Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-07-06
1988-09-06
Ball, Michael
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156249, 156294, 604252, B44C 1165
Patent
active
047690992
ABSTRACT:
A method of making a tubular elastic sheath having an adhesive-coated inner surface and particularly suitable for use as an external male catheter in a urine-collection system. In such method, the sheath is supported upon a mandrel and a flexible laminated tape, composed of first and second adhesive layers separated by an elastomeric layer, is placed in adhesive contact with the inner surface of the sheath or, alternatively, with its outer surface. Thereafter, the cylindrical body of the sheath is rolled upon the mandrel so that the tape is interposed between successive turns of the sheath, with the first adhesive layer in engagement with the sheath's inner surface and the second adhesive layer of the tape in contact with the sheath's outer surface. The tape's elastomeric core layer has a greater affinity for the second adhesive layer than for the first adhesive layer, and the first adhesive layer has less affinity for the elastomeric layer than for the contiguous surface of the sheath, so that unrolling of the sheath during application results in a delamination of the tape with the first adhesive layer adhering to the sheath's inner surface for securing the sheath to the wearer and with the second adhesive layer, along with the elastomeric layer, remaining on the sheath's outer surface.
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Biersteker John S.
Lustig Lawrence J.
Olach Robert G.
Therriault Donald J.
Ball Michael
Herb David
Hollister Incorporated
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