Joint strip consisting of glass fibres

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.

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.