| 摘要 |
An article made of flexible rubber or plastic, at least part of the surface of which comes into contact with or is worn adjacent to human skin, such as a glove, a condom or the like, in which the said region of the surface is provided with a lubricant slip layer (9) of polymeric material (10) and at least part of the surface (51 - 54) exhibits a preferably regularly repeating pattern of protrusions (14) from the surface (12) such that the ratio of the spacing (15, 16) between the protrusions (14) to their depth (17) is between 100:1 to 5:1 and the mean depth of surface structuring is between 0.5-100 (1-40) mu m. Preferably the lubricant slip layer (9) is preferably applied to a carrier layer (4) which is formed e.g. from a pre-crosslinked natural rubber and/or NBR-latex product. The latex product contains a polymer (5) which is easily crosslinked or which is pre-crosslinked. The polymer (5) may contain strongly hydrophilic groups such as (meth)acrylic acid or (meth)acrylates, or the polymer (5) may comprise a mixture of monomer units including strongly hydrophilic or polar units such as vinyl pyrrolidone or vinyl alcohol together with hydrophobic or less water attractive units e.g. of styrene, butadiene, isoprene and/or acrylonitrile; alternatively the polymer (5) may be a polyurethane. The polymer (5) preferably exhibits high surface adhesion or is non-crosslinked. The carrier layer (4) may be formed from an aqueous solution containing a coagulant such as Ca nitrate, polyethylene glycol or a water soluble silicone and a pre-crosslinked natural latex mixture. |
