Patents by Inventor Jurgen Dreier

Jurgen Dreier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of producing thermoplastic synthetic resin compositions with reduced diffusion coefficients
    Patent number: 6066695
    Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy and/or epoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: May 23, 2000
    Assignee: Roth Werke GmbH
    Inventors: Manfred Roth, Jurgen Dreier
  • Method of producing thermoplastic synthetic resin compositions with reduced diffusion cofficients
    Patent number: 5877260
    Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: March 2, 1999
    Assignee: Roth Werke GmbH
    Inventors: Manfred Roth, Jurgen Dreier