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2,2'-P-?????-4H-3,1-????-4-?

2,2'-P-?????-4H-3,1-????-4-?
2,2'-P-?????-4H-3,1-????-4-? ??? ???
?? ??:
18600-59-4
???:
2,2'-P-?????-4H-3,1-????-4-?
???(??):
2,2'-P-?????-4H-3,1-????-4-?
???:
CYASORB UV-3638
???(??):
UV-3638;DXSORB? 3638;Cyasorb UV-3638;Samsorb UV-3638;UV Absorber 3638;Sinosorb? UV-3638;UV Absorber UV-3638;Light Stablizer UV-3638;UV ABSORBER TRUELICHT UV 3638;2,2′-(p-Phenylen)di-3,1-benzoxazin
CBNumber:
CB7323018
???:
C22H12N2O4
??? ??:
368.34
MOL ??:
18600-59-4.mol
MSDS ??:
SDS

2,2'-P-?????-4H-3,1-????-4-? ??

???
315-317 °C
?? ?
522.8±20.0 °C(Predicted)
??
1.41±0.1 g/cm3(Predicted)
???
0-0Pa at 20-25℃
?? ??
2-8°C
??? ??
powder to crystal
?? ?? (pKa)
1.98±0.20(Predicted)
??
White to Orange to Green
???
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 ??????
18600-59-4(CAS DataBase Reference)
EPA
4H-3,1-Benzoxazin-4-one, 2,2'-(1,4-phenylene)bis- (18600-59-4)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 43-53
????? 24-37-61
HS ?? 2934.99.4400
???? ?? KE-28349
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H317 ????? ?? ??? ??? ? ?? ?? ??? ?? ?? 1 ?? GHS hazard pictograms P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H413 ??? ??? ?? ????? ??? ??? ?? ?? ????? ?? - ?? ?? 4
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P272 ??? ??? ??? ??? ???? ???.
P273 ???? ???? ???.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P333+P313 ????? ?? ??? ???? ???? ??·??? ????.
P501 ...? ??? / ??? ?? ???.
NFPA 704
0
2 0

2,2'-P-?????-4H-3,1-????-4-? C??? ??, ??, ??

??

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.

??? ??

white to off-white crystalline powder.

??

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.

?? ??

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.

2,2'-P-?????-4H-3,1-????-4-? ?? ?? ? ???

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2,2'-P-?????-4H-3,1-????-4-? ?? ??

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