Production Of Biopolymer Film, Fibre, Foam And Adhesive Materials From Soluble S-sulfonated Keratin Derivatives


Film, fibre, foam and adhesive materials are produced from soluble S-sulfonated keratins. Once formed, the films, fibres, foams or adhesives are treated to modify the properties of the materials, in particular to improve the wet strength of the materials. Treatments used include removal of the S-sulfonate group by treatment with a reducing agent, treatment with an acid or treatment with a common protein crosslinking agent or treatment with a reduced form of keratin or keratin protein. The films are made by solvent casting a solution of S-sulfonated keratin proteins, the foam made by freeze-drying a solution of S-sulfonated keratin proteins and the fibres made by extruding a solution of a S-sulfonated keratin protein.

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Document History
  • Publication: Dec 16, 2008
  • Application: Mar 1, 2004
    US US 48818804 A
  • Priority: Aug 30, 2002
    NZ NZ 0200169 W
  • Priority: Aug 31, 2001
    NZ NZ 51149201 A

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