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Hangzhou Weitong Nanomaterials Co., Ltd. is a leading manufacturer of N-vinylpyrrolidone (NVP) and polyvinylpyrrolidone (PVP) series products. With over 20 years of experience, we deliver high-purity excipients for pharmaceuticals, food, cosmetics, and industrial applications.
Founded in 2015, Hangzhou Weitong Nanomaterials Co., Ltd. is committed to excellence in the production of N-vinylpyrrolidone and downstream PVP series products. Our enterprise spirit of "integrity, innovation, dedication, and cooperation" drives us to deliver high-quality nanomaterials to global markets.
Our factory adopts a strict quality management system to ensure that all products meet international standards. With a strong technical team and continuous R&D investment, we have developed advanced processes in polymer synthesis, dehydration control, and acetylene compression.
We offer a comprehensive range of high-purity excipients and raw materials for diverse industrial applications. All products are manufactured under strict quality control and meet international pharmacopeial standards.
CAS: 25086-89-9
A copolymer of vinylpyrrolidone and vinyl acetate, used as a binder in pharmaceutical formulations.
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CAS: 9003-39-8
Highly water-soluble polymer used as a binder, stabilizer, and thickener in pharmaceuticals and cosmetics.
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CAS: 88-12-0
Key monomer for producing PVP and its derivatives. High purity for industrial and pharmaceutical use.
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CAS: 25249-54-1
Superdisintegrant used in tablets to ensure rapid disintegration and dissolution.
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CAS: 9003-39-8
High molecular weight PVP used in adhesives, coatings, and as a thickening agent.
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CAS: 25655-41-8
Broad-spectrum antiseptic used in healthcare and wound care products.
View Details →CAS: 872-50-4
Polar solvent used in electronics, pharmaceuticals, and polymer processing.
View Details →CAS: 110-63-4 | Purity: 99.7%
High-purity BDO used in the production of polyurethanes, plastics, and solvents.
View Details →Povidone Vinyl Acetate Copolymer
Used in sustained-release formulations and as a film-forming agent.
View Details →Ultra-low Moisture Grade
Specialized for lithium-ion battery electrode manufacturing.
View Details →Used as binders, disintegrants, stabilizers, and in sustained-release formulations. PVP and Copovidone are essential in tablet manufacturing.
Applied in adhesives, coatings, inks, and as dispersants in ceramic and pigment industries.
Found in hair sprays, gels, and skincare products for film-forming and stabilizing properties.
Used as a clarifying agent in beverages and as a carrier for flavors and colors.
PVP-based dispersants improve electrode homogeneity and conductivity in lithium-ion batteries.
Used in membrane casting for water treatment and separation technologies.
Eliminate intermediaries and enjoy cost-effective solutions without compromising quality.
10+ patented technologies and a state-certified lab ensure consistent, high-quality PVP products.
Large-scale capacity with fast turnaround times and reliable supply chain.
Our team provides technical guidance, documentation, and responsive customer service.
PVP K30 and K90 differ in molecular weight. K30 has lower viscosity and is used in fast-dissolving tablets, while K90 has higher viscosity and is used in sustained-release formulations and adhesives.
Yes, Copovidone is approved by major pharmacopeias (USP, EP, JP) and widely used as a binder in oral solid dosage forms due to its excellent solubility and stability.
Yes, we offer free samples for evaluation. Please contact us through the official website to request product samples.
We operate under a strict quality management system. Our products comply with ISO, USP, EP, and other international standards. Full documentation is available upon request.
Yes, we support OEM/ODM services, including custom packaging, labeling, and formulation adjustments based on client requirements.
For inquiries, samples, or technical support, please visit our official website to contact the Weitong Chem team.
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