| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_37ffeb5cafc6585168ac40b8a13b38d4 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B7-00 |
| filingDate |
1987-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab977e50d13ad4f233fef09476fa7f75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c438e790f80572aa798240381a7fb161
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0fc2d070cf45bcc00d1dbc8ae76b0b75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93b51623ea1959b7c532c2f1ccabe667 |
| publicationDate |
1989-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DD-264223-A1 |
| titleOfInvention |
PROCESS FOR PREPARING BIS- (3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-3-ON-2-YLIDENE) |
| abstract |
The invention relates to a process for the preparation of bis (3,4-dihydro-2H-1,4-benzothiazin-3-one-2-ylidenes) which are of interest as colored pigments in the field of color chemistry. The essential features of the invention are that acceptor-substituted 2-haloanilides of chloroacetic acid are reacted in a sulfuric and tertiary amine solvent. |
| priorityDate |
1987-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |