| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G14-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G14-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C3-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G14-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G14-06 |
| filingDate |
1969-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd06573a15ab6ef7ac849862a22ad48f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08d5726bed3d8e3eb6aa5dd9b96e0558 |
| publicationDate |
1971-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-1935006-A1 |
| titleOfInvention |
Process for the production of condensation products with a tanning effect |
| abstract |
Condensates are prepd. by reaction of sulphonated or sulphomethylated phenols with formaldehyde and acid amides or derivatives of acid amides, with subsequent post-treatment of these condensates/with phenols and formaldehydes or the reaction products of phenols and formaldehyde. The condensate obtained in the first operational step are post-treated with (a) aromatic hydroxymethyl compounds and (b) urea. Post-treatment is effected at 30-80 degrees C. The products are suitable for use as tanning agents. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2374345-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2343763-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3973904-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2609531-A1 |
| priorityDate |
1969-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |