Patent · US Active

Modified polycarbonates, polyester carbonates and polyesters having improved elongation behavior and flame resistance

US7879967B2 · kind B2 · utility

3Cited by

32References

13Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Wolfgang Ebert · Krefeld, DE
Alexander Karbach · Krefeld, DE
Alexander Meyer · Mülheim an der Ruhr, DE

Key dates

Filing date	Apr 3, 2008
Grant date	Feb 1, 2011
Priority date	—
Expiry date	Feb 20, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/448
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to polycarbonate, polyester carbonate and polyester having end groups derived from alkylsiloxane-substituted phenols, as well as to the use of phenolic compounds having alkylsiloxane substituents as chain terminators in the preparation of polycarbonate, polyester carbonate and polyester, as well as to mouldings and extrudates produced from these polymers, to processes for the preparation of the polymers, and to novel phenolic compounds of formula (2).

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