| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C215-90 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C215-90 |
| filingDate |
1990-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1991-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d47b2f0c845590f3b1f5dd42136f78ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e14f26d1ed26eac94745d204d20e7434
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d557591c0735c6353adf18d5a0734ccc |
| publicationDate |
1991-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5077435-A |
| titleOfInvention |
Preparation of halohydroxypropyl-trialkylammonium halides |
| abstract |
The present invention is a process for producing halohydroxypropyltrialkylammonium halides by reacting a trialkylamine salt with an epihalohydrin, the improvement comprising using 1,3-dihalo-2-propanol as a cosolvent. Using that cosolvent reduces the amount of diquaternary, dichloropropanol, and epoxy by-products formed. The cosolvent is preferably separated from the reaction mixture and recycled for use with additional trialkylamine salt and epihalohydrin. The process is particularly useful in preparing chlorohydroxypropyltrimethylammonium chloride. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5463127-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008058111-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008058111-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022011792-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103204946-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112010766-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103204946-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6084131-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6436237-B1 |
| priorityDate |
1990-09-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |