Antioxidant HW-245

[Trade name] Antioxidant 245; HW-245

[Chemical name]

Ethylenebis(oxyethylene)bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate]

[Structural formula]

[CAS] 36443-68-2                 [Molecular weight] 586.8

[Specific gravity] 1.14 (20^oC) 
[Specification]

[Use]
This product is used as an antioxidant in polymers such as HIPS, MBS, ABS, engineering plastics like POM and PA, and polyurethanes such as spandex to improve processing and long-term thermal stability. It also serves as an effective chain terminator in PVC polymerization processes.

[Packaging and Storage]
Packed in composite kraft paper bags, 20kg/bag; or in cartons, 25kg/box. Should be stored in a cool, dry, and well-ventilated place; avoid contact with food and beverages. Also avoid exposure to sparks, dust, and static electricity. Suitable for road, sea, and rail transport; protect from sunlight, heat, and moisture. Shelf life: 2 years at room temperature.

[Use]
The product is used as an antioxidant in styrene polymer (such as HIPS, MBS, ABS), Engineering plastics (such as POM, PA) and polyurethane (such as urethane elastic fiber).

[Safety]
Rabbits on the test indicate that the goods are no stimulation to the skin and no adverse reactions. Many countries allow the goods to contact the food packaging materials.
[Packing and storing]
In thick paper bag, net wt.20kg, or carton, net wt.25kg; maximum recommended storage time under suitable conditions (dry, cool, well-ventilated) beyond testing date 24 months.