http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4960834-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-34 |
| filingDate | 1990-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a3ab6333e80ce02c8afb38f2dc288b4 |
| publicationDate | 1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4960834-A |
| titleOfInvention | Carboxylated syndiotactic 1,2-polybutadiene |
| abstract | Syndiotactic 1,2-polybutadiene can be blended with various rubbers in order to improve the properties thereof. For instance, syndiotactic 1,2-polybutadiene can be blended with rubbers utilized in making tire treads in order to improve the heat build-up and wear characteristics of tires. The interaction and adhesion between syndiotactic 1,2-polybutadiene and rubbers can be improved by carboxylating the syndiotactic 1,2-polybutadiene. The presence of carboxylic acid groups on the syndiotactic 1,2-polybutadiene also greatly improves interaction with fillers commonly utilized in rubber compounding, such as carbon black. This invention discloses a process whereby syndiotactic 1,2-polybutadiene can be easily and inexpensively carboxylated. This invention more specifically discloses a method for preparing carboxylated syndiotactic 1,2-polybutadiene which comprises: (1) reacting syndiotactic 1,2-polybutadiene with hydrogen and carbon monoxide in an organic medium to produce formyl syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene is in the form of small particles having a particle size of less than about 250 microns which are suspended in the organic medium; and (2) reacting the formyl syndiotactic 1,2-polybutadiene with oxygen to produce the carboxylated syndiotactic 1,2-polybutadiene. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5207847-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008306215-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5753780-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6020441-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5753365-A |
| priorityDate | 1988-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.