Hangzhou Rainbow Import & Export Co., Ltd. is a reliable supplier of polyvinylpyrrolidone vinyl acetate in China, providing professional sales and export services to global customers. As a sales partner of Huzhou Sunflower Pharmaceutical Co., Ltd., an experienced manufacturer of polyvinylpyrrolidone vinyl acetate, we connect buyers with qualified manufacturers and suppliers and support customized product requirements. Our manufacturing partner's factory provides production support for customer orders. For product specifications, customized solutions, or free sample inquiries, please feel free to contact us.

Polyvinylpyrrolidone Vinyl Acetate, also known as VP/VA copolymer, is a nonionic random copolymer of vinylpyrrolidone and vinyl acetate. It comes as white powder or clear solution, soluble in water and alcohols. It forms flexible films with good adhesion and lower hygroscopicity than pure PVP. Compatible across a wide pH range, it serves as film-forming agent for hair styling, binder and solid dispersion carrier in pharmaceuticals, and is also applied in rewetting adhesives and coatings.

Polyvinylpyrrolidone Vinyl Acetate

High Performance Polyvinylpyrrolidone Vinyl Acetate Details

Physical Form: Supplied as a free-flowing powder suitable for handling, weighing, and incorporation into pharmaceutical manufacturing processes.
Solubility Characteristics: Exhibits solubility in water and several organic solvents, depending on the solvent system and formulation conditions.
Moisture Sensitivity: Storage under controlled humidity helps maintain material quality and supports consistent processing performance.
Formulation Compatibility: Can be evaluated alongside active pharmaceutical ingredients and other excipients to meet specific formulation requirements.
Packaging and Storage: Available in suitable packaging for pharmaceutical raw material handling. Keep the product tightly sealed in a cool, dry environment, following the supplier's storage recommendations.

Why Choose Rainbow as Your Polyvinylpyrrolidone Vinyl Acetate Manufacturer?

Manufacturing and Supply Capability: We focus on pharmaceutical excipients and chemical raw materials, providing supply solutions for customers engaged in pharmaceutical production and formulation development.

Quality Management: We emphasize batch consistency, specification control, and traceable quality documentation to help customers maintain reliable raw material standards across production orders.

Technical Support: Our team works with customers to clarify product specifications, application requirements, and documentation needs before order confirmation.

Flexible Order Coordination: We support communication around purchasing quantities, packaging requirements, and delivery schedules to accommodate different procurement plans.

Polyvinylpyrrolidone Vinyl Acetate Manufacturer

FAQ

Q: What particle size options do you offer for VP/VA copolymer powder, and how does particle size impact dissolution speed?

A: We provide standard fine powder and micronized grades. Finer particles dissolve faster with less agglomeration during mixing. Standard grade suits most liquid formulations; micronized type is preferred for dry powder blending and direct compression.

Q: How does VP/VA monomer ratio affect formulation performance and can we customise the ratio?

A: VP/VA ratio controls film stiffness and moisture sensitivity. Higher VA delivers less flaking and better water resistance. Standard VA64 is in stock; custom ratios can be produced subject to minimum order quantity.

Q: What storage conditions are required to prevent caking and performance drift during shelf life?

A: Keep sealed in cool, dry environment below 25°C and low humidity. Avoid repeated exposure to ambient moisture. Properly stored, powder maintains stable viscosity and film property for 24 months.

Q: What is your lead time for bulk orders, and what packaging formats are available for export shipments?

A: Standard lead time is 2–3 weeks after deposit confirmation. Packing options include 25kg kraft paper bags with PE inner liner. Palletized loading is available to avoid damage during sea or land transport.

Q: Does this copolymer work well with anionic additives in formulations, and what compatibility tests do you recommend?

A: It is nonionic and generally compatible with most anionic surfactants and polymers. Minor phase separation may occur under extreme high loading. We strongly suggest small-scale compatibility trials before mass production.

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