PVP-k Homopolymer Series
Chemical Structure : Homopolymer of Vinylpyrrolidone
CTFA Nomenclature : Polyvinylpyrrolidone (Abbreviated to PVP)
Physical Properties : Exists as white or milky white powder , and colorless orslight yellow transparent liquid. It is tasteless and hasslightly special smell. It can dissolve in water , alcohol,isopropanol or chloroform, notin acetone or diethyl ether.Polymers having molecular weight under 30000 canexcreted by the human kidney.
Specification:
Technical grade
Catalog of product |
K value |
vinylpyrrolidone % |
moisture % |
solid % |
PH
(10% in water) |
Sulfate Ash % |
K12liquid |
10–13 |
<0.2 |
– |
40±1 |
7–9 |
<0.1 |
K15liquid |
14–17 |
<0.2 |
– |
40±1 |
7–9 |
<0.1 |
K30powder |
27–33 |
<0.2 |
<5.0 |
>95 |
5–7 |
<0.1 |
K30liquid |
27–33 |
<0.2 |
– |
40±1 |
7–9 |
<0.1 |
K60liquid |
55–65 |
<0.2 |
– |
40±1 |
7–9 |
<0.1 |
K90liquid |
88–96 |
<0.2 |
– |
20±1 |
7–9 |
<0.1 |
K120liquid |
110–125 |
<0.2 |
– |
15±1 |
7–9 |
<0.1 |
Pharmaceutical grade(according with the China Pharmacopia 2000 editor)
Catalog of product |
K value |
NVP % |
Moisture % |
Solid % |
Sulfate
ash
% |
PH
(10% in water) |
Nitrogen % |
Aldehyde in terms
of CH3CHO %
|
Heavy metal |
Peroxide as H2O2PPM |
K30powder |
27-33 |
<0.1 |
<5.0 |
– |
<0.1 |
5–7 |
11.5-12.8 |
<0.2 |
<0.001 |
<400 |
K90liquid |
88-96 |
<0.1 |
– |
20±1 |
<0.1 |
7–9 |
11.5-12.8 |
<0.1 |
<0.001 |
<400 |
Application:
Cosmetics : PVPK series can be used as film-forming agent, viscosity-enhancement agent, lubricator and adhesive. They are the key component of hair spray, mousse, gels and lotions & solution. They are also convenience assistant in skin-care product, hair-dying reagent, shampoo, eye makeup, lipstick, deodorant, sunscreen and dentifrice.
Pharmaceutical : Povidone K30 is a new and excellent pharmaceutical excipient. It is mainly used as binder for tablet and pellet, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment, stabilizer for enzyme and heat sensitive drug, coprecipitant for poorly soluble drug, lubricator and antitoxical assistant for eye drug. PVP has been used as excipients in more than one hundred drugs. Pharmaceutical grade PVPK30 has been officially permitted by many countries to be sold in china market.
| Other utility : |
→ Suspensant, disperser and emulsifier |
→Paint and coating |
| |
→Plastics and resin |
→Glass fiber |
| |
→Ink |
→Adhesive |
| |
→Detergent, levelling agent and color stablizer |
→Film |
| |
→Tabletting assistant |
→TV tube |
| |
→Lotion rubberized fabric production |
→Paper assistant |
| |
→Nanometer particular disperser and stablizer used in metal-cutting
and polishing compound
|
|
