http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H07145219-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-64 |
| filingDate | 1993-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70ef7e47c4182fe8c3e6e556c859608d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eac2784410d68710a3900327b86e7671 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_facb36a0b9b103b814c223b8f42f2ee3 |
| publicationDate | 1995-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H07145219-A |
| titleOfInvention | Method for producing propylene block copolymer |
| abstract | (57) [Summary] (Modified) [Purpose] A propylene block copolymer that has an excellent balance of rigidity and impact strength, and that has good moldability during processing. A method for producing a propylene block copolymer using a catalyst comprising a titanium trichloride composition and a Cl / Al molar ratio within the range of 1.01 to 1.20 and an organoaluminum chloride. Step (1) A step of homopolymerizing propylene under the condition of a polymerization temperature of 60 to 80 ° C. to produce a propylene homopolymer having an MFR of 1 to 100 g / 10 minutes in an amount of 70 to 90% by weight based on the total amount of polymerization. Step (2) Propylene and ethylene are supplied so that the propylene / ethylene reaction ratio is 20/80 to 80/20 (weight ratio) under the condition of the polymerization temperature of 50 to 70 ° C., and the propylene / ethylene random copolymer is obtained. Is produced in an amount of 10 to 30% by weight of the total polymerization amount, and the MFR of the entire block copolymer is 0.5 to 30 g. A step of performing propylene / ethylene random copolymerization so as to be / 10 minutes. |
| priorityDate | 1993-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.