| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_46ffc67cd29dd51dbd0bc0e335dd3994 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-28 |
| filingDate |
1995-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6b55df26a4d94564e136dff09bf1f46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88247ac1cced0a21456848d3ba966dc8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fe248ca86d816b1ae01a2b95fb0eb57 |
| publicationDate |
2003-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
MY-115946-A |
| titleOfInvention |
Production of polyisobutenes |
| abstract |
THIS INVENTION RELATES TO A METHOD OF PRODUCING POLYISOBUTENES FROM A FEEDSTOCK COMPRISING A MIXTURE OF C4 HYDROCARBONS AND CONTAINING ISOBUTENE AND AT LEAST 5BY WEIGHT OF 1-BUTENE USING A CATIONIC POLYMERISATION CATALYST, CHARACTERISED IN THAT PRIOR TO POLYMERISATION, THE FEEDSTOCK IS SUBJECTED TO A PRE-TREATMENT STEP IN ORDER TO REDUCE THE 1-BUTENE CONTENT THEREOF TO A LEVEL WHICH IS AT LEAST 20OWER THAN THAT OF THE 1-BUTENE CONTENT IN THE INITIAL MIXED C4 HYDROCARBON FEEDSTOCK PRIOR TO THE PRE-TREATMENT THEREOF AND THE POLYISOBUTENE SO FORMED IS (A) VERY HIGH IN ITS VINYLIDENE GROUP CONTENT AND (B) SUBSTANTIALLY FREE OF HALOGEN. |
| priorityDate |
1994-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |