Patent · US Expired

Screening process for the production and characterization of polyurethane foam materials

US6840124B2 · kind B2 · utility

1Cited by

7References

1Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Joachim Wagner · Ludwigshafen, DE
Peter Jahn · Leverkusen, DE
Jacqueline Kusan-Bindels · Neuss, DE
Dagmar Ulbrich · Monheim, DE
Rolf Albach · Recklinghausen, DE
Hermann-Josef Kirschbaum · Kerpen, DE

Key dates

Filing date	Feb 24, 2003
Grant date	Jan 11, 2005
Priority date	—
Expiry date	Apr 16, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/25
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Rapid and efficient production and examination of formulations for polyurethane foams using only small amounts of materials are achieved by allowing the foam-forming mixture to foam in a container, preparing disks from sections of the container in which the foam is present and removing a plurality of cylindrical samples having substantially the same density from the disk.

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