Water vapor absorbing and transmitting sheet material of rubber containing a swellable cross-linked cellulose ether or starch ether and a process for the manufacture thereof
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United States of America Patent
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Apr 8, 1980
Grant Date -
N/A
app pub date -
Aug 10, 1978
filing date -
Aug 11, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to an improvement in a sheet material comprising natural or synthetic rubber or a rubber-like polymer, which is capable of absorbing and transmitting water vapor and which contains a uniformly incorporated addition of polymer particles, the improvement that the addition comprises particles of at least one swellable modified polymer. The invention also relates to a process for the manufacture of the sheet material.
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