发明名称 |
Manufacturing process control and product characterization |
摘要 |
The viscous and elastic components of a viscoelastic melt, for example a polymer melt, are examined to provide information useful in quality control in the process for the manufacture of the material. Measurement of the entrance pressure drop exhibited by the viscoelastic fluid when forced through a narrow die is shown to be an effective means of preparing polymers of differentiated property characteristics despite otherwise being similar in terms of commonly measured properties of molecular weight and melt index.
|
申请公布号 |
US5202395(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19910716193 |
申请日期 |
1991.06.17 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
CHAMBON, FRANOIS |
分类号 |
C08F2/00;G01N11/08;G01N33/44 |
主分类号 |
C08F2/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|