Method for bonding a cover material to a shaped article

Patent metadata

Field	Value
Publication number	US-10525633-B2
Application number	US-201615363528-A
Country	US
Kind code	B2
Filing date	Nov 29, 2016
Priority date	Dec 22, 2015
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

Method for bonding a sheetlike cover material to a shaped article,
using an adhesive film comprising at least one layer of a heat-activatedly bondable adhesive, where the adhesive film is disposed, over the full area or a partial area, between the cover material and the shaped article, the heat-activatedly bondable adhesive as yet not adhering to the shaped article, wherein the cover material is pulled onto the shaped article under tension, so that the layer of the heat-activatedly bondable adhesive contacts the shaped article, and the activation of the heat-activatedly bondable adhesive is brought about by means of the pressure resulting exclusively from the tension, and optionally of heat introduced by means of external energy supply, whereby the heat-activatedly bondable adhesive adheres to the shaped article and a durable connection of the cover material to the shaped article is produced.

First claim

The invention claimed is:

1. Method for bonding a sheetlike cover material to a shaped article, comprising:
pulling a cover material onto a shaped article under tension so that a layer of heat-activatedly bondable adhesive contacts the shaped article;
activating the layer of heat-activatedly bondable adhesive by means of pressure, said pressure resulting exclusively from the tension, and by means of heat introduced by an external energy supply,

wherein:
the layer of heat-activatedly bondable adhesive adheres to the shaped article so that a connection between the cover material and the shaped article is produced; and
an adhesive film is disposed between the cover material and the shaped article when the layer of heat-activatedly bondable adhesive has not yet adhered to the shaped article.

2. Method according to claim 1 , wherein the layer of heat-activatedly bondable adhesive is fixed on the cover material prior to contact with the shaped article.

3. Method according to claim 1 , wherein a layer of self-adhesive is disposed between the layer of heat-activatedly bondable adhesive and the cover material.

4. Method according to claim 1 , wherein the cover material is a textile, a leather, a synthetic leather, or a polymeric film.

5. Method according to claim 1 , wherein the cover material is additionally mechanically attached to the shaped article.

6. Method according to claim 1 , wherein the shaped article is a core and the cover material is a covering of a vehicle steering wheel.

Assignees

• Tesa Se

Inventors

• Sellin Jannik
• Niemeyer Thomas
• Von Possel Esther

Classifications

• B29C65/02

  by heating, with or without pressure · CPC title

• C09J7/00

  Adhesives in the form of films or foils · CPC title

• C09J5/00 Primary

  Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers · CPC title

• B29C65/70

  by moulding (using a particular moulding technique, see the relevant technique {, e.g. by injection B29C45/14467}) · CPC title

• C09D175/04

  Polyurethanes · CPC title