Method of preventing adhesion of adhesive substance, and method of preventing adhesion of non-vulcanized rubber
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United States of America Patent
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Jun 3, 1997
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N/A
app pub date -
Jun 5, 1995
filing date -
May 11, 1990
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Abstract
Disclosed is a structure composed of a ragged base body with a ragged surface and a non-adhesive layer of a non-adhesive high polymer, in which the layer is fixed to at least the depressions of the ragged surface in such a way that the ragged profile of the body appears on the outer surface, reiterated by the layer. The ragged profile has a mean surface roughness Ra of 0.5 to 20 .mu.m and the mean distance Z between the adjacent projections forming the ragged profile is 20 to 1000 .mu.m. The non-adhesive high polymer may be a silicone high polymer having a silicone oil content of 10% or less. It has an effective surface tension of 32 dyn/cm or less. As the structure has improved releasing characteristics, adhesion of an adhesive substance to the structure may be effectively prevented without using any conventional releasing agent.
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