http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104710366-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e9854f4ac84f2fce0a2f6f6bdef83b6f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-432 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-40 |
| filingDate | 2013-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95dcd3db4532957b72b454ff08bcc5bf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f6fe16d0d8deace82561c2bb651f5dd |
| publicationDate | 2015-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104710366-A |
| titleOfInvention | Improved preparation method of dimethylol dihydroxy ethylene urea |
| abstract | The invention provides a preparation method of dimethylol dihydroxy ethylene urea. The method comprises the following steps: 1, reacting urea with glyoxal in the presence of sulfonic acid and sulfonic acid alkali metal salt at 30-60DEG C for 3-6h to prepare a dihydroxy ethylene urea intermediate; and 2, reacting the dihydroxy ethylene urea intermediate obtained in step 1 with a formaldehyde and optional organic alcohol amine mixture in the presence of dialkali metal hydrogen phosphate and alkali metal dihydrogen phosphate at 40-60DEG C for 2-4h to obtain a target product. The preparation method has the advantages of stable reaction and high conversion rate, and the product has the advantages of high content of active groups, and strong responsivity. |
| priorityDate | 2013-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.