城北化学工業 List of Products and Services

Our company has been a specialized manufacturer of phosphite esters for 40 years since its establishment, providing phosphorus compounds that are utilized in a wide range of fields, such as heat resistance enhancers, antioxidants, modifiers for plastics, fibers, and rubber, as well as extreme pressure additives for lubricants and intermediates for agrochemicals and pharmaceuticals. Additionally, leveraging our accumulated technology, we have actively ventured into new areas, including the development of foam catalysts for urethane, desulfurization catalysts for city gas, rust inhibitors for copper, and ultraviolet absorbers. In recent years, we have expanded our activities with a global perspective and will continue to focus on the development of high value-added products as a global niche enterprise group. 【Business Activities】 ■ Manufacturing and sales of synthetic resin additives ■ Manufacturing and sales of lubricant additives ■ Manufacturing and sales of various chemicals *For more details, please refer to our catalog or feel free to contact us.

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• Lubricants
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"Ran-Ran" is a new type of volatile corrosion inhibitor (VCI) packed in specially processed paper that is resistant to water and oil, while also being highly breathable. It comes in a convenient mini pack that can be placed inside sealed containers, packaging, or packing, eliminating the need for applying anti-rust oil. It vaporizes at room temperature like naphthalene, forming a film on the surface of metals to prevent rust. 【Features】 - Effective not only on iron, cast iron, and stainless steel (SUS), but also on non-ferrous metals such as copper and aluminum. - Quick-acting with long-term rust prevention. - Provides rust protection even in hard-to-reach areas due to vaporized gas. - Reduces costs associated with applying anti-rust oil and cleaning processes. - The outer packaging of the product has water and oil repellent functions. *For more details, please refer to the catalog or feel free to contact us.

• Other packaging materials