Energy savings plus mechanical reinforcement and rheology control

Amorphous Polyolefin Modified Hot Melt SEBS Adhesive (B) by Eastman

Adhesives Formulation

Applicable Type

Hot-melt Adhesives

Applicable Base Polymer

Polyolefins, Amorphous (APO, APAO)

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 ethylene butadiene styrene (SEBS) has the high shear strength and excellent weathering resistance. SEBS hot melt adhesives are achieving success in the automobile assembly and mobile home manufacturing industries. Only SBC polymers that are fully saturated can offer excellent resistance to degradation by air, ozone, or UV light. SEBS copolymers have saturated rubber midblocks and when formulated with saturated resins, plasticizers, and stabilizers can obtain a balance of adhesive properties as well as resistance to degradation by oxidation or UV light.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

SEBS Elastomer (Kraton G-1652, Kraton)

Tackifier (Eastotac H-130E resin, Eastman)

Oil

Antioxidant (Irganox, 1010, Ciba-Geigy)

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Amorphous polyolefin (Eastoflex P1023 APP, Eastman)

Typical Properties

Properties

T- peel adhesion, pli

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Creep resistance, 12 specimens, 8 hrs at 38°C

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Processing

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Resulting Properties

Amorphous Polyolefin Modified Hot Melt SEBS Adhesive (B) by Eastman are best known for their high heat resistance, high tear strength, and good tensile strength and elongation. Amorphous Polyolefin Modified Hot Melt SEBS Adhesives have good adhesion to glass and aluminum along with excellent mechanical properties. It also has a low moisture vapor transmission rate along with excellent UV and thermal stability. The substitution of SEBS with amorphous polyolefin will lower the cost of the formulation and enhance peel adhesion. The source of this formulation is Eastman Chemical Company.