Patent · US Active

Apparatus and process for producing products from pigment-containing polymer mixtures

US9561613B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Birgit Derfuss · Mülheim an der Ruhr, DE
Michael Bierdel · Leverkusen, DE
Carsten Conzen · Leverkusen, DE

Key dates

Filing date	Jul 13, 2011
Grant date	Feb 7, 2017
Priority date	—
Expiry date	Aug 21, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/742
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to an apparatus and a process for producing pigment-containing, in particular carbon-black-containing, polymer mixtures comprising polycarbonates and optionally elastomers, and/or other components, where the mouldings produced therefrom have, after the shaping process via injection moulding or via extrusion, improved surface properties and improved mechanical properties.

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