With Heavy Metal Compound Patents (Class 8/94.25)
With organic material (Class 8/94.26)
Chromium compound (Class 8/94.27)
Iron compound (Class 8/94.28)
  • Mixture of THP and a moderator to tan leather
    Patent number: 6827745
    Abstract: A mixture of THP and a moderator is used to tan leather. The moderator is selected from metaphosphates and polyhydroxy or polypyrolidyl compounds such as glycerol, carboxydrates PVA or PVP.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: December 7, 2004
    Assignee: Rhodia Consumer Specialties Limted
    Inventors: Christopher Raymond Jones, Gareth Rhys Collins, Robert Eric Talbot
  • Mixture of THP and chrome as tanning agents
    Patent number: 6685747
    Abstract: THP and chrome are synergistic tanning agents. The combination of THP with small amounts of chrome and optionally non-ionic and/or cationic surfactants gives increased area yield and shrink temperature compared with THP, and reduced environmental impact compared with chrome. It is possible to combine degreasing, pre-tan and main tan in a single step.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: February 3, 2004
    Assignee: Rhodia Consumer Specialties Limited
    Inventors: Robert Burrow, Daniel Sundah
  • Leather and a method of dressing same
    Publication number: 20020020024
    Abstract: Tanned leather is dry dressed by plasma deposition at atmospheric pressure of a matrix material such as ITO, a silicone, or polyurethane, upon the protein fibers of the surface of the leather and the collagen fiber skeleton below the surface protein fibers. The leather retains its toughness, elasticity, breathability and softness or hand.
    Type: Application
    Filed: March 29, 2001
    Publication date: February 21, 2002
    Applicant: EYBL INTERNATIONAL AG and LEDERFABRIK VOGL GMBH
    Inventors: Werner Schmitz, Gottfried Holzer, Wolfgang Vogl