Patent · US Active

Reduction in VOC and FOG values of polypropylene grades by aeration

US12281218B2 · kind B2 · utility

0Cited by
3References
13Claims
0Family size

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Key dates

Filing dateOct 30, 2019
Grant dateApr 22, 2025
Priority date
Expiry dateFeb 20, 2042

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L2207/062
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A process for reducing the amount of volatile and semi-volatile organic substances of a polypropylene composition to below 150 μg/g (VOC, VDA 278 October 2011) and below 350 μg/g (FOG, VDA 278 October 2011).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.