Process and apparatus for controlling the manufacture of polymers
US5155184A · kind A · utility
25Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Oct 4, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2400/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the manufacture of a polymer having at least one property P with a desired value D, the process being controlled by periodically sampling the polymer produced, or being produced by the process, determining the value of the property P by applying a correlation relationship with n results R.sub.i of n absorbance measurements obtained by analyzing the sample with an infrared spectrometer at n wavelengths in the near infrared region and then using the difference between the determined value of the property P and the desired value D to control the process parameters using a process computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.