The Universal Selection Source: Adhesives Ingredients

Formulation

Styrene-Isoprene-Styrene Hot Melt PSA for Low Temperature Labels by Kraton

Applicable Type
Applicable Industrial Sectors

Typical Formulation Ingredients

Phase
Ingredient
Parts by weight
Styrene-isoprene-styrene copolymer (Kraton D-1107, Kraton) 
   
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    Tackifier (Wingtack 95, Cray Valley) 
       
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    Tackifier (Wingtack 10, Cray Valley 
       
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    Antioxidant (Irganox 1010, BASF) 
       
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    Typical Properties

    Properties
    Melt viscosity @ 177°C, Pas 
       
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    Probe tack @ -18°C, gm 
       
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    Rolling ball tack, cm 
       
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    Loop tack, N/m 
       
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    180° Peel strength, N/m 
       
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  • Applicable Base Polymer Properties

    Styrene block copolymers (SBCs) offer cohesion, strength, and heat resistance for both pressure sensitive adhesives (PSAs) and non-pressure sensitive adhesives. The styrene phase forms a physically crosslinked network in the adhesive at room temperature. Of the SBCs, styrene butadiene styrene (SBS) has the highest shear strength and moderately good peel strength. Styrene isoprene styrene (SIS) has the highest peel strength although it is cohesively weaker than the SBS resins.

    Resulting Properties

    This adhesive formulation has good melt stability. The color and color retention after aging is better than other comparative adhesives. The adhesive has relatively good bond strength (peel and shear) even after aging. This adhesive formulation also shows:

    • High tack and peel strength
    • Good adhesion to low energy surfaces
    • Excellent adhesion to oriented polypropylene and Kraft paper
    • Very good cohesion
    • No transfer after aging


    (Source: Kraton)

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