Aliphatic hydrocarbon resin luhorez A-1095/1095Z for glass pressure sensitive adhesive

 A-1095 is pale yellow themoplastic Resin obtained from polymerrizing unsatureted aliphatic olefins and diolefins derived from the pross of thermal cracking of naphtha.The major usages are tackifier for pressure sensitive Adhesive,because of its well balanced PSA properties such as trackness, adhesive strength and cohesive strength.Because of its low softening point,it can be used for reduce the glass temperature of adhesive.

Hydrocarbon resins are amorphous thermoplastic polymers produced by polymerization of unsaturated hydrocarbons. The feedstock are various by-products of naphtha crackers. These resins have typically a low molecular weight ranging from about 400 to 5000 g/mol. The three main types are C5 aliphatic, C9 aromatic, and DCPD cycloaliphatic resins. They are sometimes hydrogenated to reduce discoloration and to improve their heat and UV stability.

Aliphatic hydrocarbon resins (C5 Resins) are made from C5 piperylene and its derivatives. The most important ones are cis/trans 1,3-pentadienes, 2-methyl-2-butene, cyclopentene, cyclopentadiene, and dicyclopentadiene. These monomers are polymerized to oligomeric resins with low to high softening point using Lewis acid catalysts. C5 resins are aliphatic in nature and are, therefore, fully compatible with natural rubber, most olefins (LDPE) and many synthetic elastomers of low polarity. They are available in a wide range of molecular weights (MW) and softening points (solid grades 85 - 115°C and liquid grades 5 - 10°C) and provide outstanding tack. They also have a light yellow to light brown color and possess excellent heat stability.

Aromatic hydrocarbon resins (C9 Resins) are made from C9 aromatic hydrocarbons. Their composition depends on the hydrocarbon feedstock (coal tar, crude oil). The most important base monomers are indene, methyindenes, dicyclopentadiene, styrene, alpha-methylstyrene and various vinyl toluenes. These resins are available in a wide range of softening points. Compared to C5 resins, they have a much higher melt viscosity, are of darker color (dark yellow to brown)2 and have higher softening point ranging from about 100 to 150°C.3 C9 resins are very versatile resins that are compatible with many polymers.

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Hydrocarbon resins are used as tackifiers, performance modifiers and homogenizing agents. They are extensively used in the manufacture of rubbers, coatings, printing inks, and adhesives. The largest market for hydrocarbon resins are hot melts, PSA tapes and labels. They are important ingredients in many rubber adhesive formulations, particularly synthetic rubbers that are less tacky than natural rubber. They improve tack, peel strength, and increase the glass transition temperature, which in turn improves shear strength. In paints, they provide superior Pigment wetting, enhanced adhesion, gloss, and film hardness. They also improve flow and leveling, reduce VOCs and provide improved mildew and water resistance.