Manufacturing
4A Zeolite
Calcium Peroxide and Magnesium Peroxide
Cellulose Acetate Sheet
EVA Hot Melt Adhesive
NA3T (Trithio Cynauric Avid, Trisodium Salt)
Oxypower
PVC Compound
Sodium Percarbonate
Sodium Disilicate
Sodium Permanganate
Tetra Acetyl Ethylene Diamine
Uvanone 3C
Synthetic Magnesium Silicate
Transparent Iron Oxide
Uvanone 3C
Chemical and physical characteristics(*)
Chemical Name
|
2-hydroxy-4-n octyloxy benzophenone
|
CAS Number
|
1843-05-6
|
EINECS Number
|
217-42-12
|
Formula
|
C21H26O3
|
Molecular weight
|
326.4
|
Appearance
|
yellow powder
|
Melting Point (°C)
|
48
|
Bulk Density (g/cc)
|
0.50
|
TGA(air 20°C/min)
|
|
1% loss
|
210
|
2% loss
|
224
|
10% loss
|
256
|
TGA (N2 20°C/min)
|
|
1% loss
|
209
|
2% loss
|
223
|
10% loss
|
256
|
Solubility (g/100ml 25°C)
|
|
Acetone
|
>50
|
Methanol
|
2
|
Water
|
0.0
|
Ethanol
|
2.5
|
Methylethylketone
|
|
Diethylhexyl phathalate
|
25
|
Benzene
|
70
|
(*)Typical values not qualified for quality control purpose
Properties
Uvanone 3C is an UV absorber, belonging to benzophenone derivatives; its absorption capacity ranges from 260 to 350 nm with two maxima of absorbance at 288 and 328 nm. Uvanone 3C does not absorb in the visible region (Figure 1). Uvanone 3C has an excellent solubility in aromatic solvents and in some polar solvents, e.g. ketone. It has a good solubility in plasticizers, it is slightly soluble in alcohols whereas is practically insoluble in water.
Uvanone 3C is compatible with different polymeric materials, particularly with polyolefins, it is thermally stable and is compatible with a broad range of additives, normally used in polymer formulations.
Uvanone 3C shows relevant synergistic effects in combination with Hals and Ni quenchers.
Applications
Uvanone 3C is recommended for the UV Stabilization of:
Use
The concentration of Uvanone 3C depends on the required service life of the article, on the thickness, presence of pigments, etc. In general we recommend addition level ranging from 0.1 to 1% of Uvanone 3C.
Uvanone 3C is particularly recommended to protect polyolefins from UV effect either in thin or thick articles. Both pigmented and unpigmented plastics can be protected by Uvanone 3C. The best stabilization system is achieved by a combination of Uvanone 3C with a Hals (e.g. Uvasorb HA88) or with a Ni-quencher (i.e. Uvasorb Ni). The combination of Uvanone 3C with Uvasorb HA88 or Uvasorb Ni offers not only a synergistic effect, but improves the cost performance ratio.
Dosage for thin sections
In LDPE,LLDPE,EVA films the use of Uvanone 3C or its synergistic combination with a polymeric Hals or quencher for the stabilization of agricultural greenhouse is strongly suggested. Below we report some typical formulations evaluated in a temperate climate.
Expected Outdoor resistance: 10-13 months
Irradiance
(KLy)
|
Film Thickness
(mm)
|
UVASORB HA 88 FD + UVANONE 3C
(% weight)
|
|
|
100
|
-
|
-
|
<100
|
150
|
0.15-0.20
|
0.15-0.20
|
|
200
|
0.10-0.15
|
0.10-0.15
|
|
|
|
|
|
100
|
-
|
-
|
100-130
|
150
|
0.15-0.20
|
0.15-0.20
|
|
200
|
0.10-0.15
|
0.10-0.15
|
|
|
|
|
|
100
|
-
|
-
|
130-160
|
150
|
0.20-0.30
|
0.20-0.30
|
|
200
|
0.15-0.25
|
0.15-0.25
|
Expected Outdoor resistance: 18-21 months
Irradiance
(KLy)
|
Film Thickness
(mm)
|
UVASORB HA 88 FD + UVANONE 3C
(% weight)
|
|
|
100
|
-
|
-
|
<100
|
150
|
0.30-0.40
|
0.25-0.35
|
|
200
|
0.20-0.30
|
0.20-0.30
|
|
|
N.A.
|
|
|
100
|
-
|
-
|
100-130
|
150
|
0.50-0.70
|
0.30-0.40
|
|
200
|
0.40-0.60
|
0.20-0.30
|
|
|
N.A:
|
|
|
100
|
-
|
-
|
130-160
|
150
|
0.60-0.80
|
0.30-0.40
|
|
200
|
0.50-0.70
|
0.25-0.35
|
Expected Outdoor resistance: 10-13 months
Irradiance
(KLy)
|
Film Thickness
(mm)
|
UVASORB Ni + UVANONE 3C
(% weight)
|
|
|
100
|
-
|
-
|
<100
|
150
|
0.15-0.30
|
0.15-0.30
|
|
200
|
0.10-0.20
|
0.10-0.20
|
|
|
|
|
|
100
|
-
|
-
|
100-130
|
150
|
0.20-0.30
|
0.20-0.30
|
|
200
|
0.15-0.20
|
0.15-0.20
|
|
|
|
|
|
100
|
-
|
-
|
130-160
|
150
|
0.25-0.35
|
0.25-0.35
|
|
200
|
0.20-0.30
|
0.20-0.30
|
Expected Outdoor resistance: 18-21 months
Irradiance
(KLy)
|
Film Thickness
(mm)
|
UVASORB Ni + UVANONE 3C
(% weight)
|
|
|
100
|
-
|
-
|
<100
|
150
|
0.40-0.50
|
0.40-0.45
|
|
200
|
0.35-0.40
|
0.30-0.40
|
|
|
N.A.
|
|
|
100
|
-
|
-
|
100-130
|
150
|
0.60-0.70
|
0.40-0.50
|
|
200
|
0.45-0.50
|
0.35-0.45
|
|
|
N.A:
|
|
|
100
|
-
|
-
|
130-160
|
150
|
0.70-0.80
|
0.50-0.60
|
|
200
|
0.60-0.70
|
0.40-0.50
|
Dosage for thick sections
HDPE,LLDPE
|
0.20-0.50%
|
PP
|
0.30-0.50%
|
Rigid PVC
|
0.30 1.00%
|
Elastic PVC
|
0.20-0.50%
|
Toxicological information
LD50 (oral, rat) > 2000 mg/kg
Skin irritation (rabbit): non-irritant
Eye irritation (rabbit): non-irritant
Skin sensitization (guinea pig): sensitizing
Uvanone 3C is regulated for direct food contact applications. Specific information can be provided on request
Transport, storage and handling
Labeling: product not classified as hazardous according to international transport regulations. Irritant, skin sensitizer, harmful to aquatic organisms. it may cause long term adverse effects in the aquatic environment. In case of contact with skin, immediately remove contaminated clothing and rinse with plenty of water. In case of contact with eyes, wash immediately with plenty of water with eyelids held open. If symptoms developm which are apparently due to ingestion or contact with the product, seek medical advice. Do not breathe dust. Store in the original closed container in a dry cool place. Protect from light. Avoid dust formation.
For further information please refer to safety data sheet.