| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95585944cd76ddfb6dc33ed2a0b84403 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F12-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08 |
| filingDate |
1988-02-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1994-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c53cd81138a06b31593002944dc552c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19a36645eb51548e14613665cbaf413a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93b7ea705c90731453bb5a5db78dce7f |
| publicationDate |
1994-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1329679-C |
| titleOfInvention |
Method for the preparation of a styrene-based polymer |
| abstract |
ABSTRACT OF THE DISCLOSURE Binary stereospecific styrene-based polymers composed, substantially, of the isotactic and syndiotactic structures can be prepared by the polymerization of a styrene compound in the presence of a specific catalyst system composed of (a) a solid substance containing titanium and a halogen and insoluble in hydrocarbons and (b) a reaction product of an alkyl aluminum compound, e.g., trimethyl aluminum, with water. The atomic ratio of aluminum to titanium in the catalyst system is a determinant factor for the relative predominance of a stereospecific struc-ture over the other determined by the 13C-NMR method. |
| priorityDate |
1986-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |