Patents by Inventor Pirkko Karhunen
Pirkko Karhunen 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: 10208132Abstract: A method of modifying a polymer having hydroxyl groups, selected from the group of polysaccharides and lignin, to give a modified polymer comprising the step of contacting said polymer with at least one organic phosphonate salt in order to chemically modify the polymer, said organic phosphonate salt being in a liquid phase. The method of polymer modification provides novel polymers. Modified polymers obtained from a polymer having been treated with at least one organic phosphonate salt are also disclosed. The modified polymers can be used as such or separated and optionally recovered from the solution, optionally being formed into particular materials or shapes.Type: GrantFiled: May 26, 2014Date of Patent: February 19, 2019Assignees: Metsa Fibre Oy, Stora Enso OyjInventors: Alistair W. T. King, Christoph Selg, Pirkko Karhunen, Jorma Matikainen, Ilkka Kilpeläinen
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Patent number: 10086530Abstract: A method of treating wood with an organic phosphonate salt in a liquid phase to chemically modify its surface and thus provide protection from microorganisms. The organic phosphonate salts are of Formula III wherein R1 is a hydrogen radical or an alkyl or aryl radical having 1 to 20 carbon atoms and R2 is a cation selected from the group of NH4+, H+, Li+, Na+, K+, Rb+, Cs+, Fr+, Cu+, Ag+, substituted or unsubstituted ammonium, phosphonium, and sulfonium, methylpyrrolidinium, isothiazolium, isoxazolium, oxazolium, pyrrolium, thiophenium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, 1-ethyl-3-methylimidazolium , and triazolium, or a mixture thereof, said method preferably comprising using one or more salt compounds having formula III. Products comprising a raw material having been treated according to the method with one or more organic salts of formula III are also disclosed.Type: GrantFiled: May 26, 2014Date of Patent: October 2, 2018Assignees: Stora Enso Oyj, Tikkurila Oyj, Metsäliitto OsuuskuntaInventors: Pirkko Karhunen, Jorma Matikainen, Lasse Kyllönen, Pirjo Ahola, Ilkka Kilpeläinen, Alistair W. T. King
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Publication number: 20170326753Abstract: A method of treating wood with an organic phosphonate salt in a liquid phase to chemically modify its surface and thus provide protection from microorganisms. The organic phosphonate salts are of Formula III wherein R1 is a hydrogen radical or an alkyl or aryl radical having 1 to 20 carbon atoms and R2 is a cation selected from the group of NH4+, H+, Li+, Na+, K+, Rb+, Cs+, Fr+, Cu+, Ag+, substituted or unsubstituted ammonium, phosphonium, and sulfonium, methylpyrrolidinium, isothiazolium, isoxazolium, oxazolium, pyrrolium, thiophenium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, 1-ethyl-3-methylimidazolium, and triazolium, or a mixture thereof, said method preferably comprising using one or more salt compounds having formula III. Products comprising a raw material having been treated according to the method with one or more organic salts of formula III are also disclosed.Type: ApplicationFiled: May 26, 2014Publication date: November 16, 2017Inventors: Pirkko Karhunen, Jorma Matikainen, Lasse Kyllonen, Pirjo Ahola, Ilkka Kilpelainen, Alistair W.T. King
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Publication number: 20160325459Abstract: A method of treating wood with an organic phosphonate salt in a liquid phase to chemically modify its surface and thus provide protection from microorganisms. The organic phosphonate salts are of Formula III wherein R1 is a hydrogen radical or an alkyl or aryl radical having 1 to 20 carbon atoms and R2 is a cation selected from the group of NH4+, H+, Li+, Na+, K+, Rb+, Cs+, Fr+, Cu+, Ag+, substituted or unsubstituted ammonium, phosphonium, and sulfonium, methylpyrrolidinium, isothiazolium, isoxazolium, oxazolium, pyrrolium, thiophenium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium, 1-ethyl-3-methylimidazolium, and triazolium, or a mixture thereof, said method preferably comprising using one or more salt compounds having formula III. Products comprising a raw material having been treated according to the method with one or more organic salts of formula III are also disclosed.Type: ApplicationFiled: May 26, 2014Publication date: November 10, 2016Inventors: Pirkko Karhunen, Jorma Matikainen, Lasse Kyllonen, Pirjo Ahola, Ilkka Kilpelainen, Alistair W.T. King
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Publication number: 20160145356Abstract: A method of modifying a polymer having hydroxyl groups, selected from the group of polysaccharides and lignin, to give a modified polymer comprising the step of contacting said polymer with at least one organic phosphonate salt in order to chemically modify the polymer, said organic phosphonate salt being in a liquid phase. The method of polymer modification provides novel polymers. Modified polymers obtained from a polymer having been treated with at least one organic phosphonate salt are also disclosed. The modified polymers can be used as such or separated and optionally recovered from the solution, optionally being formed into particular materials or shapes.Type: ApplicationFiled: May 26, 2014Publication date: May 26, 2016Inventors: Alistair W.T. King, Christoph Selg, Pirkko Karhunen, Jorma Matikainen, Ilkka Kilpeläinen
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Publication number: 20130056165Abstract: The invention relates to a process for fibrillating lignocellulosic material wherein the process comprises treating lignocellulosic material with ionic liquid and recovering basically intact fibres of said lignocellulosic material. Another object of the invention is to provide an activated and/or basically intact fibre wherein the lignocellulosic material is treated with ionic liquid and a basically intact fibre of said lignocellulosic material is recovered. The invention further relates to the use of the basically intact fibre of the invention in the production of bio-based materials, preferably bio-plastics, more preferably conductive polymers, stimuli-responsive polymers, bio-based polymer composites, ceramics, fabrics, or elastomers. A process for producing paper, board, pulp or the like from fibers of lignocellulosic material which have been treated with ionic liquid and recovered as basically intact fibres is also enclosed.Type: ApplicationFiled: March 18, 2011Publication date: March 7, 2013Applicant: UNIVERSITY OF HELSINKIInventors: Ilkka Kilpelainen, Alistair King, Pirkko Karhunen, Jorma Matikainen
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Patent number: 7850841Abstract: The invention relates to a process for producing high-quality hydrocarbon base oil particularly of biological origin. The process of the invention comprises aldol condensation, hydrodeoxygenation, and isomerization steps. Aldehydes and/or ketones, preferably of biological origin are used as the feedstock.Type: GrantFiled: December 12, 2006Date of Patent: December 14, 2010Assignee: Neste Oil OyjInventors: Eija Koivusalmi, Ilkka Kilpeläinen, Pirkko Karhunen, Jorma Matikainen
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Publication number: 20070135316Abstract: The invention relates to a process for producing high-quality hydrocarbon base oil particularly of biological origin. The process of the invention comprises aldol condensation, hydrodeoxygenation, and isomerization steps. Aldehydes and/or ketones, preferably of biological origin are used as the feedstock.Type: ApplicationFiled: December 12, 2006Publication date: June 14, 2007Applicant: Neste Oil OyjInventors: Eija Koivusalmi, Ilkka Kilpelainen, Pirkko Karhunen, Jorma Matikainen
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Publication number: 20070131579Abstract: The invention relates to a process for producing high-quality saturated base oil or a base oil component based on hydrocarbons. The process of the invention comprises two main steps, the oligomerization and deoxygenation. A biological starting material containing unsaturated carboxylic acids and/or esters of carboxylic acids is preferably used as the feedstock.Type: ApplicationFiled: December 12, 2006Publication date: June 14, 2007Applicant: Neste Oil OyjInventors: Eija Koivusalmi, Ilkka Kilpelainen, Pirkko Karhunen, Jorma Matikainen