Masking strip

Patent metadata

Field	Value
Publication number	US-9757755-B2
Application number	US-201113995703-A
Country	US
Kind code	B2
Filing date	Dec 22, 2011
Priority date	Dec 24, 2010
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A masking strip for masking the interior surfaces of a gap between two substrates to be painted is provided, the strip comprising: a backing having a first surface and a second surface, the first surface having an adhesive region to fix the masking strip to an interior surface of the gap; a gap filler extending from the backing and adapted to prevent paint flow into the gap; wherein the first surface of the backing is also provided with a spacing means adapted to space the backing of the masking strip away from the interior surface of the gap to which the strip is fixed, and wherein the masking strip is pre-formed.

First claim

The invention claimed is:

1. A masking strip for masking the interior surfaces of a gap defined between a fixed substrate and a moveable substrate to be painted, the masking strip comprising:
a backing having a first surface and a second surface, the first surface having an adhesive region to fix the masking strip to the fixed substrate along an interior surface of the gap such that a portion of the backing extends into the interior of the gap between the two substrates;
a gap filler extending from the second surface of the backing and adapted to deform to lodge against an underside of the moveable substrate while having no or minimal contact with a portion on an interior surface of the gap;
wherein the first surface of the backing is also provided with a spacing means adapted to space the backing of the masking strip away from the interior surface of the gap to which the masking strip is fixed, wherein the spacing means comprises a spacer;
and wherein the masking strip is pre-formed.

2. The masking strip of claim 1 , wherein the spacing means comprises an adhesive-free region positioned on the first surface of the backing.

3. The masking strip of claim 1 , wherein the cross section of the backing is oval, elliptical, rectangular, triangular, a regular polygon or an irregular polygon.

4. The masking strip of claim 1 , wherein the backing is provided with a bevelled edge.

5. The masking strip of claim 1 , wherein the width of the spacer means is the same as the width of the backing.

6. The masking strip of claim 1 , wherein the width of the spacer is less than the width of the backing.

7. The masking strip of claim 1 , wherein the width of the spacer is greater than the width of the backing.

8. The masking strip of claim 1 , wherein the cross section of the spacer is square, rectangular, triangular, elliptical, circular or polygonal.

9. The masking strip of claim 1 , wherein the backing and spacer are formed from a single piece of material.

10. The masking strip of claim 1 , wherein the backing is foam.

11. The masking strip of claim 1 , wherein the spacer is foam.

12. The masking strip of claim 1 wherein the adhesive region comprises adhesive tape.

13. The masking strip of claim 1 , wherein the backing is flexible to allow the masking strip to be conformed to the gap.

14. The masking strip of claim 1 , wherein a removable protective tape is provided on the adhesive region of the backing.

15. The masking strip of claim 1 , wherein the gap filler is compressible and conformable.

16. The masking strip of claim 1 , wherein the gap filler is folded over onto itself parallel with the backing.

17. The masking strip of claim 1 , wherein the gap filler comprises a closed cell foam material.

18. The masking strip of claim 1 , wherein the cross section of the gap filler is rectangular, square, elliptical, circular, elliptical, triangular or polygonal.

19. The masking strip of claim 1 wherein the gap filler is crimped where it extends from the backing.

Assignees

• Chan Kin-Chau
• Eliason Kevin M
• Brotherton Gary N
• Sinclair Colin D
• Stubbs Roy
• Schwab Jeffrey J
• 3M Innovative Properties Co

Inventors

• Chan Kin-Chau
• Eliason Kevin M
• Brotherton Gary N
• Sinclair Colin D
• Baker Anna B
• Stubbs Roy
• Schwab Jeffrey J

Classifications

• C09J2203/31

  as a masking tape for painting · CPC title

• B05D7/14

  to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23) · CPC title

• B05C21/005 Primary

  Masking devices (stencils B05C17/06; masking devices for which the means for applying liquids or other fluent material is spraying or is not important B05B12/20) · CPC title

• C09J7/0289

  Chemistry & Metallurgy · mapped topic

• B05B15/0456

  Operations & Transport · mapped topic