Form body for heat insulation and vacuum insulation panel with asymmetric design

US5316816A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Gerhard Sextl · Geiselbach, DE
• Hans Strack · Alzenau, DE
• Roland Reuter · Darmstadt, DE
• Ilona Fuss · Maintal, DE
• Peter Kleinschmit · Hanau, DE
• Rudolf Schwarz · Alzenau, DE

Key dates

• Filing date: Jan 22, 1993
• Grant date: May 31, 1994
• Expiry date: Jan 22, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/239
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shaped body, preferably plate-shaped, for use as heat insulation, formed of (a) a finely distributed, powdery or fibrous substance, (b) a microporous casing, and (c) a gastight and watertight, metal-free casing. The shaped body is produced by drying a powdery or fibrous substance if necessary, optionally placing it into a microporous casing, optionally pressing and then optionally drying. Thereafter, the powdery substance is placed with the microporous casing into a gastight and watertight, metal-free casing. This gastight and watertight casing is optionally evacuated and sealed. Furthermore, a shaped article, preferably plate-shaped, for use as heat insulation, produced from (a) a finely distributed, powdery or fibrous substance with a water absorption capacity of 4 to 50% by weight at 23.degree. C. and 85% relative humidity, (b) a casing of two parts with asymmetric design which contains this finely distributed, powdery or fibrous substance, the first part of the casing being metal-free and concave in such a manner that it is completely filled by the preferably plate-like shaped article and the second part being metal-free or metallic and planar and connected to the trough in s…