exporter-edith(at)hotmail(doc)com OB-1 is used widely in the plastic market. Because of its excellent brightening ability,good thermal stability,and compatibility with many polymers. Key words: optical brightening agent OB-1, optical brightener OB-1, fluorescent brightener OB-1, optical whitening agent OB-1, brightener OB-1 Typical Properties: Chemical name: 2,2-(1,2-Ethenediyldi-4, 1-phenylene) bisbenzoxazoleMolecular weight: 414.4CAS No.: 1533-45-5C.I.: 393 Specifications: Ash % 0.3maxEmpirical Formula C28H18N2O2Melting Point(DTA),C 353-359Appearance Yellowish Green PowderOdor Free of odorVolatile Content % 0.3maxAssay % 99.5minParticle Size 200 meshes Application: For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc. Rate of use: (per 1000kg of substrate) Polyester: 75-300g EVA, PP, nylon: 75-200g Package: 25kg / fiber drum with PE liner

Optical Brightening Agent KCB can be widely used in EVA, PET, and is the best choice for making sports shoes material

KSN is a kind of high effect optical brightener.

Calcium Lignosulphonate is a kind of natural anionic surface active agent processed with sulfurous acid pulping waste through advanced production technology. It can work well with other chemicals and produce early strength agent, slow setting agent, antifreeze and pumping agent . It is widely used in various concrete projects such preformed concrete, reinforced concrete and prestressed concrete, especially applicable for commercial concrete, anti-freezing concrete, waterproof concrete, bulk concrete, pumping concrete, with high economic benefit.

Sodium Naphthalene Sulphonate Formaldehyde produces concrete with extremely workable characteristics referred to as high slump. PNS also allows concrete to be produced with very low water/cement ratios at low or normal slumps. Sodium Naphthalene Sulphonate Formaldehyde is ideal for use in prestress, precast, bridge deck or any concrete where it is desired to keep the water/cement ratio to a minimum and still achieve the degree of workability necessary to provide easy placement and consolidation