http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AR-019540-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-797 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-2835 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C267-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C271-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-08 |
| filingDate | 1999-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2002-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | AR-019540-A1 |
| titleOfInvention | CARBODIIMIDES BASED ON 1,3-BIS- (1-METHYL-1-ISOCIANATE-ETHYL) BENZENE, PROCEDURE FOR PREPARATION, MIXTURES THAT UNDERSTAND THEM, USE, PROCEDURE FOR THE PREPARATION OF POLYURETHANS IN THE PRESENCE OF SUCH CARBOIDIMID AND POLYURETHYLENE OBJECTS . |
| abstract | Carbodiimides based on 1,3-bis- (1-methyl-1-isocyanate-ethyl) -benzene that respond to the following structure 1 containing 12 to 40% by weight of ethylene oxide units (-CH2-CH2-O -), referring to the weight of carbodiimides. Methods for the preparation of these carboxyimides and mixtures containing these carboxyimides and compounds having ester structures. Carbodiimides can be obtained by converting 1,3-bis- (1-methyl-1-isocyanate-ethyl) -benzene in the presence of catalysts with carbon dioxide separation, carbodiimides and then reacting the carbodiimide having isoisocyanate groups with at least a reactive compound with respect to isocyanates (i) having ethylene oxide units (-CH2-CH2-O-). The reaction between the NCO groups of the carbodiimide having isocyanate groups and the reactive groups with respect to isocyanate is generally from 10: 1 to 0.2: 1, preferably 5: 1 to 0.5: 1, more preferably 1: 1 at 0.5: 1, especially 1: 1. Alternatively, they can be obtained by reacting 1,3-bis- (1-methyl-1-isocyanate-ethyl) -benzene with at least one compound (i) having ethylene oxide units (-CH2-CH2-O -), being the ratio between the isocyanate groups used and reactive groups with respect to isocyanates, at least 2: 1 and then the reaction product having isocyanate groups is converted in the presence of catalysts with carbon dioxide release. Process for the preparation of polyurethanes by conversion of isocyanates, reactive compounds with respect to isocyanates, blowing agents and possibly catalysts, auxiliary and / or additional substances, where the conversion is carried out in the presence of the carbodiimides described. Organic carbodiimides are known and are used as stabilizers against the hydrolytic degradation of compounds containing ester groups, e.g. polyconditioning and polyconditioning products such as polyurethanes and as crosslinkers for aqueous crosslinks. |
| priorityDate | 1998-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.