Invention Grant
- Patent Title: Use of a single-component laminating adhesive for composite film lamination
-
Application No.: US16069320Application Date: 2017-01-10
-
Publication No.: US11015091B2Publication Date: 2021-05-25
- Inventor: Karl-Heinz Schumacher , Christine Tonhauser , Christoph Kiener , Peter Preishuber-Pfluegl , Andrea Kuntz
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: EP16151707 20160118
- International Application: PCT/EP2017/050365 WO 20170110
- International Announcement: WO2017/125277 WO 20170727
- Main IPC: C09J133/10
- IPC: C09J133/10 ; B32B7/12 ; B32B27/36 ; C09J133/06 ; B32B27/30 ; C09J4/00 ; B32B23/04 ; B32B15/08 ; B32B27/32 ; B32B27/34 ; B32B15/20 ; B32B27/08 ; B32B23/08 ; B32B15/088 ; B32B27/16 ; B32B27/28 ; B32B27/06 ; B32B15/085 ; B32B15/09 ; B32B37/12 ; C09J133/08

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 that are able to enter into a crosslinking reaction with keto groups or with aldehyde groups; where the molar ratio of the groups of the compound A that are reactive with keto groups or with aldehyde groups to the keto and aldehyde groups of the monomer (b) is from 1:10 to 2:1; and where, in the composite film lamination, at least two films are bonded to one another with the laminating adhesive so firmly that the peel strength is 2.5 N/15 mm or more or that the films bonded to one another are partable only with destruction of at least one of the films. The composite films can be used for the packing of foods.
Public/Granted literature
- US20190016931A1 USE OF A SINGLE-COMPONENT LAMINATING ADHESIVE FOR COMPOSITE FILM LAMINATION Public/Granted day:2019-01-17
Information query
IPC分类: