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Chemical Structure:Homopolymer
of Vinylpyrrolidone
CTFA Nomenclature:Polyvinylpyrrolidone(Abbreviated
to PVP)
Physical properties:PVP exists
as powder or aqueous solution. It can dissolve in water and variety
of organic solvent. It is generally used in cosmetics, surfacant,
pharmacentical industry and other related industrial fields.
Specifications:
Technical grade PVP-K
Series
| catalog of product |
K value |
vinlpyrrolidone % |
Moisture% |
ash% |
solid% |
PH(10% in water) |
K15(power)
K15(aqueous soluting) |
12-18
12-18
|
<0.2
<0.2 |
<5.0
- |
<0.02
<0.02 |
>95
40 1 |
3-7
7-10 |
K30(power)
K30(aqueous soluting) |
27-33
27-33 |
<0.2
<0.2 |
<5.0
- |
<0.02
<0.02 |
>95
301 |
3-7
5-8 |
K90(power)
K90(aqueous soluting) |
90-103
88-96 |
<0.2
<0.2 |
<5.0
- |
<0.02
<0.02 |
>95
201 |
5-9
7-10.5 |
In pharmaceutical
grade PVP-K series
| catalog of product |
K value |
vinylpyrrolidone %(indometric) |
Moisture
(K.Pischer)% |
salfate ash % |
PH of (10% in water) |
aitrogen % |
aldehyde intaroms of acetaldehyde
% |
heavy metal terms of % |
| K30 |
27-32 |
<0.1 |
 5.0 |
0.1 |
3-7 |
11.5-12.8 |
<0.05 |
0.001 |
| K90 |
81-97 |
<0.1 |
5.0 |
0.1 |
3-7 |
11.5-12.8 |
<0.05 |
0.001 |
Application:
- Cosmetics:PVP-K series can
be used as film-forming agents, viscosity-enhancement agents,
lubricate and adhesive. They are the key component of hair sprays,
monsse, gels and lotions and solution. They are also convenience
assistant in skin-care product, hair-dying reagent shampoo, eye
makeup, lipsticks, deodorants and dentifrices.
- Pharmaceutical:Povidone
K 30 is a new and excellent pharmaceutical excipient. It is mainly
used as binder for tablet, dissolving assistant for injection,
flow assistant for capsular, dispersantfor liquid medicine and
pigment, stabilizer for enzymes and heat sensitive drug, coprecipitant
for poorly soluble drugs, lubricate and antitoxical assistant
for eye drug. PVP has been used as excipients in more than hundred
drugs.
Other Utility: Suspensing, dispersing
and emulsing agent
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VP-K
Homopolymer Series 