Ultraviolet absorbent Pamsorb-531| Polymate Additives Co., Limited|Chimassorb 81 (Ciba SC) / Cyasorb UV-531 (Cytec)/Lowilite 22 (Chemtura)

Polymate Additives Co. |Limited

Add: 206Shi, 101Dong, Huaqiaocheng

Pukou, Nanjing, China, 210031

Tel: +86 (0)25 570 11575

Fax: +86 (0)25 570 16494

Email: polymateadditives@gmail.com

Web: www.PolymateAdditives.com

	Products

.		Antioxidants
		Phenolic Antioxidants
		Plaox-1010, Plaox-1076, Plaox-1098 Plaox-1024, Plaox-3114
		Organophosphite Antioxidants
		Plaox-168, Plaox-626
		Amine Antioxidants
		Plaox-BODPA, Plaox-DNDPA Plaox-DODPA, Plaox-DCDPA
		Thioester Antioxidants
		Plaox-DLTDP, Plaox-DSTDP
		Blended Antioxidants
		Plaox-B215, Plaox-B225

		Heat stabilizers
		Organophosphites
		Pherst-TPP, Pherst-ODPP

.		Light stabilizers
		HALS (hindered amine light stabilizers)
		Palst-770, Palst-622, Palst-944 Palst-783, Palst-791 Palst-3346, Palst-3529
		UVA (Ultraviolet absorbents)
		Pamsorb-531, Pamsorb-P Pamsorb-234, Pamsorb-326 Pamsorb-327, Pamsorb-328 Pamsorb-1164, Pamsorb-1577

.		Flame retardants
		Brominated Flame retardants
		Plamtar-TBBA, Plamtar-BDDP Plamtar-TBSBPE Plamtar-DBDPE, Plamtar-BTBPOE Plamtar-BTBPIE Plamtar-HBCD, Plamtar-TTBPC Plamtar-TBC
		Halogen free Flame retardants
		Plamtar-RDP, Plamtar-BDP Plamtar-DOPO, Plamtar-DOPO-HQ

Light stabilizers

Ultraviolet absorbents

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Ultraviolet absorbent Pamsorb-531

Chemical name: 2-Hydroxy-4-n-octoxybenzophenone Equivalent: Chimassorb 81 ( Ciba SC ) / Cyasorb UV-531 (Cytec)/Lowilite 22 (Chemtura) Molecular formula: C₂₁H₂₆O₃ Molecular weight: 326.43 CAS No.: 1843-05-6 Structural formula:

Physical properties
Appearance: Yellow powder Melting range: 47 ~ 50 °C	Flash point: Not available Specific gravity (g/cm 3 ), @20 °C: 1.16
Solubility (g/ 100g solvent), @20 °C
Water: Insoluble Benzene: 72.7	Acetone: 74.3 Ethanol : 2.6

Specifications
Appearance: Yellowish crystal powders Assay: 99.0% min Melting point: 47.0 ~ 49.0 °C Ash: 0.1% max	Volatile: 0.5% max Transmittance (425nm): 97.0% min Transmittance (500nm): 98.0% min

Applications
Pamsorb-531 is a benzophenonelight stabilizer, capable of absorbing the UV radiation of 240-340nm wavelength. It is of light color, non-toxicity, good compatibility, small mobility and easy processing. It is widely applied to PE,PVC,PP,PS,PC organic glass, PP fiber, ethylene-vinyl acetate etc. Moreover, it has very good light-stability on drying phenol aldehyde, varnish of alcohol, polyurethane, acrylate, expoxnamee, etc. Its dosage is recommended to be 0.1% ~ 0.5%.

Packing
25kg /bag

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HALS (hindered amine light stablizers)
Palst-770 \| Palst-622 \| Palst-944 \| Palst-783 \| Palst-791 \| Palst-3346 \| Palst-3529