Wallboard joint tape with fluorescent compound

Patent metadata

Field	Value
Publication number	US-10900237-B2
Application number	US-201715461232-A
Country	US
Kind code	B2
Filing date	Mar 16, 2017
Priority date	Mar 16, 2017
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

An identifiable wallboard joint tape is provided and includes a web of tape incorporated with an identifier such that the tape is visible under UV light and visually distinguishable from the surrounding wallboard joint and joint compound.

First claim

The invention claimed is:

1. An identifiable wallboard joint, comprising:
two wallboard panels having a wallboard joint therebetween;
an identifiable wallboard joint tape applied to the wallboard joint, wherein the identifiable wallboard joint tape comprises a web of liquid permeable paper wallboard joint tape integrally incorporated with an optical brightener, which is formed by applying an aqueous solution having the optical brightener in the range of 0.001 to 0.01 weight percent to the web of wallboard joint tape; and
a layer of joint compound covering the identifiable wallboard joint tape, wherein under standard lighting conditions, said optical brightener is invisible and wherein said identifiable wallboard joint tape is visible and visually distinguishable under UV light from the wallboard joint.

2. The identifiable wallboard joint of claim 1 , wherein said optical brightener is provided in an aqueous solution on an average of 0.005 weight percent, said solution being applied to said web of joint tape.

3. The identifiable wallboard joint of claim 1 , wherein said optical brightener has the formula C 28 H 20 S 2 O 6 Na 2 .

4. The identifiable wallboard joint of claim 1 , wherein said optical brightener is provided to said web of joint tape in an aqueous solution in a concentration equal to 0.0069 wt. %.

5. The identifiable wallboard joint of claim 1 , wherein said optical brightener is applied on said web of joint tape in a pattern.

6. An identifiable wallboard joint, comprising:
two wallboard panels having a wallboard joint therebetween;
an identifiable wallboard joint tape applied to the wallboard joint, wherein the identifiable wallboard joint tape comprises a web of liquid permeable paper wallboard joint tape incorporated with an optical brightener, which is formed by applying an aqueous solution having the optical brightener in a concentration of 0.005 weight percent to the web of wallboard joint tape, and wherein said brightener has the formula C 28 H 20 S 2 O 6 Na 2 ; and
a layer of joint compound covering the identifiable wallboard joint tape, wherein under standard lighting conditions, said optical brightener is invisible and wherein said identifiable wallboard joint tape is visible and visually distinguishable under UV light from the wallboard joint.

7. The identifiable wallboard joint of claim 6 , wherein said optical brightener is applied on said web of wallboard joint tape in a pattern.

8. An identifiable wallboard joint, comprising:
two wallboard panels having a wallboard joint therebetween:
an identifiable wallboard joint tape applied to the wallboard joint, wherein the identifiable wallboard joint tape comprises a web of liquid permeable paper wallboard joint tape integrally incorporated with an optical brightener, which is formed by applying an aqueous solution having the optical brightener in a concentration of 0.0069 weight percent to the web of wallboard joint tape, and wherein the applying is by embedding, coating, spraying, dipping, rolling, mist rolling, stamping, printing or otherwise surface treating said web of wallboard joint tape; and
a layer of joint compound covering the identifiable wallboard joint tape, wherein under standard lighting conditions, said optical brightener is invisible and wherein said identifiable wallboard joint tape is visible and visually distinguishable under UV light from the wallboard joint.

9. The identifiable wallboard joint of claim 8 , wherein said optical brightener is applied on said web of wallboard joint tape in a pattern.

Assignees

• United States Gypsum Co

Inventors

• Kincaid Tyler
• Pelot David D
• Immordino Jr Salvatore C

Classifications

• F21K2/00

  Non-electric light sources using luminescence (using excitation by radioactivity G21H3/02, H01J65/06, H01J65/08; using excitation by an external electromagnetic field or by external corpuscular radiation H01J65/04); Light sources using electrochemiluminescence · CPC title

• Y10T428/24802

  Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] · CPC title

• C08L2201/54

  Aqueous solutions or dispersions · CPC title

• D21H21/30

  Luminescent or fluorescent substances, e.g. for optical bleaching (D21H21/40 takes precedence) · CPC title

• E04F13/042 Primary

  Joint tapes · CPC title