Energy savings plus mechanical reinforcement and rheology control

Styrene-Isoprene-Styrene Pressure Sensitive HMA for Floor Tiles (B)

Adhesives Formulation

Applicable Type

Hot-melt Adhesives

Applicable Base Polymer

Styrene Block Copolymers, SBC (SBS, SEBS, SEPS, SIS)

Applicable Industrial Sectors

Buildings & constructions

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.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Styrene isoprene styrene Resin (Kraton 1107, Kraton)

xxx

Tackifier polyterpene resin (Wingtack 95, Cray Valley)

xxx

Tackifier polyterpene resin (Amoco 18-290, Amoco or equivalent)

Isobutene polymer (H-1500, Ineos)

Antioxidant (Irganox 1010, BASF)

Typical Properties

Properties

Quick stick adhesion (PSTC-5), lb

xxx

Peel adhesion (PSTC-1), lb

xxxx

Processing

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Resulting Properties

These hot melt pressure sensitive adhesive formulations have good tack and shows good melt stability. Formula A provides good shear adhesion and Formula B provides good peel adhesion. They should find application in self-stick floor tiles, specialty tapes and labels, and where solvent free coatings provide economic or environmental advantages.

The source of Styrene-Isoprene-Styrene Pressure Sensitive HMA for Floor Tiles is Adhesives Formulary Handbook, NIIR Board, Asia Pacific Business Press, Inc., 2010, pp. 300-301.

Tips and Tricks

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