Patents by Inventor Ruth Pegington
Ruth Pegington has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20180037812Abstract: A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer, wherein the polymer has an anisotropy of no more than 0.8 and wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone.Type: ApplicationFiled: February 18, 2016Publication date: February 8, 2018Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Michael Cass, David Mohamad, Matthew Roberts, William Tarran, Martin Humphries
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Patent number: 9859499Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): (I) wherein each Ar1 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Ar2 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; n and m in each occurrence is at least 1; and R1 and R2 are substituents wherein R1 and R2 are different.Type: GrantFiled: January 16, 2013Date of Patent: January 2, 2018Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Patent number: 9859498Abstract: An OLED comprising a hole-transporting layer and light-emitting layer wherein the hole-transporting layer comprises a hole-transporting polymer wherein no more than 5% of the polystyrene equivalent polymer weight measured by gel permeation chromatography consists of chains with weight of less than 50,000.Type: GrantFiled: October 21, 2015Date of Patent: January 2, 2018Assignees: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Martin Humphries
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Publication number: 20170288163Abstract: A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.Type: ApplicationFiled: August 28, 2015Publication date: October 5, 2017Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Martina Pintani, Ian Johnson, Francesco Di Stasio, Martin Humphries, Jonathan Pillow, Ruth Pegington, James Morey
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Publication number: 20170207393Abstract: A composition comprising a first material substituted with at least one group of formula (I) and a second material substituted with at least one group selected from groups of formulae (IIa) and (IIb): wherein: Sp1 and Sp2 are spacer groups; NB independently in each occurrence is a norbornene group that may be unsubstituted or substituted with one or more substituents; n1 and n2 are 0 or 1; m1 is 1 if n1 is 0 and m1 is at least 1 if n1 is 1; m2 is 1 if n2 is 0 and m2 is at least 1 if n2 is 1; Ar1 represents an aryl or heteroaryl group; R1 independently in each occurrence is H or a substituent; and * represents a point of attachment to the first or second material. The composition may be used to form a layer of an organic electronic device, for example the hole-transporting layer of an organic light-emitting device.Type: ApplicationFiled: July 8, 2015Publication date: July 20, 2017Applicants: Cambridge Display Technology Limited, Sumitomo Chemical CompanyInventors: Jonathan Pillow, Martin Humphries, Ruth Pegington, Florence Bourcet, Yonek Hleba, Thomas Kugler, Sheena Zuberi
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Publication number: 20170145160Abstract: Methods of metal-catalysed polymerisation are described using a metal catalyst of formula (III): wherein R3 in each occurrence is independently selected from C1-10 alkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Z?is an anion. Methods described include Buchwald-type and Suzuki-type polymerisation.Type: ApplicationFiled: February 8, 2017Publication date: May 25, 2017Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: FLORENCE BOURCET, Kiran Kamtekar, Ruth Pegington, James Morey
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Patent number: 9598539Abstract: Methods of metal-catalyzed polymerization are described using a metal catalyst of formula (III): wherein R3 in each occurrence is independently selected from C1-10alkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Z? is an anion. Methods described include Buchwald-type and Suzuki-type polymerization.Type: GrantFiled: November 28, 2013Date of Patent: March 21, 2017Assignees: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Florence Bourcet, Kiran Kamtekar, Ruth Pegington, James Morey
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Publication number: 20160336514Abstract: A block copolymer comprising a first block and a second block wherein the first block comprises a repeat unit of formula (I) and the second block comprises a repeat unit of formula (II): wherein R1 and R2 are independently H or a substituent; R3 independently in each occurrence is a substituent; each n is independently 0, 1, 2 or 3; Ar8, Ar9 and Ar10 independently in each occurrence is an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R13 independently in each occurrence is a substituent; c, d and e are each independently at least 1; and g is 0 or a positive integer. The block copolymer may be used as a light-emitting material in an organic light-emitting device.Type: ApplicationFiled: May 12, 2016Publication date: November 17, 2016Applicants: Cambridge Display Technology Limited, Sumitomo Chemical Company LimitedInventors: Ruth Pegington, Martin Humphries
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Publication number: 20160126461Abstract: An OLED comprising a hole-transporting layer and light-emitting layer wherein the hole-transporting layer comprises a hole-transporting polymer wherein no more than 5% of the polystyrene equivalent polymer weight measured by gel permeation chromatography consists of chains with weight of less than 50,000.Type: ApplicationFiled: October 21, 2015Publication date: May 5, 2016Applicants: Sumitomo Chemical Company Limited, Cambridge Display Technology LimitedInventors: Ruth Pegington, Martin Humphries
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Publication number: 20150333262Abstract: A copolymer comprising a repeat unit of Formula (I) and at least one further repeat unit: Formula (I) wherein: wherein: Ar1 and Ar2 are each independently selected from aryl and heteroaryl, each of which is independently unsubstituted or substituted with one or more substituents; each R is independently a substituent; each n is independently 0, 1 or 2; each m is independently 0, 1, 2 or 3, and at least one of the repeat units of the polymer is a partially conjugating repeat unit.Type: ApplicationFiled: December 23, 2013Publication date: November 19, 2015Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, SUMITOMO CHEMICAL COMPANY LIMITEDInventors: Philip Stackhouse, Sophie Barbara Heidenhain, Ruth Pegington, Jonathan Pillow, Martin Humphries, Tomoyasu Yoshida
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Publication number: 20150315338Abstract: Methods of metal-catalysed polymerisation are described using a metal catalyst of formula (III): wherein R3 in each occurrence is independently selected from C1-10alkyl and aryl that may be unsubstituted or substituted with one or more substituents; y is 0 or 2; and Z? is an anion. Methods described include Buchwald-type and Suzuki-type polymerisation.Type: ApplicationFiled: November 28, 2013Publication date: November 5, 2015Inventors: Florence Bourcet, Kiran Kamtekar, Ruth Pegington, James Morey
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Publication number: 20150115204Abstract: A polymer compound is provided having constitutional units of formula (1) and formula (2), and a constitutional unit of formula (3) and/or (4?): wherein Ar1 to Ar4, Ar20, Ar30? and Ar40 represent arylene groups or the like; Ar5 to Ar7 represent aryl groups or the like; Ar8 represents (2+p)-valent aromatic hydrocarbon group or the like; Ar10 represents (2+n)-valent aromatic hydrocarbon group or the like; R1 represents alkyl group or the like; La, Lb, Lg and Lh represent alkylene groups or the like; LA and LD represent oxygen atoms or the like; Q1 represents monovalent crosslinkable group; Q2? to Q4? represent monovalent crosslinkable groups or the like; x, y, c, nA and nD represent 0 or 1; p represents integer of 1 or greater.; na and ng represent integer of 0 to 3; nb and nh represent integer of 0 to 12; and n represents integer of 1 to 4.Type: ApplicationFiled: March 26, 2013Publication date: April 30, 2015Applicants: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED, SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Chizu Sekine, Satoshi Mikami, Makoto Anryu, Hidenobu Kakimoto, Annette Regine Steudel, Martin John Humphries, Kiran Timothy Kamtekar, Elena Hojas Garcia, Sophie Heidenhain, Ruth Pegington
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Publication number: 20150060798Abstract: An organic electronic device comprising an anode, a cathode, a semiconducting layer between the anode and the cathode and a hole transporting layer between the anode and the semiconducting layer, the hole-transporting layer comprising a co-polymer comprising repeat units of formula (I) and one or more co-repeat units: (I) wherein: Ar1 independently in each occurrence represents a fused aryl or fused heteroaryl group that may be unsubstituted or substituted with one or more substituents; Ar2 represents an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R independently in each occurrence represents a substituent; and m is 1 or 2, preferably 1; and each Ar1 is directly bound to an aromatic or heteroaromatic group of a co-repeat unit.Type: ApplicationFiled: January 16, 2013Publication date: March 5, 2015Inventors: Jonathan Pillow, Richard J. Wilson, Sophie Barbara Heidenhain, Ruth Pegington, Alexander Doust, Richard Owoare
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Publication number: 20140353652Abstract: A polymer comprising one or more optionally substituted repeat units of formula (I): (I) wherein each Ar1 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; each Ar2 independently represents a substituted or unsubstituted aromatic or heteroaromatic group; n and m in each occurrence is at least 1; and R1 and R2 are substituents wherein R1 and R2 are different.Type: ApplicationFiled: January 16, 2013Publication date: December 4, 2014Inventors: Ruth Pegington, Sophie Barbara Heidenhain, Mary J. McKiernan
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Publication number: 20130187145Abstract: Composition comprising a fluorescent light-emitting material and a triplet-accepting unit comprising an optionally substituted compound of formula (I): The composition may be used in an organic light-emitting device; the optionally substituted compound of formula (I) may be blended with or attached to the fluorescent light emitting material; and the composition may be deposited by solution deposition.Type: ApplicationFiled: June 24, 2011Publication date: July 25, 2013Applicants: SUMITOMO CHEMICAL COMPANY LIMITED, CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Ruth Pegington, Martina Pintani, Jonathan Pillow