http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2700549-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a899eba0e35112cc25b4aa1b0b7fda90 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-223 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-40 |
| filingDate | 1994-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5b2b8768930bc1ae7867fc7a55cf90b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_783439075247c33ccf645db006007782 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e46677b480d793357a33e75a73a6b2c7 |
| publicationDate | 1994-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2700549-A1 |
| titleOfInvention | Process for the preparation of amine-aldehyde polymers containing sulfo groups, polymers obtained by this process and their use |
| abstract | The invention relates to a process for preparing an amine-aldehyde polymer containing sulfo groups in which at least 50% by weight of the amine is melamine, comprising the steps of (a) preparing a precondensate by reacting together an amine and an aldehyde at alkaline pH in the presence of a material which is capable of providing sulfo groups to the final polymer, (b) reducing the pH of the precondensate to an acidic pH by adding an acid, and (c ) alkalizing the resulting product, characterized in that the material capable of providing sulfo groups is sulfanilic acid and sulfamic acid, the molar ratio of amine to sufanilic acid being 1: 2 to 1.5: 1, the molar ratio of amine to sulfamic acid being 1.43: 1 to 20: 1, and the molar ratio of sulfanilic acid to sulfamic acid being 1: 0 .05 to 1: 0.70. The use of such a polymer as an additive for concrete, mortar and grout. |
| priorityDate | 1993-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.