High molecular weight polyisobutylene (HPIB) is a crucial specialty chemical, prized for its exceptional gas barrier properties, water resistance, and high-temperature stability. It is a key material in manufacturing butyl rubber, tackifiers, sealants, and lubricant additives. As a global manufacturing leader, China has developed a robust and technologically advanced HPIB industry, moving from being an importer to a significant and competitive producer on the world stage. These factories are central to supply chains in automotive, construction, and energy sectors. The following list highlights the leading Chinese producers driving innovation and quality in this specialized chemical market.
1.Zhejiang Cenway Materials Co., Ltd.
was established in July 2008 in Jiaxing Port District China Chemical New Materials (Jiaxing) Park.Cenway is a new material enterprise integrating R &D, production and sales , incubated by Tsinghua Industrial Development Research Institute.
Cenway has two factories in Zhejiang and Liaoning provinces, and is the only company in the world that can simultaneously produce full grades of polyisobutylene and butyl rubber.
Based on the C4 industry chain, Cenway adheres to the customer value-driven innovation concept, focuses on technological progress, and is determined to become a supplier of new material products and solutions for high-growth industries.