RIASORB® UV-770DF

Identification & Functionality

Chemical Family

Hindered Amine Light Stabilizer (HALS)

Chemical Name

Bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate

Plastics & Elastomers Functions

Light Stabilizer,

Stabilizer,

UV Absorber

CAS No.

52829-07-9

EC No.

258-207-9

Technologies

Elastomers,

Plastics

Product Families

Elastomers — Elastomer Additives

Antioxidants & Stabilizers

Plastics — Polymer Additives

Antioxidants & Stabilizers

Chemical Structure

Molecular Formula

C₂₈H₅₂N₂O₄

Features & Benefits

Materials Features

Excellent Compatibility,

Excellent Light Stability,

Good Dispersibility

Applications & Uses

Compatible Polymers & Resins

Acrylonitrile Butadiene Styrene (ABS),

Acrylonitrile Styrene Acrylate (ASA),

Ethylene Propylene Diene Monomer (EPDM),

Polyamides,

Polyoxymethylene (POM),

Polypropylenes (PP),

Polyurethanes (PU),

Styrene Acrylonitrile (SAN),

Thermoplastic Polyolefins (TPO)

Plastics & Elastomers End Uses

Film,

Tape

Applications

RIASORB^® UV-770DF is recommended to be used in polypropylene; impact modified PP (TPO), EPDM, polystyrene, IPS, ABS, SAN, ASA and polyurethanes and is also effective in polyamides and polyacetals. Benefit of using RIASORB^® UV-770DF is the high light-stabilizing performance, particularly in PP thick sections. It has broad compatibility and can be easily dispersed. Compared to conventional UV-absorbers, the effectiveness of RIASORB^® UV-770DF is less dependent on the polymer’s thickness. For this reason, the use of RIASORB^® UV-770DF also provides good light stability in articles with higher specific surface, e.g. films and tapes. Use with Sulfur-containing additives such DSTP or DLTP can have a negative influence on the effectiveness of RIASORB^® UV-770DF

Properties

Physical Form

Granules,

Solid

Appearance

White granule

Physical Properties

	Value	Units	Test Method / Conditions
Melting Range	81 - 85	℃	—

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	481	—	—

Solubility

	Value	Units	Test Method / Conditions
Acetone (at 20℃)	20	g/100g	—
Chloroform (at 20℃)	45	g/100g	—
Ethyl Acetate (at 20℃)	23	g/100g	—
Methanol (at 20℃)	51	g/100g	—
Methylene Chloride (at 20℃)	56	g/100g	—
n-Hexane (at 20℃)	5	g/100g	—
Toluene (at 20℃)	50	g/100g	—
Water Content (at 20℃)	max. 0.01	g/100g	—

Regulatory & Compliance

Certifications & Compliance

ISO 14001,

OHSAS

Safety & Health

Handling & Safety

Suitable personal protected equipments are recommended to prevent direct contact with the products, which might cause skin allergies. In case of accidental contact, rinse affected areas with plenty of water.

Storage & Handling

Shelf Life

24 Months

Storage Conditions

Store the product in a cool, dry, well-ventilated area away from incompatible materials, keep tightly closed. With proper storage, shelf life of this product is 24 months from the manufacture date.