http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10251358-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 |
| filingDate | 1997-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_49041afc510edb5ee3b1313278df0b64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23e743e91e0377aafc4cc23912283151 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6855e3b0d90b2eb1bca00909dcbb3a8f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4dc4602d7167ddac0bb95aaafd018984 |
| publicationDate | 1998-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H10251358-A |
| titleOfInvention | Propylene-ethylene block copolymer |
| abstract | (57) [Problem] To provide a propylene-ethylene block copolymer excellent in rigidity and impact resistance in balance of physical properties and having high surface hardness. SOLUTION: A propylene polymer part and ethylene- A propylene-ethylene block copolymer having a propylene copolymer part. Meso-average chain length of cold xylene insoluble part (Nm) satisfies the following equation (1), and the solid viscoelasticity (δ) satisfies the following equation (3). Nm ≧ 32.5 × logω 0 −22.7 × logG 0 +189 (1) [In the dynamic melting viscoelasticity measurement of the cold xylene insoluble part, The coordinates of the intersection of the nG′-lnω curve and the lnG ″ -Inω curve are (ω 0 , G 0 ). ω is the frequency, G ′ is the storage elastic modulus, and G ″ is the loss elastic modulus. tan δ area / weight fraction of soluble part in cold xylene) ≧ 0.6 (3) [In the measurement of solid viscoelasticity at -100 to 100 ° C., a tan δ curve with respect to temperature increase was obtained, and (temperature 1 ° C.) × (tan δ = 1) is determined as an area 1 and the area enclosed by a tan δ curve at -30 to -100 ° C and a straight line connecting points of -30 ° C and -100 ° C on the curve is defined as a tan δ area. . ] |
| priorityDate | 1997-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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