Description

Poly(1-Vinylpyrrolidone-Co-Vinyl Acetate) is a synthetic, water-soluble copolymer widely valued for its excellent film-forming, adhesive, and protective colloid properties. This versatile polymer is engineered to provide a unique balance of binding strength, solubility, and compatibility with a broad range of other materials. It is an essential raw material for formulators and manufacturers in the pharmaceutical, personal care, adhesive, and specialty coating industries seeking reliable performance and consistent quality.

Application

• Pharmaceutical Excipient: Used as a binder, film-coating agent, and stabilizer in tablet formulations and topical preparations.
• Hair Care Products: Serves as a film-forming agent and styling polymer in hair sprays, mousses, and gels, providing hold and humidity resistance.
• Adhesives & Sealants: Acts as a key component in water-based adhesives, offering good tack and adhesion to various substrates.
• Specialty Coatings: Employed in coatings for textiles, paper, and other surfaces to improve gloss, smoothness, and barrier properties.
• Printing Inks: Functions as a binder and viscosity modifier in ink formulations, enhancing print quality and stability.
• Detergent & Cleaning Formulations: Used as a anti-redeposition agent and stabilizer to prevent soil from re-adhering to fabrics.

Basic Information

Product Name	Poly(1-Vinylpyrrolidone-Co-Vinyl Acetate)
CAS No.	25086-89-9
Molecular Formula	(C6H9NO)m(C4H6O2)n
Molecular Weight	Varies by grade (typically 45,000 - 70,000 g/mol)
Synonyms	PVP/VA Copolymer; Vinylpyrrolidone/Vinyl Acetate Copolymer; Copovidone; 1-Ethenyl-2-pyrrolidinone polymer with ethenyl acetate; PVP VA; Kollidon VA 64; Plasdone S-630
EINECS	246-634-6

Quality Control

Our Poly(1-Vinylpyrrolidone-Co-Vinyl Acetate) is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for critical parameters such as K-value, residual monomer content, and moisture. Certificates of Analysis (COA) are provided with every shipment, and we can support compliance with relevant pharmacopeial standards (e.g., USP-NF, Ph. Eur.) for applicable grades.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
K-value (1% in ethanol)	25 - 35
Assay (Nitrogen content)	7.0 - 8.5 %
Residual Vinylpyrrolidone	≤ 0.2 %
Residual Vinyl Acetate	≤ 0.2 %
Loss on Drying	≤ 5.0 %
Residue on Ignition	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.