http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109336999-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D251-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F212-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D251-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-08 |
| filingDate | 2018-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109336999-B |
| titleOfInvention | Acid absorbent, preparation method thereof and application of acid absorbent for reducing acid content of isocyanate product |
| abstract | The invention belongs to the field of isocyanate production, and particularly relates to an acid absorbing agent, a preparation method thereof and application of the acid absorbing agent in reducing acid content of an isocyanate product. The acid absorbent is prepared by carrying out suspension copolymerization on styrene and stilbene in a water phase to obtain a copolymer bead body, and then carrying out chloromethylation and amination reaction. The isocyanate product is treated by an acid absorbent through physical adsorption and chemical adsorption methods, so that acid components and hydrolytic chlorine in the isocyanate are adsorbed on the surface of the acid absorbent by substances, the acid component of the isocyanate is reduced to be within 60ppm, and a certain improvement effect is brought to the color appearance. |
| priorityDate | 2018-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 70.