Patents by Inventor Karita Kinnunen
Karita Kinnunen 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: 11885072Abstract: A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.Type: GrantFiled: November 16, 2022Date of Patent: January 30, 2024Assignee: Paptic OyInventors: Karita Kinnunen-Raudaskoski, Martin Häggblom
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Patent number: 11828025Abstract: The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.Type: GrantFiled: June 17, 2022Date of Patent: November 28, 2023Assignee: Paptic OyInventors: Karita Kinnunen-Raudaskoski, Marja Juvonen, Esa Torniainen, Martin Häggblom, Tuomas Mustonen
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Publication number: 20230074973Abstract: A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.Type: ApplicationFiled: November 16, 2022Publication date: March 9, 2023Inventors: Karita Kinnunen-Raudaskoski, Martin Häggblom
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Patent number: 11512434Abstract: A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.Type: GrantFiled: July 15, 2019Date of Patent: November 29, 2022Assignee: Paptic OyInventors: Karita Kinnunen-Raudaskoski, Martin Häggblom
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Publication number: 20220307201Abstract: The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.Type: ApplicationFiled: June 17, 2022Publication date: September 29, 2022Inventors: Karita Kinnunen-Raudaskoski, Marja Juvonen, Esa Torniainen, Martin Häggblom, Tuomas Mustonen
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Patent number: 11371188Abstract: The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.Type: GrantFiled: December 31, 2018Date of Patent: June 28, 2022Assignee: Paptic OyInventors: Karita Kinnunen-Raudaskoski, Marja Juvonen, Esa Torniainen, Martin Häggblom, Tuomas Mustonen
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Publication number: 20220025147Abstract: According to an example aspect of the present invention, there is provided a method for foam assisted drying of nano- and microfibrillated cellulose, which is easily up-scalable and cost-efficient.Type: ApplicationFiled: November 22, 2019Publication date: January 27, 2022Inventors: Karita Kinnunen-Raudaskoski, Tuomo Hjelt, Jani Lehmonen
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Publication number: 20210310196Abstract: A water-dispersible composite structure, which comprises one or more layers, and a method of producing the same. At least a part of the layers is formed by a fibrous web or sheet containing 50-90 parts by weight of wood fibers and 10-90 parts by weight of annual or perennial plant fibers and/or 10-50 parts by weight of synthetic short-cut fibers, and 0.1-20% by weight of a binder, calculated from the weight of the fibers, and at least a part of the binder being a water-soluble polymer and another part a water dispersible binder, and the fibrous sheet or web being produced by wet forming. By means of the invention, the fibers of the composite structure can be recovered and recycled by equipment conventionally used in the paper and paperboard industry.Type: ApplicationFiled: July 15, 2019Publication date: October 7, 2021Inventors: Karita Kinnunen-Raudaskoski, Martin Häggblom
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Patent number: 11085151Abstract: A method of producing a fibrous web, according to which method a fibrous web is formed of foamed fibre dispersion, by using foam forming. According to the present invention, the foamed fibre dispersion comprises recycled textile fibres and possibly natural fibres or synthetic fibres, or a mixture thereof, in which case, of the fibres in the fibre layer, at least 30% % by weight, in particular at least 50% by weight, is sourced from recycled textile fibres. The present invention generates a product with which it is possible to replace, for example, plastic in bag and package applications. The present product is also suitable, for example, for various textile and furniture applications.Type: GrantFiled: May 23, 2017Date of Patent: August 10, 2021Assignee: Paptic OyInventors: Tuomas Mustonen, Esa Torniainen, Karita Kinnunen-Raudaskoski, Marja Juvonen
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Patent number: 10906268Abstract: Fiber sheets, structures comprising the fiber sheets and the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.Type: GrantFiled: November 19, 2019Date of Patent: February 2, 2021Assignee: PAPTIC LTDInventors: Esa Torniainen, Tuomas Mustonen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 10865523Abstract: The present invention relates to a method of manufacturing a fibre web which includes a fibre matrix that is comprised of natural fibres and possibly synthetic fibres. According to the present method, an aqueous, planar fibre layer is prepared from the natural fibres and possible synthetic fibres, which layer comprises an aqueous phase and a fibrous phase, and which layer is dried in order to remove the aqueous phase, in which case the natural fibres and possible synthetic fibres together form a fibre matrix. According to the present invention, binder is applied onto the water-containing fibre layer, which binder is allowed to penetrate via the aqueous phase at least partially in between the fibres, before the hydrogen bonds between the fibres form. With the present invention, it is possible to manufacture such cellulose or lignocellulose-based fibre products which have plastic-like properties, such as good fracture toughness, tear resistance and stretching.Type: GrantFiled: March 24, 2017Date of Patent: December 15, 2020Assignee: Paptic LtdInventors: Karita Kinnunen-Raudaskoski, Esa Torniainen, Tuomas Mustonen, Marja Juvonen
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Publication number: 20200331231Abstract: The present invention relates to multi-layer fiber products and a method of manufacturing these kinds of products. The present product comprises a first layer consists mainly of natural fibers and a second, heat-sealing layer located on top of the first layer. The heat-sealing layer consists mainly of synthetic thermoplastic fibers or particles. According to the present method, the heat-sealing layer is brought onto the first layer already during the web forming process, the first and the second layers being formed and joined together in a foam forming process. With the present invention, it is possible to decrease the amount of plastic materials in packaging materials having heat-sealing properties.Type: ApplicationFiled: December 31, 2018Publication date: October 22, 2020Inventors: Karita Kinnunen-Raudaskoski, Marja Juvonen, Esa Torniainen, Martin Häggblom, Tuomas Mustonen
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Publication number: 20200283958Abstract: A method of producing a fibrous web, according to which method a fibrous web is formed of foamed fibre dispersion, by using foam forming. According to the present invention, the foamed fibre dispersion comprises recycled textile fibres and possibly natural fibres or synthetic fibres, or a mixture thereof, in which case, of the fibres in the fibre layer, at least 30% % by weight, in particular at least 50% by weight, is sourced from recycled textile fibres. The present invention generates a product with which it is possible to replace, for example, plastic in bag and package applications. The present product is also suitable, for example, for various textile and furniture applications.Type: ApplicationFiled: May 23, 2017Publication date: September 10, 2020Inventors: Tuomas Mustonen, Esa Torniainen, Karita Kinnunen-Raudaskoski, Marja Juvonen
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Patent number: 10701873Abstract: The invention relates to growing medium structures comprising Sphagnum moss, to a foam-laid method for their manufacture and to the use thereof in horticulture, landscaping and forestry applications.Type: GrantFiled: September 25, 2014Date of Patent: July 7, 2020Assignees: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY, LUONNONVARAKESKUSInventors: Ari Erkkilä, Kirsi Immonen, Karita Kinnunen, Antti Oksanen, Risto Tahvonen, Liisa Särkkä, Juha Näkkilä, Tuomo Hjelt, Kari Jokinen
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Publication number: 20200086601Abstract: Fiber sheets, structures comprising the fiber sheets and the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.Type: ApplicationFiled: November 19, 2019Publication date: March 19, 2020Inventors: Esa TORNIAINEN, Tuomas MUSTONEN, Karita KINNUNEN, Tuomo HJELT
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Patent number: 10479044Abstract: The invention relates to fiber sheets, to structures comprising the fiber sheets and to the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.Type: GrantFiled: November 20, 2015Date of Patent: November 19, 2019Assignee: PAPTIC LTDInventors: Esa Torniainen, Tuomas Mustonen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 10449694Abstract: The present invention concerns a process for producing a thermoformable porous web using a mixture of cellulosic fibers and one or more thermoplastic materials, particularly by foam forming said mixture into a composite foam, and applying the foam into one or more layers on a support to obtain a porous pre-form web. The thus produced porous composite web can be further processed by compression molding to give a rigid high-strength composite structure, which is suitable for use in producing, e.g. panels or plates, packages or hygiene products, insulators or filters, or printed intelligence, electronics or microcellulose products.Type: GrantFiled: October 9, 2014Date of Patent: October 22, 2019Assignee: Teknologian tutkimuskeskus VTT OyInventors: Antti Ojala, Kalle Nättinen, Lisa Wikström, Hannu Minkkinen, Petri Jetsu, Jani Lehmonen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 10364533Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.Type: GrantFiled: May 5, 2017Date of Patent: July 30, 2019Assignee: STORA ENSO OYJInventors: Isto Heiskanen, Karita Kinnunen, Tuomo Hjelt
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Patent number: 10259151Abstract: The present invention relates to a method of forming a molded fibrous product, comprising the steps of foaming an aqueous suspension of natural fibers, optionally in combination with synthetic fibers, to provide a first fibrous foam, a surfactant may be added to aid the foaming, feeding the fibrous foam into a mold, mechanically withdrawing a part of the water contained in the foam to produce a solidified, moist fibrous composition, and evaporating water from the solidified, moist fibrous composition to produce a dry fibrous product.Type: GrantFiled: September 15, 2014Date of Patent: April 16, 2019Assignee: Teknologian tutkimuskeskus VTT OyInventors: Harri Kiiskinen, Esa Torniainen, Karita Kinnunen
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Publication number: 20190106842Abstract: The present invention relates to a method of manufacturing a fibre web which includes a fibre matrix that is comprised of natural fibres and possibly synthetic fibres. According to the present method, an aqueous, planar fibre layer is prepared from the natural fibres and possible synthetic fibres, which layer comprises an aqueous phase and a fibrous phase, and which layer is dried in order to remove the aqueous phase, in which case the natural fibres and possible synthetic fibres together form a fibre matrix. According to the present invention, binder is applied onto the water-containing fibre layer, which binder is allowed to penetrate via the aqueous phase at least partially in between the fibres, before the hydrogen bonds between the fibres form. With the present invention, it is possible to manufacture such cellulose or lignocellulose-based fibre products which have plastic-like properties, such as good fracture toughness, tear resistance and stretching.Type: ApplicationFiled: March 24, 2017Publication date: April 11, 2019Inventors: Karita Kinnunen-Raudaskoski, Esa Torniainen, Tuomas Mustonen, Marja Juvonen