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    Optical Brighteners Current Position: home > Optical Brighteners

    KCB is a naphthalene-benzoxazole class optical brightener suitable synthetic fiber and plastic products.

    Structural Formula:

    Details  :
    CAS No: 5089-22-5
    Appearance: yellow crystal powder
    assay:≥99.00% Ash:≤0.1%

    Melting Point: 210-212?C
    Properties:

    KCB is insoluble in water, but is soluble in most organic solvents, it has blue bright shade. It is similar to Hostalux KCB and Hoechst T1258.UV Max absorption spectral position: 370nm

    Application:
    Fluorescence brightener KCB has strong bleaching effect, it can be used in synthetic fiber and plastic products, including EVA ,PE, PP, PVC, PS, ABS and polyester. It also can be used in paint and coating
    Method of usage:

    The recommended loading concentration is 0.01%-0.03%, Fluorescence brightener KCB 10-30g/100g material, pls add the dose if be used together with UV absorbers. It can be changed depending on substrate, processing conditions, and long-term stability requirements.

    Please Noted: above recommended loading can be a reference. Exact loading must be

    determined by compositions of the specific polymer system

    Packing: 25kg fiber drums or complex bags

     
     
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        Additives
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    -Antioxidants
    -UV Absorbers
    -Photo Initiators
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        Heat transfer fluid
    -RFCTHERM-400
    -RFCTHERM-PHT350
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    -M/DBT Dielectric Oil
    -PEPE Dielectric Oil
    -PXE
        Intermediates
    -Biphenyl
    -Diphenyl ether
    -BCMB
    -p-Toluic acid
    -2-Chlorothioxanthone
    -Terephthalaldehyde
    -Cyclohezane Carboxylic Acid
    -2-aminophenol
    -m-Toluic acid
    -o-Toluic acid
    -4-tert-Butylbenzoic acid
    -4-methylbenzene methanol
    -3-Chloro-2-methylaniline
    -2-Trifluoromethylthioxanthone
    -Decahydronaphthalene
    -p-Toluoyl Chloride
    -Benzaldehyde-2-sulfonic acid sodium
    -p-Tolunitrile
    -m-Tolunitrile
    -o-Tolunitrile
    -1,2,3,4-Tetrahydronaphthalene
    -4-Formyl Benzoic Acid
    -1,4-Bis(chloromethyl)benzene
    -4-Benzyloxycinnamic acid
    -4-tert-Butylbenzoic acid
    -1,2,3,5-Tetraacetyl-B-D-Ribofuranose
    -m-Phthalaldehyde
    -3,4-Dihydroxybenzoic acid
    -4,4'-Dihydroxy benzophenone
    -P-Terphenyl
    -Salicylaldehyde
    -4-ADPA
    -o-Phthalaldehyde
    -Sulfolane
    -1-Methylpyrrolidine
    -4-Fluorocinnamic acid
    -Sulfobutyl Ether-β-cyclodextrin
    -2-Iodobenzoic acid
    -4,4'-Oxydianiline
    -Isophthaloyl dichloride
    -Terephthaloyl Dichloride
    -o-Toluoyl Chloride
    -m-Toluoyl Chloride
    -2,4-Dihydroxy benzophenone
    -2,5-Dihydroxy toluene
    -2,6-Difluoroaniline
    -2,6-Difluorobenzamide
    -2,6-Difluorobenzonitrile
    -Nitrogen trifluoride
    -1,3-cyclohexanedione
    -2-Bromo-6-Cyanopyridine
    -2-Bromophenyl Methyl Sulfide
    -2-Bromophenyl Methyl Sulfone
    -2-Bromophenyl methyl sulfoxide
    -2-Chloro-5-nitro benzoic acid
    -2-Chloro-6-nitrotoluene
    -2-Methylamino-5-chlorobenzophenone
    -5-chloro-2-methyl aniline
    -2-chlorobenzaldehyde
    -4,4'-Dibromobiphenyl
    -4,4'-Diiodobiphenyl
    -4,4'-Bis(methoxymethyl)- 1,1'-Biphenyl
    -4,4'-Bis(hydroxymethyl)biphenyl
    -Biphenyl-4,4'-dicarboxylic Acid
    -p-Terphenyl
    -4,4'-Dimethylbiphenyl
    -4,4'-Biphenyldicarboxaldehyde
    -4-Biphenyl acetic Acid
    -4-Hydroxy-(1,1'-biphenyl)-4'-carboxylic acid
    -2-Cyano-4'-methyl biphenyl
    -4-Cyanobiphenyl
    -4-Biphenylcarboxaldehyde
    -4-Phenylbenzoic acid
    -4-Bromophenyl methyl sulfone
    -4-Bromophenyl methyl sulfoxide
    -4-Chloro benzophenone
    -4-Hydroxy benzophenone
    -4-Hydroxycinnamic acid
    -4-Hydroxycoumarin
    -4-(methylamino)benzoic acid
    -4-Nitroaniline
    -4,4'-Stilbene dicarboxylic acid
    -2- Methylnaphthalene
    -BIS(pinacolato)diboron
    -Coumarin
    -2-Cyanobenzyl chloride
    -Ethyl-(s)-4-chloro-3-hydroxybutyrate
    -Fluorobenzene
    -Trifluoromethanesulfonic anhydride
    -Trifluoromethanesulfonic acid
    -2,6-Dichlorotoluene
    -o-tert-Butylphenol
    -O-Methyl benzoquinone
    -4-Acetylbiphenyl
    -p-tert-Butylphenol
    -2,6-DI-TERT-BUTYLPHENOL
    -2,4-Di-tert-butylphenol
    -7-APRA
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    -FWA ER-II(C.I. 199:1)
    -FWA ER-III(C.I. 199:2)
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