http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-655912-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8de5139152a03d72ffe4095641046e69 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-423 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07G99-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-423 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07G99-00 |
| filingDate | 1948-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1951-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-655912-A |
| titleOfInvention | Manufacture of condensation products primarily intended for use in the treatment of textile materials |
| abstract | The condensate obtained by reacting an organic acid amide with glyoxal to substitute part of the reactive hydrogen atoms followed by further reaction with formaldehyde to substitute the remainder as described in Specification 655,193, [Group XL (c)], is modified by further condensation in an acid medium with not more than molar proportions of a monohydric fatty alcohol having more than 10 carbon atoms, preferably 15-20 carbon atoms; the reaction is preferably carried out in the presence of an emulsifier, e.g. a sulphonate of the fatty alcohol used in the condensation or an ethylene oxide-alcohol condensate; alternatively a solvent for fatty alcohols but inert to methylol groups may be present, e.g. N-methyl pyrrolidene, dimethyl or methylol formamide. Immersion in aqueous solutions of the modified condensate gives fabrics water repellency characteristics and resistance to washing with soap and sodium carbonate. In the example, 1.5 kg. urea is dissolved in 5.8 kg. glyoxal; the mixture is acidified with HCl and boiled; the precipitate obtained is reacted with alkaline 30 per cent formaldehyde and boiled until all formaldehyde is combined; 0.05 kg. sulphonated n-octadecyl alcohol is added to the product which is then neutralized with caustic soda lye; a further 0.54 kg. of n-octadecyl alcohol are added while refluxing and finally 0.75 per cent of the condensation product of ethylene oxide and the alcohol and some paraffin. The mixture is emulsified and cools to a homogeneous paste which, diluted with water and mixed with ammonium nitrate, is used as the textile bath.ALSO:Textiles are treated with the condensate obtained by reacting an organic acid amide with glyoxal and formaldehyde as described in Specification 655,913, [Group XL (c)], but modified by further condensation in an acid medium with not more than molar proportions of a monohydric fatty alcohol having more than 10 carbon atoms, preferably 15-20 carbon atoms; the reaction is preferably carried out in the presence of an emulsifier, e.g. a sulphonate of the fatty alcohol used in the condensation or an ethylene oxide alcohol condensate; alternatively a solvent for fatty alcohols but inert to methylol groups may be present, e.g. N-methyl pyrrolidine, dimethyl or methylol formamide. Immersion in aqueous solutions of the modified condensate gives fabrics which are not only resistant to shrinking but have water-repellent characteristics, these properties being resistant to washing with soap and sodium carbonate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-1190425-B |
| priorityDate | 1948-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.