Vibration damping material of asphalt cement
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United States of America Patent
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Jun 28, 1994
Issued Date -
N/A
app pub date -
Nov 30, 1992
filing date -
Aug 11, 1988
priority date (Note) -
Expired
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Abstract
A vibration damping material of asphalt cement comprising a) 60-90 parts by weight of asphalt cement: b) 10-30 parts by weight of thermoplastic rubber: and c) 0-20 parts by weight of tacky producer. A total sum of weight of a), b) and c) is 100 parts by weight. A penetration of the vibration damping material falls in a range of 35 to 140.
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