发明授权
- 专利标题： Asphalt compositions
- 专利标题（中）： 沥青组合物
-
申请号： US708803申请日： 1976-07-26
-
公开(公告)号： US4052290A公开(公告)日： 1977-10-04
- 发明人: Donald R. Cushman , Charles A. Pagen , John W. Schick , Tsoung-Yuan Yan
- 申请人： Donald R. Cushman , Charles A. Pagen , John W. Schick , Tsoung-Yuan Yan
- 申请人地址： NY New York
- 专利权人： Mobil Oil Corporation
- 当前专利权人： Mobil Oil Corporation
- 当前专利权人地址： NY New York
- 主分类号： C10C3/04
- IPC分类号： C10C3/04 ; C10G3/00
摘要：
Improved asphalt compositions are provided which are produced by forming a homogeneous blend of marginal asphalt stock with coal-derived asphaltenes, and air-blowing the homogeneous blend to yield an asphalt composition having a viscosity-penetration index higher than about 2.5 .times. 10.sup.5.
公开/授权文献
- US5725957A Transparent substrate with diffuser surface 公开/授权日：1998-03-10
信息查询
