METHOD FOR CONTINUOUS, SOLVENT AND MASTICATION-FREE PRODUCTION OF PRESSURE-SENSITIVE SELF-ADHESIVE MATERIALS BASED ON NON-THERMOPLASTIC ELASTOMERS AND THEIR COATING FOR THE PRODUCTION OF SELF-ADHESIVE ARTICLES

US6780271B1 · kind B1 · utility

Assignee

• tesa AG · DE

Inventors

• Axel Burmeister · Hamburg, DE
• Sven Hansen · Hamburg, DE
• Frank Henke · Neu Wulmstorf, DE
• Ralf Hirsch · Quickborn, DE
• Heiko Leydecker · Neustadt, DE
• Klaus Massow · Hamburg, DE
• Jochen Stähr · Hannover, DE

Key dates

• Filing date: Jun 21, 2000
• Grant date: Aug 24, 2004
• Expiry date: Jun 21, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2453/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Process for the continuous solvent-free and mastication-free production of self-adhesive compositions based on non-thermoplastic elastomers in a continuously operating apparatus having a filling section and a compounding section, comprisinga) feeding the solid components of the self-adhesive composition, such as elastomers and resins, into the filling section of the apparatus, optionally feeding of fillers, colorants and/or crosslinkers,b) transferring the solid components of the self-adhesive composition from the filling section to the compounding section,c) adding the liquid components of the self-adhesive composition, such as plasticizers, crosslinkers and/or further tackifier resins to the compounding section,d) preparing a homogeneous self-adhesive composition in the compounding section, ande) discharging the self-adhesive composition.