Bottom price China Cosmetic Raw Material Pvp Va 64 Powder, Vp/Va Copolymer Stock Supply
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*Cosmetic Grade VP/VA Copolymers with different rations of N-Vinylpyrrolidone to Vinyl Acetate,soluble in most organic solvents.Which exists in powder,water solution and ethnol solution form. VP/VA Copolymers’ aqueous solutions are non-ionic, neutralization not required, Resultant films are hard, glossy, and water-removable; Tunable viscosity, softening point and water sensitivity depending on VP/VA ratio; Good compatibility with many modifiers, plasticizers, spray propellants and other cosmetic ingredients,and the hydroscopicity decreases in proportion to the ration of Vinyl acetate.
Key Technical Parameters:
|
Product |
PVP/VA 64 Powder |
PVP/VA 64W |
PVP/VA 73W |
| Appearance | White to creamy white,free-flowing powder | Transparent to slight yellowish liquid | |
| VP/VA | 60/40 | 60/40 | 70/30 |
| K Value | 27-35 | 27~35 | 27~35 |
| Monomers | 0.1% max. | 0.1% max. | 0.1% max. |
| Water | 5.0% max. | 48~52% | 48~51% |
| Solid Content | 95% max. | 48~51% | 48~52% |
| Sulphated Ash | 0.1% max. | 0.1% max. | 0.1% max. |
| pH Value(10% in water) | 4.0~7.0 | 4.0~7.0 | 4.0~7.0 |
Applications:
VP/VA Copolymers are the excellent choice as film forming agent and hair-styling agent,which are suitable for fourmulations which used as film forming and viscosity modification,especially in hair styling products, such as Hair Gels,Aerosol gas sprays,Wet look sprays.
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*Pharmaceutical Grade VP/VA Copolymer-Copovidone with 60/40 ration of N-Vinylpyrrolidone to Vinyl Acetate,soluble in most organic solvents.Which exists in powder,Copovidone forms hard,water-removable and glossy films,it has excellent compatibility with many plasticizers and modifiers. Good solubility in water,alcohol and other organic solvents.
Key Technical Parameters:
|
Appearance |
White or yellowish-white powder or flakes,hygroscopic |
|
Viscosity(Express as K Value) |
25.20~30.24 |
|
Solubility |
Freely soluble in water,in alcohol and in methylene chloride |
|
Identifications |
A.Infrared Absorption |
|
B.A red colour appears |
|
|
C.A violet colour appears |
|
|
Peroxides(Expressed as H2O2) |
400 ppm max. |
|
Hydrazine |
1 ppm max. |
|
Monomers(VP+VA) |
0.1% max. |
|
Impurity A(2-Pyrrolidone) |
0.5% max. |
|
Heavy Metals(as Pb) |
20 ppm max. |
|
Loss on Drying |
5.0% max. |
|
Sulphated Ash |
0.1% max. |
|
Ethenyl Acetate Content |
35.3~42.0% max. |
|
Nitrogen Content |
7.0~8.0 % |
Applications:
Copovidone mainly used as water-soluble binder and dry binder in wet/direct granulation processes,also it can be used as film forming materials.
*Water soluble tablet binder,suitable for wet or dry granulation/direct compression processes.
*Film Former:permeable film coating for tablet and sugar coatings to protect against splitting,decrease moisture sensitivity and provide good film adhesion.
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*Technical Grade VP/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 |
PVP/VA 64 Powder |
PVP/VA 64W |
PVP/VA 73W |
|
Appearance |
White to creamy white powder |
Transparent to slight yellowish liquid |
|
|
VP/VA |
60/40 |
60/40 |
70/30 |
|
K Value |
27-35 |
27~35 |
27~35 |
|
Monomers |
0.2% max. |
0.2% max. |
0.2% max. |
|
Water |
5.0% max. |
48~52% |
48~51% |
|
Solid Content |
95% max. |
48~51% |
48~52% |
|
Sulphated Ash |
0.1% max. |
0.1% max. |
0.1% max. |
|
pH Value(10% in water) |
4.0~7.0 |
4.0~7.0 |
4.0~7.0 |
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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