| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-64 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-0007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C5-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C9-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21C11-0078 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21C9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-03 |
| filingDate |
2018-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2022-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111406136-B |
| titleOfInvention |
Improvement of chemical efficiency in papermaking process |
| abstract |
A method of increasing the chemical efficiency of chemical additives in a papermaking system comprising the steps of providing a thick pulp comprising soluble lignin, process water, and at least about 2% by weight cellulose based on the total weight of the thick pulp fiber, and adding at least one laccase and at least one organic polymer to thick pulp to reduce the amount of soluble lignin therein. The organic polymer is selected from cationic polymers, nonionic polymers and combinations thereof. |
| priorityDate |
2017-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |