Process for processing an adhesive and a device therefor

US10780446B2 · kind B2 · utility

Assignee

• Olbrich GmbH · DE

Inventors

• Andre Josten · Bocholt, DE
• Dirk ROBELING · Bocholt, DE
• Frederic Wenning · Bocholt, DE

Key dates

• Filing date: Dec 17, 2015
• Grant date: Sep 22, 2020
• Expiry date: May 19, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2343/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a process for processing an adhesive, wherein the process comprises applying an adhesive precursor product onto an adhesive carrier and activating and crosslinking the adhesive precursor product by treating the adhesive precursor product with water vapor and heat in a reaction chamber, and wherein the process is characterized in that air mixed with reaction gases forming during the activation and crosslinking in the reaction chamber is conducted away from the reaction chamber and recirculated as circulating air into the reaction chamber, wherein a portion of used air of the air recirculated as circulating air is replaced by fresh air. The invention further relates to a corresponding device for processing a pressure sensitive hot-melt adhesive.