Patents Assigned to Arplas Gesellschaft fur Plasmatechnologie mbH
  • Process for the chemical modification of solids containing alkyl groups
    Patent number: 5989477
    Abstract: The invention relates to a process for the chemical modification of solids containing alkyl groups. It is provided that the solids containing alkyl groups are heated to temperatures above their melting point and subjected to a plasma treatment in a frequency range from 10 kHz to 10 GHz.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: November 23, 1999
    Assignee: Arplas Gesellschaft Fur Plasmatechnologie mbH
    Inventor: Steffen Berger
  • Plasma unit
    Patent number: 5925325
    Abstract: The invention relates to a plasma unit, in particular for treating solids containing alkyl groups with a low-temperature plasma, having a treatment reactor and plasma-generation apparatuses assigned to the treatment reactor. It is provided that an apparatus (14) for generating a melt of the solids (24) to be treated is assigned to the treatment reactor (12).
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: July 20, 1999
    Assignee: Arplas Gesellschaft Fur Plasmatechnologie mbH
    Inventors: Steffen Berger, Johannes Messelhauser, Walter Schonherr
  • Process for the chemical modification of thermoplastics that contain alkyl groups
    Patent number: 5904817
    Abstract: The invention relates to a process for the chemical modification of thermoplastics that contain alkyl groups. It is proposed to granulate the thermoplastics that contain alkyl groups and to subject them to a plasma treatment in a frequency range of from 10 kHz to 10 GHz.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: May 18, 1999
    Assignee: Arplas Gesellschaft Fur Plasmatechnologie mbH
    Inventor: Steffen Berger
  • Process for the chemical modification of liquids containing alkyl groups
    Patent number: 5904816
    Abstract: The invention relates to a process for the chemical modification of liquids containing alkyl groups. It is provided that the liquids containing alkyl groups are subjected to a plasma treatment in a frequency range from 10 kHz to 10 GHz.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: May 18, 1999
    Assignee: Arplas Gesellschaft Fur Plasmatechnologie mbH
    Inventor: Steffen Berger
  • Wax
    Patent number: 5800604
    Abstract: The invention relates to a novel wax and also to a process for preparing the wax which can be chemically modified in a simple, flexibly adaptable, inexpensive and environmentally friendly way. For this purpose, it is provided for the untreated waxes to be subjected to a low-temperature plasma treatment by means of which the waxes can be chemically modified in accordance with the application.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: September 1, 1998
    Assignee: Arplas Gesellschaft Fur Plasmatechnologie mbH
    Inventor: Steffen Berger
  • Process for producing a polymer which can be used as a powder coating material and/or hot-melt adhesive
    Patent number: 5759642
    Abstract: A process for producing a polymer which can be used as a powder coating material or a hot-melt adhesive in which at least one polyolefin is subjected to a low-temperature plasma treatment with frequencies changing during the treatment in a frequency range of from 30 kHz to 10 GHz.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: June 2, 1998
    Assignee: Arplas Gesellschaft fur Plasmatechnologie mbH
    Inventor: Steffen Berger