Reactive 2-component adhesive film system

Patent metadata

Field	Value
Publication number	US-10400140-B2
Application number	US-201414894804-A
Country	US
Kind code	B2
Filing date	Jun 5, 2014
Priority date	Jun 17, 2013
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

Reactive adhesive film, comprising (a) a polymeric film-forming matrix, (b) at least one reactive monomer or reactive resin, and (c) a reagent selected from the group consisting of a radical initiator and an activator, and a reactive 2-component adhesive film system for bonding various materials, such as metal, wood, glass and/or plastic.

First claim

The invention claimed is:

1. A solid-form reactive adhesive film, comprising:
(a) an inert thermoplastic polyurethane film-forming matrix;
(b) an at least one reactive monomer selected from the group consisting of methyl methacrylate, methacrylic acid, cyclohexyl methacrylate, tetrahydrofurfuryl methacrylate, 2-phenoxyethyl methacrylate, di(ethylene glycol)methyl ether methacrylate, and ethylene glycol dimethacrylate; and
(c) a reagent selected from the group consisting of a radical initiator and an activator,

wherein the solid-form reactive adhesive film has pressure-sensitive adhesive properties.

2. The solid-form reactive adhesive film as claimed in claim 1 , wherein the radical initiator is a peroxide.

3. The solid-form reactive adhesive film as claimed in claim 1 , wherein the activator is an amine, a dihydropyridine derivative, a transition metal salt, or a transition metal complex.

4. The solid-form reactive adhesive film as claimed in claim 1 , wherein:
i) the inert thermoplastic polyurethane film-forming matrix is present at 20 to 80% by weight of the at least one reactive monomer; and
ii) the radical initiator is present at 3 to 30% by weight.

5. The solid-form reactive adhesive film as claimed in claim 1 , wherein:
i) the inert thermoplastic polyurethane film-forming matrix is present at 20 to 80% by weight of the at least one reactive monomer); and
ii) the activator is present at more than 0 to 40% by weight.

6. A solid-form reactive adhesive film system comprising two solid-form reactive adhesive films as claimed in claim 1 , wherein the first solid-form reactive adhesive film comprises a radical initiator and the second solid-form reactive adhesive film comprises an activator.

7. A solid-form reactive adhesive film system comprising two or more solid-form reactive adhesive films as claimed in claim 1 , wherein a first solid-form reactive adhesive film comprises a radical initiator and a second solid-form reactive adhesive film comprises an activator and these two solid-form reactive adhesive films are present alternately.

8. The solid-form reactive adhesive film system as claimed in claim 6 , further comprising films, layers, adhesives, backings, release papers and/or release liners.

9. A method for bonding materials of metal, wood, glass and/or plastic materials, where said materials are bonded with the solid-form reactive adhesive film of claim 1 .

10. A method for producing a solid-form reactive adhesive film comprising the steps of:
1. dissolving and/or finely distributing ingredients in one or more solvent(s) and/or water;
2. mixing the dissolved and/or finely distributed ingredients;
3. coating a release liner, a release paper, a backing material, or a pressure-sensitive adhesive with the mixture of dissolved and/or finely distributed ingredients;
4. evaporating the one or more solvent(s) and/or water, thereby forming a solid-form reactive adhesive film; and
5. optionally winding the solid-form reactive adhesive film into a roll,

wherein:
the ingredients comprise:
(a) an inert thermoplastic polyurethane film-forming matrix;
(b) an at least one reactive monomer selected from the group consisting of methyl methacrylate, methacrylic acid, cyclohexyl methacrylate, tetrahydrofurfuryl methacrylate, 2-phenoxyethyl methacrylate, di-(ethylene glycol)-methyl ether methacrylate, and ethylene glycol dimethacrylate; and
(c) a reagent selected from the group consisting of a radical initiator and an activator; and

the solid-form reactive adhesive film has pressure-sensitive adhesive properties.

11. A kit for providing a two-component adhesive film system, comprising:
(i) at least one first solid-form reactive adhesive film as claimed in claim 1 comprising a radical initiator; and
(ii) at least one second solid-form reactive adhesive film as claimed in claim 1 comprising an activator.

12. A composite bonded by means of the reactive adhesive film system as claimed in claim 6 .

13. A method for bonding two join partners to one another, wherein the join partners are fixed to one another by a self-adhesive bonding system and are ultimately bonded by a reactive adhesive film system as claimed in claim 6 .

14. A composite bonded by the kit as claimed in claim 11 .

Assignees

• Tesa Se

Inventors

• Schümann Uwe
• Schmitz-Stapela Daniel
• Reiter Sven
• Dollase Thilo

Classifications

• C09J151/08

  grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• C09J175/04

  Polyurethanes · CPC title

• C09J5/04

  involving separate application of adhesive ingredients to the different surfaces to be joined · CPC title

• C09J4/06

  {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00 · CPC title