发明名称 |
Asphalt and rubber comprising composition |
摘要 |
A pipe coating composition is provided having good crack resistance properties that consists essentially of about 50 to 70 wt. % mineral aggregate, about 15 to 35 wt. % finely divided mineral filler, about 5 to 20 wt. % asphalt, about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, about 0 to 7 wt. % of an oil, and about 0 to 0.5 wt. % of a fibrous material. Further more, the crack resistance of a pipe coating composition is dramatically improved by using an asphalt rubber composition in which the rubber is an epoxy-coupled radial teleblock copolymer as compared to a silicon tetrahalide-coupled radial teleblock copolymer of essentially the same structure.
|
申请公布号 |
US4158371(A) |
申请公布日期 |
1979.06.19 |
申请号 |
US19770864124 |
申请日期 |
1977.12.23 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
REUSSER, ROBERT E.;GRAY, LEW T.;MARRS, OREN L. |
分类号 |
C09D195/00;F16L58/04;(IPC1-7):F16L9/14;B05D3/02 |
主分类号 |
C09D195/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|