electric charge generating layer contains said α-type titanyl phthalocyanine and metal-free phthalocyanine.
Claim 17
Dependent Claim
19 words
An electrophotographic sensitive material according to Claim 11, which has undergone a surface treatment with a silane coupling agent.
Claim 18
Dependent Claim
37 words
An electrophotographic sensitive material, having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine composition and an electric charge transferring material possessing an oxidation potential in the range of 0.45 to 0.65 eV.
Claim 19
Dependent Claim
37 words
An electrophotographic sensitive material, having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine composition and an electric charge transferring material possessing an oxidation potential in the range of 0.45 to 0.65 eV.
Claim 20
Dependent Claim
50 words
An electrophotographic sensitive material according to Claim 15, wherein said sensitive layer compresses an electric charge generating layer and an electric charge transfer layer, said electric generating layer contains said α-type titanyl phthalocyanine composition, and said electric charge transfer layer contains an electric charge transferring material possessing said oxidation potential.
Claim 21
Dependent Claim
29 words
An electrophotographic sensitive material according to Claim 15, wherein said sensitive layer has said α-type titanyl phthalocyanine composition and said electric charge transferring material dispersed in a binding resin.
Claim 22
Dependent Claim
33 words
An electrophotographic sensitive material according to Claim 15, wherein said α-type titanyl phthalocyanine composition comprises 60 to 90% by weight of α-type titanyl phthalocyanine and 10 to 40% by weight of metal-free phthalocyanine.
Claim 23
Dependent Claim
46 words
An electrophotographic sensitive material according to Claim 15, wherein said α-type titanyl phthalocyanine composition shows strong diffraction peaks at Bragg angles 6.9°, 9.6°, 15.6°, 17.6°, 21.9°, 23.6°, 27.7°, and 28.0° and the strongest diffraction peak at Bragg angle 6.9° among others in an X-ray diffraction spectrum.