Description

n-Vinylpyrrolidone/Styrene Copolymer is a synthetic polymer derived from the copolymerization of vinylpyrrolidone and styrene monomers. This material matters for its unique combination of properties, offering excellent film-forming, adhesion, and binding characteristics alongside good compatibility with a wide range of other polymers and substrates. Industries that need this versatile copolymer include adhesives, coatings, personal care, and pharmaceuticals, where it serves as a key ingredient for hairsprays, mousses, tablet binders, and specialty industrial coatings.

Application

• Hair Styling Products: A primary film-forming agent and fixative in hairsprays, mousses, and gels, providing strong hold with good humidity resistance.
• Personal Care Formulations: Used as a binder and stabilizer in creams, lotions, and makeup, enhancing texture and product stability.
• Pharmaceutical Tableting: Acts as an effective dry and wet binder in tablet manufacturing, improving granule cohesion and tablet hardness.
• Industrial & Specialty Coatings: Imparts adhesion, gloss, and durability in coatings for paper, textiles, and plastics.
• Adhesives and Sealants: Functions as a tackifier and binder, improving the adhesive strength and performance of pressure-sensitive and water-based adhesives.
• Printing Inks: Used as a resin component to enhance ink adhesion, gloss, and rub resistance on various surfaces.

Basic Information

Product Name	n-Vinylpyrrolidone/Styrene Copolymer
CAS No.	25086-29-7
Molecular Formula	(C6H9NO·C8H8)x
Molecular Weight	Varies (Polymer)
Synonyms	Vinylpyrrolidone/Styrene Copolymer; PVP/VA Copolymer; VP/VA Copolymer; Poly(vinylpyrrolidone-co-styrene); Styrene/Vinylpyrrolidone Copolymer; Copovidone (related pharmaceutical grade); PVP/Styrene Copolymer; 1-Ethenyl-2-pyrrolidinone polymer with ethenylbenzene
EINECS	Contact for details

Quality Control

Our n-Vinylpyrrolidone/Styrene Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) are provided with every shipment, detailing key parameters such as assay, residual monomer content, and viscosity. We adhere to relevant cGMP guidelines where applicable to support our customers in pharmaceutical and personal care markets.

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 container tightly sealed when not in use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (VP Content)	Contact for details
Residual Monomers	< 0.1% (each)
Loss on Drying	< 5.0%
Viscosity (K-value)	Specified range available
pH (in solution)	3.0 - 7.0

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