RIASORB® UV-622

Identification & Functionality

Chemical Family

Hindered Amine Light Stabilizer (HALS)

Chemical Name

Butanedioc acid, dimethylester, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol

CASE Ingredients Functions

Light Stabilizer

Plastics & Elastomers Functions

Light Stabilizer,

Stabilizer,

UV Absorber

CAS No.

65447-77-0

Technologies

CASE Ingredients,

Elastomers,

Plastics

Product Families

CASE Ingredients — Additives

Functional Additives

Elastomers — Elastomer Additives

Antioxidants & Stabilizers

Plastics — Polymer Additives

Antioxidants & Stabilizers

Chemical Structure

Molecular Formula

(C₁₇H₃₁NO₄)n

Features & Benefits

CASE Ingredients Features

Good Heat Stability,

Low Migration,

Low Volatility,

UV Resistance

Materials Features

Excellent Compatibility,

Good Thermal Stability,

Good UV Protection,

Heat Aging Resistant,

Low Melting Point,

Low Migration,

Low Volatility

Applications & Uses

Compatible Polymers & Resins

Acrylics,

Polyamides,

Polyesters,

Polyethylenes (PE),

Polyoxymethylene (POM),

Polypropylenes (PP),

Polyurethanes (PU)

Coating Type

Powder Coating

Applications

• RIASORB® UV 622 is a polymeric hindered amine light stabilizer (HALS) of N R type that protects polymers from degrada tion due to ultraviolet radiation and long term heat aging.
• RIASORB ® UV 622 exhibits good compatibility in a wide range of polymers, very low volatility, low migration when using in cleaner surfaces, and excellent thermal stability at normal processing temperatures. RIASORB ® UV 622 has a low melting range that makes it effective for use in polyester, acrylic, PP, PE, elastomers, adhesives, and powder coatings. To optimize weathering performance in outdoor use, RIASORB ® UV 622 can be used in combination with phenolic & phosphite antioxidants, low molecular weight HALS, and UV absorbers. RIASORB ® UV 622 has antagonistic effect with thioether antioxidants such as DSTP or DLTP.

Properties

Physical Form

Powder,

Solid

Appearance

White coarsely ground powder

Physical Properties

	Value	Units	Test Method / Conditions
Melting Range	50 - 70	℃	—

Solubility

	Value	Units	Test Method / Conditions
Acetone (at 25℃)	8	g/100g	—
Butyl Acetate (at 25℃)	15	g/100g	—
Diethylene Glycol Monobutyl Ether (at 25℃)	15	g/100g	—
Ethanol (at 25℃)	max. 0.5	g/100g	—
Methyl N-Amyl Ketone (at 25℃)	14	g/100g	—
n-Hexane (at 25℃)	max. 0.5	g/100g	—
PMA (at 25℃)	max. 0.5	g/100g	—
Solvesso 100 (at 25℃)	14	g/100g	—
Water Content (at 25℃)	max. 0.5	g/100g	—
Xylene (at 25℃)	8	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.

Packaging & Availability

Packaging Type

Cartons

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.