| Title of Invention | METHOD FOR DESOLVATION OF POLYMER SOLUTION |
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| Abstract | An objective of the present invention is to provide a desolvation method for removing a solvent efficiently from a polymer solution. In the present desolvation method where the solvent is removed from the polymer solution by steam stripping using an apparatus comprising a pipe which connects a gas phase portion of a desolvation tank at the downstream and a liquid phase portion of a desolvation tank at the upstream, and an opening degree adjusting mean (for example, pressure adjusting valve) fixed to this, pipe, pressures are controlled such that a pressure difference {AP=P1-P2) between pressures of each gas phase portion of desolvation tanks at the downstream and at the upstream is allowed to be larger by from 0.005 to 0.6 MPa, preferably from 0.05 to 0.3 MPa than a pressure difference when the opening-degree adjusting mean is fully opened. In addition, in another present invention, pressures are controlled such that the pressure difference between pressures of each gas phase portion of desolvation tanks at the downstream and at the upstream is allowed to be 0.036 MPa or larger, preferably 0.1 MPa or larger. |
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02434-kolnp-2005-description complete.pdf
02434-kolnp-2005-international publication.pdf
2434-kolnp-2005-granted-abstract.pdf
2434-kolnp-2005-granted-assignment.pdf
2434-kolnp-2005-granted-claims.pdf
2434-kolnp-2005-granted-correspondence.pdf
2434-kolnp-2005-granted-description (complete).pdf
2434-kolnp-2005-granted-examination report.pdf
2434-kolnp-2005-granted-form 1.pdf
2434-kolnp-2005-granted-form 18.pdf
2434-kolnp-2005-granted-form 3.pdf
2434-kolnp-2005-granted-form 5.pdf
2434-kolnp-2005-granted-letter patent.pdf
2434-kolnp-2005-granted-pa.pdf
2434-kolnp-2005-granted-reply to examination report.pdf
2434-kolnp-2005-granted-specification.pdf
| Patent Number | 221885 | ||||||||||||
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| Indian Patent Application Number | 02434/KOLNP/2005 | ||||||||||||
| PG Journal Number | 28/2008 | ||||||||||||
| Publication Date | 11-Jul-2008 | ||||||||||||
| Grant Date | 09-Jul-2008 | ||||||||||||
| Date of Filing | 30-Nov-2005 | ||||||||||||
| Name of Patentee | JSR CORPORATION | ||||||||||||
| Applicant Address | 6-10, TSUKIJI 5-CHOME, CHUO-KU, TOKYO 104-8410 | ||||||||||||
Inventors:
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| PCT International Classification Number | C08F 6/10 | ||||||||||||
| PCT International Application Number | PCT/JP2004/008331 | ||||||||||||
| PCT International Filing date | 2004-06-14 | ||||||||||||
PCT Conventions:
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