Bitumen/polymer composition vulcanizable at temperatures below 100.degree.C
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United States of America Patent
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May 12, 1998
Issued Date -
N/A
app pub date -
Mar 6, 1995
filing date -
Apr 23, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The bitumen/polymer composition comprises a bitumen, an elastomeric polymer vulcanisable with sulphur in an amount of 0.5 to 20% by weight of the bitumen, a sulphur-donating vulcanising agent, a vulcanisation accelerator and a viscosity-reducing agent chosen from water and hydrocarbon oils. The vulcanisation accelerator present in the composition consists of one or more vulcanisation accelerators active at temperatures below 100.degree. C., and the viscosity-reducing agent is used in an amount suitable for rendering the composition liquid at temperatures below 100.degree. C.
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