Patents Assigned to ERKOL, S.A.
  • Vinyl Alcohol-N-Vinyl Amine Copolymer and Its Preparation Process
    Publication number: 20080112911
    Abstract: A process for manufacturing a highly water-soluble vinyl alcohol-N-vinyl amine copolymer with a degree of hydrolysis higher than 93%, including a hydrolysis reaction of a vinyl alcohol-N-vinyl formamide copolymer with an alkaline metal hydroxide in methanol wherein the process is carried out with more than 1.5 mol of the alkaline metal hydroxide per mol of N-vinyl formamide units and without addition of water. A higher water soluble vinyl alcohol-N-vinyl amine copolymer obtained by this process and the use thereof.
    Type: Application
    Filed: January 26, 2006
    Publication date: May 15, 2008
    Applicant: ERKOL, S.A.
    Inventors: Juan Carlos Rodriguez Esteban, Alfredo Seco Carracedo, Maria del Carmen Palau Vall, Joseba Iñaki Iragorri Sainz