Powder free vinyl nitrile co-polymer gloves and process for preparing thereof

Abstract

The present invention discloses a glove as well as the manufacturing method for preparing thereof, the glove comprises a thin elastomeric film, the film comprising a co-polymer which is selected from a group consisting of polyvinyl chloride, oil-based liquid nitrile rubber (LNBR), pentanediol diisobutyrate (TXIB), di-isononyl phthalate and calcium zinc stabilizer. The glove prepared in such method inherited the characteristics of nitrile gloves but with a solid cost saving.

1 . A glove comprising a thin elastomeric film, said film comprising a co-polymer which is selected from a group consisting of polyvinyl chloride, oil-based liquid nitrile rubber (LNBR), pentanediol diisobutyrate (TXIB), di-isononyl phthalate and calcium zinc stabilizer.  
   
   
       2 . The glove, as recited in  claim 1 , wherein said co-polymer is prepared of 43.2% polyvinyl chloride by weight, 13% oil-based liquid nitrile rubber (LNBR) by weight, 13% pentanediol diisobutyrate (TXIB) by weight, 30.2% di-isononyl phthalate by weight, and 0.6% calcium zinc stabilizer by weight.  
   
   
       3 . The glove, as recited in  claim 1 , further comprising a polyurethane coating so as to replace a need for any donning powder.  
   
   
       4 . The glove, as recited in  claim 2 , further comprising a polyurethane coating so as to replace a need for any donning powder.  
   
   
       5 . A method for preparing a vinyl nitrile co-polymer powder free exam glove, comprising the following steps: 
 (a). mixing polyvinyl chloride, oil-based liquid nitrile rubber, pentanediol diisobutyrate, di-isononyl phthalate and a calcium zinc stabilizer according to a predetermined formula to generate a polyvinyl mixture;    (b). dipping said polyvinyl mixture into a former to form a glove;    (c) heating said glove at a predetermined temperature for a time of period; and    (d). cooling said glove for a predetermined time of period at a temperature 75° C.;    
   
   
       6 . The method, as recited in  claim 5 , further comprising a step (e) for dipping the glove into a hot polyurethane mixture so as to coat said glove and replace a need for any donning powder thus eliminating a glove sticking problem.  
   
   
       7 . The method, as recited in  claim 5 , further comprising a step (f) for stripping said glove from said form.  
   
   
       8 . The method, as recited in  claim 6 , further comprising a step (f) for stripping said glove from said form.  
   
   
       9 . The method, as recited in  claim 5 , wherein said polyvinyl mixture is prepared of 43.2% polyvinyl chloride by weight, 13% oil-based liquid nitrile rubber (LNBR) by weight, 13% pentanediol diisobutyrate (TXIB) by weight, 30.2% di-isononyl phthalate by weight, and 0.6% calcium zinc stabilizer by weight.  
   
   
       10 . The method, as recited in  claim 6 , wherein said polyvinyl mixture is prepared of 43.2% polyvinyl chloride by weight, 13% oil-based liquid nitrile rubber (LNBR) by weight, 13% pentanediol diisobutyrate (TXIB) by weight, 30.2% di-isononyl phthalate by weight, and 0.6% calcium zinc stabilizer by weight.  
   
   
       11 . The method, as recited in  claim 5 , wherein said predetermined temperature is 205° C.  
   
   
       12 . The method, as recited in  claim 6 , wherein said predetermined temperature is 205° C.  
   
   
       13 . The method, as recited in  claim 5 , wherein said predetermined time of period is 5 to 6 minutes.  
   
   
       14 . The method, as recited in  claim 5 , wherein said predetermined time of period is 5 to 6 minutes.  
   
   
       15 . A glove, which is prepared by a method having the following steps: 
 a. mixing polyvinyl chloride, oil-based liquid nitrile rubber, pentanediol diisobutyrate, di-isononyl phthalate and a calcium zinc stabilizer according to a predetermined formula to generate a polyvinyl mixture;    b. dipping the polyvinyl mixture into a former to form a glove;    c. heating the glove at a predetermined temperature for a time of period; and    d. cooling the glove for a predetermined time of period at a temperature 75° C.;    
   
   
       16 . The glove, as recited in  claim 15 , wherein said method further comprises a step (e) for dipping the glove into a hot polyurethane mixture so as to coat said glove and replace a need for any donning powder thus eliminating a glove sticking problem.  
   
   
       17 . The glove, as recited in  claim 15 , wherein said polyvinyl mixture is prepared of 43.2% polyvinyl chloride by weight, 13% oil-based liquid nitrile rubber (LNBR) by weight, 13% pentanediol diisobutyrate (TXIB) by weight, 30.2% di-isononyl phthalate by weight, and 0.6% calcium zinc stabilizer by weight.  
   
   
       18 . The glove, as recited in  claim 16 , wherein said polyvinyl mixture is prepared of 43.2% polyvinyl chloride by weight, 13% oil-based liquid nitrile rubber (LNBR) by weight, 13% pentanediol diisobutyrate (TXIB) by weight, 30.2% di-isononyl phthalate by weight, and 0.6% calcium zinc stabilizer by weight.  
   
   
       19 . The glove, as recited in  claim 15 , wherein said method further comprises a step (f) for stripping said glove from said form.  
   
   
       20 . The glove, as recited in  claim 16 , wherein said method further comprises a step (f) for stripping said glove from said form.