Patent · US Expired

Transparent heat protection element

US5565273A · kind A · utility

29Cited by

12References

18Claims

0Family size

Assignee

Vetrotech AG · CH

Inventors

Walter Egli · San Diego, US
Horst Seidel · Frankfurt, DE
Simon Frommelt · Haan, DE
Christoph Giesbrecht · Muri, CH

Key dates

Filing date	Jul 15, 1994
Grant date	Oct 15, 1996
Priority date	—
Expiry date	Jul 15, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/921
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The heat protection element comprises carrier elements, for example in the form of glass plates. In an interspace between, in each instance, two glass plates a protection layer comprising a cured polysilicate which is formed of alkali silicate and at least one curing agent is disposed. In the polysilicate, a molar ratio of silicon dioxide to alkali metal oxide is set to be greater than 4:1. The starting composition for the polysilicate is a free-flowable composition having a water content of up to 60 percent and capable of being introduced into the interspace between two carrier elements. After curing the composition, the high water content is retained and the polysilicate has nevertheless good inherent strength and adhesion on the carrier elements.

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