http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107502273-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4238 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4829 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-792 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J175-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4018 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J175-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-79 |
| filingDate | 2017-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107502273-B |
| titleOfInvention | Preparation of solvent-free dual-curing polyurethane adhesive |
| abstract | The invention discloses a preparation method of a solvent-free dual-curing polyurethane adhesive, which comprises the following steps: adding 1, 4-butanediol into adipic acid and maleic anhydride serving as raw materials, heating to 150 ℃ for dehydration, heating to 210 ℃ for dehydration, adding tetrabutyl titanate catalyst after constant temperature, and vacuumizing to obtain unsaturated polyester polyol; and (2) measuring the hydroxyl value and the acid value of the unsaturated polyester polyol, and calculating the molecular weight Mn of the unsaturated polyester polyol according to the hydroxyl value and the acid value: adding polyether polyol and isocyanate into the obtained unsaturated polyester polyol, stirring and heating to 80-90 ℃, adding a micromolecular polyol chain extender, reacting at constant temperature until the viscosity is 5000-8000cps, adding an end-capping agent, stirring at constant temperature, adding a viscosity reducer, a water removing agent and a composite catalyst, and uniformly mixing to obtain the target product polyurethane adhesive. The invention adopts a method of combining light curing and moisture curing, and improves the mechanical property of the adhesive. |
| priorityDate | 2017-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.