Glove having butyl rubber layer to provide resistance to ketone family chemicals

Abstract

A laminate of three layers includes a middle butyl rubber layer, whereas the inner layer and outer layer materials could be chosen from natural rubber latex, carboxylated acrylonitrile butadiene rubber latex, polychloroprene, polyisoprene, carboxylated styrene butadiene, and other synthetic elastomers. Even with one material used for both inner layer and outer layer, different formulations could be used. The resultant multilayer structure provides good resistance to ketone family chemicals such as acetone and MEK. The glove also exhibits superior or much improved resistance to solvent such as DMSO, chloroform, methanol, et al as compared to currently commercially available thin wall gloves made from natural rubber latex and carboxylated acrylonitrile butadiene synthetic rubber latex. The time elapsed before the material experiences breakthrough after exposure to a ketone family solvent is directly related to the thickness of the butyl layer.

1 . A glove, comprising 
 a first layer of nitrile rubber,    a second layer of butyl rubber, and    a third layer of nitrile rubber.    
   
   
       2 . The glove of  claim 1 , wherein 
 said first layer is an inner layer,    said second layer is a middle layer and    said third layer is an outer layer.    
   
   
       3 . A method of forming a glove comprising 
 dipping a form into nitrile rubber to form a first layer,    dipping the form into butyl rubber to form a second layer, and    dipping said form into nitrile rubber to form a third layer.    
   
   
       4 . The method of  claim 3 , wherein 
 said nitrile rubber and butyl rubber are stored in vats.    
   
   
       5 . The method of  claim 3 , wherein 
 said form is dipped into a first vat having nitrile rubber, then    said form is dipped into a second vat having butyl rubber, then    said form is dipped into a third vat having nitrile rubber.    
   
   
       6 . The method of  claim 3 , wherein 
 said form is dipped into a first vat having nitrile rubber, then    said form is dipped into a second vat having butyl rubber, then    said form is dipped into said first vat.