Patent · US Expired

Heat-insulating shaped fibrous articles and a process for producing them

US4950362A · kind A · utility

9Cited by

3References

4Claims

0Family size

Assignee

Didier-Werke AG · DE

Inventors

Peter Steinau · Mainz, DE
Ludwig Wirth · Wiesbaden, DE
Ingo Elstner · Wiesbaden, DE
Andreas Naumann · Neu-Ulm, DE

Key dates

Filing date	Jul 11, 1989
Grant date	Aug 21, 1990
Priority date	—
Expiry date	Jul 11, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/696
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Elastic, heat-insulating shapes of ceramic, refractory or fireproof fibers and, where needed, further refractory or fireproof substances, and temporary or inorganic binders, as well as a process for the preparation thereof. The heat-insulating shapes are characterized by the fact that they contain 5 to 40 weight % of fibrids comprised of organic polymers, as a result of which they have elastic properties and can be formed with ease at moderate temperatures. In preparing these shapes, a customary aqueous dispersion containing the fibers and binder is mixed with the fibrids of the organic polymer, and water is removed therefrom and the shapes are otherwise produced in a known manner.

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