Patents Assigned to Obschestvos Organichennoy Otvetstvennostyu “Vitagel”
  • Patent number: 7238761
    Abstract: Multifunctional biocompatible hydrophilic gel contains, in % (w/w), acrylamide—1.95-8.0, methacrylamide—0.54-3.0, 2-hydroxyethyl methacrylate—0.003-0.4, N,N?-methylene-bis-acrylamide—0.006-0.6 and water—q.s. to 100. The hydrophilic gel is produced by co-polymerization of the above mentioned monomers in water medium in the presence of a peroxide initiator of polymerization in three stages which include (1) incubation of the reaction mixture at 20-30° C. for 12-24 hours, (2) exposure to ?-radiation at a dose of 0.4-1.0×106 rads, and (3) incubation at a temperature of 100-130° C. and pressure of 0-1.2 atm. for 20-40 minutes.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 3, 2007
    Assignee: Obschestvos Organichennoy Otvetstvennostyu “Vitagel”
    Inventor: Vladislav Victorovich Lopatin