Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Non-crystalline ethylene polyolefin copolymer (Retac 2304, Huntsman)
A
Metallocene catalyzed ethylene propylene copolymer (Licocene PP2602, Clariant)
A
Styrene ethylene butadiene styrene, SEBS, copolymer (Kraton G1657, Kraton)
A
Hydrogenated hydrocarbon tackifier (Arkon M-100, Arakawa Chemical)
A
Hydrogenated hydrocarbon tackifier (Maruca Clear-H, Maruzen Petrochemicals, Ltd.)
A
Antioxidant (Tominox TT, API Corporation)
Typical Properties
Peel force, gms, after 24 hours
Peel force, gms, after 1 month
Peel force, gms, after 15 days at 50° C
Resulting Properties
The above formulation can produce high quality hot melt adhesive with low viscosity, high softening point, superior heat resistance, and a high degree of adhesive strength and stability at high temperatures. The adhesive is particularly useful for the manufacture of hard to bond articles including laminations.
(Source: US Patent Application 2011/0021102, assigned to Henkel, January 27, 2011.)