http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0962498-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b051f9f7933c758e66f6ceda5c9fb2cc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0014 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B41-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0096 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B67-0028 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B67-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B41-00 |
| filingDate | 1999-05-26^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f78934fce2224974587fcdf19bfef163 |
| publicationDate | 1999-12-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0962498-A2 |
| titleOfInvention | Preparation of disperse azo dyestuffs in the presence of alkoxylated acetylenic diols |
| abstract | The use of alkoxylated acetylenic diol surfactants in the aqueous synthesis ofndisperse azo dyes provides a simple process for improving filtration properties ofndyestuff. The surfactants may be added prior to the coupling step of the synthesis ornprior to heat treatment of the dye slurry. Advantages that are realized by incorporationnof the surfactants into the synthesis include decreased filtration time, increased solidncontent in filter cake, improved washing properties of filter cake, and increased dye yield.nIn addition, for azo dyes that are synthesized as non-heat-stable crystal modifications,nthe presence of alkoxylated acetylenic diol surfactants in the dye slurry is effective innpromoting the conversion of the dye to the desired thermally stable crystal modification. |
| priorityDate | 1998-05-27^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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