http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SI-9500079-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06L4-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06L4-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06L3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06L3-12 |
| filingDate | 1995-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b2e5dc60b8e1a67344b2a98ab61bdb2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d28bfed18a8e7a264344755b06c31d9 |
| publicationDate | 1995-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SI-9500079-A |
| titleOfInvention | Bleaching synthetic fibres |
| abstract | Synthetic fibres are bleached using a soln., at 100-135 degrees C,that contains H2O2 and has pH 3-7. Pref. the soln. contains ≤ 65 (pref. 20-35) wt.% H2O2 soln., e.g. 1-20 ml/l of a 35 wt.% soln. It may include: (1) stabilisers, pref. <0.5 (esp. 0.3) wt.% alkaline earth (e.g. Mg and/or Ca) metal salts; (2) organic complexing agents, pref. aminocarboxylic acids and their alkali salts at 0.1-5 (pref. 0.2-1) g/l; (3) 0.1-5 (pref. 0.2-1) g/l bleaching auxiliary (esp. protein degradation product, alkyl- or alkylaryl-phosphate); (4) surfactant, pref. alkyl-phenol condensate; alkyl-aryl-sulphonic acid and/or alkyl sulphate at 0.5-3 (pref. 1-2) g/l; (5) 0.5-10 (pref. 2-3) g/l polyphosphate, partic. of formulae: Mn+2PnO3n+1 or MnPnO3n, where M = alkali(ne earth) or NH4 ion; n = 1-6; (6) 0.1-5 g/l optical brightener. Treatment is at pH 5-7 and 120-130 degrees C (corresponding to 1-3.5, partic. 2-3, atm.), using a goods to liquor ratio 1:3-40, pref. 1:10-20. Bleaching is typically for 80-120 mins. at 100 degrees C or for 10-30 mins. at 135 degrees C. |
| priorityDate | 1994-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.