Use of a single-component laminating adhesive for composite film lamination

US11015091B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Karl-Heinz Schumacher · Ludwigshafen, DE
• Christine TONHAUSER · Ludwigshafen, DE
• Christoph Kiener · Hersbruck, DE
• Peter Preishuber-Pfluegl · Ludwigshafen, DE
• Andrea KUNTZ · Heidelberg, DE

Key dates

• Filing date: Jan 10, 2017
• Grant date: May 25, 2021
• Expiry date: Jan 10, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2553/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A description is given of the use of a one-component laminating adhesive for composite film lamination, and also of a method for composite film lamination. The laminating adhesive comprises an aqueous polymer dispersion preparable by radical emulsion polymerization of monomers comprising (a) at least 60 wt %, based on the total amount of monomers, of at least one monomer selected from the group consisting of C1 to C20 alkyl acrylates, C1 to C20 alkyl methacrylates, vinyl esters of carboxylic acids comprising up to 20 carbon atoms, vinylaromatics having up to 20 carbon atoms, vinyl halides, vinyl ethers of alcohols comprising 1 to 10 carbon atoms, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds, and mixtures of these monomers, and (b) at least 0.1 wt %, based on the total amount of monomers, of at least one monomer having at least one acid group, and (c) 0.1 to 5 wt %, based on the total amount of monomers, of at least one ethylenically unsaturated compound having at least one functional group selected from keto groups and aldehyde groups; where the aqueous polymer dispersion comprises at least one compound A which has at least two functional groups tha…