NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing chemical solutions that meet both performance and environmental standards. A key aspect of this commitment is understanding the synthesis of our vital intermediate, Polyisobutylene Succinic Anhydride (PIBSA). The production method significantly impacts the quality and environmental footprint of the final product, with chlorine-free thermal adduction emerging as the industry's preferred route.

Traditionally, PIBSA (CAS 67762-77-0) could be produced via two main methods: chlorination addition and thermal addition. The chlorination addition method involves first chlorinating polyisobutylene and then reacting it with maleic anhydride. While effective, this process can leave residual chlorine in the final product. Chlorine contamination can be detrimental in many applications, potentially leading to corrosion or interfering with downstream reactions. Therefore, manufacturers are increasingly moving away from this method.

The thermal adduction method, on the other hand, involves the direct reaction of highly active polyisobutylene (HRPIB) with maleic anhydride at elevated temperatures, typically between 220-250°C. This process is inherently chlorine-free, eliminating the risk of residual chlorine contamination. HRPIB, characterized by a high terminal vinylidene content, ensures a more efficient and cleaner reaction. This leads to a high-purity PIBSA product that is ideal for demanding applications in lubricants, fuels, and other specialty chemicals. NINGBO INNO PHARMCHEM CO.,LTD. primarily utilizes this advanced thermal process to ensure the quality and environmental compliance of our PIBSA supply.

The advantages of a chlorine-free PIBSA are manifold. For lubricant manufacturers, it means a reduced risk of corrosion to engine components and improved compatibility with other additives. In fuel additive formulations, the absence of chlorine contributes to cleaner combustion and fewer harmful byproducts. For industrial applications, a purer PIBSA ensures more predictable performance and fewer side reactions. Companies looking to buy PIBSA can confidently choose suppliers who emphasize chlorine-free synthesis.

NINGBO INNO PHARMCHEM CO.,LTD. offers PIBSA produced via this superior thermal adduction process. We provide technical data and support to help our clients understand the benefits of using our high-quality, chlorine-free PIBSA for their manufacturing needs. Whether you are developing advanced lubricant packages, high-performance fuel additives, or specialized industrial emulsifiers, partnering with us ensures you receive a product manufactured to the highest standards. Contact us today to discuss your requirements for PIBSA.