| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-147 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G101-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-30 |
| filingDate |
1990-05-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-06-27^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f32d1ca74b4fb71024ce4666eaac084
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b020fe2dd6d5828fbe5ef78994121d14 |
| publicationDate |
2000-06-27^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2016328-C |
| titleOfInvention |
Foaming system for rigid urethane and isocyanurate foams |
| abstract |
This invention relates to a process for preparing a rigid, closed-celled polyisocyanate-based foam in the presence of water and a blowing agent. The blowing agent comprises one or more organic compounds, particularly halocarbons, having a boiling point of from 222K to 272K at atmospheric pressure, and is substantially free of organic compounds having a boiling point of 273K or greater. Preferred halocarbons are chlorofluoroethanes, especially chlorodifluoroethane (R-142b) and fluoroethanes. |
| priorityDate |
1989-05-10^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |