Patents Assigned to Sericol Limited
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Patent number: 11512211Abstract: This invention provides an inkjet ink comprising: an ?,?-unsaturated ether monomer in which the only radiation-curable functional groups present in the monomer are ?,?-unsaturated ether groups; a tri- or higher functionality (meth)acrylate monomer in which the only radiation-curable functional groups present in the monomer are acrylate groups; and a colouring agent; wherein the ink contains less than 5% by weight of water and volatile organic solvents in total, and less than 10% by weight of mono- and di-functional monomers in total, other than the ?,?-unsaturated ether monomer, where the amounts by weight are based on the total weight of the ink, and wherein the ink has a viscosity of less than 100 mPas at 25° C. The ink is particularly suitable for printing onto food packaging.Type: GrantFiled: November 21, 2018Date of Patent: November 29, 2022Assignee: SERICOL LIMITEDInventors: Kevin Burns, Carole Noutary, Scott Biggs
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Patent number: 10538680Abstract: This invention provides an inkjet ink comprising: an ?,?-unsaturated ether monomer in which the only radiation-curable functional groups present in the monomer are ?,?-unsaturated ether groups; a tri- or higher functionality (meth)acrylate monomer in which the only radiation-curable functional groups present in the monomer are acrylate groups; and a colouring agent; wherein the ink contains less than 5% by weight of water and volatile organic solvents in total, and less than 10% by weight of mono-and di-functional monomers in total, other than the ?,?-unsaturated ether monomer, where the amounts by weight are based on the total weight of the ink, and wherein the ink has a viscosity of less than 100 mPas at 25° C. The ink is particularly suitable for printing onto food packaging.Type: GrantFiled: July 14, 2014Date of Patent: January 21, 2020Assignee: Sericol LimitedInventors: Kevin Burns, Carole Noutary, Scott Biggs
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Patent number: 10364362Abstract: A radiation-curable ink comprising (i) a colorant; (ii) a cyclohexyl acrylate of the Formula (1) wherein each R independently is C1-4-alkyl; n has a value of 1, 2 or 3; and Q is H or CH3; (iii) a monoacrylate which comprises a cyclohexyl and/or cyclopentyl ring; and (iv) 0 to 5 wt % of N-vinyl caprolactam; and (v) cyclic trimethylolpropane formal acrylate.Type: GrantFiled: May 11, 2015Date of Patent: July 30, 2019Assignee: Sericol LimitedInventors: Bridgette Blaskett, Carole Noutary, Sean Slater
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Patent number: 9573389Abstract: The present invention provides a method of inkjet printing comprising the following steps, in order: (i) providing a hybrid inkjet ink comprising an organic solvent, a radiation-curable material, a photoinitiator and optionally a colorant; (ii) printing the ink on to a substrate; (iii) pinning the ink by exposing the ink to actinic radiation at a dose of 1-200 mJ/cm2; (iv) evaporating at least a portion of the solvent from the ink; and (v) exposing the ink to additional actinic radiation to cure the ink.Type: GrantFiled: February 14, 2012Date of Patent: February 21, 2017Assignee: Sericol LimitedInventors: Nigel Gould, Jeremy Ward, Robert Augustus Fassam, Barry McGregor
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Patent number: 9447302Abstract: The present invention provides a colorless inkjet ink composition comprising at least 30% by weight of monofunctional acrylate monomer based on the total weight of the ink and at least 3% by weight of a photoinitiator based on the total weight of the ink, wherein the photoinitiator comprises an ?-hydroxy ketone photoinitiator and wherein the ink comprises 0 to 6% by weight of acyl phosphine photoinitiator based on the total weight of the ink.Type: GrantFiled: September 3, 2010Date of Patent: September 20, 2016Assignee: Sericol LimitedInventors: Yuuichi Hayata, Brian Woolrich, Vincent Wright
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Patent number: 9073358Abstract: The present invention provides an inkjet ink including at least 50% by weight of organic solvent based on the total weight of the ink, a radiation curable material, a photoinitiator and a colorant. The invention also provides an apparatus for printing the ink wherein the apparatus includes at least one printhead, a means for evaporating solvent from the printed ink and a source of actinic radiation. Furthermore, the invention provides a method of inkjet printing including i) inkjet printing the inkjet ink as defined above on to a substrate; ii) evaporating at least a portion of the solvent from the printed ink; and iii) exposing the printed ink to actinic radiation to cure the radiation curable material.Type: GrantFiled: June 30, 2014Date of Patent: July 7, 2015Assignee: SERICOL LIMITEDInventors: Robert Augustus Fassam, Nigel Gould, Jeremy Ward, Barry McGregor
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Patent number: 8975307Abstract: The present invention provides a method comprising: applying a UV-curable ink to a substrate; partially curing the ink by exposing the ink to UV radiation from an LED source; and exposing the partially cured ink to UV radiation from a flash lamp. The flash lamp is a xenon or krypton flash lamp. An apparatus for performing the method and an ink adapted for use in the method are also provided.Type: GrantFiled: June 25, 2010Date of Patent: March 10, 2015Assignee: Sericol LimitedInventors: Nigel Gould, Barry Michael McGregor
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Patent number: 8952078Abstract: This invention relates to a printing ink and in particular to an ink for ink-jet printing which is cured by irradiation. The ink comprises at least one radiation-curable monomer; at least one passive thermoplastic resin; at least one radical photoinitiator; and at least one colouring agent; wherein the ink has a viscosity of less than 100 mPas at 25° C., and wherein the at least one passive resin is present at 2 to 15 wt % based on the total weight of the ink and has a molecular weight of 1,500 to 70,000.Type: GrantFiled: July 4, 2007Date of Patent: February 10, 2015Assignee: Sericol LimitedInventor: Nigel Paul Gould
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Patent number: 8911853Abstract: The present invention provides an inkjet ink comprising 5 to 30% by weight of organic solvent based on the total weight of the ink, a radiation curable monofunctional monomer, a radiation curable multifunctional monomer, a photoinitiator and a colourant.Type: GrantFiled: August 20, 2010Date of Patent: December 16, 2014Assignee: Sericol LimitedInventors: Carole Noutary, Jeremy Ward
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Publication number: 20140347429Abstract: An ink comprising a colorant, an organic solvent having a boiling point below 170° C. and a radiation-curable component of molecular weight >1000, wherein the ink contains less than 10 wt % of radiation-curable components of molecular weight 1000 or less and the ink contains less than 5 wt % water. The ink is particularly useful for printing packaging used for products intended for ingestion by humans or other animals.Type: ApplicationFiled: December 4, 2012Publication date: November 27, 2014Applicant: Sericol LimitedInventor: Nigel Gould
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Publication number: 20140313267Abstract: The present invention provides an inkjet ink comprising at least 30% by weight of organic solvent based on the total weight of the ink, a radiation curable material, a photoinitiator and optionally a colourant. The invention also provides an apparatus for printing the ink wherein the apparatus comprises at least one printhead, a means for evaporating solvent from the printed ink and a source of actinic radiation. Furthermore, the invention provides a method of inkjet printing comprising i) inkjet printing the inkjet ink as defined above on to a substrate; ii) evaporating at least a portion of the solvent from the printed ink; and iii) exposing the printed ink to actinic radiation to cure the radiation curable material.Type: ApplicationFiled: June 30, 2014Publication date: October 23, 2014Applicant: SERICOL LIMITEDInventors: Robert Augustus Fassam, Nigel Gould, Jeremy Ward, Barry McGregor
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Patent number: 8801165Abstract: The present invention provides an inkjet ink comprising at least 30% by weight of organic solvent based on the total weight of the ink, a radiation curable material, a photoinitiator and optionally a colorant. The invention also provides an apparatus for printing the ink wherein the apparatus comprises at least one printhead, a means for evaporating solvent from the printed ink and a source of actinic radiation. Furthermore, the invention provides a method of inkjet printing comprising i) inkjet printing the inkjet ink as defined above on to a substrate; ii) evaporating at least a portion of the solvent from the printed ink; and iii) exposing the printed ink to actinic radiation to cure the radiation curable material.Type: GrantFiled: August 20, 2010Date of Patent: August 12, 2014Assignee: Sericol LimitedInventors: Robert Augustus Fassam, Nigel Gould, Jeremy Ward, Barry McGregor
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Publication number: 20140063154Abstract: The present invention provides a method of inkjet printing comprising the following steps, in order: (i) providing a hybrid inkjet ink comprising an organic solvent, a radiation-curable material, a photoinitiator and optionally a colorant; (ii) printing the ink on to a substrate; (iii) pinning the ink by exposing the ink to actinic radiation at a dose of 1-200 mJ/cm2; (iv) evaporating at least a portion of the solvent from the ink; and (v) exposing the ink to additional actinic radiation to cure the ink.Type: ApplicationFiled: February 14, 2012Publication date: March 6, 2014Applicant: SERICOL LIMITEDInventors: Nigel Gould, Jeremy Ward, Robert Augustus Fassam, Barry McGregor
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Publication number: 20130127963Abstract: This invention relates to a radiation-curable ink-jet ink having a viscosity of 30 mPas or less at 25° C., the ink comprising: at least two monofunctional (meth)acrylate monomers which comprise a cyclic monofunctional (meth)acrylate monomer and 2-(2-ethoxyethoxy)ethyl acrylate; a monofunctional monomer selected from an N-vinyl amide, and N-acryloyl amine or a mixture thereof; a multifunctional (meth)acrylate monomer; a polymerisable (meth)acrylate oligomer; a radical photoinitiator; and a colouring agent. The ink is preferably used in reel-to-reel printing and in printing where the substrates are stacked.Type: ApplicationFiled: January 14, 2013Publication date: May 23, 2013Applicant: SERICOL LIMITEDInventor: SERICOL LIMITED
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Patent number: 8388124Abstract: The present invention relates to a radiation-curable ink-jet ink comprising at least two monofunctional (meth)acrylate monomers; a monofunctional monomer selected from an N-vinyl amide, an N-acryloyl amine, or a mixture thereof; a polymerisable (meth)acrylate oligomer; a radical photoinitiator; and a colouring agent; wherein the ink has a viscosity of less than 100 mPas at 25° C. The ink is substantially free of multifunctional monomers; and the at least two monofunctional (meth)acrylate monomers include a combination of a cyclic monofunctional (meth)acrylate monomer and an acyclic-hydrocarbon monofunctional (meth)acrylate monomer. The ink displays an excellent balance of cure speed and viscosity for the ink together with hardness and flexibility for the cured film.Type: GrantFiled: January 29, 2008Date of Patent: March 5, 2013Assignee: Sericol LimitedInventor: Nigel Gould
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Patent number: 8377516Abstract: This invention relates to a radiation-curable ink-jet ink having a viscosity of 30 mPas or less at 25° C., the ink comprising: at least two monofunctional (meth)acrylate monomers which comprise a cyclic monofunctional (meth)acrylate monomer and 2-(2-ethoxyethoxy)ethyl acrylate; a monofunctional monomer selected from an N-vinyl amide, an N-acryloyl amine or a mixture thereof; a multifunctional (meth)acrylate monomer; a polymerisable (meth)acrylate oligomer; a radical photoinitiator; and a colouring agent. The ink is preferably used in reel-to-reel printing and in printing where the substrates are stacked.Type: GrantFiled: March 26, 2008Date of Patent: February 19, 2013Assignee: Sericol LimitedInventors: Gareth Pratt, Nigel Gould
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Publication number: 20120208915Abstract: The present invention provides a colourless inkjet ink composition comprising at least 30% by weight of mono-functional acrylate monomer based on the total weight of the ink and at least 3% by weight of a photoinitiator based on the total weight of the ink, wherein the photoinitiator comprises an ?-hydroxy ketone photoinitiator and wherein the ink comprises 0 to 6% by weight of acyl phosphine photoinitiator based on the total weight of the ink.Type: ApplicationFiled: September 3, 2010Publication date: August 16, 2012Applicant: SERICOL LIMITEDInventors: Yuuichi Hayata, Brian Woolrich, Vincent Wright
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Publication number: 20120207985Abstract: The present invention provides an inkjet ink comprising 5 to 30% by weight of organic solvent based on the total weight of the ink, a radiation curable monofunctional monomer, a radiation curable multifunctional monomer, a photoinitiator and a colourant.Type: ApplicationFiled: August 20, 2010Publication date: August 16, 2012Applicant: SERICOL LIMITEDInventors: Carole Noutary, Jeremy Ward
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Publication number: 20120206534Abstract: The present invention provides an inkjet ink comprising at least 30% by weight of organic solvent based on the total weight of the ink, a radiation curable material, a photoinitiator and optionally a colourant. The invention also provides an apparatus for printing the ink wherein the apparatus comprises at least one printhead, a means for evaporating solvent from the printed ink and a source of actinic radiation. Furthermore, the invention provides a method of inkjet printing comprising i) inkjet printing the inkjet ink as defined above on to a substrate; ii) evaporating at least a portion of the solvent from the printed ink; and iii) exposing the printed ink to actinic radiation to cure the radiation curable material.Type: ApplicationFiled: August 20, 2010Publication date: August 16, 2012Applicant: SERICOL LIMITEDInventors: Robert Augustus Fassam, Nigel Gould, Jeremy Ward, Barry McGregor
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Publication number: 20120126931Abstract: This invention relates to an electrolyte composition comprising an ionic liquid, a gellant selected from a cellulose derivative, gelatine and combinations thereof, and a radiation-curabie base.Type: ApplicationFiled: March 12, 2010Publication date: May 24, 2012Applicant: SERICOL LIMITEDInventors: Adam Joseph Howard Batting, Timothy Geoffrey Owen, Mats Standberg, Anurak Sawatdee, Xin Wang, Anna Malmstrom, Marie Nilsson, Lars-Olov Hennerdal