Silicone mold and elastomer tool life
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United States of America Patent
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Aug 7, 1990
Grant Date -
N/A
app pub date -
Jun 19, 1989
filing date -
Jun 19, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Silicone elastomer molds or tools are used to shape amine containing resins. If the mold is coated with a silane of the formula R.sub.a SiX.sub.4-a, where R is a monovalent halogenated hydrocarbon having 1 through 6 carbon atoms and the halogen selected from the group consisting of chlorine, bromine, and iodine, X is a monovalent radical that reacts with a hydroxyl radical on silicon, and a is 1 through 3, before use, the shrinkage of the mold with repeated use is decreased and the elastomeric mold or tool life is greatly extended.
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