Laminar structure providing adaptive thermal insulation

US9662516B2 · kind B2 · utility

Assignee

• W.L. Gore & Associates GmbH · DE

Inventors

• Guenter Kiederle · Feldkirchen-Westerham, DE
• Stefan Hauer · Bad Wiessee, DE
• Helga Baumgaertler · Hohenlinden, DE
• Reiner Kasemann · Munich, DE

Key dates

• Filing date: Jan 28, 2011
• Grant date: May 30, 2017
• Expiry date: Apr 23, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/231
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The invention relates to a laminar structure (10) providing adaptive thermal insulation, comprising a first layer (12), a second layer (14), at least one cavity (16) provided in between the first layer (12) and the second layer (14), the cavity (16) being enclosed by a water vapor permeable and at least temporarily gas impermeable envelope (20); a gas generating agent (18) having an unactivated configuration and an activated configuration, the gas generating agent (18) being adapted to change from the unactivated configuration to the activated configuration, such as to increase a gas pressure inside the cavity (16), in response to an increase in temperature in the cavity (16), the first layer (12), the second layer (14) and the cavity (16) being arranged such that a distance (d) between the first layer (12) and the second layer (14) increases in response to the increase in gas pressure inside the cavity (16).