PVP exists as powder or aqueous solution. It can dissolve in water and variety of organic solvent .It is generally used in cosmetics , surfactants , pharmaceutical industry and other related industrial fields.
Specification:
Technical grade:
Catalog of product
K value
Vinylpy
rrolidone%
Moisture%
Ash%
Solid%
pH
(5% in water)
K30(powder)
27-33
<0.2
<5.0
<0.02
>95
3-7
K30(aqueous solution)
27-33
<0.2
-
<0.02
30¡À1
5-8
K90(aqueous solution)
90-103
<0.2
-
<0.02
20¡À1
7-10.5
Application:
PVP K series can be used as film forming agent, viscosity-enhancement agent, lubricator and adhesive. They are the key component of hair sprays, mousse, gels and lotions & solution. They are also convenience assistant in skin care product, hair-drying reagent, shampoo, eye makeup, lipstick, deodorant, sunscreen and dentifrice.
Pharmaceutical:
Povidone K 30 and K 25 is a new and excellent pharmaceutical excipient. It is mainly used as binder for tablet, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment, stablizer for enzyme and heat sensitive drug, coprecipitant for poorly soluble drugs, lubricator and antitoxical assistant of eye drug. PVP has been used as excipients in more than one hundred drugs.
PVP-A Copolymer Series
PVP/VA 64 Powder
45 kg / plastic drum
CTFA Nomenclature :
PVP/VAc copolymer
Chemical Structure:
Copolymer of vinylpyrrolidone with vinylacetate
Physical Properties:
Copolymer of different proportion of vinylpyrrlidone to vinyl acetate can be offered in powder or alcohol solution product. The aqueous product could be cloudy. The clarity of the solution depends on the proportion of vinylpyrrolidone to vinyl acetate. The solution is slight acidic but not electrolytic.
Specification:
Product
VP/VAc (w/w)
K value
Vinylpyr
rolidone %
Moisture %
Solid %
VA73E
70/30
30-38
<0.2
<0.5
>95
KVA64E
60/40
30-36
<0.2
<0.5
30¡À1
VA64(Powder)
60/40
26-34
<0.2
<5.0
20¡À1
VA55E
50/50
28-36
<0.2
<0.5
VA37E
30/70
28-36
<0.2
<0.5
Application:
Cosmetics: PVP/VAc series products play a good role as film-former and hair-fixing agent. Its hydrophobe decreases with the increase in the proportion of vinyl acetate in the molecular. This property is extremely useful for PVP/VAc as hair sprays and hairset lotion. If being used with PVPK30, the effect would be enhanced.
