Patent · US Active

Flowability of polycarbonate compositions

US10119009B2 · kind B2 · utility

1Cited by

14References

9Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Rolf Wehrmann · Krefeld, DE
Helmut-Werner Heuer · Krefeld, DE
Anke Boumans · Goch, DE

Key dates

Filing date	Nov 26, 2015
Grant date	Nov 6, 2018
Priority date	—
Expiry date	Nov 26, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L69/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to the use of diglycerol esters for enhancing the flowability of transparent polycarbonate compositions. Melt viscosities and melt volume flow rates are improved. In addition, the diglycerol esters also exert a positive effect on the optical properties by increasing the transmission of the compositions and reducing the yellowness index.

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