| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_824448eec22bc414e8c5bd3143473df1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2800-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2201-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-455
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F222-385
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L39-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L39-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-44 |
| filingDate |
2015-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10997238c00566144de4c8de59992b04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d87452fdd625eb20519e9530a3b4bea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da7e174114e06347ef1136250dc92a7c |
| publicationDate |
2016-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2016311940-A1 |
| titleOfInvention |
Aqueous solution of cationic copolymers derived from acrylamide, preparation method and use |
| abstract |
The present invention relates to a process for the preparation of an aqueous polymer solution containing at least one cationic or amphoteric (co)polymer, comprising the following steps:n Hofmann degradation reaction on a (co)polymer based on at least one non-ionic monomer chosen from the group including acrylamide, methacrylamide, N, N-dimethylacrylamide, and acrylonitrile; post-processing of the resulting aqueous polymer solution of viscosity V1; characterized in that the post processing comprises the following successive steps: obtaining of an aqueous polymer solution containing at least one cationic or amphoteric (co)polymer derived from the Hofmann degradation reaction; post-processing of this aqueous polymer solution; characterized in that the post processing comprises the following successive steps:n (a) adjustment of the pH of the aqueous polymer solution to a value greater than or equal to 5.5; (b) decrease of the pH of the aqueous polymer solution to a value between 2 and 5. n nn The invention also concerns the use of this polymer solution as a flocculant, retention and/or drainage agent, and dry strength resistance in a paper manufacturing process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10920065-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11708481-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10072217-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11459702-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016257891-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9914882-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11214926-B2 |
| priorityDate |
2014-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |