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1
US10185237B2
Publication/Patent Number: US10185237B2
Publication date: 2019-01-22
Application number: 14/992,603
Filing date: 2016-01-11
Abstract: An electrophotographic photoreceptor comprises a conductive support and, at least a photosensitive layer on the conductive support, wherein the photosensitive layer includes a polyarylate resin and the polyarylate resin has a repeating structure represented by formula (1), and the amount of bisphenol residues represented by formula (3) after the polyarylate resin is hydrolyzed, is 0.2% to 1%, in terms of intensity ratio, based on the total amount of bisphenol residues represented by formula (2) and formula (3) after the polyarylate resin is hydrolyzed, the bisphenol residues being detected with a gas chromatograph employing a hydrogen flame ionization detector (FID). An electrophotographic photoreceptor comprises a conductive support and, at least a photosensitive layer on the conductive support, wherein the photosensitive layer includes a polyarylate resin and the polyarylate resin has a repeating structure represented by formula (1), and ...more ...less
2
JP2017181690A
Publication/Patent Number: JP2017181690A
Publication date: 2017-10-05
Application number: 2016066777
Filing date: 2016-03-29
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that contains a binder resin having a specific structure in a photosensitive layer to have a good compatibility with a charge transport material and other resins
3
JP6123338B2
Publication/Patent Number: JP6123338B2
Publication date: 2017-05-10
Application number: 2013029214
Filing date: 2013-02-18
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that contains a binder resin having excellent abrasion resistance to a practical load
4
CN105377943B
Publication/Patent Number: CN105377943B
Publication date: 2017-05-24
Application number: 201480039463
Filing date: 2014-07-10
Abstract: An electrophotographic photoreceptor in which at least a photosensitive layer is formed on an electrically conductive support
5
JP2016161708A
Publication/Patent Number: JP2016161708A
Publication date: 2016-09-05
Application number: 2015039265
Filing date: 2015-02-27
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that contains
6
CN105377943A
Publication/Patent Number: CN105377943A
Publication date: 2016-03-02
Application number: 201480039463
Filing date: 2014-07-10
Abstract: An electrophotographic photoreceptor in which at least a photosensitive layer is formed on an electrically conductive support
7
US20160124327A1
Publication/Patent Number: US20160124327A1
Publication date: 2016-05-05
Application number: 14/992,603
Filing date: 2016-01-11
Abstract: An electrophotographic photoreceptor comprises a conductive support and, at least a photosensitive layer on the conductive support, wherein the photosensitive layer includes a polyarylate resin and the polyarylate resin has a repeating structure represented by formula (1), and the amount of bisphenol residues represented by formula (3) after the polyarylate resin is hydrolyzed, is 0.2% to 1%, in terms of intensity ratio, based on the total amount of bisphenol residues represented by formula (2) and formula (3) after the polyarylate resin is hydrolyzed, the bisphenol residues being detected with a gas chromatograph employing a hydrogen flame ionization detector (FID). An electrophotographic photoreceptor comprises a conductive support and, at least a photosensitive layer on the conductive support, wherein the photosensitive layer includes a polyarylate resin and the polyarylate resin has a repeating structure represented by formula (1), and ...more ...less
8
JP2015017224A
Publication/Patent Number: JP2015017224A
Publication date: 2015-01-29
Application number: 2013146651
Filing date: 2013-07-12
Abstract: PROBLEM TO BE SOLVED: To provide polyarylate excellent in electrical characteristics and dissolubility
9
JP2015078350A
Publication/Patent Number: JP2015078350A
Publication date: 2015-04-23
Application number: 2014184503
Filing date: 2014-09-10
Abstract: PROBLEM TO BE SOLVED: To provide a polyarylate resin excellent in electrical characteristics and solubility
10
JP5741180B2
Publication/Patent Number: JP5741180B2
Publication date: 2015-07-01
Application number: 2011096325
Filing date: 2011-04-22
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that contains a binder resin having excellent wear resistance against load in practical use
11
WO2015005442A1
Publication/Patent Number: WO2015005442A1
Publication date: 2015-01-15
Application number: 2014068484
Filing date: 2014-07-10
Abstract: An electrophotographic photoreceptor in which at least a photosensitive layer is formed on an electrically conductive support
12
JP2015092238A
Publication/Patent Number: JP2015092238A
Publication date: 2015-05-14
Application number: 2014201659
Filing date: 2014-09-30
Abstract: PROBLEM TO BE SOLVED: To provide: an electrophotographic photoreceptor excellent in electrical properties and image characteristics when repeatedly used; an electrophotography using the electrophotographic photoreceptor; and an image forming device.SOLUTION: A lamination type electrophotographic photoreceptor has a charge generating layer containing a hydroxy gallium phthalocyanine and a charge transport layer containing a poly arylate resin on a conductive support. The amount of a bisphenol residue having a specific structure detected by a gas chromatograph using a hydrogen flame ionization type detector (FID) after hydrolyzing the poly arylate resin having the repeated structure of a specific structure is an intensity ratio of 0.2% or more and 1% or less to the total amount of the bisphenol residue. PROBLEM TO BE SOLVED: To provide: an electrophotographic photoreceptor excellent in electrical properties and image characteristics when repeatedly used; an electrophotography using the electrophotographic photoreceptor; and an image forming device.SOLUTION: A lamination type ...more ...less
13
JP5527467B2
Publication/Patent Number: JP5527467B2
Publication date: 2014-06-18
Application number: 2013167930
Filing date: 2013-08-12
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor excellent in abrasion resistance properties and electrical characteristics.SOLUTION: An electrophotographic photoreceptor includes a conductive substrate
14
JP2014157337A
Publication/Patent Number: JP2014157337A
Publication date: 2014-08-28
Application number: 2013029214
Filing date: 2013-02-18
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that contains a binder resin having excellent abrasion resistance to a practical load
15
JP2014209221A
Publication/Patent Number: JP2014209221A
Publication date: 2014-11-06
Application number: 2014060710
Filing date: 2014-03-24
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that prevents the occurrence of separation of layers and a layer from a substrate by solving the problem in which: when a photosensitive layer contains a polyarylate resin
16
JP2014002401A
Publication/Patent Number: JP2014002401A
Publication date: 2014-01-09
Application number: 2013167930
Filing date: 2013-08-12
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor excellent in abrasion resistance properties and electrical characteristics.SOLUTION: An electrophotographic photoreceptor includes a conductive substrate
17
EP2154575B1
Publication/Patent Number: EP2154575B1
Publication date: 2014-12-24
Application number: 09014177.1
Filing date: 2005-07-15
Abstract: Disclosed is an electrophotographic photoreceptor which is excellent in wear resistance and electrical characteristics. Specifically disclosed is an electrophotographic photoreceptor containing a polyester resin in a photosensitive layer provided on an electroconductive substrate. The polyester resin is composed of a copolymer of formula (5). wherein {a/(a+b)}>0.7, A is: (wherein Ra 1 and Ra 2 represents a hydrogen atom or a monovalent substituent which may have a substituent, and n and m is from 0 to 4.), F is: (wherein X 2 represents a single bond or a bivalent group; each of R 7 and R 8 represents a hydrogen atom, an alkyl group, an aryl group, a halogen group, or an alkoxy group; and k and 1 are from 1 to 4.), and G is: (wherein x 3 represents a bivalent group.) Disclosed is an electrophotographic photoreceptor which is excellent in wear resistance and electrical characteristics. Specifically disclosed is an electrophotographic photoreceptor containing a polyester resin in a photosensitive layer provided on an electroconductive ...more ...less
18
JP5593818B2
Publication/Patent Number: JP5593818B2
Publication date: 2014-09-24
Application number: 2010106935
Filing date: 2010-05-07
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is superior in wear resistance and surface sliding properties while excellently holding electrical characteristics such as response.SOLUTION: The electrophotographic photoreceptor includes a photosensitive layer on a conductive substrate. In the photosensitive layer PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is superior in wear resistance and surface sliding properties while excellently holding electrical characteristics such as response.SOLUTION: The electrophotographic photoreceptor includes a ...more ...less
19
JP5593817B2
Publication/Patent Number: JP5593817B2
Publication date: 2014-09-24
Application number: 2010106934
Filing date: 2010-05-07
Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is superior in wear resistance and surface sliding properties while excellently holding electrical characteristics such as response.SOLUTION: The electrophotographic photoreceptor includes a photosensitive layer on a conductive substrate. In the photosensitive layer PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which is superior in wear resistance and surface sliding properties while excellently holding electrical characteristics such as response.SOLUTION: The electrophotographic photoreceptor includes a ...more ...less
20
JP5522090B2
Publication/Patent Number: JP5522090B2
Publication date: 2014-06-18
Application number: 2011046429
Filing date: 2011-03-03
Abstract: PROBLEM TO BE SOLVED: To provide a high-performance photoreceptor using a polycarbonate resin having a specific structure manufactured using a fusion method