Composite article and methods for making the same

Patent metadata

Field	Value
Publication number	US-10570260-B2
Application number	US-201314649335-A
Country	US
Kind code	B2
Filing date	Dec 3, 2013
Priority date	Dec 4, 2012
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

The invention relates to a composite article comprising: —an item (2) to be attached to a substrate; and —an adhesive tape (3) for attaching the item to the substrate, the adhesive tape having a substantially flat shape with a first main surface (6) facing the item, the first main surface extending in a cross section perpendicular to the first main surface from a first edge (8) to a second edge (9); —a lamination region (11) on the first surface, wherein the lamination region is the region where the adhesive tape is laminated to the item; and —wherein the lamination region is smaller than the first main surface. The invention also relates to a method of making a composite article.

First claim

The invention claimed is:

1. A composite article comprising:
an item ( 2 ) to be attached to a substrate; and
an adhesive tape ( 3 ) for attaching the item ( 2 ) to the substrate, the adhesive tape ( 3 ) having a substantially flat shape with a first main surface ( 6 ) facing the item ( 2 ), the first main surface ( 6 ) extending in a cross section perpendicular to the first main surface ( 6 ) from a first edge ( 8 ) to a second edge ( 9 );
a lamination region ( 11 ) on the first main surface ( 6 ), wherein the lamination region ( 11 ) is the region where the adhesive tape ( 3 ) is laminated to the item ( 2 ); and
wherein the lamination region ( 11 ) is continuous and smaller than the first main surface ( 6 ).

2. The composite article according to claim 1 , wherein the item ( 2 ) to be attached to a substrate is a shaped rubber article.

3. The composite article according to claim 1 , wherein the substrate is a motor vehicle body.

4. The composite article according to claim 1 , wherein the adhesive tape ( 3 ) for attaching the item ( 2 ) to the substrate comprises a heat-activatable adhesive layer ( 5 ) and a pressure-sensitive adhesive layer ( 4 ), wherein the heat-activatable adhesive layer faces the item and is laminated to the item.

5. The composite article according to claim 4 , wherein the heat-activatable adhesive layer ( 5 ) is a resin layer, wherein the resin is a polymer of one or more monomers selected from the group consisting of olefins.

6. The composite article according to claim 4 , wherein the pressure-sensitive adhesive layer ( 4 ) comprises an acrylic pressure sensitive adhesive.

7. A motor vehicle comprising the composite article according to claim 1 .

8. A composite article comprising:
an item ( 2 ) to be attached to a substrate; and
an adhesive tape ( 3 ) for attaching the item ( 2 ) to the substrate, the adhesive tape ( 3 ) having a substantially flat shape with a first main surface ( 6 ) facing the item ( 2 ), the first main surface ( 6 ) extending in a cross section perpendicular to the first main surface ( 6 ) from a first edge ( 8 ) to a second edge ( 9 );
a lamination region ( 11 ) on the first main surface ( 6 ), wherein the lamination region ( 11 ) is the region where the adhesive tape ( 3 ) is laminated to the item ( 2 ); and
wherein the lamination region ( 11 ) is smaller than the first main surface ( 6 ), and wherein the lamination region ( 11 ) is arranged such that the cross section thereof perpendicular to the first main surface ( 6 ) has the same distance to the first edge ( 8 ) as to the second edge ( 9 ), providing on each side regions ( 12 ) and ( 13 ) where the adhesive tape ( 3 ) is not laminated to the item ( 2 ).

9. A method of making a composite article according to claim 1 , comprising the steps of:
providing the item ( 2 ) to be attached to the substrate;
providing the adhesive tape ( 3 ) for attaching the item ( 2 ) to the substrate, the adhesive tape ( 3 ) having a substantially flat shape with the first main surface ( 6 ) facing the item ( 2 );
laminating the adhesive tape ( 3 ) to the item ( 2 ), such that the lamination region ( 11 ) between the item ( 2 ) and the adhesive tape ( 3 ), where the adhesive tape ( 3 ) is laminated to the item ( 2 ), is continuous and smaller than the first main surface.

10. The method of making the composite article according to claim 9 , wherein the adhesive tape ( 3 ) is activated by Infrared and/or Near-Infrared.

11. The method of making the composite article according to claim 10 , wherein a masking method or focusing is used to selectively activate the lamination region ( 11 ).

Assignees

• 3M Innovative Properties Co

Inventors

• Richert Detlef
• Koenig Alexander M

Classifications

• C09J2400/16

  Metal · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• C09J2421/006

  in the substrate · CPC title

• C09J2423/00

  Presence of polyolefin · CPC title

• C08J2423/02

  not modified by chemical after treatment · CPC title