JOINT STRIP CONSISTING OF GLASS FIBRES

• US 20150204077A1
• Filed: 07/16/2013
• Published: 07/23/2015
• Est. Priority Date: 07/17/2012
• Status: Abandoned Application

• Current Assignee: Saint-Gobain Adfors
• Original Assignee: Saint-Gobain Adfors
• Inventors: Mikulecky, Bohuslav, Mraz, Jan
• Application Number:
  US14/415,036
• Publication Number:
  US 20150204077A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: D03D 1/00 Woven fabrics designed to make specified articles
• CPC Class Codes: D03D 15/267 Glass
• CPC Class Codes: D03D 15/43 with differing diameters
• CPC Class Codes: D03D 3/005 Tapes or ribbons not otherwise provided for D03D1/0005, D03D1/0011, D03D1/06, D03D1/08, D03D1/0094 take precedence
• CPC Class Codes: D03D 9/00 Open-work fabrics
• CPC Class Codes: D04B 21/10 Open-work fabrics
• CPC Class Codes: D10B 2101/06 Glass
• CPC Class Codes: D10B 2505/00 Industrial
• CPC Class Codes: E04F 13/042 Joint tapes
• CPC Class Codes: Y10T 442/10 Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
• CPC Class Codes: Y10T 442/2738 Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith
• CPC Class Codes: Y10T 442/30 Woven fabric [i.e., woven strand or strip material]
• CPC Class Codes: Y10T 442/3049 Including strand precoated with other than free metal or alloy
• CPC Class Codes: Y10T 442/40 Knit fabric [i.e., knit strand or strip material]
• CPC Class Codes: Y10T 442/419 Including strand precoated with other than free metal or alloy

Abstract

The invention relates to a joint tape, in strip form, formed by an open-mesh glass fiber warp knit fabric or woven fabric, said warp knit fabric or woven fabric comprising fibers parallel to the length of the strip and fibers perpendicular to the length of the strip, said tape being characterized in that at least one glass fiber, referred to as reinforcing fiber, parallel to the length of the strip and located in the central zone thereof, has a linear density at least five times higher than the linear density of the other fibers.

Claims

1. A joint tape, in strip form, comprising an open-mesh glass fiber warp knit fabric or woven fabric, wherein the warp knit fabric or woven fabric comprises

a glass fiber parallel to the length of the strip, referred to as a longitudinal fiber,

a glass fiber perpendicular to the length of the strip, referred to as a transverse fiber, and

a longitudinal fiber located in a central zone of the strip, referred to as a reinforcing fiber,

wherein the reinforcing fiber, has a linear density at least two times higher than the linear density of the other longitudinal fibers.

2. The joint tape as claimed in claim 1, wherein the tape comprises a single reinforcing fiber.

3. The joint tape as claimed in claim 1, wherein the tape comprises two reinforcing fibers.

4. The joint tape as claimed in claim 1, which has a width of between 30 mm and 80 mm.

5. The joint tape as claimed in claim 1, wherein the reinforcing fiber has a linear density of between 30 and 300 dtex.

6. The joint tape as claimed in claim 1, wherein the longitudinal and transverse glass fibers have a linear density of between 20 and 120 dtex.

7. The joint tape as claimed in claim 1, wherein the open-mesh has an equivalent diameter of between 2 mm and 7 mm.

8. The joint tape as claimed in claim 1, further comprising, on one of its faces, a self-adhesive coating.

9. The joint tape as claimed in claim 1, wherein all the glass fibers are coated with an elastomer coating.

10. A process for jointing two flat construction elements forming, with respect to one another, an angle of less than 180°

, the process comprising

applying the joint tape as claimed in claim 1 to the two flat construction elements, and

overlapping both construction elements so that the reinforcing fiber is superposed on a join line between the two construction elements.