| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d91f9ac4e16ad7688253b862d3924094 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H23-765 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H23-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-68 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-37
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H23-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-63 |
| filingDate |
1989-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2bb7503c23bfeff01fcb28a2e1c3bb1c |
| publicationDate |
1993-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1324707-C |
| titleOfInvention |
Retention and drainage aid for papermaking |
| abstract |
RETENTION AND DRAINAGE AID FOR PAPERMAKING ABSTRACT OF THE DISCLOSURE A papermaking stock comprising cellulose fibers in an aqueous medium at a concentration of preferably about 50% by weight of the total solids in the stock including a retention and dewatering aid comprising a two component combination of an anionic polyacrylamide and a cationic colloidal silicia sol. The stock exhibits enhanced resistance to shear forces during the papermaking process. A papermaking process is also de-scribed. |
| priorityDate |
1988-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |