http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1472245-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4976a2965a6f1f78fd131ea1cd31d5ef |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2379-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S521-902 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-6775 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-092 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 |
| filingDate | 1976-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-05-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1472245-A |
| titleOfInvention | Production of polyurethane foam materials |
| abstract | 1472245 Fire-reslstant, rigid, cellular isocyanurate polyurethanes GAF CORP 25 March 1976 [16 June 1975] 12096/76 Heading C3R Thermally stable, rigid, cellular isocyanurate polyurethanes are obtained by reacting polyols including an unhalogenated polyol and 2,3- dibromo-2-butenediol-1,4 with a polyalkylene polyphenyl polyisocyanate in proportions such that the hydroxy groups present in the total of the polyols are less than 50% of the number of isocyanato groups in the polyisocyanurate; together with a blowing agent; an isocyanate trimerization catalyst; antimony oxide and hydrated alumina. The total polyol used in the reaction mixture may contain, by weight, 50 to 70% brominated butenediol and 30 to 50% of an unhalogenated polyol such as a polyester, polyether or polycaprolactone having hydroxy numbers of 200 to 1000. The antimony oxide and hydrated alumina may be present in proportions by weight of the polyisocyanate of 1 to 20% and 10 to 100% respectively. In a typical example propoxylated sucrose, 2,3- dibromo - 2 - butenediol - 1,4 and polyphenylmethylene polyisocyanate mixed with trichlorofluoromethane; a catalyst comprising an amine polyol and 2,4,6-tris-(dimethylaminomethyl)phenol; antimony oxide, particle size 1 micron; alumina trihydrate, particle size 6À5 to 9À5 microns and a silicone block copolymer surfactant are poured into an open mould, allowed to foam and after 2 minutes the product placed in a curing oven at 90‹ C. for 1 hour to complete the formation of isocyanurate rings. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4362678-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016208065-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101803117-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2336209-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0005761-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8604093-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4311801-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2336209-A3 |
| priorityDate | 1975-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.