http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3725369-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d8a790abb5432b50c087c33f7320024d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-44 |
| filingDate | 1971-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1973-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db7c9aa4ac65d35f1afd89cb5ac33a21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd16d00deef8b9b3dc62455f0e1046f4 |
| publicationDate | 1973-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3725369-A |
| titleOfInvention | Process for postreaction of alkali metal-active polymers with silicic compounds and dialkenyl compounds |
| abstract | The process described herein involves a method of converting relatively low molecular weight polymers of conjugated dienes prepared by alkali metal-catalyzed polymerizations, such as alkyllithium catalyzed polymerizations, and still containing active lithium or other alkali metal therein, by postreaction with a mixture of divinyl benzene and a silicon halide or ester or analogous material containing nitrogen or sulfur in place of the oxygen, to give higher molecular weight polymers having improved cold flow resistance, improved processability and green strength, etc. The improvements are much greater than can be effected by postreaction with either divinylbenzene or silicon halide, etc. individually, or by having divinyl benzene present during the polymerization. The silicon halide, etc. includes chloro, bromo and iodo compounds and can have one to four or even more halogen atoms per molecule. The postreacted products are highly branched elastomers having a broad molecular weight distribution and possessing less cold flow than the polymers from which they are produced. Surprisingly, the reaction product displays little or no tendency for cold flow even after extension with oil. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5128416-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2536752-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5266649-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0002012-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4405754-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5576395-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5554690-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5550196-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5446093-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5219938-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3010113-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4185042-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4083834-A |
| priorityDate | 1971-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 132.