VP/VA Copolymer

Pharmacopoeia name: Covidone

INCI name: VP/VA Copolymer

CAS Number: 25086-89-9

Product form and properties：White powder or transparent, semi transparent solution, odorless or slightly characteristic odor, soluble in organic solvents such as water and ethanol; Has good adhesion, moisture absorption, film-forming properties, and surface activity.

Quality standard

Testing items	VP/VA37E	VP/VA55E(I)	VP/VA64E(W)	VP/VA73E(W)	VP/VA64(Powder)
K value	24-32	30-38	26-34	30-38	26-34
PH value (5% aqueous solution)	/	/	/	/	4-7
Moisture content/%	≤0.5%	≤0.5%	≤0.5%	≤0.5%	≤5.0%
VP residual order/ppm	≤500	≤500	≤500	≤500	≤10
VA residual order/ppm	≤300	≤300	≤300	≤300	≤10
Solid content/%	49-51%	49-51%	49-51%	49-51%	/
Burning residue/%	≤0.1%	≤0.1%	≤0.1%	≤0.1%	≤0.1%
Peroxide/ppm	/	/	/	/	≤400
Aldehyde/ppm	/	/	/	/	≤500
Heavy metal/ppm	≤10	≤10	≤10	≤10	≤10

*E -- Alcohol solution I -- Isopropanol solution W -- Water solution

Main applications and functions：

〖Biomedicine〗Copolymer of vinylpyrrolidone and vinyl acetate can be used as dry adhesive for direct compression, adhesive for wet granulation of tablets, capsules and granules, film forming agent for tablet coating, bottom coating and external spray.

〖Daily chemical care〗Copolyvinylpyrrolidone, that is, the copolymer of vinylpyrrolidone and vinyl acetate, can be used as a hair care film forming agent and styling agent, especially in aerosol, spray products, liquid products, mousse and gel gels. Among them, the VP/VA copolymer aqueous solution can be carbomer soluble, and is suitable for the formula without ethanol.

Package and Storage

20KG/paper drum, 50KG/plastic drum, sealed packaging, stored at dry and room temperature.

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