Product Name:Copolymer of Vinylpyrrolidone with Vinyl Acetate
INCI Name:VP/VA Copolymer
CAS NO.:25086-89-9
Properties:PVP/VA Copolymers are with different rations of vinylpyrrolidone to vinyl acetate and available as white powder or clear transparent solutions in water,ethanol and isopropanol.It’s forms hard,glossy,flexible,water-removable,oxygen permeable films which adhere to glass,plastics and metals,these properties,coupled with the ability to control their hydrophilicity through monomer composition,lead to extensive its industrial application.
Key Technical Parameters:
Product
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PVP/VA 64 Powder
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PVP/VA 64W
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PVP/VA 73W
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Appearance
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White to creamy white,free-flowing powder
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Transparent to slight yellowish liquid
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VP/VA
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60/40
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60/40
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70/30
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K Value
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27-35
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27~35
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27~35
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Monomers(Residue VP+Residue VA)
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0.2% max.
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0.2% max.
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0.2% max.
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Water
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5.0% max.
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48~52%
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48~51%
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Solid Content
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95% max.
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48~51%
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48~52%
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Sulphated Ash
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0.1% max.
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0.1% max.
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0.1% max.
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pH Value(10% in water)
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4.0~7.0
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4.0~7.0
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4.0~7.0
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Applications:VP/VA copolymers widely industrial application are in hot melt adhesives,photoresist binders and coatings for ink jet media paper,plastic film,Agriculture & other substrates.
*Coatings on paper,film,other substrates *Water remoistenable adhesives
*Water soluble adhesives *Decorative and protective coatings
*Photoresist/solder mask binders *Agricultural chemicals
*Bioadheives *Protective masks *Plant leaf sprays
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