Self-sticking drywall tape

• US 5,246,775 A
• Filed: 01/03/1992
• Issued: 09/21/1993
• Est. Priority Date: 01/03/1992
• Status: Expired due to Term

• Current Assignee: Salvatore M. Loscuito
• Original Assignee: Salvatore M. Loscuito
• Inventors: Loscuito, Salvatore M.
• Primary Examiner(s): Ryan, Patrick J.
• Assistant Examiner(s): Bahta, Abraham
• Application Number:
  US07/816,469
• Time in Patent Office: 627 Days
• Field of Search: 428/343, 428/906, 428/131, 428/195, 428/138, 428/202, 52/417, 52/420
• US Class Current: 428/343
• CPC Class Codes: C09J 2301/18 characterized by perforations in the adhesive tape
• CPC Class Codes: C09J 2400/283 in the substrate
• CPC Class Codes: C09J 7/21 Paper; Textile fabrics
• CPC Class Codes: E04F 13/04 Bases for plaster sub-ceilings with plaster-carrying means E04B9/06
• CPC Class Codes: E04F 13/042 Joint tapes
• CPC Class Codes: Y10S 428/906 Roll or coil
• CPC Class Codes: Y10T 428/1462 Polymer derived from material having at least one acrylic or alkacrylic group or the nitrile or amide derivative thereof [e.g., acrylamide, acrylate ester, etc.]
• CPC Class Codes: Y10T 428/24273 including aperture
• CPC Class Codes: Y10T 428/24331 including nonapertured component
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/2486 with outer strippable or release layer
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer

Abstract

A tape for seams in drywall constructions comprises an elongated paper tape member having a pattern of holes therein. The holes are aligned in rows extending across the width of the tape with one row being spaced from the other along the length of the tape. An acrylic adhesive is applied to one surface of the tape so that it can be attached by the adhesive to a drywall seam. Compound placed onto the outer surface of the tape penetrates the perforations, holding the tape to the seam.

Claims

1. Tape for seams in a drywall construction, comprising:

an elongated tape member of porous material compatible with a drywall compound having a selected width large enough to cover a drywall seam, an outer surface for facing away from the drywall seam, and an inner surface for facing toward the drywall seam;

a layer of pressure sensitive acrylic adhesive on the inner surface of the tape member for adhering the tape member to the drywall seam, the adhesive having moderate sticking properties such that the tape can be removed from the drywall seam and can be reapplied to the drywall seam for proper positioning; and

a pattern of perforations through the tape member and the layer of adhesive, the pattern comprising a multiplicity of spaced perforations distributed evenly across and along the tape member for penetration by the drywall compound for application over the tape member on the drywall seam, the tape member having a ratio between a total area of all perforations in the tape member, to a total area of the tape member of approximately 1/3 to 2/3.

2. Tape according to claim 1 including a fold line in said tape member lying centrally of said selected width and along a full length of said tape member.

3. Tape according to claim 2 wherein said width is about from 13/4 to 21/2 inches.

4. Tape according to claim 3 wherein said pattern of perforations comprises a multiplicity of rows of perforations extending across said width and spaced along the length of said tape member, each perforation in one row being spaced at a cross pitch distance of about from 3/16 to one inch and each row being spaced from an adjacent row along the length said tape member by a longitudinal pitch of about 1/8 to 3/4 inch.

5. Tape according to claim 4 wherein each perforation has a dimension of about 1/16 to 1/4 inch.

6. Tape according to claim 5 wherein perforations in one row are staggered with respect to perforations in an adjacent row along said tape member.

7. Tape according to claim 6 wherein said cross pitch is about 3/8 inch said longitudinal pitch is about 1/4 inch and each perforation is about 1/8 inch in size.

8. Tape according to claim 1 wherein the ratio between the total area of all perforations in the tape member, to the total area of the tape member is about 1/2.

9. Tape according to claim 1 wherein said pattern of perforations comprises a multiplicity of rows of perforations extending across said width and spaced along the length of said tape member, each perforation in one row being spaced at a cross pitch distance of from 3/16 to one inch and each row being spaced from an adjacent row along the length said tape member by a longitudinal pitch of 1/8 to 3/4 inch.

10. Tape according to claim 9 wherein each perforation has a dimension of 1/16 to 1/4 inch.

11. Tape according to claim 10 wherein perforations in one row are staggered with respect to perforations in an adjacent row along said tape member.

12. Tape according to claim 8 wherein the perforations each have a size of about 1/8 of, the tape member being made of paper.

13. Tape according to claim 12 wherein the adhesive comprises pressure sensitive acrylic adhesive.

14. Tape according to claim 2 including a backing covering the layer of adhesive and removably attached by the adhesive to said tape member.

15. Tape according to claim 7 including a backing covering the layer of adhesive and removably attached by the adhesive to said tape member.

16. Tape according to claim 1 including a backing covering the layer of adhesive and removably attached by the adhesive to said tape member.