HANGZHOU WEITONG NANOMATERIALS CO., Ltd.
Hangzhou Weitong Nano Materials Co., Ltd.Founded in 2015, Weitong is a high-tech enterprise specializing in the full PVP industry chain-from R&D to production and sales-with N-Vinylpyrrolidone (NVP) as our core product.
We are committed to advancing functional chemical materials, delivering safe, eco-friendly, and high-performance nano-material solutions for industries including pharmaceuticals, cosmetics, industrial applications, and food. Through innovation, we empower industrial transformation and upgrading.
Established in 2015
Since 2015, Hangzhou Weitong Nano Materials Co., Ltd. has become a trusted leader in nanomaterials with nine years of industry experience.
R&D Team And Production Facilities
With a strong R&D team and modernized production equipment, it adopts advanced production technology and quality management system.
High Quality Standards
Our factory adopts a strict quality management system to ensure that the products meet high quality standards.
Innovation-Driven Excellence
10+ patented technologies and a state-certified laboratory ensure premium PVP quality.
Direct Factory Pricing
Eliminate intermediaries-delivering unmatched cost-effectiveness.
Global Expertise
Serving 30+ countries with rapid response and reliable export solutions.
Scalable Customization
From gram-scale trials to 5,000-ton production-tailored for your needs.
Professional Technologies, Processes & Equipment
China's polyethylene industry has grown rapidly in recent years. To meet market demands, Hangzhou Weitong has focused on innovating PVP production technology. By improving yarn-winding mechanisms, optimizing crushing devices, and developing advanced control systems for dehydration and acetylene compression, the company has strengthened its position in polymer manufacturing.
Committed to green chemistry and enhancing quality, Weitong expands its product applications while continuously developing new technologies and processes. Through high-quality products and services, the company maintains its industry leadership and drives sustainable growth.
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MEDICINE |
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FOOD |
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COSMETIC |
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DRINKS |
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PAINT |
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ADHESIVE |
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TEXTILE |
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STERILIZE |
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GLUE |
Our range of NVP-based products covers various series tailored to different industries. This includes the homopolymer series (K15-K120), copolymer series (VA64 powder, V64E, VA64W, 73W, 37E, 37W), and cross-linked series (PVPP XL-10, PVPP-10, povidone-iodine pvpI). These products find applications across diverse sectors, serving as stabilizers, dispersants, coatings, inks, and adhesives.
Derived from NVP, our PVP series stands out for its strong biocompatibility and solubility, making it indispensable in pharmaceuticals, cosmetics, and food products.
In pharmaceuticals, cosmetics, agriculture, food, and printing industries, our NVP products are extensively utilized. For instance, the PVP K series acts as a versatile thickener and stabilizer in cosmetics, beverages, dairy, and pharmaceuticals. Copovidone serves as a potent solvent in paints, adhesives, and textiles. Additionally, our cross-linked PVPP serves as a high-performance decolorizing agent in wine, pharmaceuticals, and food.
Production Process
01
Material Analysis
The chemicals and materials undergo testing to ensure they meet production standards for quality and purity.
02
Ammonia Treatment Of Butyrolactone Reaction
Some raw material undergoes ammonia treatment to adjust pH, enabling specific conditions for butyrolactone reaction.
03
Polymerization
Small molecule monomers are covalently bonded to form polymer chains, achieving desired molecular weight and structure.
04
Spray Dry
Polymerization product undergoes spray drying, producing polymer powder for further processing and application.
Our Certificate
Business License
Patent Certificate
Patent Certificate