http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0525231-A
Outgoing Links
Predicate | Object |
---|---|
assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_325e8f74339359cd24e45eb790ace68f |
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/C08F4-654 |
filingDate | 1991-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd21055ad574aafbd5e1ea960f212a79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a301b084e3cd7b0791e996aadee6f7a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8edc7ea535cbb04409213d72e3e0558f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37a1f42693e6660c22697f376bb27bbc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6c501630cd2f4997e4fcc8a47c84baf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0b41a1f1d198236edfb0bcd8e63bf83 |
publicationDate | 1993-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | JP-H0525231-A |
titleOfInvention | Method for producing propylene-ethylene block copolymer |
abstract | (57) [Summary] (Modified) [Objective] To provide a method for producing a propylene-ethylene block copolymer having an excellent balance of rigidity and gloss. [Structure] Using a polymerization catalyst consisting of the following 1) to 3), A process for producing a block copolymer, which comprises a step of producing a propylene-ethylene copolymer having an ethylene content of 0.01 to 10% by weight and a step of producing a propylene-ethylene copolymer having an ethylene content of 30 to 95% by weight. 1) a solid catalyst component containing metal oxide, magnesium, titanium, halogen and an electron donating compound as essential components, 2) an organometallic compound and 3) a general formula [However, R 1 and R 2 are the same or different hydrocarbon groups having 1 to 10 carbon atoms, OR 4 , OSiR 5 3 or SiR 6 3 , R 3 is a divalent hydrocarbon group having 1 to 10 carbon atoms, R 3 4 , R 5 and R 6 are each a hydrocarbon group having 1 to 10 carbon atoms. ] The organosilicon compound represented by these. |
priorityDate | 1991-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 504.