http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1470096-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630c5460ff4807f5595578a7ce8e89a4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M13-127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H11-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M13-123 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H11-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M13-123 |
| filingDate | 1974-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1470096-A |
| titleOfInvention | Cellulosic materials capable of absorbing water or aqueous solutions and their production |
| abstract | 1470096 Treating cellulosic fibres; mats; highly water absorbable cellulose fibre mats CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS CARTONS ET CELLULOSES 4 April 1974 [5 April 1973] 15041/74 Headings D2B D1R and D2W A method of preparing modified cellulosic fibres comprises reacting individual, substantially dehydrated, cellulosic fibres that are separated from each other and free of interfibre bonds with a cross-linking agent in the presence of an acid catalyst in a medium whose water content is low enough to avoid swelling of the fibres during cross-linking, whereby cross-linking occurs between cellulose molecules or chains within the fibres only, to the exclusion of cross-linking between cellulose molecules or chains belonging to different fibres. The modified cellulosic fibres may be formed into a mat by conventional wet or dry methods, the mat being virtually devoid of inter-fibre bonds and capable of absorbing water essentially by a capillary action. The cellulosic fibres that are treated with the cross-linking agent may be (a) a dry papermaking pulp that has been subjected tq mechanical treatment or (b) a pulp which has been subjected to at least one solvent exchange treatment with a water-miscible solvent capable of extracting water from the fibres. Specified cross-linking agents include formaldehyde, tetraoxan, glyoxal, glutaraldehyde, and tetrakis (hydroxymethyl) phosphonium chloride. The mats may be used as absorbent waddings, and highly porous papers for impregnation. |
| priorityDate | 1973-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.