Making shrink-fit objects
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United States of America Patent
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-
Dec 28, 1982
Grant Date -
N/A
app pub date -
Oct 3, 1980
filing date -
Oct 8, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Silane is grafted upon polymer molecules and the material is shaped (e.g., extruded or injection-molded) and caused to cross-link. Both steps must be completed before expanding (following reheating, if necessary) and cooling the object at the expanded state. Cap- and sleeve-making is disclosed, including internal as well as external exposure to water for cross-linking, possibly combined with the requisite preheating for the expansion.
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