| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0f0bd4a4e7712a9596728080c7a211b1 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-60 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate |
1977-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d468436a52bfb6b13526318eaf4d9ef
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fffe38ab854ac174d11d1f59406cd632
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd2dbea08b6afd345cd80985e9349158 |
| publicationDate |
1979-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-2729627-A1 |
| titleOfInvention |
PROCESS FOR THE PRODUCTION OF CARBONIC ACID ESTERS |
| abstract |
Prodn. of caboxylic esters (I) comprises first reacting acids (or their anhydrides) with alcohols at mole ratio 1:2.2-2.6 at 130-200 degrees C. The reaction mixt. is then treated at 15-90 degrees C, esp. 50-70 degrees C with a stream of air contg. 5-50, esp. 15-20 mg ozone per 1. Pref. esterification is carried out in presence of a catalyst, esp. an acid or orthotitanic acid deriv. (I) are plsticisers for a wide range of polymers, O3 treatment improves prod. colour (10 units on the Hazen scale) and the quality of the recovered excess alcohol is equal to that of the starting alcohol so it can be reused. No energy-intensive distillative purifcn. is necessary and very pure starting materials are not needed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2308822-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20130041126-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101867800-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012019670-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102030637-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2308821-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102009048773-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102030637-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102009048774-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2308821-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013533263-A |
| priorityDate |
1977-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |