Patents by Inventor Bo A. Andreasson

Bo A. 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).

  • Patent number: 11939446
    Abstract: 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: Grant
    Filed: July 11, 2017
    Date of Patent: March 26, 2024
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Christina Nyholm, Per Anders Restorp, Anders Törncrona, Helena Bergenudd, Andreas Sundblom, Bo Andreasson
  • Publication number: 20230220177
    Abstract: 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: Application
    Filed: May 19, 2021
    Publication date: July 13, 2023
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Bo ANDREASSON, Roel WIJTMANS, Elwin SCHOMAKER, Helena BERGENUDD
  • Publication number: 20220363859
    Abstract: 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: Application
    Filed: November 12, 2019
    Publication date: November 17, 2022
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Bo ANDREASSON, Roel WIJTMANS, Anna LARSSON-KRON, Malin FROM, Ana LÓPEZ CABEZAS, Marcus RUDA, Paula MARTIREZ
  • Publication number: 20220088557
    Abstract: 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: Application
    Filed: January 24, 2020
    Publication date: March 24, 2022
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Per LARSSON, Katarzyna MYSTEK, Lars WAGBERG, Anna LARSSON-KRON, Bo ANDREASSON
  • Publication number: 20190233606
    Abstract: 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: Application
    Filed: July 11, 2017
    Publication date: August 1, 2019
    Inventors: Christina NYHOLM, Per Anders RESTORP, Anders TÖRNCRONA, Helena BERGENUDD, Andreas SUNDBLOM, Bo ANDREASSON
  • Publication number: 20110150959
    Abstract: 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: Application
    Filed: October 3, 2008
    Publication date: June 23, 2011
    Applicant: SCA Hygiene Products AB
    Inventors: Bo Andreasson, Ulla Forsgren Brusk, Kent Malmgren, Chatrine Stridfeldt
  • Patent number: 7947292
    Abstract: 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: Grant
    Filed: December 6, 2007
    Date of Patent: May 24, 2011
    Assignee: SCA Hygiene Products AB
    Inventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
  • Publication number: 20100278690
    Abstract: 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: Application
    Filed: December 6, 2007
    Publication date: November 4, 2010
    Applicant: SCA HYGIENE PRODUCTS AB
    Inventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
  • Publication number: 20100262098
    Abstract: 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: Application
    Filed: December 21, 2007
    Publication date: October 14, 2010
    Applicant: SCA Hygiene Products AB
    Inventors: Ulla Forsgren Brusk, Kent Malmgren, Chatrine Stridfeldt, Bo Andreasson
  • Publication number: 20040166144
    Abstract: 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: Application
    Filed: January 15, 2004
    Publication date: August 26, 2004
    Inventors: Arie Besemer, Dorine Lisa Van Brussel-Verraest, Anne-Mieke Verwilligen, Gunilla Himmelmann, Kent Malmgren, Bo Andreasson, Carolyn Berland
  • Publication number: 20030127209
    Abstract: 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: Application
    Filed: October 4, 2002
    Publication date: July 10, 2003
    Inventors: Sussan Sandberg, Bo Andreasson
  • Patent number: 6152092
    Abstract: 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: Grant
    Filed: June 21, 1999
    Date of Patent: November 28, 2000
    Assignee: Aktiebolaget Electrolux
    Inventors: Bo Andreasson, Roy Ekdahl, Hans Strom, Ulf Svensson, deceased, by Gunnel Maria Vilhelmina Svensson, legal representative, by Hubert Malte Svensson, legal representative
  • Patent number: 5992829
    Abstract: 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: Grant
    Filed: April 18, 1997
    Date of Patent: November 30, 1999
    Assignee: Aktiebolaget Electrolux
    Inventor: Bo Andreasson
  • Patent number: 5040926
    Abstract: 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: Grant
    Filed: July 19, 1989
    Date of Patent: August 20, 1991
    Inventor: Bo Andreasson
  • Patent number: 4733993
    Abstract: 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: Grant
    Filed: June 6, 1986
    Date of Patent: March 29, 1988
    Assignee: J & W Offshore AB
    Inventor: Bo A. Andreasson