http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109485754-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F110-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-00 |
| filingDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109485754-B |
| titleOfInvention | Polypropylene containing hydroxyl and preparation method thereof |
| abstract | The hydroxyl-containing polypropylene and the preparation method thereof, wherein the weight content of hydroxyl groups in the polypropylene is 1-20%, and the preparation method comprises the following steps: step (I): chlorinating isotactic polypropylene at the temperature of 110-130 ℃, wherein a chlorination reaction solvent is an aqueous solution, controlling the addition of chlorine to obtain chlorinated polypropylene, and the chlorination rate of the dried chlorinated polypropylene is 1-40%; step (II): dissolving the chlorinated polypropylene obtained in the step (I) by using a solvent at 60-120 ℃, sequentially adding an aryl compound containing hydroxyl, a hydroxyl protective agent and a catalyst, reacting for 1-10h at 60-120 ℃, cooling, filtering out the solvent, washing by using a dilute hydrochloric acid solution, then washing by using a sodium bicarbonate solution, washing until the product is neutral, and drying to obtain the polypropylene containing hydroxyl. The invention has simple process and strong operability, solves the problems of expensive catalysts, complex process equipment, harsh reaction conditions and the like of a plasma method, a noble metal catalysis method, a biological method and the like, and greatly improves the printability and the biocompatibility of the polypropylene. |
| priorityDate | 2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 87.