A corner bead and a method for manufacturing a corner bead

Abstract

Disclosed is a corner bead for mounting on an internal or external corner of a building construction, the corner bead including a first flange and a second flange which are configured with a longitudinal extension and a generally L-shaped cross-section. Furthermore, the first flange has a first surface intended for facing the building construction and the second flange has a second surface also intended for facing the building construction, wherein at least one of the first surface and the second surface is at least partially coated with an adhesive element. Also disclosed is a method for manufacturing an absorbent article of the above-mentioned type.

1 . A corner bead ( 5 ) for mounting on an internal or external corner of a building construction ( 1 ), said corner bead ( 5 ) comprising a first flange ( 6 ) and a second flange ( 7 ) which are configured with a longitudinal extension and a generally L-shaped cross-section, wherein said first flange ( 6 ) has a first surface ( 8 ) intended for facing said building construction and said second flange ( 7 ) has a second surface ( 9 ) also intended for facing said building construction, wherein at least one of said first surface ( 8 ) and said second surface ( 9 ) is at least partially coated with an adhesive element ( 10 ). 
     
     
         2 . The corner bead ( 5 ) according to  claim 1 , wherein said adhesive element is in the form of an adhesive ( 10 ) which is applied on a protective layer ( 11 ), which in turn is applied on said at least one of said first surface ( 8 ) and said second surface ( 9 ) which is thereby coated with said hot melt adhesive ( 10 ). 
     
     
         3 . The corner bead ( 5 ) according to  claim 2 , wherein said protective layer ( 11 ) is constituted by a siliconized paper strip. 
     
     
         4 . The corner bead ( 5 ) according to  claim 2 , wherein the surface or surfaces which are coated with said hot melt adhesive ( 10 ) are positioned so as to define a further surface ( 12 ) which is free from said hot melt adhesive ( 10 ), and that said protective layer ( 11 ) extends generally across the combined width of the hot melt adhesive ( 10 ) and said further surface ( 12 ). 
     
     
         5 . The corner bead ( 5 ) according to  claim 2 , wherein said hot melt adhesive ( 10 ) comprises ethylene-vinyl acetate (EVA), resin and wax. 
     
     
         6 . The corner bead ( 5 ) according to  claim 1 , wherein said first flange ( 6 ) and said second flange ( 7 ) are arranged with an angle in relation to each other which is between 85° and 95°. 
     
     
         7 . The corner bead ( 5 ) according to  claim 1 , wherein said corner bead ( 5 ) is provided with a slightly rounded corner nose ( 13 ) located where the first flange ( 6 ) and the second flange ( 7 ) meet, and extending generally along the entire length of the corner bead ( 5 ). 
     
     
         8 . The corner bead ( 5 ) according to  claim 1 , wherein said first flange ( 6 ) has a third surface ( 14 ) which is not facing said building construction ( 1 ) and said second flange ( 7 ) has a fourth surface ( 15 ) which is not facing said building construction ( 1 ), wherein at least one of said third surface ( 14 ) and said fourth surface ( 15 ) is covered with an absorbing surface layer ( 16 ) which is configured for absorbing compound during attachment of the corner bead ( 5 ) to the building construction ( 1 ). 
     
     
         9 . The corner bead ( 5 ) according to  claim 1 , wherein at least one of said first flange ( 6 ) and said second flange ( 7 ) is provided with a pattern of perforations ( 17 ) extending generally along the longitudinal direction of said flange or flanges. 
     
     
         10 . The corner bead ( 5 ) according to  claim 1 , said corner bead ( 5 ) being manufactured at least partly from a biodegradable plastic material. 
     
     
         11 . The corner bead ( 5 ) according to  claim 2 , wherein the adhesive ( 10 ) is a hot melt adhesive. 
     
     
         12 . Method for manufacturing a corner bead ( 5 ) configured for mounting on an internal or external corner ( 4 ) of a building construction ( 1 ), comprising:
 providing a first flange ( 6 ) and a second flange ( 7 ); and   arranging the first flange ( 6 ) and the second flange ( 7 ) in a configuration having a longitudinal extension and with a generally L-shaped cross-section,   wherin the method further comprises:   forming said first flange ( 6 ) with a first surface ( 8 ) which is configured for facing said building construction ( 1 );   forming said second flange ( 7 ) with a second surface ( 9 ) which is also configured for facing said building construction ( 1 ); and   coating at least one of said first surface ( 8 ) and said second surface ( 9 ) at least partially with an adhesive element ( 10 ).   
     
     
         13 . The method according to  claim 12 , said method further comprising:
 applying said adhesive element in the form of an adhesive ( 10 ) on a protective layer ( 11 );   applying said protective layer ( 11 ) on said at least one of said first surface ( 8 ) and said second surface ( 9 ) which is thereby coated with said hot melt adhesive ( 10 ).   
     
     
         14 . The method according to  claim 13 , said method further comprising:
 positioning the surface or surfaces ( 8 ;  9 ) which are coated with said hot melt adhesive ( 10 ) along a further surface ( 12 ) which is free from said hot melt adhesive ( 10 ); and   arranging said protective layer ( 11 ) generally across the combined width of the hot melt adhesive ( 10 ) and said further surface ( 12 ).   
     
     
         15 . The method according to  claim 13 , said method further comprising:
 pre-manufacturing said protective layer ( 11 ) before said step of applying said protective layer ( 11 ) on a corner bead ( 5 ) or a corner bead material ( 21 ).   
     
     
         16 - 22 . (canceled) 
     
     
         23 . The method according to  claim 12 , said method further comprising:
 arranging said first flange ( 2 ) and said second flange ( 3 ) with an angle in relation to each other which is between 85° and 95°.   
     
     
         24 . The method according to  claim 12 , said method further comprising:
 providing a third surface ( 14 ) on said first flange ( 6 ) which is not facing said building construction ( 1 );   providing a fourth surface ( 15 ) on said second flange ( 7 ) which is not facing said building construction ( 1 ); and   covering at least one of said third surface ( 14 ) and said fourth surface ( 15 ) with an absorbing surface layer ( 16 ) which is configured for absorbing compound.   
     
     
         25 . The method according to  claim 12 , said method further comprising:
 providing a pattern of perforations ( 17 ) on at least one of said first flange ( 6 ) and said second flange ( 7 ), said perforations ( 17 ) extending generally along the longitudinal direction of said flange or flanges ( 6 ;  7 ).   
     
     
         26 . The method according to  claim 12 , said method further comprising:
 manufacturing said corner bead ( 5 ) at least partly from a biodegradable plastic material.   
     
     
         27 . The method according to  claim 12 , said method further comprising:
 applying said adhesive element in the form of a hot melt adhesive ( 10 ) on the protective layer ( 11 ).   
     
     
         28 . The method according to  claim 12 , said method further comprising:
 perforating said corner bead ( 5 ) after said protective layer ( 11 ) has been applied on the corner bead ( 5 ).   
     
     
         29 . System for manufacturing a corner bead ( 5 ) which is configured for mounting on an internal or external corner ( 4 ) of a building construction ( 1 ), comprising an extruder unit ( 20 ) for providing a corner bead material ( 21 ) with a first flange ( 6 ) and a second flange ( 7 ) and being configured for arranging the first flange ( 6 ) and the second flange ( 7 ) in a configuration having a longitudinal extension and with a generally L-shaped cross-section, wherein the extruder unit ( 20 ) is configured for forming said first flange ( 6 ) with a first surface ( 8 ) which is configured for facing said building construction ( 1 ), and forming said second flange ( 7 ) with a second surface ( 9 ) which is also configured for facing said building construction ( 1 ); and that the system further comprises a unit ( 24 ) for coating at least one of said first surface ( 8 ) and said second surface ( 9 ) at least partially with an adhesive element ( 10 ). 
     
     
         30 . The System according to  claim 29 , further comprising a separate unit ( 25 ) for preparing a protective layer ( 11 ) on which said adhesive element ( 10 ) is applied, wherein said protective layer ( 11 ) is subsequently applied on said corner bead material ( 21 ).