http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004037589-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_86b90873337a37d0e5b2f0c5b91dfb00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ea0979d580fb39cada80fe7db98e2a67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_671b303e1370490e5cd17d0b17ac1df7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b3a42d6d03610fe2ec97c667782fc02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f007e1be8ef6aecf7a897a44ce5ebc8f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C1-065 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C1-06 |
| filingDate | 2003-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b8012ee7ce07a97a41354f448f18210 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3dc8e022864a253356901e7074483031 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2ede88495eae2f76dd9b6493f98d406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2dc94b4e5c223acc0b64549093dd29cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17e1af6fd13b7453ca10e014994ef0eb |
| publicationDate | 2004-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2004037589-A2 |
| titleOfInvention | Method for producing leather |
| abstract | The invention relates to a method for producing leather, comprising at least two of the following method steps A) to D): A) using one or more polyelectrolytes during the production of semifinished or intermediate products, involving the addition of one or more polyelectrolytes in at least one of steps (a) to (d): (a) together with 0 to 1.5 % by weight of lime, with regard to the weight of salt, immediately before or in the lime pit; (b) before or during deliming; (c) before or during bating; (d) together with, in total, 0 to 3 % by weight of alkaline salt or alkaline earth salt, with regard to the pelt weight, immediately before or in the pickle solution; B) in the lime pit, treating the skins in an aqueous liquor with one or more compounds of general formula (B.1) or with their corresponding alkali metal salts, alkaline earth metal salts, ammonium salts or phosphonium salts, whereby variables R<10> and X<1> to X<4> have the meanings as cited in the description, with the provision that at least two mercapto groups are contained in the compound or compounds B.1; C) using degreasing agents of general formula (C.1) for degreasing pelts, skins or other intermediate stages and semifinished products during the production of leather, whereby variables n and R<16> to R<21> have the meanings as cited in the description; D) tanning by using a tanning agent that can be produced by reacting at least one aldehyde of general formula (D.1) with at least one other identical or different aldehyde of formula (D.1) in the presence of an acid catalyst and, optionally, in the presence of at least one additional carbonyl compound of formula (D.2), whereby variables Z and R<22> to R<25> have the meanings as cited in the description, with the provision that, in the event Z corresponds to a chemical single bond or to a radical without alpha -hydrogen atoms, at least one additional aldehyde of formula (D.1), in which radical Z contains alpha -hydrogen atoms, or at least one additional carbonyl compound of formula (D.2) is present. The invention also relates to leather that is produced according to the inventive method. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7404826-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009249554-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8357207-B2 |
| priorityDate | 2002-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 184.