| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d6daa98d71d6ccd46169a62a5f127e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2310-00365 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A22C13-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L89-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-141
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-325
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L15-40 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F2-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L89-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L89-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L89-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L15-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F4-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A22C13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08H1-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01C3-00 |
| filingDate |
1977-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1978-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
FR-2371475-A1 |
| titleOfInvention |
DISPERSION OF COLLAGEN FIBERS, ITS PREPARATION PROCESS AND ITS APPLICATIONS |
| abstract |
The subject of the invention is a process for preparing an aqueous dispersion of collagen fibers, characterized in that it consists in soaking the collagen material in a 0.3 to 1.0 N aqueous solution of NaOH and containing 10 at 25% by weight of Na2 SO4 and 0.05 to 0.3 M of an amine at a temperature between 15 and 25 degrees C for 5 hours to 10 days; washing with water to remove salts from the soaked material; mechanically grinding the material in an aqueous medium having a pH of 3.5 to 9.5 at a temperature below 25 degrees C to obtain bundles of collagen fibers; tanning the bundles of collagen fibers by treating them in a solution of tanning agent at a concentration of 0.005 to 10% (w / v) at a temperature of 25 to 35 degrees C for 2 to 40 hours; and mechanically grinding and homogenizing the tanned fiber bundles at a pH between 2.0 and 4.0 or 9.0 to 11.0 to obtain a dispersion of collagen fibers with a diameter of 4 to 12 microns and with a length between 2 and 25 mm. The dispersion thus obtained can be used for the manufacture of various shaped articles. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2393581-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0552576-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2502943-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2686612-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2490647-A2 |
| priorityDate |
1976-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |