Controlled rheology (CR) polypropylene resins are prepared by a process comprising the step of contacting under scission conditions a non-CR-polypropylene resin having a low melt flow rate (MFR) with cyclic peroxide. The CR polypropylene resins made by the process of this invention are useful in manufacturing articles that exhibit reduced VOC emissions relative to CR-polypropylene resins made by an identical process except with non- cyclic peroxide. These low-VOC, CR-polypropylene resins are particularly useful in making non-metallic components for automobile interiors.
CITATION STYLE
Hammerschmid, K., & Gahleitner, M. (1999). Controlled rheology polypropylene (pp. 95–103). https://doi.org/10.1007/978-94-011-4421-6_14
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