Nova Patents
EP0906731A2

Powder-free medical glove and manufacture thereof

Abstract

A powder free medical glove having an outer side a silicon created surface and the inside of cross linked coagulated glove bonded with a layer formed of an anti-blocking composition. The anti-blocking composition comprises of a polymer or copolymer mixed together with a micronised high density polyethylene material and wax in suitable blends that result in the composition having anti-blocking and improved lubricity properties. The medical glove with the skin contacting anti-blocking coating enables donning of the glove to be effected without the aid of donning powder such as starch powder. When the finished glove is washed and rinsed with water to remove the coagulant powder, and the said glove treated with a silicon solution, a glove substantially free of loose powder glove is produced and has good lubricity for donning.

EP0906731A2, drawing sheet 1
Sheet 1 of 1

Term

Term ended

Projected expiry passed 30 September 2018, 8 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

13 claims: 3 independent, 10 dependent

  1. 1
    A powder-free medical glove produced from natural or synthetic polymer comprises an outer side a silicone-treated surface and the inside of glove bonded with a layer formed of an anti-blocking composition of a polymer/co-polymer, a high density polyethylene particle and a wax.
  2. 8
    A process for making a powder-free medical glove according to anyone of claims 1 to 7 comprises the steps of, (i) forming the glove by dip-coating a first layer onto a glove form into a solution comprising a coagulant and glove-release powders;(ii) forming a second layer over the first layer by dip-coating the glove form into an elastomer;(iii) forming a third layer over the second layer by dip-coating over the elastomer layer an antiblocking solution comprising a polymer/co-polymer, a high density polyethylene particle and a wax;(iv) dip-coating a silicone emulsion over the underlying layers;(v) subjecting the formed layers to heat to crosslink the elastomer and to bond the elastomer layer to the antiblocking layer;(vi) removing the finished glove from the form and reversing the same so that the first layer becomes the outer side of the glove whereas the silicone-treated underlying layers become the inner side of the glove;(vii) washing and rinsing the finished glove;(viii) treating the finished glove with a silicone emulsion/wax mixture;and (ix) drying the glove.
  3. 13
    A method of anyone of claims claim 8-13, wherein the micronised high density polyethylene has a particle size of 2-12 microns and melting point of between 118°C-137°C.
Independent claims3