| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2bb724dd58cbb2a73b244e79b0c9e42 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G12-427 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-00 |
| filingDate |
1976-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_29198db7dc65b0fe5d0329fd76ccbd92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_40a8f514c91271e527bbf2a5090a0b01 |
| publicationDate |
1977-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4065267-A |
| titleOfInvention |
Manufacture of alkylated urea or melamine formaldehyde with in-process alcohol recovery |
| abstract |
This invention relates to an improved apparatus for preparing alkylated urea or melamine formaldehyde resins from alcohols having a boiling point higher than water, which apparatus permits the return of substantially dry alcohol from the water distillation system to the reactor. n The apparatus comprises a reactor connected to a fractionating column, having a rectifying section above a stripping section, at the junction of the rectifying section and the stripping section; a reboiler at the bottom of the fractionating column, which returns substantially dry alcohol to the reactor; a condenser which condenses the alcohol-water vapor mixture exiting the rectifying section of the column; and a separator device which separates the condensed mixture into an alcohol phase and a water phase, and from which the alcohol phase is returned to the top portion of the column. n Use of the apparatus of the invention results in a substantial reduction in reaction times. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5098525-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S61243816-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110327646-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100495335-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0362807-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0362807-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5075083-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110327646-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108525338-A |
| priorityDate |
1975-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |