Optical brightener OB-1

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Optical brightener OB-1

Code:
Molecular formula:	C28H18N2O2
Molecular weight:	414.4547
Molecular Structure:
CAS#:	1533-45-5
EINECS#:	216-245-3

Specifications:	1.Chemical name: 2,2-(1,2-Ethenediyldi-4, 1-phenylene) bisbenzoxazole Molecular weight: 414.4 C.I: 393 2.Specifications Ash % 0.3max Empirical Formula C28H18N2O2 Melting Point(DTA),C 353-359 Appearance Yellowish Green Powder Odor Free of odor Volatile Content % 0.3max Assay % 99min Particle Size 200 meshes 3.Performance Features�� 1)Of high brightening intensity and strong fluorescence. 2) Of wide usage in brightening polyester, nylon fiber and all kinds of plastics. 3) Carries good resistance to high temperature. 4.Scope of Application�� 1)Goes for the brightening of such chemical fibers of polyester, nylon and polyprolylene. 2) Goes for the whitening and brightening of polypropylene plastic, hard PVC, ABS, EVA, polystyrene, polycarbonate, etc. 3) Applicable to be added in the general polymerizations of polyester and nylon. 5.Application Methods�� Recommended quantity: brightening agents of OB-1 in every 1000kg raw material: 1) Of 75��200g in EVA, polyprolylene, nylon, polycarbonate, and so on. 2)Of 75��300g in terylene fiber. 6.Packing Storage��Packed in 15kg×1.5kg×4 tanks or 5kg×2 paper boxes at cool and dry places to be protected from light.

liquid

Quality:
Our company is a professional production of Plastic raw material and Metal for many years, our products have exported to Germany, Spain, UK, USA, Australia, Middle East, and so on other countries, and we have got very good feedback from our customers.so you can trust us.
And we are the manufactory, so you don’t need to doubt the quality.
Payment method: for example T/T, D/A, L/C, Westerm Union,other
1)We will ship the goods within 5days after get your payments.If you want to cancel or change order, please tell me within 24hours after you finish the payment…So we both can make the best of the bad bargain.
2)We will ship the goods that you order from us by HKEMS, DHL, UPS, TNT and EUB.We will decided to choose which courier depend on different countries.To find the best way to delivery the goods for you.
3)As usual you can get the goods with in 4-7days.If the goods were lost or not received for other reasons, please contact us immediately.

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FAQ

Q1: Can i get some samples
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.

Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T, Western Union,BTC,MoneyGram

Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the
samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q4:What’s your MOQ
A:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Q5: How about delivery lead time
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)

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