http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104650325-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-52 |
| filingDate | 2015-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104650325-B |
| titleOfInvention | A kind of new polyester polyalcohol and preparation method thereof |
| abstract | The invention discloses a kind of new polyester polyalcohol and preparation method thereof, comprise the following steps: (1) at room temperature, it is 1:1 ~ 8:1 by the mol ratio of dibasic acid dimethyl ester or binary acids diethyl esters and binary acid, as dibasic acid dimethyl ester or binary acids diethyl esters, both binary acid become with the proportions that mol ratio is 1:1 ~ 1:3 of pentaerythrite blend put into equipped with electric mixer, electric heater, reflux condenser, temp measuring system reactor in, and add the catalyst that mass fraction is the 0.3% ~ 3% of blend；(2) reactor is progressively heated up, rise to 200 DEG C ~ 240 DEG C, react 4 hours ~ 6 hours, i.e. obtain a kind of new polyester polyalcohol.Time prepared by this new polyester polyalcohol, cost and energy consumption are relatively low, and without additionally adding acetone equal solvent when the new polyester polyalcohol obtained and di-isocyanate reaction synthesis of polyurethane so that polyurethane moulded faster and building-up process more environmental protection. |
| priorityDate | 2015-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.