Method for the production of cross-linked and/or functionalized bitumen/polymer compositions and use of said compositions in coverings
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United States of America Patent
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Feb 8, 2005
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N/A
app pub date -
Oct 1, 2002
filing date -
Jun 22, 1999
priority date (Note) -
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Abstract
Compositions produced by forming a homogenous mass consisting of a bitumen matrix wherein a cross-linked and/or functionalized elastomer produced in situ from a precursor elastomer is dispersed in a uniform manner and makes up 0.5-30% of the weight of the bitumen matrix. The bitumen matrix is created by associating 95%-20 wt. % non oxidized bitumen having a penetrability of 20-900 and 5-80 wt. % oxidized bitumen having a penetrability of 10-90. The compositions can be used as bitumen binders in the production of coverings.
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