PAMS Resin Alpha Methyl Styrene Resin

The Alpha Methyl Styrene resin is the monomer petroleum resin obtained by the copolymerization of α-methyl styrene and the second monomer. AMS Resin is a water-white, transparent, low-molecular-weight thermoplastic resin with a softening point of 80–150 °C. Compatible with numerous polymers, it lowers processing temperatures by 15–20 °C while markedly improving peel strength, hardness, and aging resistance. Low-odor and low-VOC, it is widely used for tackifying, reinforcing, modifying, and eco-friendly formulations.

Item NO.:
PAMS Resin
Property:
AMS Resin is a water-white, transparent, low-molecular-weight thermoplastic resin with a softening point of 80–150 °C. Compatible with numerous polymers, it lowers processing temperatures by 15–20 °C while markedly improving peel strength, hardness, and aging resistance. Low-odor and low-VOC, it is widely used for tackifying, reinforcing, modifying, and eco-friendly formulations.

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PAMS Resin Alpha Methyl Styrene Resin

Alpha-Methyl Styrene Resin

– Key Features

- High-aromatic petroleum resin copolymerized from α-methyl styrene and a co-monomer
- Excellent compatibility with SBR, NR and other synthetic rubbers
- High viscosity and strong tack, instantly boosting peel and cohesive strength
- Formulation flexibilizer for adhesives: raises holding power and aging resistance
- Improves rubber compound anti-slip and wet-grip performance

Specifications

Items	PAMS 85	PAMS 100	PAMS 110	PAMS 120	PAMS 130	PAMS 140
Appearance	Colorless, transparent granule
Softening Point (°C)	80-90	100-109	110-119	120-129	130-140	136-145
Color (Gardner)	0-1
Yellow Index (YI)	0-9.5

Application

1. PSA & HMA: acts as a tackifying resin, instantly boosting peel strength and heat resistance.

2. Plastic modification: processing aid for PVC/TPU extrusion & injection, lowering melt temperature, improving flow and stiffness.

3. Rubber tire: tread moisture-resistant modifier that enhances wet grip and reduces heat build-up; also reinforces TPE, wire coatings, ionic elastomers.

4. Coatings & specialty molding: increases gloss, abrasion resistance and drying speed while serving as a reinforcing filler.

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