发明名称 |
Antistrip latex for aggregate treatment |
摘要 |
The subject invention relates to a process for coating aggregate which is particularly useful in making asphalt concrete to provide the aggregate with a high level of resistance to stripping by water, which comprises: (1) mixing the aggregate with latex to form a latex/aggregate mixture, wherein said latex is comprised of water, an emulsifier, a polymer and a water-soluble divalent metal salt; (2) heating the latex/aggregate mixture to a temperature which is within the range of about 66° C. to about 232° C.; (3) maintaining the latex/aggregate mixture at said elevated temperature for a time which is sufficient to reduce the moisture content of the latex/aggregate mixture below about 0.7 weight percent and to allow the polymer in the latex to crosslink on the surface of the aggregate to produce the coated aggregate.
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申请公布号 |
US6403687(B1) |
申请公布日期 |
2002.06.11 |
申请号 |
US20000478608 |
申请日期 |
2000.01.06 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
SCHULZ GERALD OWEN;BETHEL ALAN LEE |
分类号 |
C04B20/10;C04B26/26;C08K3/24;C08L95/00;(IPC1-7):C08K3/10 |
主分类号 |
C04B20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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