发明名称 |
Bituminous compositions modified with polyolefinic materials |
摘要 |
The present invention relates to bituminous compositions, particularly suitable for paving and building waterproofing, comprising a bitumen and a copolymer of ethylene with propylene and/or other alpha-olefins and optionally with smaller proportion of a diene or polyene. The copolymer is besides characterized by a very low crystallinity, intrinsic viscosity higher than 1.5 dl/g and by a content of propylene units or of the alpha-olefin in form of triads comprised between 4 and 50% of the propylene or of the alpha-olefin, with at least 70% of said triads having isotactic structure.
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申请公布号 |
US6284820(B1) |
申请公布日期 |
2001.09.04 |
申请号 |
US19970900035 |
申请日期 |
1997.07.24 |
申请人 |
MONTELL TECHNOLOGY COMPANY BV |
发明人 |
BRAGA VITTORIO;MARTINI EMILIO;GALIMBERTI MAURIZIO;ALBIZZATI ENRICO |
分类号 |
C08L23/08;C08L23/16;C08L89/00;C08L95/00;(IPC1-7):C08J95/00 |
主分类号 |
C08L23/08 |
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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