Bituminous compositions for soundproofing materials
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United States of America Patent
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Feb 11, 1997
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N/A
app pub date -
Jul 29, 1994
filing date -
Jul 29, 1993
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Abstract
The present invention relates to bituminous compositions comprising oxidized bitumen and styrene-conjugated diene block copolymers for the manufacture of soundproofing materials. The use of said materials for the automotive soundproofing is also concerned.
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