Patent · US Expired

Polycarbonate substrates

US6815524B1 · kind B1 · utility

2Cited by

1References

4Claims

0Family size

Assignees

BAYER HEALTHCARE LLC · DE
Bayer Antwerpen N.V. · BE

Inventors

Michael Bödiger · Dormagen, DE
Steffen Kuhling · Meerbusch, DE
Franky Bruynseels · Sint-Gillis-Waas, BE
Dirk Van Meirvenne · Bang Phra, TH
René de Cleyn · Brasschaat, BE

Key dates

Filing date	Aug 5, 2002
Grant date	Nov 9, 2004
Priority date	—
Expiry date	Aug 5, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31507
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polycarbonate substrates having low concentration of defects are disclosed. The substrates are suitable for producing molded articles characterized by low cloudiness.

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