http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3640933-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1a8f92c331b255c0b42b829ccd90cd0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-00 |
| filingDate | 1969-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1972-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53b8f8cfb602bc5bc787f7a88453533b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_663b1f3db5e918695c98ae3ea1c47178 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fdedad4b8c1139209a6eadd3446110c4 |
| publicationDate | 1972-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3640933-A |
| titleOfInvention | Preparation of polyacrolein-sodium bisulfite adduct |
| abstract | IN THE PROCESS OF PRODUCING AN AQUEOUS BISULFITE ADDUCT USEFUL AS A PAPER MILL ADDITIVE FROM A WET CAKE OF POLYACROLEIN CONTAINING ABOUT 40-50% SOLIDS, WATER AND AT LEAST ONE C5-C8 ALKANE AS A NON-SOLVENT DILUENT PRODUCED BY HOMOPOLYMERIZING THE ACROLEIN MONOMER BY AN INVERT EMULSION TECHNIQUE, THE IMPROVEMENTS CONSISTING IN FORMING A REACTION MIX UTILIZING A BISULFITE REACTANT IN A WEIGHT RATIO OF ABOUT 1.5-2.5 PARTS PER PART OF POLYACROLEIN BASED UPON THEORETICAL MONOMER, STRIPPING THE C5-C8 ALKANE DILUENT FROM THE REACTION MIX BY AZEOTROPIC VACUUM DISTILLATION FOR A SHORT TIME PERIOD AND SUBSEQUENTLY HEATING AND REACTING THE POLYACROLEIN AND BISULFITE FOR ABOUT 1-3 HOURS AT 195-205*F. AT ATMOSPHERIC PRESSURE AND AT AN ACID PH OF 3.5-4.5 TO PRODUCE AN AQUEOUS POLYACROLEIN-BISULFITE ADDUCT AND TERMINALLY HEATING THE REACTION MIX BY VACUUM DISTILLATION FOR A SHORT-PERIOD OF TIME TO REMOVE RESIDIUM C5-C8 ALKANE DILUENT AND SO2 AND ADJUSTING THE WATER CONTENT SO THAT THE NOW DISSOLVED POLYACROLEIN (PAC) BISULFITE ADDUCT SOLIDS EQUAL ABOUT 35% OF THE TOTAL. |
| priorityDate | 1969-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.