Monomer Resin

α- Methylstyrene Monomer Resin A-85

The product name：α- Methylstyrene Monomer Resin A-85
Softening point(℃)：85 ± 5 ℃
Acid number(mgKOH/g)：
Their classification：Monomer Resin
CONTACT

α- Methylstyrene Monomer Resin

OTHER NAME: α- Methylstyrene Monomer Copolymer

DESCRIPTION

α- Methylstyrene Monomer Resin utilizes α- Methylstyrene is thermally decomposed to produce chain free radicals, which are then copolymerized with other monomers using initiators to further stabilize the resulting monomer resin.

Features

Ø Wide selection range of glass transition temperature, high aromaticity, and good compatibility with SBR series materials.

Ø High viscosity, good thickening effect, and strong cohesion.

Ø It can enhance the moisture resistance of rubber and reduce the fog point with substrates such as EVA.

Ø Easily soluble in organic solvents, such as benzene, toluene, xylene, alkanes, chlorinated hydrocarbons, etc., insoluble in water and alcohols.

Technical Parameter

MODEL	A-85	A-100	A-120	A-140
Colour (Fe-Co Scale)	0.3	0.3	0.3	0.3
Softening Point (R&B, °C)	85± 5	100 ± 5	120± 5	140± 5
Acid Value (mgKOH/g) max	0.1	0.1	0.1	0.1
viscosity（mPa·s/150℃）	500± 500	1300 ± 500	900± 500	5000± 500
Bromine value(gBr/100g)max	2.2	2.2	2.2	2.2
Ash content　% max	0.02	0.02	0.02	0.02

Note: The viscosity testing method for A-120 is mPa. s/180 ° C; The viscosity testing method for A-140 is mPa. s/200 ° C

Applications

Ø Especially suitable for adjusting various indicators of adhesives such as hot melt adhesives and pressure-sensitive adhesives.

Ø Widely used in other industries such as tape, paint, road sign paint, rubber, plastic modification, etc.

Packaging

Packed in compound kraft paper bag, net weight 25kg/piece.

Storage & Transportation

It should be stored in a cool place, avoid high temperature, and should not be stored near fire.

It cannot be stored and transported together with spontaneous combustibles, strong oxidizers, and strong acids, and should be handled according to the regulations for flammable materials.

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