| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b02d9da528486f70faca029a7557a9d5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-089
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-664
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6607
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-0852
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-2805
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6611 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-18 |
| filingDate |
1970-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33d158af63baa5183f1bfd6c92d5cb7c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c919d9dd49b67ea972ce2ae940f371e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9e83be17b8bd87c4903cea8198c8562 |
| publicationDate |
1973-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3709864-A |
| titleOfInvention |
Polyurethanes |
| abstract |
MICROPOROUS LEATHER SUBSTITUTES ARE MADE FROM HIGH MOLECULAR WEIGHT LINEAR THERMOPLASTIC ELASTOMERIC POLYURETHANES OF I.V. 0.9-2 WHICH HAVE BEEN PREPARED BY REACTION IN SOLUTON IN DIMETHYLFORMAMIDE ("DMF") SOLVENT WHICH CONTAINS SUBSTANTIALLY NO FREE TERTIARY AMINE. A MONOFUNCTIONAL STRONG MINERAL ACID IS ADDED TO NEUTRALIZE FREE TERTIARY AMINE GROUPS. A HYDROXYL-TERMINATED PREPOLYMER AND A DIOL CHAIN EXTENDER ARE REACTED WITH A SMALL EXCESS OF DIISOCYANATE, UNTIL THE -NCO CONTENT BECOMES CONSTANT, THEN A DIOL CHAIN EXTENDER IN AMOUNT EQUIVALENT TO THE REMAINING -NCO AND REACTION IS CONTINUED, AND THEN TERMINATED WITH AN ALCOHOL AFTER THE HIGH I.V. IS ATTAINED. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4783857-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6063824-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4888829-A |
| priorityDate |
1968-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |