http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109763380-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H21-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-14 |
| filingDate | 2019-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109763380-B |
| titleOfInvention | Wet strength agent for papermaking and preparation method thereof |
| abstract | The invention discloses a wet strength agent for papermaking, which comprises the following components in parts by weight: 30-60 parts of polyethylene polyamine, 40-70 parts of organic dibasic acid, 10-30 parts of epoxy chloropropane and 5-10 parts of acrylic acid/acrylate copolymer; the structural formula of the acrylic/acrylate copolymer is as follows: wherein: r 1 、R 2 Are respectively selected from hydrogen or C1-C6 alkyl, R 1 And R 2 The same or different; r 3 Alkyl selected from C1-C6; x, Y, Z are all positive integers. The invention also discloses a preparation method of the wet strength agent for papermaking, which comprises the following steps: mixing polyethylene polyamine and organic dibasic acid for reaction to obtain polyamide polyamine prepolymer; mixing and reacting the polyamide polyamine prepolymer with epichlorohydrin and acrylic acid/acrylate copolymer to obtain the wet strength agent. The wet strength agent for papermaking and the preparation method thereof have the advantages of production cost reduction, mild reaction, stability and controllability, difficult excessive reaction and gelation, and high solid content; the prepared wet strength agent can well improve the wet strength of paper and has high retention rate. |
| priorityDate | 2019-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.