Patent · US Expired

Polycarbonate containers

US6682794B1 · kind B1 · utility

5Cited by

1References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Klaus Horn · Dortmund, DE
Steffen Kuhling · Meerbusch, DE
Ralf Hufen · Duisburg, DE
Rolf Lanze · Krefeld, DE
Michael Prein · Brasschaat, BE
Rainer Neumann · Krefeld, DE
Hermann Kauth · Krefeld, DE
Frieder Heydenreich · Düsseldorf, DE
Tony van Osselaer · Krefeld, DE

Key dates

Filing date	Mar 5, 2002
Grant date	Jan 27, 2004
Priority date	—
Expiry date	Mar 5, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1352
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A container made of polycarbonate resin is disclosed. The container is characterized in that the polycarbonate is prepared by the phase interface process that is characterized in that the aqueous solution of an alkali salt of a bisphenol used, contains dissolved oxygen in an amount less than 150 ppb. The process for making the container is also disclosed.

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