Flexible masking tape

• US 5,464,692 A
• Filed: 06/17/1993
• Issued: 11/07/1995
• Est. Priority Date: 06/17/1993
• Status: Expired due to Term

• Current Assignee: Quality Manufacturing Inc. (Integrated Aerospace Manufacturing LLC)
• Original Assignee: Quality Manufacturing Inc. (Integrated Aerospace Manufacturing LLC)
• Inventors: Huber, Mortimer J.
• Primary Examiner(s): Davis, Jenna L.
• Application Number:
  US08/078,578
• Time in Patent Office: 873 Days
• Field of Search: 428/343, 428/350, 428/352, 427/208.4
• US Class Current: 428/343
• CPC Class Codes: B05B 12/24 made at least partly of flexible material, e.g. sheets of paper or fabric
• CPC Class Codes: C09J 2203/31 as a masking tape for painting
• CPC Class Codes: C09J 7/245 Vinyl resins, e.g. polyvinyl chloride [PVC]
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/283 Water activated
• CPC Class Codes: Y10T 428/2839 with release or antistick coating

Abstract

A removable masking tape suitable for protecting a surface on a substrate that has irregular curvatures and contours, the masking tape containing a polymeric tape that is flexible and deformable to conforming to the contour, or curvature of the surface. After the masking tape has been applied to the surface of the substrate, the masking tape is capable of maintaining the contour and the curvature in the position it is applied over time without departure.

Claims

1. A method of making a removable masking tape suitable for protecting a surface of a substrate having irregular contours, comprising

(a) providing a polymeric tape that is flexible, stretchable, compressible and deformable for conforming to a contour of the surface having substantial planar curvature without departing from the contour when said masking tape is applied to the surface of the substrate;

and

(b) rendering the polymeric tape capable of adhering to the surface of the substrate, wherein the polymeric tape contains a polyvinyl acetate resin and is water soluble.

2. The method of claim 1 wherein the masking tape has an outer edge and an inner edge, said outer edge, when the masking tape is made to have a width of about 1.27 cm and applied to a surface of a substrate, capable of conforming to a planar contour having a curvature of at least about 10°

per cm without either the inner edge forming one or more folds or the outer edge creeping or lifting from the surface of the substrate.

3. The method of claim 1 wherein the masking tape has an outer edge and an inner edge, said outer edge, when the masking tape is made to have a width of about 1.27 cm and applied to a surface of a substrate, capable of conforming to a planar contour having a curvature of about 10°

to about 12°

per cm without either the inner edge forming one or more folds or the outer edge creeping or lifting from the surface of the substrate.

4. The method of claim 1 wherein the masking tape has an outer edge and an inner edge, said inner edge, when the masking tape is made to have a width of about 0.32 cm and applied to a surface of a substrate, capable of conforming to a planar contour having a curvature of at least about 50°

per cm without either the inner edge forming one or more folds or the outer edge creeping or lifting from the surface of the substrate.

5. The method of claim 1 wherein the masking tape has an outer edge and an inner edge, said inner edge, when the masking tape is made to have a width of about 0.32 cm and applied to a surface of a substrate, capable of conforming to a planar contour having a curvature of about 50°

to about 60°

per cm without either the inner edge forming one or more folds or the outer edge creeping or lifting from the surface of the substrate.

6. The method of claim 1 wherein the masking tape is capable of conforming to the contour of the surface without departing from such a contour when the masking tape is deformed at least about 10% in either planar direction from its normal condition and applied to the surface of the substrate.

7. The method of claim 1 wherein the masking tape is capable of conforming to the contour of the surface without departing from such a contour when the masking tape is deformed about 10 to about 20% in either planar direction from its normal condition and applied to the surface of the substrate.

8. The method of claim 1 wherein the polymeric tape is rendered capable of adhering to a surface by coating at least a portion of one surface of the polymeric tape with a pressure sensitive adhesive.

9. The method of claim 8 wherein the adhesive is water soluble.

10. The method of claim 1 wherein the polymeric tape is capable of adhering to the surface of the substrate.

11. The method of claim 1 wherein one surface of the polymeric tape has a release agent disposed thereon such that the masking tape will not adhere to itself.

12. The method of claim 1 wherein the polymeric tape has a metallic wire disposed therein.

13. A removable masking tape suitable for protecting a surface on a substrate having irregular contours, the masking tape comprising a polymeric tape that is flexible, stretchable, compressible and deformable for conforming to the contour of the surface having substantial planar curvature without departing from the contour when said masking tape is applied to the surface of the substrate, wherein the polymeric tape contains a polyvinyl acetate resin and is water soluble.

14. The masking tape of claim 13 wherein the masking tape is capable of conforming to the contour of the surface without departing from such a contour when the masking tape is deformed at least 10% in either planar direction from its normal condition and applied to the surface of the substrate.

15. The masking tape of claim 13 wherein the masking tape is capable of conforming to the contour of the surface without departing from such a contour when the masking tape is deformed about 10% to about 20% in either planar direction from its normal condition and applied to the surface of the substrate.

16. The masking tape of claim 13 further comprising a pressure sensitive adhesive disposed on at least part of a surface of the polymeric tape.

17. The masking tape of claim 16 wherein the adhesive is soluble in water.