http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113880971-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_65dbbebfaa1f7aa2afc2ea42707bf918 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F16-06 |
| filingDate | 2021-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_791fed0653bbb5b4f06515d1f2daa38b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_669f693d0c5778331b5dadb7e3fbeb21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9fceabea0aa68e631c0cd66b0ea90c36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd112b1ee2e3460e0139d4d31da0ca30 |
| publicationDate | 2022-01-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113880971-A |
| titleOfInvention | Preparation method of yellowing-resistant polyvinyl butyral resin |
| abstract | The invention discloses a preparation method of yellowing-resistant polyvinyl butyral resin, which is characterized by comprising the following steps: adding polyvinyl alcohol and water into a dissolving kettle, heating to 90-98 ℃, stirring for dissolving, filtering, cooling to 35-50 ℃, adding n-butyl aldehyde, and stirring to obtain a polyvinyl alcohol/n-butyl aldehyde mixed solution; respectively putting the polyvinyl alcohol/n-butyraldehyde mixed solution and a hydrochloric acid aqueous solution into a tubular reactor for reaction at the temperature of 35-50 ℃, then transferring the materials into an aging kettle at the temperature of 35-50 ℃ for reaction, then adding the hydrochloric acid aqueous solution, and heating to 55-70 ℃ for reaction; adding a sodium hydroxide aqueous solution to ensure that the pH of the reaction solution is =10, filtering, washing the solid with water, and drying to obtain the yellowing-resistant polyvinyl butyral resin; the yellowing-resistant polyvinyl butyral resin prepared by the invention can not be yellow after being baked for 1 hour in an electric heating constant-temperature blast drying oven at the temperature of 200 ℃, and is suitable for automobile windshields, building safety glass and the like. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115838485-A |
| priorityDate | 2021-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.