Patents by Inventor Stephen Mulcahy
Stephen Mulcahy 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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Patent number: 11851600Abstract: An optical component and a electro optical devices comprising the optical component. Further, a cholesteric polymerizable liquid crystalline (LC) material, preferably utilized in an optical component in accordance with the present invention, a process for the production of the cholesteric polymerizable LC material, a process to convert the cholesteric polymerizable material into a polymer film, a polymer film obtainable from the cholesteric polymerizable LC material, and the use of the polymer films in an optical component or device comprising a polymer film.Type: GrantFiled: November 18, 2021Date of Patent: December 26, 2023Assignee: Merck Patent GmbHInventors: Stephen Mulcahy, Owain Llyr Parri
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Publication number: 20230340329Abstract: The invention relates to a polymerizable LC material comprising one or more reactive mesogenic compounds, one or more chiral compounds and one or more compounds of formula I, wherein the individual radicals have one of the meaning as given in the claims. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal and UV stability obtainable from a corresponding polymerizable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerizable LC material in optical, electro-optical, decorative or security devices.Type: ApplicationFiled: September 23, 2021Publication date: October 26, 2023Applicant: Merck Patent GmbHInventors: Stephen MULCAHY, Owain Llyr PARRI, Sarabjot KAUR
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Patent number: 11795399Abstract: Suggested are new adhesion promoters, which are particular suitable for use in displays. Its inclusion in the polymerisable LC mixture results in an excellent adhesion on substrate without colouration over time i.e. compared to amino siloxanes. The new additives have no effect on alignment of LC on the substrate while improving the adhesion.Type: GrantFiled: September 4, 2017Date of Patent: October 24, 2023Assignee: MERCK PATENT GMBHInventors: Hassan Arasi, Kevin Adlem, Stephen Mulcahy, Iain Gardiner
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Publication number: 20230265344Abstract: The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula I, in which the parameter R1, A1, Z1, Z2, n, Sp, P, p1, p2, L1, L2, r1, r2, m and R2 have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for the preparation of a polymerisable LC material, a polymer film obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: ApplicationFiled: July 1, 2021Publication date: August 24, 2023Applicant: MERCK PATENT GMBHInventors: Stephen MULCAHY, Iain GARDINER
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Patent number: 11718790Abstract: The present invention relates to a method for the preparation of a homogeneous aligned liquid crystal polymer film, a polymer film obtainable from the corresponding method of production, and to the use of such polymer film for optical components and electro-optical decorative, as well as to components and devices comprising such polymer film.Type: GrantFiled: January 20, 2020Date of Patent: August 8, 2023Assignee: Merck Patent GmbHInventors: Stephen Mulcahy, Eduardo Beltran Gracia, Owain Parri, Vicki Poole, James Allen, Kevin Adlem, Hassan Arasi
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Patent number: 11697769Abstract: A polymerizable LC material comprising one or more reactive mesogenic compounds, one or more chiral compounds and a block copolymer that comprises at least one polyfluorooxetane block bonded to a polyether block, said polyfluorooxetane block having a repeating unit of the formula Further, a method for its preparation, a polymer film obtainable from a corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material in optical, electro-optical, decorative or security devices.Type: GrantFiled: December 3, 2021Date of Patent: July 11, 2023Assignee: Merck Patent GmbHInventors: Stephen Mulcahy, Owain Llyr Parri, Sarabjot Kaur
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Publication number: 20220348827Abstract: The present invention relates to a cholesteric liquid crystalline (LC) medium for a Polymer-Network Liquid Crystalline (PNLC) light modulation element, to a method of its production and to the use of such cholesteric LC media in PNLC light modulation elements. Furthermore, the present invention relates to PNLC light modulation elements, as such, to a method of their production, to the use of such light modulation elements in optic or electro optic devices, in particular in LC displays, and to optic or electro optic devices comprising such light modulation elements according to the present invention.Type: ApplicationFiled: September 8, 2020Publication date: November 3, 2022Applicant: Merck Patent GmbHInventors: Stephen MULCAHY, Eduardo BELTRAN GRACIA
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Publication number: 20220177782Abstract: A polymerizable LC material comprising one or more reactive mesogenic compounds, one or more chiral compounds and a block copolymer that comprises at least one polyfluorooxetane block bonded to a polyether block, said polyfluorooxetane block having a repeating unit of the formula Further, a method for its preparation, a polymer film obtainable from a corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material in optical, electro-optical, decorative or security devices.Type: ApplicationFiled: December 3, 2021Publication date: June 9, 2022Applicant: Merck Patent GmbHInventors: Stephen Mulcahy, Owain Llyr Parri, Sarabjot Kaur
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Publication number: 20220162505Abstract: An optical component and a electro optical devices comprising the optical component. Further, a cholesteric polymerizable liquid crystalline (LC) material, preferably utilized in an optical component in accordance with the present invention, a process for the production of the cholesteric polymerizable LC material, a process to convert the cholesteric polymerizable material into a polymer film, a polymer film obtainable from the cholesteric polymerizable LC material, and the use of the polymer films in an optical component or device comprising a polymer film.Type: ApplicationFiled: November 18, 2021Publication date: May 26, 2022Applicant: Merck Patent GmbHInventors: Stephen Mulcahy, Owain Llyr Parri
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Publication number: 20220119712Abstract: The present invention relates to a method for the preparation of a homogeneous aligned liquid crystal polymer film, a polymer film obtainable from the corresponding method of production, and to the use of such polymer film for optical components and electro-optical decorative, as well as to components and devices comprising such polymer film.Type: ApplicationFiled: January 20, 2020Publication date: April 21, 2022Applicant: Merck Patent GmbHInventors: Stephen MULCAHY, Eduardo BELTRAN GRACIA, Owain PARRI, Vicki POOLE, James ALLEN, Kevin ADLEM, Hassan ARASI
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Publication number: 20220056340Abstract: The present invention relates to polymerizable liquid crystalline formulations and especially to an ink formulation for inkjet printing comprising 10 to 50% w/w of one or more polymerizable liquid crystalline compounds and 50 to 90% w/w of one or more organic solvents selected from the group of aliphatic ketones, cyclic ketones, alkyl ethers of ethylene glycol or propylene glycol, alkyl esters of menthyl or aromatic solvents.Type: ApplicationFiled: December 9, 2019Publication date: February 24, 2022Applicant: MERCK PATENT GMBHInventors: Eduardo Beltran GRACIA, Stephen MULCAHY, Daniel WALKER
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Patent number: 11248171Abstract: The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.Type: GrantFiled: November 28, 2017Date of Patent: February 15, 2022Assignee: Merck Patent GmbHInventors: Eduardo Beltran Gracia, Iain Gardiner, Rebecca Proctor, Stephen Mulcahy
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Patent number: 11118112Abstract: Compounds of formula I, (R11O)sSi(CH3)3?s-Sp11-NR12-Sp12-C(OR13)tH3?t??I wherein the variable groups are as defined herein are useful as adhesion promotors in polymerizable liquid crystal (LC) material.Type: GrantFiled: June 6, 2016Date of Patent: September 14, 2021Assignee: Merck Patent GmbHInventors: Kevin Adlem, Iain Gardiner, Jack Bradford, Stephen Mulcahy, James Allen
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Publication number: 20200291299Abstract: The invention relates to a polymerisable LC material comprising at least one monoreactive mesogenic compound, at least one di- or multireactive mesogenic compound and pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate). Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: ApplicationFiled: February 7, 2017Publication date: September 17, 2020Applicant: MERCK PATENT GMBHInventors: Stephen MULCAHY, lain GARDINER, Jack BRADFORD
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Publication number: 20200255736Abstract: The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula CO-1, wherein L31, L32, A31, and R31 have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: ApplicationFiled: May 15, 2017Publication date: August 13, 2020Applicant: MERCK PATENT GMBHInventors: Stephen MULCAHY, Iain GARDINER
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Publication number: 20200071618Abstract: The invention relates to a polymerisable LC material comprising one or more direactive mesogenic compounds selected from the group of compounds of formula I, and one or more monoreactive mesogenic compounds selected from the group of compounds of formula II, wherein the parameter A11, P11 to P21, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: ApplicationFiled: November 28, 2017Publication date: March 5, 2020Applicant: MERCK PATENT GMBHInventors: Eduardo BELTRAN GRACIA, Iain GARDINER, Rebecca PROCTOR, Stephen MULCAHY
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Publication number: 20200024519Abstract: The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.Type: ApplicationFiled: November 28, 2017Publication date: January 23, 2020Applicant: Merck Patent GmbHInventors: Eduardo BELTRAN GRACIA, Iain GARDINER, Rebecca PROCTOR, Stephen MULCAHY
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Publication number: 20190359889Abstract: The invention relates to a polymerisable LC material comprising at least one di- or multireactive mesogenic compound and at least one compound of formula I, in which the parameter R1, A1, Z2, Sp, P, p1, p2, L1, L2, r1, r2 and Ra have one of the meanings as given in claim 1 and to a compound of formula 1, as such. Furthermore, the present invention relates also to a method for the preparation of a polymerisable LC material, a polymer film obtainable from the corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electro-optical, decorative or security devices.Type: ApplicationFiled: September 12, 2017Publication date: November 28, 2019Applicant: MERCK PATENT GMBHInventors: Stephen MULCAHY, Iain GARDINER, Helmut HAENSEL, Graziano ARCHETTI
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Patent number: 10358600Abstract: A polymerizable LC material comprising at least one di- or multireactive mesogenic compound selected from the group of compounds of formula I, at least one monoreactive mesogenic compound selected from the group of compounds of formula II, wherein the parameter A11 to A21, L21, p, P11 to P22, R21, Sp11 to Sp21, X11 to X21, and Z11 to Z21 have one of the meanings as given in claim 1, and at least one carbazole oxime ester photoinitiator. Furthermore, a method for preparation of the polymerizable LC material, a polymer film with improved thermal durability obtainable from the corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material for optical, electro-optical, decorative or security devices.Type: GrantFiled: May 16, 2017Date of Patent: July 23, 2019Assignee: Merck Patent GmbHInventors: Stephen Mulcahy, Iain Gardiner, Jack Bradford, Eduardo Beltran Gracia, Graham Smith
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Publication number: 20180195004Abstract: The invention relates to compounds of formula I, (R11O)sSi(CH3)3-s-Sp11-NR12-Sp12-C(OR13)tH3-t ??I wherein the parameter are defined in claim 1, a method for their preparation, to the use of compounds of formula I as adhesion promotors in polymerisable liquid crystal (LC) material, to a polymer film comprising a polymerised material with improved adhesion to a substrate, to methods for preparing such a polymer film, to a corresponding polymerisable LC material used for the preparation of such a polymer film, and to the use of the polymer film and said polymerisable LC material for optical, electrooptical, decorative or security uses and devices.Type: ApplicationFiled: June 6, 2016Publication date: July 12, 2018Applicant: Merck Patent GmbHInventors: Kevin ADLEM, Iain GARDINER, Jack BRADFORD, Stephen MULCAHY, James ALLEN