| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4f6ee64e420ffdad3e2fb360c93302a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 |
| filingDate |
2008-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2015-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3cd03020fb42f419e69047b1f48f94ac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_673632d9c409327d64843ef5c2a9b2b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5350a1c02878c23b7710f2cf5f71d563
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d8548892669ec7a2e9976764a6c32e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d98671aa7041f7a4c9cd5d92baac242
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa69212772b79322beb9c35bf4d06695
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a1a7cbd71945194fd5eb8db78a60fdc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_861ba8c494de9b0bd3e9d5c01160d293 |
| publicationDate |
2015-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2692614-C |
| titleOfInvention |
Method for producing butanediol dimethacrylates |
| abstract |
The present invention relates to a process for preparing butanediol dimethacrylates, which comprises the transesterification of butanediol with an ester of methacrylic acid in the presence of catalysts, wherein a combination comprising at least one lithium compound and at least one calcium compound is used as catalyst, at least one of the compounds of lithium and/or of calcium is an oxide, a hydroxide, an alkoxide having from 1 to 4 carbon atoms or a carboxylate having from 1 to 4 carbon atoms and at least part of the reaction is carried out in the presence of an effective amount of water. The process of the invention makes a particularly inexpensive preparation of butanediol dimethacrylates having a very high purity possible. |
| priorityDate |
2007-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |