Patent · US Expired

Production of sheet-like polyurethane moldings

US5885394A · kind A · utility

9Cited by

25References

6Claims

0Family size

Assignee

BASF SE

Inventors

Dietrich Scherzer · Neustadt, DE
Bernd Bruchmann · Ludwigshafen, DE
Rolf Illguth · Diepholz, DE
Ludwig Jung · Fürstenfeldbruck, DE

Key dates

Filing date	Feb 13, 1997
Grant date	Mar 23, 1999
Priority date	—
Expiry date	Feb 13, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In a process for producing sheet-like polyurethane moldings by impregnation of porous sheets with a polyurethane system and subsequent reaction of the polyurethane system in a mold, the porous sheet is first fully impregnated with a polyurethane component, then fully impregnated with the other polyurethane component and the molding is then produced in a heated mold by reaction of the polyurethane components.

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