http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1124948-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43867d322e887ce7440387bdf2c956b3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-60 |
| filingDate | 1979-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2394289c064d00c7d3a8a7b84e674235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d256e4fb9da729a2f90bc7f74dea481 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_200374cc36802340dede3af4ff20db9b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61230505e4994e3ac42e1874aaea31dc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4fd775c6f647f050698cf213f7937568 |
| publicationDate | 1982-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1124948-A |
| titleOfInvention | Process for preparing a copolymer |
| abstract | ABSTRACT OF THE DISCLOSURE A process is provided herein for preparing an ethylene-?-olefin copolymer having a density of 0.850 to 0.945. In the process, ethylene and 1 to 40 mol% thereof of an ?-olefin having 5 to 18 carbon atoms are co-polymerized in a substantially solvent-free vapour phase condition and in the presence of a catalyst comprising a solid substance and an organo-aluminum compound, in which the solid substance contains magnesium and at least one of titanium and vanadium. The copolymer so produced is superior in transparency, appearance and gloss, and its flexibility and elasticity are excellent both at low temperatures and at room temperatures. Despite such an excellent flexibility, the resulting polymer exhibits equal or even superior strength to that of ordinary polyolefins. The copolymer is very superior in weathering- and chemicals-resistance, as well as having super-ior electrical characteristics, e g , dielectric loss, break-down voltage and resistivity. The copolymer exhibits very superior characteristics with respect to resistance to impact and to environmental stress cracking. The copolymer can be formed into films, sheets, hollow containers, electric wires and various other products by known forming methods, e.g., extrusion molding, blow molding, injection molding, press forming and vacuum forming. Because of its excellent strength, elongation, transparency, anti-blocking property, heat-sealing property and flexibility, it provides good films. Because of its low hexane extract, it can be safely used as a food packing film. Because of its transparency, stiffness and resistance to environ-mental stress cracking, it is also suited to blow molding. Because of its excellent electrical characteristics and easy application to extrusion molding, it can be used as an insulator for electric wires. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7867588-B2 |
| priorityDate | 1978-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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