Glove having high mechanical performance, with high resistance to chemical products and/or radiolysis, and method for making same

Abstract

The invention concerns a glove having high mechanical performance, and high resistance to chemical products and/or radiolysis, characterised in that it comprises one or several elastomer layers, identical or different, obtained from solutions of said elastomers in one or several organic solvents or in water, said layers being reinforced, on one or several parts or on the entire internal surface of the glove, with a fabric with high mechanical strength. The invention also concerns a method for making said glove and its uses.

1 . A glove exhibiting high mechanical performance together with high chemical and/or radiolytic resistance, characterized in that it comprises: 
 one or more layers of elastomers, which are identical or different, obtained from solutions of said elastomers in one or more organic solvents or in water,    these layers being reinforced, over one or more parts or over all of the internal surface of the glove, by a high-strength fabric.    
     
     
         2 . The glove as claimed in  claim 1 , characterized in that the elastomer or elastomers are in the form of a solution in one or more organic solvents or in water, present as single continuous phase.  
     
     
         3 . The glove as claimed in  claim 1  or  claim 2 , characterized in that it includes, on that surface of the glove which is intended to come into contact with the user's hand, a high-strength fabric.  
     
     
         4 . The glove as claimed in any one of  claims 1  to  3 , characterized in that said high-strength fabric consists of woven or knitted, natural or synthetic fibers selected from fibers of high-tenacity polyethylene, high-tenacity polyester, polyaramid, polyamide, viscose and blends thereof.  
     
     
         5 . The glove as claimed in any one of  claims 1  to  4 , characterized in that said elastomers are selected from the group formed by polyurethanes, chlorosulfonated polyethylenes, polychloroprenes, butyl rubbers, synthetic or natural polyisoprenes, polyvinyl alcohols and blends thereof.  
     
     
         6 . The glove as claimed in any one of the preceding  claims 1  to  5 , characterized in that it comprises: 
 one or more layers of polyurethane, obtained from a solution of said polyurethane in one or more organic solvents,  
 these layers being reinforced, over one or more parts or over all of the internal surface of the glove, by a high-strength fabric.  
 
     
     
         7 . The glove as claimed in any one of the preceding  claims 1  to  6 , characterized in that the total thickness of the elastomer layers is between 0.3 and 1 mm.  
     
     
         8 . The glove as claimed in any one of the preceding  claims 1  to  7 , characterized in that it has a puncture strength of at least 150 N.  
     
     
         9 . The glove as claimed in any one of the preceding  claims 1  to  8 , characterized in that it has a trouser tear strength of at least 75 N.  
     
     
         10 . A process for manufacturing the glove as defined in any one of the preceding  claims 1  to  9 , characterized in that it comprises the following steps: 
 a) dipping of a mold, at least once, into one or more identical or different solutions of one or more elastomers in one or more organic solvents or in water;  
 b) application, to one or more parts or to all of the surface of said elastomer layers, as obtained from the previous step, of a high-strength fabric layer and then  
 c) removal of the glove by turning it inside out.  
 
     
     
         11 . The process as claimed in  claim 10 , characterized in that no adhesive-type product is involved in fastening the fabric to the elastomer.  
     
     
         12 . The process as claimed in  claim 10  or  claim 11 , characterized in that it includes, prior to step b), a step a′) of drying each elastomer layer obtained on said mold during step a).  
     
     
         13 . The process as claimed in any one of  claims 10  to  12 , characterized in that said high-strength fabric layer applied during step b) is pre-impregnated with water optionally containing a nonionic surfactant, or with at least one solvent for the elastomer that is directly in contact with said fabric layer.  
     
     
         14 . The process as claimed in any one of  claims 10  to  13 , characterized in that it includes, between steps b) and c), a step b′) of impregnating the high-strength fabric layer with at least one solvent for the elastomer that is directly in contact with said fabric layer.  
     
     
         15 . The process as claimed in any one of  claims 10  to  14 , characterized in that it includes, immediately before step c) of removing the glove by turning it inside out, a step of drying the mold/elastomer/high-strength fabric assembly.  
     
     
         16 . The process as claimed in any one of  claims 10  to  15 , characterized in that said elastomers are selected from the group formed by polyurethanes, chlorosulfonated polyethylenes, polychloroprenes, butyl rubbers, synthetic or natural polyisoprenes, polyvinyl alcohols and blends thereof.  
     
     
         17 . The use of the glove as claimed in any one of  claims 1  to  9  for handling radioactive materials.  
     
     
         18 . The use of the glove as claimed in any one of  claims 1  to  9  for handling dangerous chemicals, such as corrosive chemicals, or biological material.  
     
     
         19 . A glove box, characterized in that it comprises at least one glove as defined in any one of  claims 1  to  9 .