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  • Composition Reversibly Dyes Contact Lens

    US Patent No. 8,702,816 B2; Michael D. Conte of Fort Worth, TX has patented a method to create a reversibly dyed hydrogel or silicon hydrogel substrate/soft contact lens. A hydrogel or silicon hydrogel substrate (a soft contact lens) is immersed in a…
    06.02.14

  • Hair Dye Uses Chromene, Chromane Dyes

    US Patent No. 8,518,126 B2; L’Oréal, Paris, has patented a process for dyeing hair that includes composition comprising one or more dyes chosen from chromene dyes and chromane dyes and a composition comprising one or more zinc mineral sa…
    11.04.13

  • Spectra Colors Rolls Out Rinse Dyes

    Applications include detergents, chemical compounding and car wash products.
    10.16.09

  • Dying to Know the Truth About Oxidative Dyes?

    Dying to Know the Truth About Oxidative Dyes?

    Most dyes are direct dyes, meaning that they have affinity to the surface on which they are being applied such as cloth, skin, hair or paper. The color of the dye solution also indicates the final color of the substrate.      This…
    Harvey M. Fishman, Consultant 03.03.09

  • Clariant Patents 1:2 Chromium Complex Dyes

    Patent No. US 6,764,524 B1: A Swiss researcher for Clariant Finance (BVI) Ltd., Tortola, The Virgin Islands, earned a patent for asymmetrical 1:2 chromium complex dyes.…
    11.22.05

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    11.30.-1