(1)Product Name: Optical Brightener OB*1

(2)Chemical Name:2,*-(4,4'-Vinyl Biphenyl)Dual Benzoxazole

(3)Product Technical Index: Molecular Formula: C*8H*8N2O2

                                        Molecular Weight:**4.4

                                        Purity:*9%Min

                                        Granularity:**0 mesh min

                                        Appearance: Bright Yellow Crystalline Powder

                                        Melting Point:******9

                                        Absorption Spectrum Maximum:**4nm

                                        Fluorescence-emission wavelength maximum:**4nm

(4)Application: optical brightener OB*1 is a highly efficient optical brightener used for lanon and widely applied to ABS,PS,HIPS,PA,PC,EVA and hard PVC etc. its features include admirable whitening effect,excellent thermal stability and very fewer usage amounts.

(5)Usage Amount: the dosage of optical brightener OB*1 should be added to per **0kg of polymer( just for reference)

Transparent: dosage0.*****0.**5%(2.5g*5g)

General Dosage:0.*****0.**5%(2.5g**5g) no more than 0.*3%(*0g)

When you append any ultraviolet absorbents,take care of adjusting the optimum dosage of your optical brightener.

(6)Usage:Because the little addition of optical brightener, you should separate the brightener drastically,ensure it will be homogeneous distributed in the whole polymer.if you use the concentrated grain,it can be easier to achieve the sufficient dispersion effect.

(7)Attention:When the optical brightener was applied to PE and soft PVC,you should take cake of the dosage control. the overfull dosage may cause brightener transport phenomenon.

(8)Package:*0(*5)kg/cardboard bucket(lined with double layer plastic bag)

5kg/carton(lined with double layer plastic bag)

1kg/carton(lined with double layer plastic bag)