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Method For Manufacturing Tolylene Diisocyanate
Abstract: A method for manufacturing tolylene diisocyanate comprises a mixing step a carbamate manufacturing step and a pyrolysis step. In the mixing step a first diaminotoluene containing 2 4 and 2 6 diaminotoluene in a first isomeric ratio is mixed with a second diaminotoluene containing 2 4 and/or 2 6 diaminotoluene in a second isomeric ratio and mixed diaminotoluene is prepared. In the carbamate manufacturing step a reaction is brought about between the mixed diaminotoluene prepared in the mixing step urea and/or N unsubstituted carbamate and an alcohol whereby tolylene dicarbamate is produced. In the pyrolysis step the tolylene dicarbamate is pyrolyzed.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
13 November 2013
Publication Number
50/2014
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
knk@kankrishme.com
Parent Application
Patent Number
Legal Status
Grant Date
2018-03-20
Renewal Date
Applicants
MITSUI CHEMICALS INC.
5 2 Higashi Shimbashi 1 chome Minato ku Tokyo
1057117
Inventors
1. TAKAMATSU Koji
c/o MITSUI CHEMICALS INC. 580 32 Nagaura Sodegaura shi Chiba
2990265
2. KOSUMI Kazuhiro
c/o MITSUI CHEMICALS INC. 30 Asamutacho Omuta shi Fukuoka
8368610
3. FUKUDA Takeshi
c/o MITSUI CHEMICALS INC. 30 Asamutacho Omuta shi Fukuoka
8368610
4. SASAKI Masaaki
c/o MITSUI CHEMICALS INC. 580 32 Nagaura Sodegaura shi Chiba
2990265
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 9104-CHENP-2013-FORM-26 [04-01-2021(online)].pdf | 2021-01-04 |
| 1 | ib304.pdf | 2013-11-18 |
| 2 | 9104-CHENP-2013-RELEVANT DOCUMENTS [19-03-2020(online)].pdf | 2020-03-19 |
| 2 | Form 5.pdf | 2013-11-18 |
| 3 | Form 3.pdf | 2013-11-18 |
| 3 | 9104-CHENP-2013-RELEVANT DOCUMENTS [14-03-2019(online)].pdf | 2019-03-14 |
| 4 | DRAWINGS.pdf | 2013-11-18 |
| 4 | 9104-CHENP-2013-IntimationOfGrant20-03-2018.pdf | 2018-03-20 |
| 5 | complete spec1.pdf | 2013-11-18 |
| 5 | 9104-CHENP-2013-PatentCertificate20-03-2018.pdf | 2018-03-20 |
| 6 | Abstract_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 6 | 9104-CHENP-2013 FORM-13 21-11-2013.pdf | 2013-11-21 |
| 7 | Claims_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 7 | 9104-CHENP-2013 FORM-1 21-11-2013.pdf | 2013-11-21 |
| 8 | Description_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 8 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 21-11-2013.pdf | 2013-11-21 |
| 9 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 21-11-2013.pdf | 2013-11-21 |
| 9 | Marked Up Claims_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 10 | 9104-CHENP-2013 POWER OF ATTORNEY 21-11-2013.pdf | 2013-11-21 |
| 10 | 9104-CHENP-2013-ABSTRACT [22-02-2018(online)].pdf | 2018-02-22 |
| 11 | 9104-CHENP-2013 DRAWINGS 21-11-2013.pdf | 2013-11-21 |
| 11 | 9104-CHENP-2013-CLAIMS [22-02-2018(online)].pdf | 2018-02-22 |
| 12 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 11-12-2013.pdf | 2013-12-11 |
| 12 | 9104-CHENP-2013-COMPLETE SPECIFICATION [22-02-2018(online)].pdf | 2018-02-22 |
| 13 | 9104-CHENP-2013 ASSIGNMENT 11-12-2013.pdf | 2013-12-11 |
| 13 | 9104-CHENP-2013-CORRESPONDENCE [22-02-2018(online)].pdf | 2018-02-22 |
| 14 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 20-12-2013.pdf | 2013-12-20 |
| 14 | 9104-CHENP-2013-FER_SER_REPLY [22-02-2018(online)].pdf | 2018-02-22 |
| 15 | 9104-CHENP-2013 ENGLISH TRANSLATION 20-12-2013.pdf | 2013-12-20 |
| 15 | 9104-CHENP-2013-OTHERS [22-02-2018(online)].pdf | 2018-02-22 |
| 16 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 09-01-2014.pdf | 2014-01-09 |
| 16 | 9104-CHENP-2013-Information under section 8(2) (MANDATORY) [15-02-2018(online)].pdf | 2018-02-15 |
| 17 | 9104-CHENP-2013.pdf | 2014-01-10 |
| 17 | 9104-CHENP-2013-FER.pdf | 2017-11-24 |
| 18 | 9104-CHENP-2013 FORM-3 27-01-2014.pdf | 2014-01-27 |
| 18 | Other Patent Document [25-05-2016(online)].pdf | 2016-05-25 |
| 19 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 27-01-2014.pdf | 2014-01-27 |
| 19 | 9104-CHENP-2013-Correspondence-Form-3-171115.pdf | 2016-05-18 |
| 20 | 9104-CHENP-2013 FORM-3 19-05-2015.pdf | 2015-05-19 |
| 20 | 9104-CHENP-2013-Form 3-171115.pdf | 2016-05-18 |
| 21 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 19-05-2015.pdf | 2015-05-19 |
| 21 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 29-07-2015.pdf | 2015-07-29 |
| 22 | 9104-CHENP-2013 FORM-3 29-07-2015.pdf | 2015-07-29 |
| 23 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 19-05-2015.pdf | 2015-05-19 |
| 23 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 29-07-2015.pdf | 2015-07-29 |
| 24 | 9104-CHENP-2013-Form 3-171115.pdf | 2016-05-18 |
| 24 | 9104-CHENP-2013 FORM-3 19-05-2015.pdf | 2015-05-19 |
| 25 | 9104-CHENP-2013-Correspondence-Form-3-171115.pdf | 2016-05-18 |
| 25 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 27-01-2014.pdf | 2014-01-27 |
| 26 | 9104-CHENP-2013 FORM-3 27-01-2014.pdf | 2014-01-27 |
| 26 | Other Patent Document [25-05-2016(online)].pdf | 2016-05-25 |
| 27 | 9104-CHENP-2013-FER.pdf | 2017-11-24 |
| 27 | 9104-CHENP-2013.pdf | 2014-01-10 |
| 28 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 09-01-2014.pdf | 2014-01-09 |
| 28 | 9104-CHENP-2013-Information under section 8(2) (MANDATORY) [15-02-2018(online)].pdf | 2018-02-15 |
| 29 | 9104-CHENP-2013 ENGLISH TRANSLATION 20-12-2013.pdf | 2013-12-20 |
| 29 | 9104-CHENP-2013-OTHERS [22-02-2018(online)].pdf | 2018-02-22 |
| 30 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 20-12-2013.pdf | 2013-12-20 |
| 30 | 9104-CHENP-2013-FER_SER_REPLY [22-02-2018(online)].pdf | 2018-02-22 |
| 31 | 9104-CHENP-2013 ASSIGNMENT 11-12-2013.pdf | 2013-12-11 |
| 31 | 9104-CHENP-2013-CORRESPONDENCE [22-02-2018(online)].pdf | 2018-02-22 |
| 32 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 11-12-2013.pdf | 2013-12-11 |
| 32 | 9104-CHENP-2013-COMPLETE SPECIFICATION [22-02-2018(online)].pdf | 2018-02-22 |
| 33 | 9104-CHENP-2013 DRAWINGS 21-11-2013.pdf | 2013-11-21 |
| 33 | 9104-CHENP-2013-CLAIMS [22-02-2018(online)].pdf | 2018-02-22 |
| 34 | 9104-CHENP-2013 POWER OF ATTORNEY 21-11-2013.pdf | 2013-11-21 |
| 34 | 9104-CHENP-2013-ABSTRACT [22-02-2018(online)].pdf | 2018-02-22 |
| 35 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 21-11-2013.pdf | 2013-11-21 |
| 35 | Marked Up Claims_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 36 | Description_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 36 | 9104-CHENP-2013 CORRESPONDENCE OTHERS 21-11-2013.pdf | 2013-11-21 |
| 37 | Claims_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 37 | 9104-CHENP-2013 FORM-1 21-11-2013.pdf | 2013-11-21 |
| 38 | Abstract_Granted 294580_20-03-2018.pdf | 2018-03-20 |
| 38 | 9104-CHENP-2013 FORM-13 21-11-2013.pdf | 2013-11-21 |
| 39 | complete spec1.pdf | 2013-11-18 |
| 39 | 9104-CHENP-2013-PatentCertificate20-03-2018.pdf | 2018-03-20 |
| 40 | DRAWINGS.pdf | 2013-11-18 |
| 40 | 9104-CHENP-2013-IntimationOfGrant20-03-2018.pdf | 2018-03-20 |
| 41 | Form 3.pdf | 2013-11-18 |
| 41 | 9104-CHENP-2013-RELEVANT DOCUMENTS [14-03-2019(online)].pdf | 2019-03-14 |
| 42 | 9104-CHENP-2013-RELEVANT DOCUMENTS [19-03-2020(online)].pdf | 2020-03-19 |
| 42 | Form 5.pdf | 2013-11-18 |
| 43 | 9104-CHENP-2013-FORM-26 [04-01-2021(online)].pdf | 2021-01-04 |
| 43 | ib304.pdf | 2013-11-18 |
Search Strategy
| 1 | Searchstrategy9104_21-11-2017.pdf |