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Process For Preparing 1 2 Benzisothiazolin 3 One
Abstract: Sodium sulfide hydrate is at least partially dehydrated by heating with N methyl 2 pyrrolidone. 2 Chlorobenzamide is added to the mixture which is heated further. The mixture is cooled and treated with aqueous hydrogen peroxide to give the sodium salt of 1 2 benzisothiazolin 3 one in good yield. Acidification if desired gives rise to the free 1 2 benzisothiazolin 3 one.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
14 April 2014
Publication Number
40/2015
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2019-03-31
Renewal Date
Applicants
TITAN CHEMICALS LIMITED
3076 Sir Francis Drakes Highway
PO Box 3463
Road Town
Tortola VG1110
Inventors
1. BERG Carsten
Aalebaek Strandvej 28
DK 4791 Borre
2. HOULLEMARE Didier
94 Offham Road
West Malling Kent ME19 6RD
3. SINGH Sangita
1 Furrows Place
Caterham Surrey CR3 5EH
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | PCT IB 304.pdf | 2014-04-15 |
| 2 | FORM 5.pdf | 2014-04-15 |
| 3 | FORM 3.pdf | 2014-04-15 |
| 4 | FORM 2 & Complete Specification.pdf | 2014-04-15 |
| 5 | 834-KOLNP-2014.pdf | 2014-04-21 |
| 6 | 834-KOLNP-2014-(29-05-2014)-PA.pdf | 2014-05-29 |
| 7 | 834-KOLNP-2014-(29-05-2014)-CORRESPONDENCE.pdf | 2014-05-29 |
| 8 | 834-KOLNP-2014-(29-05-2014)-ASSIGNMENT.pdf | 2014-05-29 |
| 9 | 834-KOLNP-2014- (11-07-2014)-CORRESPONDENCE.pdf | 2014-07-11 |
| 10 | 834-KOLNP-2014- (11-07-2014)-ANNEXURE TO FORM 3.pdf | 2014-07-11 |
| 11 | 834-KOLNP-2014-FER.pdf | 2018-04-11 |
| 12 | 834-KOLNP-2014-FORM 3 [04-05-2018(online)].pdf | 2018-05-04 |
| 13 | 834-KOLNP-2014-OTHERS [01-10-2018(online)].pdf | 2018-10-01 |
| 14 | 834-KOLNP-2014-FER_SER_REPLY [01-10-2018(online)].pdf | 2018-10-01 |
| 15 | 834-KOLNP-2014-CLAIMS [01-10-2018(online)].pdf | 2018-10-01 |
| 16 | 834-KOLNP-2014-HearingNoticeLetter.pdf | 2018-10-31 |
| 17 | 834-KOLNP-2014-Written submissions and relevant documents (MANDATORY) [08-12-2018(online)].pdf | 2018-12-08 |
| 18 | 834-KOLNP-2014-PatentCertificate31-03-2019.pdf | 2019-03-31 |
| 19 | 834-KOLNP-2014-IntimationOfGrant31-03-2019.pdf | 2019-03-31 |
| 20 | 834-KOLNP-2014-RELEVANT DOCUMENTS [27-01-2020(online)].pdf | 2020-01-27 |
| 21 | 834-KOLNP-2014-RELEVANT DOCUMENTS [09-08-2021(online)].pdf | 2021-08-09 |
| 22 | 834-KOLNP-2014-RELEVANT DOCUMENTS [28-09-2022(online)].pdf | 2022-09-28 |
| 23 | 834-KOLNP-2014-RELEVANT DOCUMENTS [19-09-2023(online)].pdf | 2023-09-19 |
Search Strategy
| 1 | SearchStrategy_11-04-2018.pdf |