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Chemical Description:Vinylprrolidone-vinylacetate copolymer(PVP/VA)CAS No.25086-89-9Molecular and Structural Formula(C6H9NO)n (C4H6)mCharacteristics--Powder is white, and the solutions are clear and colorless to slightly yellowish, with faint characteristic odor;--Readily soluble in water and common solvent;
No. | Specification | PVP/VA64 | PVP/VA73 | PVP/VA37 | PVP/VA55 |
1 | K-Value | 26-36 | 24-32 | 28-36 | 30-36 |
2 | Solid,% | ≥95 | 48-52 | 48-52 | 48-52 |
3 | Water,% | ≤5 | Approx.50 | ≤0.5 | ≤0.5 |
4 | PH | 4-7 | 4-7 | ---- | ---- |
5 | VP+VAc | ≤0.1% | ≤0.1% | ≤0.1% | ≤0.1% |
Packaging and Storage--Powder: in 25,50kg fibre drum, inner lined with PE bags;--Solution: in50,120kg plastic drum, and 800-1,000kg IBC;--Stored in dry place at room temperature;
ApplicationBeauties industry PVP-VA series use as stiffener, its hygroscopic decrease as the ratio of vinyl acetate increase, it suits for Mousse, hair casehardened liquid, if mix with PVP-K30 can strengthen casehardened effect. Other technological usage1 Use as remoisten binder, bond for paper and coating bond;2 Use as thickener for kinds of paints and protectionability colloids; 3 Water-solubility PVP/VA64 series product is the usual emulsifier for plant protect agent and protectionability colloid; 4 The best bond of preparation effervescence troche in hydro-mixture with absolute ethyl alcoholin pharmaceutical area. The excellence does not absorpt moisture and has good crushability.PVP/VA S630