Energy savings plus mechanical reinforcement and rheology control

Metallocene Catalyzed Polyolefin HMAs (B) for Packaging by Clariant

Adhesives Formulation

Applicable Type

Hot-melt Adhesives

Applicable Base Polymer

Metallocene Catalysts

Applicable Industrial Sectors

Papers & Packagings

Applicable Base Polymer Properties

Metallocene catalysts have been developed to produce polyolefins with precisely tailored properties. The attributes of metallocene catalyzed polyolefin (mPO) in hot melt adhesives are summarized below.

Increased mileage due to low density
Reduced gel and char formation in tanks, hoses, and nozzles for low maintenance and odor
Reduced stringing and spider webbing
Improved thermal stability and viscosity
Wide service temperature range
Good color / clarity
Clean machining
High adhesion to hard-to-bond substrates
Good compatibility with conventional plasticizing and tackifying agents

The major restraints of metallocene catalyzed polyolefin HMAs are

The raw material price
Formulations are somewhat more difficult to process than conventional hot melts.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Metallocene polypropylene (Licocene PP-2602, Clariant)

Wax (Licowax PE-520, Clariant)

Mineral oil wax (Sasolwax H2, Sasol)

Hydrocarbon tackifier (Regalite 1090, Eastman Chemical)

Styrene ethylene butadiene styrene, SEBS resin, (Kraton G1657, Kraton)

Typical Properties

Properties

Brookfield viscosity, mPa-s, at 170°C

xxx

Softening point, °C

xxx

Glass transition temperature (Tg) by DSC, °C

xxx

Open time, sec

xxxx

Set time, sec

xxx

Heat resistance, °C

xxx

Processing

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Resulting Properties

This particular HMA formulation will produce a waterwhite HMA with high cohesive strength and short set time. The formulation provides short open and set times. It also provides excellent hot tack.

The source of Metallocene Catalyzed Polyolefin HMAs (A) for Packaging is Clariant.