Patents Assigned to NORNER IP AS
  • Modified poly(alkylene carbonate) composition
    Patent number: 10370503
    Abstract: A process for the manufacture of a modified poly(alkylene carbonate) comprising compounding i) at least one poly(alkylene carbonate) and at least one modifying agent having at least three carboxylic acid groups, or ii) at least one carboxylic acid group and at least one anhydride group, or iii) at least two anhydride groups, at a temperature of 120 to 240° C.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: August 6, 2019
    Assignee: NORNER IP AS
    Inventors: Carlos Barreto Soler, Rodney W. Rychwalski, Siw Bodil Fredriksen
  • Process for purifying poly (alkylene carbonate)
    Patent number: 9340646
    Abstract: A process for purifying a poly(alkylene carbonate), said process comprising the steps of adding said poly(alkylene carbonate) to an aqueous solution, optionally in the presence of an acid compound, in the absence of any organic solvent. subsequently heating said blend to a temperature of up to 200° C.; and removing the aqueous phase and drying the residue.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: May 17, 2016
    Assignee: NORNER IP AS
    Inventors: Carlos Barreto Soler, Siw Bodil Fredriksen, Espen Ommundsen
  • PROCESS FOR PURIFYING POLY (ALKYLENE CARBONATE)
    Publication number: 20140155573
    Abstract: A process for purifying a poly(alkylene carbonate), said process comprising the steps of adding said poly(alkylene carbonate) to an aqueous solution, optionally in the presence of an acid compound, in the absence of any organic solvent. subsequently heating said blend to a temperature of up to 200° C.; and removing the aqueous phase and drying the residue.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 5, 2014
    Applicant: NORNER IP AS
    Inventors: Carlos Barreto Soler, Siw Bodil Fredriksen, Espen Ommundsen