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PVP = Pyrrolidinone = ethenyl = homopolymer
CAS no.: 9003-39-8
EC / List no.: 618-363-4
PVP K-90 is a hygroscopic, amorphous polymer supplied as a white, free-flowing powder or a clear aqueous solution.
Available in several molecular weight grades, they are characterized by K-value, and used in a great variety of applications.
Pvp can be plasticized with water and most common organic plasticizers. It is considered to be physiologically inert:
Applications take advantage of one or more properties inherent in the polymer, typically due to the lactam ring.
High polarity and the resultant propensity to form complexes with hydrogen donors, such as phenols and carboxylic acids, as well as anionic dyes and inorganic salts.
Dispersancy, where components in a mixture are uniformly distributed through the use of polyvinylpyrrolidone.
Hydrophilicity, where the substantial water solubility of polyvinylpyrrolidone is its dominant feature and frequently a factor along with other properties valuable to numerous applications.
Adhesion, taking advantage of the higher molecular weight polyvinylpyrrolidones formulating in aqueous media, then evaporating sufficient water to generate a solid product for the desired application.
Cohesivity, where cohesive strength is achieved through a variety of dry blending and granulation techniques.
Pvp is cross-linkable to a water insoluble, swellable material either in the course of vinylpyrrolidone polymerization, by addition of an appropriate multifunctional comonomer or by post-reaction, typically through hydrogen abstraction chemistry.
Home Care Features and Benefits
- acts as rheology modifier
- is a highly adhesive tablet binder
- stabilizes emulsion and structures liquid products
- provides anti-soil redeposition, enzyme stabilization and dye transfer inhibition
- functions as binder and protective coating for enzymes
- provides surface shine enhancement
- forms hard, transparent, glossy films
Home Care Applications
- dishwashing liquids
- dishwashing and laundry tablets
- laundry detergents
- hard surface cleaners
Povidone Polyylpyrrolidone PVP17 K30 K90, also commonly called Polyvid or Povidone, is an water polymer in the monomer N-vinylpyrrolidone.
Povidone (polyvinylpyrrolidone, PVP K30, PVP K17, PVP K90) is used in the pharmaceutical industry as a synthetic polymer vehicle for dispersing and suspending drugs.
Features and advantages of Povidone Polyvinylpyrrolidone PVP K17 K30 K90:
-Well crafted
- Fully packed
- Free from contaminants
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 is available in white powder or aqueous solution.
Solubility: Povidone Polyvinylpyrrolidone PVP K17 K30 is easily soluble in water, alcohol, amine and halohydrocarbon but insoluble in acetone and aether.
Povidone Polyvinylpyrrolidone PVP K17 K30 has good solubility, biocompatibility and physiologically inert, film-forming, colloid retain ability and compound ability of many organic or inorganic compounds.
Povidone Polyvinylpyrrolidone PVP K17 K30 is also acid, salt and heat resistant, so it is widely used.
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 is available as white or milky white powder or colorless or slightly yellow transparent liquid.
Pvp can be dissolved in water and various organic solvents.
Pvp has hygroscopic, film-forming, complexing ability and physiological compatibility.
1.In Pharmaceutical Industry:
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 (Pharmaceutical grade) is a kind of new excellent drug excipient.
It is mainly used as binder for tablet and granule, co-solvent for injection, flow aid for capsule, dispersant for liquid medicine and pigment, stabilizer of enzyme and heat-sensitive drug, co-precipitant for poorly soluble drugs, lubricant and antitoxic excipient for eye medicines.
PVP has been used as an excipient in over a hundred drugs.
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 has excellent adhesive, film-forming, dispersing and thickening properties and is widely used in the pharmaceutical industry.
Povidone (polyvinylpyrrolidone, PVP) is used in the pharmaceutical industry as a synthetic polymer vehicle for dispersing and suspending drugs.
Low molecular weight PVP-K such as PVP K12, K15, K17 is commonly used as a solubilizing agent, crystallization inhibitor and suspension stabilizer in injection and ophthalmic formulations.
-Medium Molecular such as PVP-K, PVP K25, K30, as a binder in tablets, capsules and granules, as a stabilizer in oral suspensions, film-forming agents, solubilizing agents, dispersing agent for pigments, enzyme stabilizer and increase bioavailability.
-High molecular PVP-K, like PVP K90, works as a highly effective binder.
It is often used as a stabilizer, thickener, hydraulic agent, etc. in oral and topical suspensions.
They are used as.
2.In the Cosmetic Industry
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 is widely applied in a wide range of hair care, skin care and oral care products.
Povidone Poly vinylpyrrolidone PVP K17 K30 K90 is particularly suitable for formulations where viscosity modification and film forming properties are required.
Povidone Polyvinylpyrrolidone PVP K17 K30 K90 is especially suitable for hair styling products.
Medium molecular weights such as PVP K30 are preferred at critical points in viscosity such as spray.
-High molecular weight products such as PVP K90 are a better choice when high viscosity is required in applications.
Povidone Poly vinylpyrrolidone PVP K17 K30 K90 is widely used in cosmetic products such as hair gel, hair mousses, liquid hair preparation preparations, pump sprays.
3.Other Industrial Applications of Povidone Poly vinylpyrrolidone PVP K17 K30 K90 include:
- Suspension, dispersant and emulsifier
-Glass fiber
-Detergent
-Plastic and resin
-Ink
- Paint and coating
-Textile dyeing and printing
-Film
Sticky
-TV tube
It is in solid powder or crystal form in physical appearance.
It is a hygroscopic chemical.
Polyvinylpyrrolidone is a stable compound. However, if it is heated together with Sodium Metasilicate and Trisodium Phosphate, it will precipitate.
It is a chemical that exhibits a high level of compatibility with many chemicals.
Its Melting Point is around 165 °C.
Boiling Point is around 90-93 °C.
PVP (Polyvinylprolidon) density is 1.69 gr/cm³.
It has very good solubility in water and methyl alcohol.
Among the polyvinylpyrrolidone PVP usage areas, the most common sector is the pharmaceutical and cosmetics field.
PVP K-30 form is used in the cosmetic industry.
The purpose of using PVP K-30 in the cosmetics industry is to benefit from its ability to form a dispersing agent, a hard and at the same time bright transparent film.
In the adhesive industry, in the manufacture of pressure sensitive adhesives, as an emery stone binder, as a viscosity modifier in the manufacture of ceramic-type products prepared at high temperatures.
PVP used in the manufacture of adhesives used to bond rubber to metal.
PVP K-90 used as a protective colloid and leveling agent in digital printing coating materials, ballpoint inks and emulsion polymers.
In the electronics industry, it is used as a binder in cathode ray tubes, printed circuits and storage batteries.
PVP used to disperse titanium dioxide used in the textile industry.
PVP K-90 used in the manufacture of the coating component used on the surface of aluminum, copper, zinc and nickel metals in the coating industry.
PVP K-90 an excipient used to disperse and suspend drugs in pharmaceutical products.
PVP K30 is used in the production of pills used to relieve the common cold. In addition, in this application, Polyvinyl Alcohol is used as a binder and with Xanthan Gum as a thickening agent.
Polyvinylprolidon PVP K is used as the adhesive chemical for transdermal systems.
PVP K-90 used as a binder for tablets and capsules.
PVP K-90 is a polymer that is amorphous and hygroscopic.
PVP K-90 a water-soluble polymer of a non-ionic type that has a stable pH level.
The film-forming properties of this ingredient make it effective in many cosmetic products.
PVP K-90 forms a hard glossy film on your skin that can be removed upon becoming sufficiently dry.
Apart from that, PVP K-90 also possesses cohesive and adhesive properties.
As PVP K-90 available in a fine powdered form of white color, you can add it in different formulas conveniently.
PVP K-90 hold the hair in place irrespective of the climate makes it a great ingredient in hair styling products.
PVP K-90 also gives a glossy texture and appearance to your hair.
You may also use it as a stabilizer as it also blends it with natural ingredients such as resins, inorganic salts, acrylate thickeners, etc. PVP K-90 proves to be effective as a dispersant in hair coloring solutions.
Cosmetics and personal care products such as lotions, toothpaste, etc. can be made to be of sparkling white color by using this as one of the primary ingredients.
PVP K-90 is also available in the form of crystals or flakes but powdered PVP K-90 is the best and convenient to use as it can be easily mixed and added to formulas in different stages.
PVP K-90 is also used in pharmaceutical products especially as an adhesive to bind the ingredients of tablets.
PVP K-90 possesses cleansing properties as well due to which it is also used in surface cleaners, home cleaners, dishwashing solutions, laundry detergents, and much more.
Solubility:
PVP K-90 is soluble in alcoholic solvents and H2O.
However, it is not soluble in hydrocarbons and oils.
Therefore, avoid adding it when the formula is in the oil-phase.
PVP K-90 is also used as a solubilizing agent because of its ability to blend and dissolve a variety of biochemicals and natural ingredients in emulsions.
Versatile: As it is a stable ingredient you can add it to formulas without worrying about their pH balance.
Also, it is non-ionic and blends with a variety of ingredients.
Therefore, you can use it for making a wide range of cosmetic and skincare products.
However, don't add a huge amount of this powder as it might make your emulsions and final products too thick.
Perfect for Hair Gels: PVP K-90 is mostly used in hair styling applications like hair gels, pomades, etc. because of its ability to retain the form and hardness of hair irrespective of the weather conditions.
PVP K-90 capacity to resist heat and humidity makes it one of the best ingredients for hair styling products.
Moisturizing: Due to its hygroscopic properties, PVP K-90 is widely used in skincare products like lotions and moisturizers.
PVP K-90 retains the moisture content of your skin for a long time and rejuvenates your skin deeply to make it soft, plump, and smooth.
Other Uses: PVP K-90 is used as a dispersant in pigments and it is also effective as a stabilizer for oral care products (suspensions).
Moreover, it also proves to be effective in improving the bioavailability of solutions.
As a stabilizer, it proves to be useful in enhancing the overall shelf-life of cosmetic products.
As it has a higher molecular weight than other forms of PVP, it is used as a viscosity enhancer for cosmetic products.
Moreover, PVP K-90 also added while manufacturing paints, adhesives, inks, and other industrial solvents and lubricants.
Product Applications: Hair gels, pomades, hair styling products, moisturizers, lotions, creams, moisturizers, and other skincare and hair care products contain it as one of the key ingredients.
PVP was used as a plasma volume expander for trauma victims after the 1950s.
PVP K-90 not preferred as volume expander due to its ability to provoke histamine release and also interfere with blood grouping.
PVP K-90 used as a binder in many pharmaceutical tablets; it simply passes through the body when taken orally.
PVP added to iodine forms a complex called povidone-iodine that possesses disinfectant properties.
This complex is used in various products like solutions, ointment, pessaries, liquid soaps and surgical scrubs.
PVP K-90 known under the trade names Pyodine and Betadine, among a plethora of others.
PVP K-90 used in pleurodesis (fusion of the pleura because of incessant pleural effusions). F
or this purpose, povidone iodine is equally effective and safe as talc, and may be preferred because of easy availability and low cost.
PVP is used in some contact lenses and their packaging solutions.
PVP K-90 reduces friction, thus acting as a lubricant, or wetting agent, built into the lens.
Examples of this use include Bausch & Lomb's Ultra contact lenses with MoistureSeal Technologyand Air Optix contact lens packaging solution
PVP is used as a lubricant in some eye drops.
PVP is also used in many technical applications:
as an adhesive in glue stick and hot-melt adhesives
as a special additive for batteries, ceramics, fiberglass, inks, and inkjet paper, and in the chemical-mechanical planarization process
as an emulsifier and disintegrant for solution polymerization
to increase resolution in photoresists for cathode ray tubes (CRT)
in aqueous metal quenching
for production of membranes, such as dialysis and water purification filters
as a binder and complexation agent in agricultural applications such as crop protection, seed treatment and coating
as a thickening agent in tooth whitening gels
as an aid for increasing the solubility of drugs in liquid and semi-liquid dosage forms (syrups, soft gelatine capsules) and as an inhibitor of recrystallisation
as an additive to Doro's RNA extraction buffer[citation needed]
as a liquid-phase dispersion enhancing agent in DOSY NMR
as a surfactant, reducing agent, shape controlling agent and dispersant in nanoparticle synthesis and their self-assembly
as a stabilizing agent in all inorganic solar cells
Polyvinylpyrrolidone is abbreviated as PVP, and is the polymer of vinylpyrrolidone.
According to the different degree of polymerization, it is further classified into soluble PVP and insoluble PVPP (polyvinyl polypyrrolidone).
Molecular weight of the soluble PVP is 8,000 to 10,000.The soluble PVP can be used as a precipitating agent which can be settle down through its action with polyphenols.
Using this method, it is easily to have residual PVP in the alcohol.
Due to the savings effect of PVP inside the human body, the World Health Organization doesn’t recommend to apply this substance.
In recent years, the use of soluble PVP has been rare.
Insoluble PVPP system had began to be used in the beer industry since the early 1960s.
PVP K-90 has a relative molecule weight greater than the relative mass greater than 700,000.
PVP K-90 a insoluble polymer derived from the further cross-linking and polymerization of PVP and can be used as an adsorbent of polyphenols with a good efficacy.
Polyvinylpyrrolidone PVP is one of the three major pharmaceutical new excipients and can be used as the co-solvent of tablets, granules, and injection, as the glidant of capsules, as the dispersant agent of liquid preparations and the colorant, as the stabilizer of enzyme and heat sensitive drug, as the co-precipitating agent of poorly soluble drugs, and as the detoxicant of ophthalmic drugs and lubricants.
PVP K-90 industrially used as expanded polystyrene additive, as the gelling agents for suspension polymerization, stabilizer, and fiber treating agents, paper processing aids, adhesives, and thickening agents.
Polyvinylpyrrolidone PVP and its copolymers CAP is an important raw material of cosmetics, mainly used for hair retaining agent.
The film it formed in the hair is elastic and shiny, and has excellent carding property as well as being free of dust.
Adopting different category of resin can meet various kinds of relative humidity climatic conditions.
Therefore, it is an indispensable raw material in styling hair cream, hair gel, and mousse.
PVP K-90 can also be used for the cosmetics of skin moisturizing agents and the dispersants for grease based hair dying, also as foam stabilizers, and can improve the consistency of the shampoo.
Insoluble PVP is the stabilizer of beer and juice which can improve its transparency, color, and flavor.
Polyvinyl pyrrolidone (PVP) is a water soluble polyamide.
Commercially available PVP is divided into four viscosity grades according to its press K value (Fikentscher K value):
K-15, K-30, K-60, K-90, with the average molecular weight being 10,000, 40000,160000, and 360000, respectively.
K value or molecular weight is an important factor which decides the various properties of PVP.
Polyvinyl pyrrolidone (PVP) is dissolved in water, chlorinated solvents, alcohol, amine, nitro-paraffin and low molecular weight fatty acids, and is mutually soluble with most inorganic salts and a variety of resin; insoluble in acetone and ether.
PVP used for the matrix of dropping pill matrix is odorless, tasteless, white to pale yellow waxy solid with the relative density being 1.062, and its 5% aqueous solution pH being 3 to 7. PVP is hygroscopic and of good thermal stability, and can be dissolved in various kinds of organic solvents, and has high melting point.
Adding certain natural or synthetic polymers or organic compounds can effectively adjust the PVP’s hygroscopicity and softness.
PVP is not prone to have chemical reaction. Under normal storage conditions, dry PVP is quite stable.
PVP has excellent physical inertia and biocompatibility and has not stimulation to skin, eyes no stimulation with no allergic reactions and being non-toxic.
Because of the hydrogen bonding or complexation effect, PVP’s viscosity is increased and this further inhibits the formation and growth of crystallized nuclei of drugs, making the drug being in the amorphous state.
The dropping pill whose matrix is PVP can enhance the dissolution and bioavailability of poorly soluble drugs.
In general, the greater the PVP amount, the higher dissolution and solubility of drug in the medium.
Susana et al have studied the dissolution of the PVP solid dispersant of the slightly soluble drug albendazole.
The increased amount of PVP (k30) can increase the dissolution rate and efficiency of drug inside the solid dispersant.
Teresa et al have studied the dissolution of the poorly soluble drugs, flunarizine in PVP solid dispersant and obtained similar conclusion.
PVP also found that the higher the content, the more significant increase in dissolution.
IR has showed that flunarizine and PVP has no chemical reaction except in some cases that a best dissolution efficacy is obtained only in certain ratio between some drugs with the PVP.
Tantishaiyakul et al has found that: when the ratio of piroxicam: PVP is 1:5 and 1:6, the dissolution of the solid dispersant is the largest with a 40 times as high as that of single drug within 5min.
PVP can also be dissolved in another molten dropping pill matrix, such as polyethylene glycol (PEG), polyoxyethylene monostearate (S-40), poloxamer and stearyl acid, glyceryl monostearate, etc for making complex matrix.
The above information is edited by the Chemicalbook of Dai Xiongfeng.
Cosmetics and industrial polyvinylpyrrolidone PVP (Luvikol K, BASF)
PVP is not easy to have chemical reaction. When stored at normal conditions, dry PVP is quite stable.
Solution undergone mildew treatment is also stable.
When heated in air to 150 °C or mixed with ammonium persulfate to heat at 90 °C for 30min, PVP will be exchanged to become a water-insoluble compound.
In the presence of azo compound or a dichromate oxidizing agent, light will cause PVP solution to become gel.
The co-heating of PVP solution with strong base (such as sodium silicate or trisodium phosphate) will generate precipitation.
Many different compounds can generate complexes with PVP.
For example, the complexes of PVP and iodine is very stable and have a good bactericidal effect and can reduce its toxicity; Adding the copolymers of the polyacrylic acid, tannic acid or methyl vinyl ether and maleic acid to the aqueous solution of PVP will generate insoluble complexes which are insoluble in water, alcohols and ketones.
But when being treated with base for neutralize the poly-acid can reverse the reaction; complexation between PVP and toxins, drugs and toxic chemicals can reduce their toxicity; some kinds of dyes can also form a strong complex with PVP, which is the basis for using PVP as a dye bleaching agent.
In the early 1950s, older, with shellac and oil-based hairspray had been rapidly replaced by PVP sprays which are still widely used until now.
PVP K-90 can form wet, transparent film on the hair which is shiny and has good lubrication effect.
PVP has good compatibility with a variety of good propellant and also has corrosion resistance.
It is widely used in hair styling, as the film former in combing products, as the creatinine and stabilizer of skin care lotions and creams, as the base stock material for eye and facial cosmetics and lipstick base, and also as hair dye dispersants and shampoo foam stabilizer.
PVP has detoxification effect and can reduce the irritation effects of other preparation on the skin and eyes.
PVP K-90 also used as toothpaste detergents, gelling agents and antidotes.
The main drawback of PVP is its sensitivity to moisture.
However, this issue can be tackled by using its vinyl acetate copolymer in order to mitigate the effects of moisture and humidity.
In addition, PVP also has wide application in the pharmaceutical, beverage and textile industries.
PVP K-90 the cross-linked homopolymer of pure vinylpyrrolidone.
PVP K-90 hygroscopic and free-flowing white or off-white powder.
PVP K-90 has a slight foul smell.
PVP K-90 insoluble in common solvents such as water, ethanol and ether.
So its molecule weight range can’t be measured.
However, PVP has ability to form complex with various kinds of substances (such as “Hu” class substance which can lead to the discoloration of a variety of wines and beverages discoloration).
Also it is easily to be removed after filtration because of its insolubility.
Clarifying agent; pigment stabilizer; colloidal stabilizer;
PVP K-90 mainly used for beer clarifying and quality stabilizing (reference amount 8~20g/100L, maintained for 24h and remove it by filtration), and can also be applied in combination with enzymes (protease) and protein adsorbents.
PVP K-90 also used to clarify the wine and as a stabilizer to prevent discoloration (reference amount 24~72g/100L).
Clarifying agents; stabilizers; thickeners agent; tablet fillers; dispersants; PVP of molecular weight 360,000 are often used as the clarifying agent of beer, vinegar, and grape wine.
Used as the fixing liquid for gas chromatography.
PVP K-90 used as a colloidal stabilizer and clarifying agent for beer clarification.
Apply proper amount according the demands of production.
PVP K-90 can be used for pharmacy, aquaculture, and livestock disinfectant for the sterilization of the skin and mucous.
PolyFilterTM molecule has an amide bond for absorbing the hydroxyl groups located in polyphenol molecule to form hydrogen bonds, and therefore, can be used as the stabilizer of beer, fruit wine/grape wine, and drinking wine to extend their shelf life and improve the transparency, color and taste.
The products have two specifications: disposable type and regeneration type. Disposable products are suitable for application by SMEs; renewable products demand the purchase of special filtration equipment; but since it is recyclable, it is suitable for large breweries for recycle application.
In daily cosmetics, PVP and its copolymer has good dispersion property and filming property, and thus being able to be used as a setting lotion, hair spray and styling mousse, as opacifiers for hair care agents, as the stabilizer of shampoo foam, as wave styling agent and as the dispersants and affinity agents in hair dye.
Adding PVP to cream, sunscreen, and hair removal agent can enhance wetting and lubricating effect.
Taking advantage of the excellent properties of PVP such as surface activity, film-forming and non-irritating to the skin, no allergic reactions, etc., has broad prospects in its application in hair care and skin care products.
IUPAC name:
1-Ethenyl-2-pyrrolidinone homopolymer
1-Ethenyl-2-pyrrolidinone polymers
1-ethenylpyrrolidin-2-one
2-Pyrrolidinone, 1-ethenyl-, homopolymer
Agent I133
n-Vinylpyrrolidinone polymer
Poly(1-vinyl-2-pyrrolidinone)
Poly(N-vinyl-2-pyrrolidone)
Poly(vinylpolypyrrolidone)
Poly-1-vinyl-2-pyrrolidone
POLYVINYL PYRROLIDONE
Polyvinyl pyrrolidone
Polyvinylpyrrolidone
polyvinylpyrrolidone
Povidone
PVP
PVP K15
synonyms:
143 RP / 1-ethenyl-2-pyrrolidinone polymers / 1-ethenyl-2-pyrrolidinone,polymers / 1-ethenyl-2-
pyrrolidone,polymer / 1-vinyl-2-pyrrolidinone,polymers / 1-vinyl-2-pyrrolidone polymers / 2-
pyrrolidinone, 1-ethenyl, homopolymer / 2-pyrrolidinone, 1-vinyl-, polymers / agent AT 717 /
agrimer / albigen A / aldacol Q / AT 717 / bolinan / ganex P 804 / hemodesis / hemodez /
Hueper's polymer No. 1 / Hueper's polymer No. 2 / Hueper's polymer No. 3 / Hueper's polymer
No. 4 / Hueper's polymer No. 5 / Hueper's polymer No. 6 / Hueper's polymer No. 7 / K 115 / K
115 (polyamide) / K 115,polyamide / K 15 / K 25 / K 25 (polymer) / K 25,polymer / K 30 / K 30
(polymer) / K 30,polymer / K 60 / K 60 (polymer) / K 60,polymer / K 90 / kollidon / kollidon 17 /
kollidon 25 / kollidon 30 / luviskol / luviskol K 17 / luviskol K 25 / luviskol K 30 / MPK 90 /
neocompensan / N-vinyl,polymer / N-vinylbutyrolactam polymer / N-vinylbutyrolactam,polymer /
N-vinylpyrrolidinone polymer / N-vinylpyrrolidinone,polymer / N-vinylpyrrolidone polymer / Nvinylpyrrolidone,polymer / P.V.P / peragal ST / peregal ST / periston / periston-N / peviston /
plasdon K-26/28 / plasdon XL / plasdone / plasdone C / plasdone K 29-32 / plasmosan / poly(1-
(2-oxo-1-pyrrolidinyl)ethylene) / poly(1-vinyl-2-pyrrolidinone),homopolymer / poly(1-vinyl-2-
pyrrolidinone)Hueper's polymer No.1 / poly(1-vinyl-2-pyrrolidinone)Hueper's polymer No.2 /
poly(1-vinyl-2-pyrrolidinone)Hueper's polymer No.3 / poly(1-vinyl-2-pyrrolidinone)Hueper's
polymer No.4 / poly(1-vinyl-2-pyrrolidinone)Hueper's polymer No.5 / poly(1-vinyl-2-
pyrrolidinone)Hueper's polymer No.6 / poly(1-vinyl-2-pyrrolidinone)Hueper's polymer No.7 /
poly(1-vinylpyrrolidinone) / poly(N-vinylbutyrolactam) / poly(N-vinylpyrrolidinone) /
poly(vinylpyrrolidinone) / poly(vinylpyrrolidone) / polyclar AT / polyclar H / polyclar L /
POLYVIDONE / polyvinylpyrrolidone K 12 / polyvinylpyrrolidone K 15 / polyvinylpyrrolidone K
25 / polyvinylpyrrolidone K 30 / polyvinylpyrrolidone K 60 / polyvinylpyrrolidone K 90 /
polyvinylpyrrolidone,special grade / povidone / povidone (usp xix) / povidone,usp xix / protagent
/ PVP / PVP 1 / PVP 2 / PVP 3 / PVP 4 / PVP 5 / PVP 6 / PVP 7 / PVP-10 / PVP-360 / PVP-40 /
PVP-40T / PVP-k 15 / PVP-k 30 / PVP-k 60 / PVP-k 90 / PVPP / RP 143 / subtosan / vinisil /
vinylpyrrolidinone polymer / vinylpyrrolidinone,polymer / vinylpyrrolidone polymer /
vinylpyrrolidone,polymer
