| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8bf4593b9780588788aa7d9f90407e78 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S528-906 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-0852
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4866
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4808
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-222
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-70 |
| filingDate |
2002-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2005-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_63a5cb3ebb1993fdcc620b544a04a713
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74a05b65d99a58a3f47928e91292e172
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb8b63cdfa5a660f6d09de81a64e8100 |
| publicationDate |
2005-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6906163-B2 |
| titleOfInvention |
Prepolymer catalysts suitable for preparing spandex fibers |
| abstract |
Segmented polyurethane/ureas useful for the production of spandex, particularly spandex fibers, are made from isocyanate-terminated prepolymers formed by reacting excess isocyanate with an isocyanate-reactive component satisfying specified compositional requirements in the presence of a catalyst which promotes linear polymerization but does not cause degradation of the polymer. Suitable catalysts include metal salts of organic fatty acids and/or of naphthenic acid. The isocyanate-reactive component includes at least 10 equivalent percent of a polyoxypropylene diol having a number average molecular weight of at least about 1500 Da and an average unsaturation level less than or equal to 0.03 meq/g and up to 90 equivalent percent of a polytetramethylene glycol having a number average molecular weight of at least 200 Da. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005070682-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019209348-A1 |
| priorityDate |
2002-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |