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    DYPHENE? 8318 Formaldehyde, polymer with 4-(1,1,3,3-tetramethylbutyl) phenol CAS# 26678-93-3

    Dyphene? 8318 is an oil-soluble, non-heat reactive alkyl phenolic novolak resin that imparts exceptional initial tack and tack retention to rubber compounds.? It is used extensively as a tackifier in tire compounds based on blends of NR, SBR and BR.

    FEATURES:

    • Imparts high initial tack in green rubber stock (auto-adhesion)
    • Retains a high level of tack even after extended exposure to high temperature and humidity.
    • Exhibits good compatibility.
    • Offers greater economy than many less expensive resins because lower loadings of DYPHENE? 8318 can yield equivalent tack.
    • Functions as a processing aid, dispersion aid for other compounding ingredients, and reduces compound viscosity.
    • Out performs hydrocarbon resins for tack, tack retention and physical properties in many applications.

    SUGGESTED USES:? Tackifying resin for building tack in tire carcass stocks using NR/SBR and NR/SBR/BR blends, and inner liner recipes containing chlorobutyl/SBR/NR blends.? Tackifying resin for tire cements, rubber-compounding applications that now use hydrocarbon resins.

    Standard Package: 50# bags

    Shelf life: More than one year at temperatures of 100°F or lower.

    Recommended Storage:? Store in dry area.

    SPECIFICATIONS:

    Appearance: Yellow to amber flakes or pastilles
    *Softening point (Ring & Ball)°C

    90-100

    *Acid Number

    60-80

    *Acetone Insolubles

    0.3 Max.

    *Gardner Holdt Viscosity (num)

    2.0 – 4.0

    Specific Gravity

    1.00-1.050

    SOLUBILITY: Recommended solvents for DYPHENE? 8318 include:
    Acetone

    Xylene , Methyl Ethyl Ketone

    Toluene

    Hexane, VM&P Naphtha

    Rubber Solvent

    , Carbon Tetrachloride

    *Actual values reported on certificate of analysis.

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    For DYPHENE? 8318 - Formaldehyde, polymer with 4-(1,1,3,3-tetramethylbutyl) phenol

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        Technical Data & SDS Sheets

        Technical Product Sheets and SDS sheets are available for each of the chemicals listed. To access please click on the links above.
        • Western Reserve Chemical
        • 4837 Darrow Road
        • Stow, OH 44224

          Please contact us to request this Data Sheet

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