http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-85853-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4fb7bd5bdf038b472fc38032242bca83 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G71-04 |
| filingDate | 1982-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56df1757651f51b3b03acb8e212a3de5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_896a5f1fa09c46bdf574d117454d72ee http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_210590dfd661395ac2522830050d4458 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1fbe1c2c3ccbe4dfc151b7ae196a25ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ddce9b3864cf53b90cab78d0b065fd4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_513ac748266ac9a8d537694b46005f0d |
| publicationDate | 1985-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-85853-B1 |
| titleOfInvention | PROCEDURE FOR OBTAINING POLYOLETH POLYETHYLS FOR RIGID POLYURETHANE FUME |
| abstract | The invention relates to a process for the preparation of polyether polyols for rigid polyurethane foams according to the invention, addition of alkylene oxides selected from ethylene oxide, propylene oxide to high functionality polyols selected from glycerol, pentaerythritol, sorbitol, sucrose, glucose at 70 ... 160 degrees C and pressure of 1 ... 8 kgf / cm2, in solvent medium selected from benzene, toluene, dimethylformamide, in a weight ratio of 0.5 ... 2: 1 to the polyol, using the right Sterically low amine amine catalyst of the order of 2 CH3 / N atoms selected from dimethylamine 40 ... 50% aqueous solution of trimethylaminoethanol, dimethylaminopropanol, dimethylamine cyano-cyclates in a proportion of 1 to 10% by weight of the polyol mixture , followed by distillation of the unreacted solvent and the unreacted monomer and recirculation thereof in the process. |
| priorityDate | 1982-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.