http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005096400-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b8e00fc360df4881d7b4d76ce75f64a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F- |
| filingDate | 2003-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f0f8e69800c9a641253786bfa1506ef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c19fbc7dbb48907979603d46710efe12 |
| publicationDate | 2005-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2005096400-A1 |
| titleOfInvention | Method for recycling polyurethane and a composition comprising recycled polyurethane |
| abstract | The present invention comprises a method of recycling polyurethane-containing material. The method comprises combining a polyurethane-containing material with a solvent and forming a solution of the polyurethane-containing material and the solvent. Next, a non-solvent is added to the polyurethane solution to form a suspension of polyurethane in a solvent/non-solvent mixture. Finally, the solvent is removed to form a suspension of polyurethane in solvent. The solvent is preferably a polar, aprotic solvent. The solvent may be chosen from the group consisting of dimethylsulfoxide (DMSO), 1-methyl-2-pyrrolidone (NMP), N,N-dimethylformamide (DMF), acetonitrile, tetrahydrofuran (THF), hexamethylphosphoric acid triamide (HMPT) and mixtures thereof. The polyurethane-containing material may be chosen from the group consisting of foam trimmings, foam buns and foam skin, changeover blocks, off-specification material, polyurethane powder, molding mushrooms, fabrication scrap and post-consumer waste. In addition, the polyurethane-containing material may be prime polyurethane material. Finally a filtration step may be added to filter the solution before the non-solvent is added to form the suspension. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7531049-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023018740-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006186379-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9011740-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114539612-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102021211499-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2023025425-A1 |
| priorityDate | 2003-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.