Process for improving adhesion of rubbery polymers by reacting with silanes in two stages
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United States of America Patent
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Jul 31, 1984
Grant Date -
N/A
app pub date -
Nov 23, 1981
filing date -
Nov 25, 1980
priority date (Note) -
Expired
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Abstract
Rubbery polymer compositions, e.g. based on chlorobutyl rubber, having improved adhesion to mineral substrates such as glass or metal, are produced by a stepwise reaction sequence. In a first stage the rubbery polymer is reacted with a reactive silane such as an amino trialkoxy silane, in a second stage the product is mixed with an epoxy resin, and in a third stage a further amount of reactive silane is reacted with the epoxy containing compound.
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