Disposable gloves

Abstract

A disposable glove for a hand of a human wearer that comprises polyvinyl chloride (PVC) and is substantially impermeable to liquid water. The glove provides an elastic material with superior restore rate and elasticity parameters, while maintaining good tensile strength.

1 . An article of manufacture comprising:
 a glove including polyvinyl chloride, the glove comprising,
 a hand area having at least a portion of the hand area having a thickness from about 0.08 mm to about 0.12 mm, and 
 a wrist area; 
   wherein the glove has a tensile strength before aging of at least about 14 Mpa as measured in accordance with ASTM D 412-98a on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm, and a modulus of elasticity of less than about 2.5 Mpa as measured in accordance with ASTM D 412-98a on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm, and wherein the material forming the glove is substantially impermeable to liquid water.   
   
   
       2 . The article of  claim 1  wherein the glove further includes a plasticizer. 
   
   
       3 . The article of  claim 2  wherein the plasticizer is diisononyl phthalate. 
   
   
       4 . The article of  claim 1  wherein the glove further includes a plasticizer and an elastomer. 
   
   
       5 . The article of  claim 1  wherein the glove has an elongation of break of greater than about 500% as measured in accordance with ASTM D 412-98a on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm. 
   
   
       6 . The article of  claim 5  wherein the glove further includes a plasticizer. 
   
   
       7 . An article of manufacture comprising:
 a glove including polyvinyl chloride, the glove comprising,
 a hand area having at least a portion of the hand area having a thickness from about 0.08 mm to about 0.12 mm, and 
 a wrist area; 
   wherein the glove has a durometer hardness reading less than about 53 on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm, and a compressive strength of less than about 215 Mpa at 0.100 inch deflection on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm, and wherein the material forming the glove is substantially impermeable to liquid water.   
   
   
       8 . The article of  claim 7  wherein the glove includes a plasticizer. 
   
   
       9 . The article of  claim 7  wherein the glove has a tensile strength before aging of at least about 14 Mpa as measured in accordance with ASTM D 412-98a on a glove sample having a thickness at the hand area of from about 0.08 mm to about 0.12 mm. 
   
   
       10 . A disposable glove comprising a first polyvinyl chloride resin having a degree of polymerization of from about 1,400 to about 1,700 as measured in accordance with JIS K 6721-77 and a viscosity of from about 3,000 to 4,000 cps as determined by ASTM D 1824-90, a second polyvinyl chloride resin having a degree of polymerization of from about 1,800 to about 2,200 as measured in accordance with JIS K 6721-77, a plasticizer and an elastomer, wherein the glove comprises a ratio of the first polyvinyl chloride resin to the second polyvinyl chloride resin of from about 0.40 to about 0.75. 
   
   
       11 . The glove of  claim 10  further comprising a viscosity reducer and a stabilizing agent. 
   
   
       12 . The glove of  claim 10  wherein the second polyvinyl chloride resin has a K-value from about 78 to about 82 as determined by DIN 53726. 
   
   
       13 . The glove of  claim 10  wherein the glove comprises a ratio of the first polyvinyl chloride resin to the second polyvinyl chloride resin of from about 0.55 to about 0.65. 
   
   
       14 . The glove of  claim 10  wherein the second polyvinyl chloride resin has a degree of polymerization of from about 1,900 to about 2,100 as measured in accordance with JIS K 6721-77. 
   
   
       15 . A method of forming a disposable glove comprising the acts of:
 providing a first polyvinyl chloride resin having a degree of polymerization of from about 1,400 to about 1,700 as measured in accordance with JIS K 6721-77, a second polyvinyl chloride resin having a degree of polymerization of from about 1,800 to about 2,200 as measured in accordance with JIS K 6721-77, a plasticizer and an elastomer, the ratio of the first polyvinyl chloride resin to the second polyvinyl chloride resin being from about 0.40 to about 0.75;   mixing the first polyvinyl chloride resin, the second polyvinyl chloride resin, the plasticizer and the elastomer to form a mixture;   dipping the mixture onto a glove-forming surface; and   drying the mixture to form the glove.   
   
   
       16 . The method of  claim 15  further including heating the mixture after the mixture is dipped. 
   
   
       17 . The method of  claim 15  further including providing a viscosity reducer and a stabilizing agent, mixing the viscosity reducer, the stabilizing agent, the first polyvinyl chloride resin, the second polyvinyl chloride resin, the plasticizer and the elastomer to form the mixture.