Prophylactic article

Abstract

The invention describes a multi-layered prophylactic article, in particular a medical glove, of at least one elastomeric base layer ( 1 ) and at least in some areas an anti-friction layer ( 2 ) with respectively one internal ( 3, 5 ) and one external surface ( 4, 6 ), whereby the external surface ( 4 ) of the anti-friction layer ( 2 ) is facing the internal surface ( 5 ) of the base layer ( 1 ) and microcapsules are contained in the anti-friction layer ( 2 ). At least 90% of the microcapsules ( 7 ) as singular capsules ( 8 ) have a diameter of less than 10 μm.

1 . Multi-layered prophylactic article, in particular a medical glove, of at least one elastomeric base layer and at least in some areas an anti-friction layer with respectively one internal and one external surface, whereby the external surface of the anti-friction layer is facing the internal surface of the base layer and microcapsules are contained in the anti-friction layer, characterized in that at least 90% of the microcapsules as singular capsules have a diameter of less than 10 μm.  
   
   
       2 . Prophylactic article according to  claim 1 , characterized in that the microcapsules as singular capsules have a diameter selected from a range with a lower limit of 0.1 μm, preferably 0.5 μm, in particular 1 μm, and an upper limit of 10 μm, preferably 9 μm, in particular 8 μm.  
   
   
       3 . Prophylactic article according to  claim 1 , characterized in that at least one active substance, in particular an antibacterial, antiviral, antiperspirant or spermicidal active substance, and/or a dye is contained in the microcapsules.  
   
   
       4 . Prophylactic article according to  claim 3 , characterized in that the active substance and/or dye is soluble at a temperature with an upper limit of 42° C., in particular 41° C., preferably 40° C., and a lower limit of 28° C., in particular 32° C., preferably 36° C.  
   
   
       5 . Prophylactic article according to  claim 1 , characterized in that the proportion of microcapsules in the anti-friction layer is less than 1% by weight.  
   
   
       6 . Prophylactic article according to  claim 5 , characterized in that the proportion of microcapsules in the anti-friction layer is selected from a range with a lower limit of 0.05% by weight, preferably 0.08% by weight, in particular 0.1% by weight, and an upper limit of 0.95% by weight, preferably 0.8% by weight, in particular 0.75% by weight.  
   
   
       7 . Prophylactic article according to, characterized in that the singular capsules are arranged as agglomerates.  
   
   
       8 . Prophylactic article according to  claim 7 , characterized in that a defined number of singular capsules with a lower limit of 100, in particular 200, preferably 500, and an upper level of 10,000, in particular 5,000, preferably 1,000, respectively form one agglomerate.  
   
   
       9 . Prophylactic article according to  claim 7 , characterized in that the agglomerates are shaped in an approximately spherical manner, optionally in a soccer ball-like manner.  
   
   
       10 . Prophylactic article according to  claim 7 , characterized in that the agglomerates are hollow.  
   
   
       11 . Prophylactic article according to  claim 7 , characterized in that several agglomerates are joined together.  
   
   
       12 . Prophylactic article according to  claim 7 , characterized in that the agglomerates have a size/diameter selected from a range with a lower limit of 5 μm, preferably 10 μm, in particular 15 μm, and an upper limit of 100 μm, preferably 80 μm, in particular 70 μm.  
   
   
       13 . Prophylactic article according to  claim 1 , characterized in that the diameter of the singular capsules and/or agglomerates is less than 50%, preferably 45%, in particular 40% of the thickness of the anti-friction layer.  
   
   
       14 . Prophylactic article according to  claim 1 , characterized in that the microcapsules and/or agglomerates are integrated into the internal surface and/or arranged directly adjacent to the internal surface of the anti-friction layer in the direction of the base layer.  
   
   
       15 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates have a coating.  
   
   
       16 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates are marked with a dye.  
   
   
       17 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates are water-insoluble.  
   
   
       18 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates are water-soluble.  
   
   
       19 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates are arranged at least in some areas in the region of the distal forearm, the wrist, the carpalia, the metacarpal bones and/or the base, middle and terminal phalanges of the fingers of a medical glove.  
   
   
       20 . Prophylactic article according to  claim 1 , characterized in that the singular capsules and/or agglomerates are arranged at least in some regions in both the palm and dorsal areas.  
   
   
       21 . Prophylactic article according to  claim 1 , characterized in that during use a change occurs in the surface structure of the anti-friction layer.  
   
   
       22 . Method for the production of a prophylactic article according to  claim 1 , characterized in that for the anti-friction layer at least 90% of the microcapsules are used as singular capsules with a diameter of less than 10 μm.  
   
   
       23 . Method according to  claim 22 , comprising the steps a) dipping a mold in a coagulant solution, b) surface drying, c) dipping in an elastomer mixture, d) surface drying, e) dipping in a composition with microcapsules ( 7 ) with a diameter of less than 10 μm, f) surface drying, g) leaching, h) drying, i) removal from the mold, j) washing, k) chloridizing and l) drying.  
   
   
       24 . Composition for the production of an anti-friction layer of a prophylactic article, in particular a glove, comprising a mixture of water, polyurethane and microcapsules, whereby 90% of the microcapsules have a diameter of less than 10 μm.  
   
   
       25 . Composition according to  claim 24 , characterized in that the concentration of the microcapsules is selected from a range with a lower limit of 0.01%, preferably 0.1%, in particular 0.5%, and an upper limit of 10%, preferably 5%, in particular 1%.  
   
   
       26 . Composition according to  claim 24 , characterized in that acrylate and/or carboxylated butadiene and/or silicone are contained.  
   
   
       27 . Composition according to  claim 26 , characterized in that the silicone has self-crosslinking properties.  
   
   
       28 . Composition according to  claim 24 , characterized in that the pH value is approximately neutral.  
   
   
       29 . Composition according to  claim 28 , characterized in that the pH value is selected from a range with a lower limit of 5.5, preferably 6, in particular 6.5, and an upper limit of 8, preferably 7.5, in particular 7.2.  
   
   
       30 . Use of the composition according to  claim 24  as an anti-friction layer for a prophylactic article, in particular a medical glove.