| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8b9b07baa39efdd68eb1506a375245f8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0025
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2375-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-1833
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-2081
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-146 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14 |
| filingDate |
1995-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15cdb00cb3041f3a0af3cb0a33e105ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92f8d1d10049333da7766219faa781ec |
| publicationDate |
1995-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5455283-A |
| titleOfInvention |
Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture |
| abstract |
There is now provided a closed cell rigid polyisocyanate based foam blowing with a C1-C4 hydrofluorocarbon and water as blowing agents, which possesses a uniform density gradient varying by not more than 10 percent. There is also now provided a froth foaming mixture having good flow by employing a hydroxy terminated polyol which is pH neutral and a tertiary amine ether blow catalyst in an amount of 0.5 weight percent or more, using water and a C1-C4 hydrofluorocarbon having a boiling point of 300 DEG K. or less as co-blowing agents. There is also provided a polyol composition having an average OH number of less than 400 and an average functionality of greater than 4, which when reacted with the isocyanate in the presence of a C1-C4 hydrofluorocarbon, yields a rigid closed cell polyisocyanate based dimensionally stable foam. The formulation according to an especially preferred embodiment of the invention simultaneously satisfies the following requirements: 1) a formulated polyol composition having a viscosity of 550 cP or less; 2) the isocyanate stream and the formulated polyol stream dispensable at a 0.9:1 to 1.3:1 weight ratio, respectively; 3) frothing when dispensed from a static mixer; 4) produces a frothing foaming mixture having excellent flow characteristics as demonstrated by a substantially uniform density gradient; 5) and produces a dimensionally stable dosed cell foam having a low overall density of 2.5 pcf or less. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20040024064-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9598605-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006052468-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9592516-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1382624-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5951796-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011059255-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1114709-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1114709-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6130268-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5912279-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8828495-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004082465-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6534556-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007043132-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2500368-A3 |
| priorityDate |
1994-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |