Use of plastic foams containing swellable fillers for sealing wall channels

US6716377B1 · kind B1 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Markus Kögler · Buchloe, DE
• Franz Heimpel · Affing, DE
• Silvia Huber · Alzenau, DE
• Peter Vogel · Diepersdorf, DE

Key dates

• Filing date: Nov 17, 2000
• Grant date: Apr 6, 2004
• Expiry date: Nov 17, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2475/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The use of a plastic foam system, which contains at least one filler capable of swelling in the presence of water, for sealing openings in buildings, which are in contact with the outside, especially wall, floor and ceiling channels of pipes and/or cables.