Method for producing modified polymer and hydrogenated product thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 14, 2017
Grant Date -
Sep 18, 2014
app pub date -
May 30, 2014
filing date -
Dec 7, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for producing a modified polymer or a hydrogenated product thereof, includes polymerizing a monomer in a polymerization solvent which includes a hydrocarbon-based solvent, using a polymerization initiator to obtain a reaction solution. A functional group is introduced into the modified polymer or the hydrogenated product thereof, using a compound having the functional group protected with a silyl group. The reaction solution is separated into a solvent fraction including the hydrocarbon-based solvent, and a solid fraction including the modified polymer or the hydrogenated product thereof. The solvent fraction separated from the reaction solution is distilled to obtain a low-boiling fraction including the hydrocarbon-based solvent and a silanol compound. At least part of the silanol compound is removed from the low-boiling fraction by liquid-liquid extraction. At least part of a raffinate of the low-boiling fraction is recycled as a polymerization solvent.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- C08J Class
- 1723 Applications Filed
- 1369 Patents Issued To-Date
- 79.46 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C08J Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 14, 2028 |
