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Product Introduction
CYASORB UV-3638 Basic information
Product Name: CYASORB UV-3638
Synonyms: 2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE 18600-59-4 UV-3638;18600-59-4 UV-3638 2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one);Cyasorb UV-3638 2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE;-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE;2-[4-(4-oxo-3,1-benzoxazin-2-yl)phenyl]-3,1-benzoxazin-4-one;1-Benzoxazin-4-one,2,2’-(1,4-phenylene)bis-4H-3;2,2′-(p-Phenylen)di-3,1-benzoxazin;2,2''-P-PHENYLENEBIS-4H-3,1-BENZOXAZIN-4-ONE
CAS: 18600-59-4
MF: C22H12N2O4
MW: 368.34
EINECS: 418-280-1
Product Categories:
Mol File: 18600-59-4.mol
Product Name: CYASORB UV-3638
Synonyms: 2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE 18600-59-4 UV-3638;18600-59-4 UV-3638 2,2'-Benzene-1,4-diylbis(4H-3,1-benzoxazin-4-one);Cyasorb UV-3638 2,2'-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE;-(1,4-PHENYLENE)BIS-4H-3,1-BENZOXAZIN-4-ONE;2-[4-(4-oxo-3,1-benzoxazin-2-yl)phenyl]-3,1-benzoxazin-4-one;1-Benzoxazin-4-one,2,2’-(1,4-phenylene)bis-4H-3;2,2′-(p-Phenylen)di-3,1-benzoxazin;2,2''-P-PHENYLENEBIS-4H-3,1-BENZOXAZIN-4-ONE
CAS: 18600-59-4
MF: C22H12N2O4
MW: 368.34
EINECS: 418-280-1
Product Categories:
Mol File: 18600-59-4.mol
CYASORB UV-3638 Chemical Properties
Melting point 315-317 °C
Boiling point 522.8±20.0 °C(Predicted)
density 1.41±0.1 g/cm3(Predicted)
vapor pressure 0-0Pa at 20-25℃
storage temp. 2-8°C
pka 1.98±0.20(Predicted)
form powder to crystal
color White to Orange to Green
Water Solubility 112μg/L at 20℃
InChI InChI=1S/C22H12N2O4/c25-21-15-5-1-3-7-17(15)23-19(27-21)13-9-11-14(12-10-13)20-24-18-8-4-2-6-16(18)22(26)28-20/h1-12H
InChIKey BBITXNWQALLODC-UHFFFAOYSA-N
SMILES C1(C2OC(=O)C3=CC=CC=C3N=2)=CC=C(C2OC(=O)C3=CC=CC=C3N=2)C=C1
LogP 4.7 at 22℃
CAS DataBase Reference 18600-59-4(CAS DataBase Reference)
EPA Substance Registry System 4H-3,1-Benzoxazin-4-one, 2,2'-(1,4-phenylene)bis- (18600-59-4)
Safety Information
Hazard Codes Xi
Risk Statements 43-53
Safety Statements 24-37-61
TSCA TSCA listed
HS Code 2934.99.4400
MSDS Information
CYASORB UV-3638 Usage And Synthesis
Description CYASORB UV-3638 is a highly efficient and non-staining UV absorber, which is distinguishied by its superiorly low volatility, and its strong & broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. White UV-3638 is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, PC,PET,PBT and PPO. UV-3638 is also highly effective in other poymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term permanet UV light stability is required.
Chemical Properties white to off-white crystalline powder.
Uses Cyasorb 3638 offers very strong and broad UV absorption with no color contribution. Possesses very good stabilization for polyesters(PET) and polycarbonates(PC).3638 is based on a benzoxaxinone structure which delivers a short-term heat stability up to 350 °C and a long term heat stability up to 160 °C.
UV 3638 is ideal for film/sheet/plate applications such as solar cell, window film, etc.
Application UV-3638 can be readily incorporated in the polymers within the dosage range of 0.1-10% by weight through conventional techniquire such as powder, solution, or melt blending(e.g. extrusion compounding). It can be used alone or in a variety of blends and combinations with antioxidants, phosphites and other light stabilizers where often a synergistic performance is observed. Basically, the dosage level for UV-3638 can be expectd to be 1/3 of the exsited benzotriazole type UV absorbers with the nearly same efficency of UV screenning.
Engineering plastics (Nylone/plycarbonate/PET/PBT/PPO/PPS..etc)
Because of it's superior heat resistance, so its volatility is extremely low during the processing of engineering plastics at temperatures above 300°C. Also, it offering a very strong & broad UV absorption with no color contribution and exllent stabilzation. so it will allow the recycling or reworking of scrap without significant lowss of the UV light stability. UV-3638 meets the stringent requirement of applications where light transmission and optical properties are critical.
Other polymers
Because of its high absorptivity in the range of 300-360nm, plus its extremely low volatility, assures maximal resistance to UV light degradation even during long term indoor and out door exposure.
Melting point 315-317 °C
Boiling point 522.8±20.0 °C(Predicted)
density 1.41±0.1 g/cm3(Predicted)
vapor pressure 0-0Pa at 20-25℃
storage temp. 2-8°C
pka 1.98±0.20(Predicted)
form powder to crystal
color White to Orange to Green
Water Solubility 112μg/L at 20℃
InChI InChI=1S/C22H12N2O4/c25-21-15-5-1-3-7-17(15)23-19(27-21)13-9-11-14(12-10-13)20-24-18-8-4-2-6-16(18)22(26)28-20/h1-12H
InChIKey BBITXNWQALLODC-UHFFFAOYSA-N
SMILES C1(C2OC(=O)C3=CC=CC=C3N=2)=CC=C(C2OC(=O)C3=CC=CC=C3N=2)C=C1
LogP 4.7 at 22℃
CAS DataBase Reference 18600-59-4(CAS DataBase Reference)
EPA Substance Registry System 4H-3,1-Benzoxazin-4-one, 2,2'-(1,4-phenylene)bis- (18600-59-4)
Safety Information
Hazard Codes Xi
Risk Statements 43-53
Safety Statements 24-37-61
TSCA TSCA listed
HS Code 2934.99.4400
MSDS Information
CYASORB UV-3638 Usage And Synthesis
Description CYASORB UV-3638 is a highly efficient and non-staining UV absorber, which is distinguishied by its superiorly low volatility, and its strong & broad range of UV light absorption together with no color contribution & excellent stabilization for polymers. White UV-3638 is designed to meet the demanding high temperature requirements for processing engineering plastics such as Nylon, PC,PET,PBT and PPO. UV-3638 is also highly effective in other poymers such as polyamides, polyacetals, polyolefins fibers, styrenics, elastomers where long term permanet UV light stability is required.
Chemical Properties white to off-white crystalline powder.
Uses Cyasorb 3638 offers very strong and broad UV absorption with no color contribution. Possesses very good stabilization for polyesters(PET) and polycarbonates(PC).3638 is based on a benzoxaxinone structure which delivers a short-term heat stability up to 350 °C and a long term heat stability up to 160 °C.
UV 3638 is ideal for film/sheet/plate applications such as solar cell, window film, etc.
Application UV-3638 can be readily incorporated in the polymers within the dosage range of 0.1-10% by weight through conventional techniquire such as powder, solution, or melt blending(e.g. extrusion compounding). It can be used alone or in a variety of blends and combinations with antioxidants, phosphites and other light stabilizers where often a synergistic performance is observed. Basically, the dosage level for UV-3638 can be expectd to be 1/3 of the exsited benzotriazole type UV absorbers with the nearly same efficency of UV screenning.
Engineering plastics (Nylone/plycarbonate/PET/PBT/PPO/PPS..etc)
Because of it's superior heat resistance, so its volatility is extremely low during the processing of engineering plastics at temperatures above 300°C. Also, it offering a very strong & broad UV absorption with no color contribution and exllent stabilzation. so it will allow the recycling or reworking of scrap without significant lowss of the UV light stability. UV-3638 meets the stringent requirement of applications where light transmission and optical properties are critical.
Other polymers
Because of its high absorptivity in the range of 300-360nm, plus its extremely low volatility, assures maximal resistance to UV light degradation even during long term indoor and out door exposure.