Method for forming a boss upon a thermoplastic polymer surface and resulting article
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United States of America Patent
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-
Oct 12, 1982
Grant Date -
N/A
app pub date -
Dec 24, 1980
filing date -
Dec 24, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An article comprising a thermoplastic polymer having an essentially planar surface provided with a surface pattern defined and encompassed by at least one continuous self-connecting retaining dam; at least a portion of the dam comprising at least one debossed region between at least two essentially parallel raised ridges; a further article comprising the foregoing article having a boss formed from a hardened resin over the surface pattern to a depth at least equal to the height of the highest of the raised ridges; and a method for manufacturing the articles by heating the surface to a temperature above the deformation temperature of the polymer and impressing the surface with a debossing die to form the portion of the article having the debossed region and raised ridges and introducing a liquid resin into the surface pattern followed by solidifying the resin to form the article having the boss.
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