Patents Assigned to Union Minerale
  • Method of grafting a polymer to filler materials
    Patent number: 4252713
    Abstract: A method of grafting a polymer to filler materials, which comprises the steps of fixing a predetermined quantity of a surfactant to the mineral particles of said filler materials while keeping free one or a plurality of reactive functions, subsequently adding a product capable to reacting with the still free functions of said surfactant, in order to form in situ an organic polymer which is thus strongly fixed to the mineral filler by a heat treatment at a temperature in the range of 100.degree. to 150.degree. C.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: February 24, 1981
    Assignee: Union Minerale
    Inventor: Lucien Kahane
  • Method of grafting a polymer to filler materials
    Patent number: 4129549
    Abstract: A method of grafting a polymer to filler materials, which comprises the steps of fixing a predetermined quantity of a surfactant to the mineral particles of said filler materials while keeping free one or a plurality of reactive functions, subsequently adding a product capable to reacting with the still free functions of said surfactant, in order to form in situ an organic polymer which is thus strongly fixed to the mineral filler by a heat treatment at a temperature in the range of 100.degree. to 150.degree. C.
    Type: Grant
    Filed: March 26, 1976
    Date of Patent: December 12, 1978
    Assignee: Union Minerale
    Inventor: Lucien Kahane