http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1133660-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_adb354d10093b5e5c88ce1e66d822674 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-10 |
| filingDate | 1978-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1de4a767fea82224aa3e1c4ac30b5c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4461d39c13fe1b66c801ef082a24fb7b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2ab3d401062f4b348dd108ae04fa1cb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_177af319108f93bac3024122d7abcb35 |
| publicationDate | 1982-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1133660-A |
| titleOfInvention | Process for the preparation of cellulose fibres from pine |
| abstract | ABSTRACT OF THE DISCLOSURE The present invention provides a process for the prep-aration of cellulose fibres from pine, which are of the medium-viscosity to high-viscosity type, wherein the cellulose fibres obtained from pulping pine in sulphite cookers are treated, when required with a quantity of chlorine, which corresponds to between 0.01 and 20% by weight of the quantity of chlorine used in clas-sical bleaching procedures applied to sulphite process cellulose fibres from pine, and/or wherein said cellulose fibres from pine, which have not been delignified further or only to a very limited extent in this treatment with chlorine, are pretreated, when required in an acidic medium, whereupon said cellulose fibres from pine are refined with alkali at an elevated temperature, and thereafter delignified in an alkaline, aqueous medium with per-oxide compounds, and then bleached by applying conventional single-stage or multi-stage bleaching procedures. |
| priorityDate | 1977-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.