http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112175349-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2479-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2361-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-182 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-147 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0061 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1071 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-125 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L79-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L61-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12 |
| filingDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112175349-B |
| titleOfInvention | Preparation method of composite melamine resin-polyimide foam |
| abstract | The invention discloses a preparation method of novel composite melamine resin-polyimide foam. Firstly, adding melamine, paraformaldehyde and deionized water into a reactor for reaction, and obtaining a melamine formaldehyde resin prepolymer after reaction treatment; performing esterification reaction on dianhydride substances and absolute methanol/absolute ethanol, and adding diamine substances into diester substances to perform salt forming reaction to obtain a polyester ammonium salt solution; sequentially processing the mixture to obtain polyester ammonium salt prepolymer solution, polyester ammonium salt prepolymer powder or polyimide microspheres; mixing melamine formaldehyde resin prepolymer and polyester ammonium salt prepolymer solution or polyester ammonium salt prepolymer powder or polyimide microspheres, then adding an emulsifier, a curing agent and a foaming agent, stirring at a high speed for emulsification, pouring the emulsified mixture into a mould, placing the mould in a microwave reactor for foaming, and curing the foam to obtain the novel melamine-polyimide composite foam material. The invention improves the thermal stability of the foam by improving the structure of the foam, and simultaneously reduces the content of formaldehyde in the foam. |
| priorityDate | 2020-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 108.