| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-564
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-6436
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-653
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-564
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06M15-643 |
| filingDate |
1974-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1977-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-1485441-A |
| titleOfInvention |
Process for the production of microporous sheets |
| abstract |
1485441 Microporous polyurethanes BAYER AG 4 Sept 1974 [7 Sept 1973] 38649/74 Heading C3R Microporous sheets or films are prepared by coagulating a hygroscopic solution of a non- ionic polyurethane or polyurethane urea to which a suspension of a cationic and an anionic polyurethane or polyurethane urea has been added. The suspensions are added either separately or in the form of a mixture and preferably are suspensions in water or a water/organic solvent mixture. All the polyurethanes or polyurethane ureas are those known in the art and coagulation takes place by conventional techniques. |
| priorityDate |
1973-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |