View All Documents & Correspondence
Polyarylene Sulfide And Method For Producing Same
Abstract: A method for producing a polyarylene sulfide by reacting a sulfidizing agent with a dihalogenated aromatic compound in an organic polar solvent in the presence of an alkali metal hydroxide the method comprising : carrying out the reaction in such a manner that the polymerization time in a temperature range of 230°C to less than 245°C (T1a) is not less than 30 minutes and less than 3.5 hours and that the conversion ratio of the dihalogenated aromatic compound at the end of the step is 70 to 98 mol.% and : carrying out the reaction in such a manner that the polymerization time in a temperature range of 245°C to less than 280°C (T2) is not less than 5 minutes and less than 1 hour.
Notices, Deadlines & Correspondence
Patent Information
Applicants
TORAY INDUSTRIES INC.
Inventors
1. UNOHARA Takeshi
2. ISAGO Hiroyuki
3. NISHIMURA Toru
4. INOHARA Masahiro
Specification
Please see the attachment.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1758-CHENP-2012 FORM-3 16-08-2012.pdf | 2012-08-16 |
| 1 | Power of Authority.pdf | 2012-03-05 |
| 2 | 1758-CHENP-2012 CORRESPONDENCE OTHERS 16-08-2012.pdf | 2012-08-16 |
| 2 | Form-5.pdf | 2012-03-05 |
| 3 | Form-1.pdf | 2012-03-05 |
| 3 | Form-3.pdf | 2012-03-05 |
| 4 | Form-1.pdf | 2012-03-05 |
| 4 | Form-3.pdf | 2012-03-05 |
| 5 | 1758-CHENP-2012 CORRESPONDENCE OTHERS 16-08-2012.pdf | 2012-08-16 |
| 5 | Form-5.pdf | 2012-03-05 |
| 6 | 1758-CHENP-2012 FORM-3 16-08-2012.pdf | 2012-08-16 |
| 6 | Power of Authority.pdf | 2012-03-05 |