Patents by Inventor Norbert F. Kock

Norbert F. Kock 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).

  • Patent number: 5614588
    Abstract: The invention relates to a polymer mixture which contains(A) 50 to 85 wt. % of a polyether block amide consisting of 30 to 60 wt. % of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 70 to 40 wt. % of polyethylene glycol blocks,(B) 10 to 40 wt. % of a polyether block amide consisting of 65 to 85 wt. % of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 35 to 15 wt. % of polyethylene glycol blocks, and(C) 5 to 40 wt. % of a poly(ethylene-co-vinylacetate-g-maleic anhydride) polymer consisting of 75 to 95 wt. % of ethylene, 5 to 25 wt. % of vinylacetate and 0.1 to 2 wt. % of maleic anhydride,wherein the data relating to wt. % for the constituents (A), (B) and (C) are with reference to the total amount of polymer mixture. The invention also relates to films produced from this polymer mixture and the use of these films to produce waterproof, water vapor permeable, wind resistant textile composite materials, dressing materials and hygiene items.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: March 25, 1997
    Assignee: Elf Atochem Deutschland GmbH
    Inventors: Roland E. Steenblock, Norbert F. Kock, Detlef H. Fiedler