Polyisobutylene derivatives as rubber additives
By using polyisobutylene derivatives in rubber to improve the miscibility and compatibility of rubber with filler materials, the problems of decreased tire performance and harmful emissions have been solved, resulting in more efficient tire performance and environmentally friendly processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BASF SE
- Filing Date
- 2024-11-13
- Publication Date
- 2026-06-19
AI Technical Summary
Existing technologies are unable to effectively solve the problems of miscibility and compatibility between rubber and filler materials and other additives, leading to a decline in tire performance. At the same time, the use of processing aids such as silanes releases harmful substances, affecting occupational health and the environment.
Polyisobutylene derivatives, including polyisobutylene-substituted succinic anhydride (PIBSA) and its derivatives, are used as additives to improve dispersibility and compatibility by reacting with polarity-differentiated components in rubber and to capture alcohols released during processing.
It improves the dispersion, particle size control, wet adhesion, abrasion resistance and rolling resistance of tires, while reducing the emission of harmful substances and improving the overall performance and environmental friendliness of the rubber composition.
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