| 发明名称 |
Ethylene-Propylene Copolymeric Compositions With Long Methylene Sequence Lengths |
| 摘要 |
This invention relates to methods to prepare and compositions pertaining to branched ethylene-propylene copolymers that include at least 50% ethylene content by weight as determined by FTIR; a g′vis of less than 0.95; a MW of 150,000 to 250,000; a methylene sequence length of 6 or greater as determined by 13C NMR, wherein the percentage of sequences of the length of 6 or greater is more than 32%; and can have greater than 50% vinyl chain end functionality. |
| 申请公布号 |
US2016122452(A1) |
申请公布日期 |
2016.05.05 |
| 申请号 |
US201414895807 |
申请日期 |
2014.07.07 |
| 申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
Tse Mun F.;Canich Jo Ann M.;Ruff Charles J.;Bilbao Daniel L.;DeGracia Carlos U.;Stewart Ian C. |
| 分类号 |
C08F210/02 |
主分类号 |
C08F210/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A branched ethylene-propylene copolymer comprising:
at least 50% ethylene content by weight as determined by FTIR; a g′vis of less than 0.98; a methylene sequence length of 6 or greater as determined by 13C NMR, wherein the percentage of sequences of the length of 6 or greater is more than 32%; and greater than 50% vinyl chain end functionality is present. |
| 地址 |
Baytown TX US |
