Patents by Inventor Rolf Nordal

Rolf Nordal 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).

  • Process for the preparation of monodisperse polymer particles
    Patent number: 9309368
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: April 12, 2016
    Assignee: LIFE TECHNOLOGIES AS
    Inventors: Arne Jørgedal, Elin Marie Aksnes, Geir Fonnum, Astrid Molteberg, Rolf Nordal, Henning Pettersen, Tollef Tårneby, Solveig Staale, Ellen Weng, Finn Hansen, Silje Nordbø, Oddvar Aune, Arvid Berge, John Bjørgum, Turid Ellingsen, John Ugelstad
  • PROCESS FOR THE PREPARATION OF MONODISPERSE POLYMER PARTICLES
    Publication number: 20160075800
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Application
    Filed: September 28, 2015
    Publication date: March 17, 2016
    Inventors: Arne JØRGEDAL, Elin Marie AKSNES, Geir FONNUM, Astrid MOLTEBERG, Rolf NORDAL, Henning PETTERSEN, Tollef TÅARNEBY, Solveig STAALE, Ellen WENG, Finn HANSEN, Silje NORDBØ, Oddvar AUNE, Arvid BERGE, John BJØRGUM, Turid ELLINGSEN, John UGELSTAD
  • PROCESS FOR THE PREPARATION OF MONODISPERSE POLYMER PARTICLES
    Publication number: 20140256836
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Application
    Filed: January 10, 2014
    Publication date: September 11, 2014
    Applicant: LIFE TECHNOLOGIES AS
    Inventors: Arne JØRGEDAL, Elin Marie AKSNES, Geir FONNUM, Astrid MOLTEBERG, Rolf NORDAL, Henning PETTERSEN, Tollef TÂRNEBY, Solveig STAALE, Ellen WENG, Finn HANSEN, Silje NORDBØ, Oddvar AUNE, Arvid BERGE, John BJØRGUM, Turid ELLINGSEN, John UGELSTAD
  • Process for the preparation of monodisperse polymer particles
    Patent number: 8658733
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 25, 2014
    Assignee: Life Technologies AS
    Inventors: Arne Jorgedal, Elin Aksnes, Geir Fonnum, Astrid Molteberg, Rolf Nordal, Henning Pettersen, Tollef Taarneby, Solveig Staale, Ellen Weng, Finn Hansen, Silje Nordbo, Oddvar Aune, Arvid Berge, John Bjorgum, Turid Ellingsen, John Ugelstad
  • Process for the preparation of functionalised polymer particles
    Patent number: 7763689
    Abstract: A process for the preparation of amine-functionalized vinyl polymer particles which process comprises suspension polymerizing minostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: July 27, 2010
    Assignee: Dynal Biotech ASA
    Inventors: Geir Fonnum, Ellen Weng, Elin Marie Aksnes, Rolf Nordal, Preben Cato Mørk, Svein Tøgersen, Julian Cockbain
  • PROCESS FOR THE PREPARATION OF MONODISPERSE POLYMER PARTICLES
    Publication number: 20100099803
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Application
    Filed: December 21, 2009
    Publication date: April 22, 2010
    Applicant: LIFE TECHNOLOGIES CORPORATION
    Inventors: ARNE JØRGEDAL, ELIN MARIE AKSNES, GEIR FONNUM, TURID ELLINGSEN, ARVID TRYGVE BERGE, JOHN UGELSTAD, VIOLA UGELSTAD, ASTRID EVENROD MOLTEBERG, ROLF NORDAL, HENNING PETTERSEN, TOLLEF TAARNEBY, SOLVEIG MARIE STAALE, ELLEN WENG, FINN KNUT HANSEN, SILJE STEINBAKK NORDBØ, ODDVAR ARNFINN AUNE, ARVID TRYGVE BERGE, JOHN OLAV BJØRGUM
  • PROCESS FOR THE PREPARATION OF FUNCTIONALISED POLYMER PARTICLES
    Publication number: 20080039578
    Abstract: A process for the preparation of amine-functionalised vinyl polymer particles which process comprises suspension polymerizing minostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 14, 2008
    Applicant: INVITROGEN DYNAL AS
    Inventors: Geir Fonnum, Ellen Weng, Elin Aksnes, Rolf Nordal, Preben Mork, Svein Togersen, Julian Cockbain
  • PROCESS FOR THE PREPARATION OF MONODISPERSE POLYMER PARTICLES
    Publication number: 20070265390
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 15, 2007
    Inventors: Arne Jorgedal, Elin Aksnes, Geir Fonnum, Turid Ellingsen, Arvid Berge, John Ugelstad, Viola Ugelstad, Astrid Molteberg, Rolf Nordal, Henning Pettersen, Tollef Taarneby, Solveig Staale, Ellen Weng, Finn Hansen, Silje Nordbo, Oddvar Aune, Arvid Berge, John Bjorgum
  • Process for the preparation of monodisperse polymer particles
    Patent number: 7217762
    Abstract: A process for the preparation of monodisperse polymer particles which are formed by contacting monomers with aqueous dispersions comprising monodisperse swellable seed polymers/oligomers, and initiating polymerization in the presence of a steric stabilizer. The resulting swollen seed particles are characterized by the particle mode diameter.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 15, 2007
    Assignee: Invitrogen Corporation
    Inventors: Arne Jørgedal, Elin Marie Aksnes, Geir Fonnum, Astrid Evenrød Molteberg, Rolf Nordal, Henning Pettersen, Tollef Taarneby, Solveig Marle Staale, Ellen Weng, Finn Knut Hansen, Silje Steinbakk Nordbø, Oddvar Arnfinn Aune, Arvid Trygve Berge, John Olav Bjørgum, Turid Ellingsen, deceased, Arvid Tryge Berge, legal representative, John Ugelstad, deceased, Viola Ugelstad, legal representative
  • Process for the preparation of functionalised polymer particles
    Publication number: 20060069217
    Abstract: A process for the preparation of amine-functionalised vinyl polymer particles which process comprises suspension polymerizing aminostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.
    Type: Application
    Filed: November 14, 2005
    Publication date: March 30, 2006
    Inventors: Geir Fonnum, Ellen Weng, Elin Aksnes, Rolf Nordal, Preben Mork, Svein Togersen, Julian Cockbain
  • Process for the preparation of functionalized polymer particles
    Patent number: 6984702
    Abstract: A process for the preparation of amine-functionalized vinyl polymer particles which process comprises suspension polymerizing aminostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: January 10, 2006
    Assignee: Dynal Biotech ASA
    Inventors: Geir Fonnum, Ellen Weng, Elin Marie Aksnes, Rolf Nordal, Preben Cato Mørk, Svein Tøgersen, Julian Cockbain
  • Process for the preparation of functionalised polymer particles
    Publication number: 20030109657
    Abstract: The invention provides a process for the preparation of amine-functionalised vinyl polymer particles which process comprises suspension polymerizing aminostyrene together with at least one other vinylic monomer and optionally a crosslinking agent.
    Type: Application
    Filed: December 24, 2002
    Publication date: June 12, 2003
    Inventors: Geir Fonnum, Ellen Weng, Elin Marie Aksnes, Rolf Nordal, Preben Cato Mork, Svein Togersen, Julian Cockbain
  • Preparation of polymer particles
    Patent number: 6559217
    Abstract: The invention provides a process for the preparation of polymer particles having a mode particle size of at least 50 &mgr;m which process comprises (a) obtaining a first particulate polymer seed material having a mode particle diameter of no more than 50 &mgr;m; (b) using said first seed material, performing a suspension polymerization involving the steps: (i) forming an aqueous dispersion comprising a polymer seed material, an organic compound (e.g. a polymerization initiator) which has a molecular weight of less than 5000 Daltons and a water solubility of less than 10−2 g/L at 25° C., a stabilizer and optionally an organic solvent (e.g. acetone or a portion of the monomer mentioned below); (ii) allowing said organic compound to diffuse into the seed material to produce an activated seed material; and (iii) contacting said activated seed material with a monomer (e.g.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 6, 2003
    Assignee: Polymer Systems AS
    Inventors: Rolf Nordal, Svein Tøgersen, Preben Cato Mørk