| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-02 |
| filingDate |
1977-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8fd31a6e7532c89ef842b6e3ab8564ad
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41c5bc93262987ccb4bbb5e7e7b73e7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_626b67b8b3df56e6e4eae6e6ea4a94bc |
| publicationDate |
1979-05-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4156075-A |
| titleOfInvention |
Two step polyolefin catalyst deactivation |
| abstract |
In a two step process for preparing polymeric material wherein said polymeric material is formed by polymerizing alpha-monoolefins in the presence of a halogen-containing polymerization catalyst that leaves corrosive halogen-containing catalyst residues in said polymeric material, the improvement which comprises contacting said polymeric material containing corrosive catalyst residues with steam, air and nitrogen at a temperature where the polymeric material is in a fluid or liquid state and thereafter treating said steam-air-nitrogen treated molten polymer with alumina. The polymeric material treated with the two step catalyst deactivation process had good color, low chlorides and low volatiles. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009152169-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5276135-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4801683-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10174228-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4314053-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7638597-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4634744-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007282074-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5789501-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5663250-A |
| priorityDate |
1977-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |