Patents Assigned to ACTIV' BIOMAT
  • Publication number: 20250051588
    Abstract: A substrate coated with a polymer obtained by grafting an aqueous monomer grafting solution comprising a mixture that includes sodium styrene sulphonate (NaSS) and methacrylic acid (MA) or acrylic acid (AA). The mixture has 10 to 90 mol % of sodium styrene sulphonate and 10 to 90 mol % of methacrylic acid or acrylic acid. The substrate is selected from among polyesters, vinyl polymers, polyacrylics and polymethacrylics, PEEK, silicones, natural polymers, natural or artificial celluloses, collagens, glycopolymers, ceramics, metals and metal alloys, and in particular Ti and alloys thereof and Ni—Ti alloys. The aqueous grafting solution has, in addition to the mixture which represents 90 to 99 mol % of the aqueous grafting solution, 1 to 10 mol % of hydroxyethylmethacrylate (HEMA).
    Type: Application
    Filed: December 20, 2022
    Publication date: February 13, 2025
    Applicant: ACTIV' BIOMAT
    Inventors: Daniel BLANQUAERT, Véronique MIGONNEY
  • Publication number: 20230136196
    Abstract: An oxidation and grafting method for grafting a bioactive polymer, such as polyNaSS, onto an article, in particular a polymer or ceramic article. The method comprises a step of oxidation by ozonation and a step of grafting by radical polymerisation in a polymerisation station having a first reactor. The two steps of oxidation and grafting are carried out consecutively in different solutions in the reactor of the polymerisation station.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 4, 2023
    Applicant: ACTIV' BIOMAT
    Inventors: Daniel BLANQUAERT, Amélie LEROUX, Véronique MIGONNEY