http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3975486-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cd8f87c2e2155f28c291bf199765144f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-18 |
| filingDate | 1973-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1976-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_763dc59875672edaf9cc804358768d88 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75a8364433e425aae94c3636e802db08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07a94e042b8ff0bb68df95665407db75 |
| publicationDate | 1976-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3975486-A |
| titleOfInvention | Process for producing anti-pilling acrylic fiber |
| abstract | The present invention relates to a process for producing an anti-pilling acrylic fiber which has excellent level dyeing properties. This process involves dissolving an acrylonitrile in an inorganic solvent to prepare a spinning solution, wherein the inorganic solvent in the spinning solution is 40-70%, subjecting the spinning solution to wet-spinning by extrusion through spinneret orifices into a coagulation bath containing an inorganic solvent in an amount of 50-70% of that in the spinning solution, while maintaining the linear velocity ratio of free extrusion at 1 or higher and the jet stretch ratio 1.5 or higher, stretching the formed gel fibers 3-7 times the length in hot water or in a heated steam medium at 80 DEG -120 DEG C, drying the stretched fibers and then subjecting the fibers to a relaxation treatment in a hot air current at a temperature of 150 DEG C or lower or in a wet heat atmosphere at a temperature of 120 DEG C or lower. The jet stretch ratio is defined as being the quotient obtained by dividing the takeup speed of the coagulated filaments from the coagulation step by the linear velocity of extrusion of the spinning solution through the spinneret orifices. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0471657-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0471657-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4347203-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4659529-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4448740-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007098982-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006214323-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005125908-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101748498-B |
| priorityDate | 1972-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 90.