Patents by Inventor Bo Andreasson
Bo Andreasson 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: 20240149236Abstract: Thermally expandable microspheres include a polymeric shell surrounding a hollow core, wherein the hollow core comprises a blowing agent, and the polymeric shell comprises an acetate-functionalised cellulose having a glass transition temperature of from about 150 to about 250° C. and a hydrogen bond donor chosen from alcohols, urea, and carboxylic acids. The microspheres are formed using a process including the step of mixing an acetate-functionalised cellulose, an organic solvent, a blowing agent and a hydrogen bond donor to form a mixture and then spraying the mixture into drying equipment to produce the thermally expandable microspheres.Type: ApplicationFiled: November 19, 2021Publication date: May 9, 2024Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Bo ANDREASSON, Roel WIJTMANS, Elwin SCHOMAKER, Helena BERGENUDD
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Patent number: 11939446Abstract: The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic micro spheres, expanded micro spheres and their use in the manufacture of products.Type: GrantFiled: July 11, 2017Date of Patent: March 26, 2024Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Christina Nyholm, Per Anders Restorp, Anders Törncrona, Helena Bergenudd, Andreas Sundblom, Bo Andreasson
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Publication number: 20230220177Abstract: The present disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a hollow core, wherein the hollow core comprises a blowing agent, and the polymeric shell comprises a carboxylate-functionalised cellulose, wherein the thermally expandable microspheres have a temperature at which expansion starts, TStart, of from 80° C. to less than 135° C. The present disclosure further relates to a process for preparing expandable microspheres as well as to thermally expandable microspheres obtained by such process, the process comprising mixing a carboxylate-functionalised cellulose, an organic solvent, a blowing agent and, optionally, a polymer shell enhancer and then spraying the thus obtained mixture into a drying equipment to produce the thermally expandable microspheres having a polymeric shell surrounding a hollow core, in which the polymeric shell comprises the carboxylate-functionalised cellulose, and the hollow core comprises the blowing agent.Type: ApplicationFiled: May 19, 2021Publication date: July 13, 2023Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Bo ANDREASSON, Roel WIJTMANS, Elwin SCHOMAKER, Helena BERGENUDD
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Publication number: 20220363859Abstract: The disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a blowing agent-containing hollow core, the polymer shell comprising a carboxylate-functionalised cellulose having a glass transition temperature (Tg) of at least about 125° C. The disclosure also relates to a method for preparing such thermally expandable microspheres, comprising mixing an aqueous phase that optionally comprises an emulsifier with an organic phase that comprises an organic solvent, a blowing agent and a carboxylate-functionalised cellulose having a Tg of at about least 125° C., to form a microsphere dispersion.Type: ApplicationFiled: November 12, 2019Publication date: November 17, 2022Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Bo ANDREASSON, Roel WIJTMANS, Anna LARSSON-KRON, Malin FROM, Ana LÓPEZ CABEZAS, Marcus RUDA, Paula MARTIREZ
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Publication number: 20220088557Abstract: The present disclosure relates to spherical capsules comprising a polymeric shell surrounding a hollow core, in which the polymeric shell comprises an dialcohol cellulose that is optionally substituted. The present disclosure also relates to a process for preparing such spherical capsules, comprising mixing a solution comprising dissolved dialcohol cellulose that is optionally substituted and one or more non-polar organic compounds with an antisolvent, wherein the antisolvent comprises or consists of one or more compounds, and has a polarity less than that of water.Type: ApplicationFiled: January 24, 2020Publication date: March 24, 2022Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.Inventors: Per LARSSON, Katarzyna MYSTEK, Lars WAGBERG, Anna LARSSON-KRON, Bo ANDREASSON
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Publication number: 20190233606Abstract: The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic micro spheres, expanded micro spheres and their use in the manufacture of products.Type: ApplicationFiled: July 11, 2017Publication date: August 1, 2019Inventors: Christina NYHOLM, Per Anders RESTORP, Anders TÖRNCRONA, Helena BERGENUDD, Andreas SUNDBLOM, Bo ANDREASSON
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Publication number: 20110150959Abstract: A wipe, in particular a personal hygiene wipe such as a baby care, feminine hygiene care, incontinence care, hand care or foot care wipe, includes a composition including oxidized lipids as an odour control substance. The lipids are oxidized under controlled conditions to have a peroxide value of at least 20 meq/kg. The lipids are for example triglycerides of fatty acids.Type: ApplicationFiled: October 3, 2008Publication date: June 23, 2011Applicant: SCA Hygiene Products ABInventors: Bo Andreasson, Ulla Forsgren Brusk, Kent Malmgren, Chatrine Stridfeldt
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Patent number: 7947292Abstract: The invention concerns the use of a fiber modified with functions capable of interacting with microbial cell wall proteins for immobilizing micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibers may be synthetic or cellulosic. Also hygiene products containing these fibers are described.Type: GrantFiled: December 6, 2007Date of Patent: May 24, 2011Assignee: SCA Hygiene Products ABInventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
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Publication number: 20100278690Abstract: The invention concerns the use of a fibre modified with functions capable of interacting with microbial cell wall proteins for immobilising micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibres may be synthetic or cellulosic. Also hygiene products containing these fibres are described.Type: ApplicationFiled: December 6, 2007Publication date: November 4, 2010Applicant: SCA HYGIENE PRODUCTS ABInventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
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Publication number: 20100262098Abstract: An absorbent article such as a sanitary napkin, panty liner, diaper, pant diaper, adult incontinence guard, includes oxidized lipids as an odour control substance. Preferably the lipids are oxidized under controlled conditions to have a peroxide number of at least 20 meq/kg. The lipids are for example triglycerides of fatty acids.Type: ApplicationFiled: December 21, 2007Publication date: October 14, 2010Applicant: SCA Hygiene Products ABInventors: Ulla Forsgren Brusk, Kent Malmgren, Chatrine Stridfeldt, Bo Andreasson
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Publication number: 20040166144Abstract: The invention concerns the use of a fibre modified with functions capable of interacting with microbial cell wall proteins for immobilising micro-organisms in hygiene products. Those functions are particularly capable of interacting with anionic groups and amine groups, and are especially cationic groups and aldehydes, respectively. The fibres may be synthetic or cellulosic. Also hygiene products containing these fibres are described.Type: ApplicationFiled: January 15, 2004Publication date: August 26, 2004Inventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
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Publication number: 20030127209Abstract: The present invention provides a method of producing a particle or group of particles intended for use in making paper- and/or nonwoven products and having a coating of at least two, preferably at least three, thin layers of alternating cationic and anionic polymers located outside each other, in which the particle or group of particles is treated in consecutive steps with solutions of the alternating cationic and anionic polymers. The amount of the respective polymer to be added in each step is controlled by charge measurements of the treatment solution or a liquid containing the particles or group of particles and the polymer solution, after the treatment in each step in order to determine that substantially all polymer is adsorbed to the particle surface. The present invention also relates to a paper- or nonwoven product containing fibers and/or fillers produced according to a method of the invention.Type: ApplicationFiled: October 4, 2002Publication date: July 10, 2003Inventors: Sussan Sandberg, Bo Andreasson
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Patent number: 6152092Abstract: Crankcase scavenged internal combustion engine (1) of two-stroke type, intended for a working tool, preferably a chain saw or a trimmer, and provided with a light-weight and compact muffler (2). The engine is arranged with a particularly high crankcase compression created in that at least one filling (3, 4, 5, 6) is placed into the compression area (7) under the engine piston (8) in form of a filled balance (3) and/or a piston filling (4) and/or a piston washer (5) and/or a stationary filling (6), at the same time as the engine is provided with an especially strong throttling created in the engine's exhaust side, i.e. in its exhaust port (9) and/or in a possible exhaust duct (10) and/or in the muffler (2).Type: GrantFiled: June 21, 1999Date of Patent: November 28, 2000Assignee: Aktiebolaget ElectroluxInventors: Bo Andreasson, Roy Ekdahl, Hans Strom, Ulf Svensson, deceased, by Gunnel Maria Vilhelmina Svensson, legal representative, by Hubert Malte Svensson, legal representative
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Patent number: 5992829Abstract: Fuel supply system (1) for internal combustion engines, arranged in a suction channel (2) leading to the engine body proper, the system (1) comprising one or several air-regulating valves (5,6) and one or several nozzles (3,3'). A cavity (7) or channel is provided in the wall of the suction channel (2) and is positioned in such a manner that when the air-regulating valve (5,6) assumes its closed position the cavity or the channel creates a communication path (21) from one side of the air-regulating valve to the other one, and in that an at least partly movable body (8) is positioned adjacent the cavity (7) or channels in such a manner as to be able to affect the through-flow resistance in the communication path (21). The position of the movable body (8) is controlled by a temperature-responsive member (9), for instance a bimetal element.Type: GrantFiled: April 18, 1997Date of Patent: November 30, 1999Assignee: Aktiebolaget ElectroluxInventor: Bo Andreasson
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Patent number: 5040926Abstract: To manufacture a pile which is intended to take compressive as well as tensile loads or to serve as a reinforcement member in soils, a strip is wound off a roll of strip material and is carried through a rotating-roller shaping unit in which the strip is shaped by rollers. If desired, the unit is operated in such a manner that it forms a bend in the direction of pile advancement. A pile thus shaped is driven from the roller shaping unit by means of pressure in arbitrary directions into the mass of an earth layer. Upon attainment of the desired depth of penetration and/or pile length the pile is severed at or close to the upper surface of the earth layer.Type: GrantFiled: July 19, 1989Date of Patent: August 20, 1991Inventor: Bo Andreasson
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Patent number: 4733993Abstract: A foundation element, preferably for subsea use. The element consists of a number of open-bottom cells which are closed at their top and which are delimited by cell walls and comprise a common roof. The element is arranged to penetrate down into the sea bottom soil until the cells are filled with soil. The width of the element corresponds to or is in excess of the length of the cell walls.The roof of the foundation element, when said element is installed in the bottom strata, is essentially level with the sea bottom surface, thus constituting a high-quality seabed floor suitable for various loads.The invention also comprises the use of the element for various applications.Type: GrantFiled: June 6, 1986Date of Patent: March 29, 1988Assignee: J & W Offshore ABInventor: Bo A. Andreasson