RIASORB® UV-9

Identification & Functionality

Chemical Family

Benzophenones

Chemical Name

Oxybenzone

CASE Ingredients Functions

Light Stabilizer

Plastics & Elastomers Functions

Light Stabilizer,

Stabilizer,

UV Absorber

CAS No.

131-57-7

EC No.

205-031-5

Technologies

CASE Ingredients,

Plastics

Product Families

CASE Ingredients — Additives

Functional Additives

Plastics — Polymer Additives

Antioxidants & Stabilizers

Chemical Structure

Molecular Formula

(C₃₅H₆₆N₈)n (n=4 - 5)

Features & Benefits

CASE Ingredients Features

Resistance To Extraction

Materials Features

Crystalline,

Good Thermal Stability,

Good UV Protection,

Sunlight Resistant

Applications & Uses

Compatible Polymers & Resins

Poly(Methyl Methacrylate) (PMMA),

Polyesters,

Polystyrenes (PS),

Polyvinyl Chloride (PVC)

Applications

RIASORB^® UV-944 areas of application include polyolefins (PP, PE), olefin copolymers such as EVA as well as blends of polypropylene with elastomers. In addition in certain instances RIASORB^® UV-944 is highly effective in polyacetals polyamides, polyurethanes, flexible and rigid PVC, as well as PVC blends and in certain styrenic elastomer and adhesive specialty applications. RIASORB^® UV-944 imparts excellent light stability to thin articles, particularly fibers and films. In thick cross sections, it is specifically suitable for polyethylene articles. RIASORB^® UV-944 is highly effective as a long-term thermal stabilizer in thin and thick articles and shows good extraction resistance. Use with sulfur-containing additives such DSTP or DLTP can have a negative influence on the effectiveness of RIASORB^® UV-944.

Properties

Physical Form

Powder,

Solid

Appearance

Pale yellow crystalline powder

Physical Properties

	Value	Units	Test Method / Conditions
Melting Range	62 - 65	℃	—

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	228.24	—	—

Solubility

	Value	Units	Test Method / Conditions
Ethyl Alcohol (at 25℃)	5	g/100g	—
Ethyl Glycol (at 25℃)	0.7	g/100g	—
Isopropyl Alcohol (at 25℃)	5	g/100g	—
Propylene Glycol (at 25℃)	1.8	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.

Storage & Handling

Shelf Life

12 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.