http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002188087-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95585944cd76ddfb6dc33ed2a0b84403 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2314-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-0815 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 2002-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_795557484a4bcbb387e16f35d37bbc79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f24f47024d606b9cac67e5e7e5be86d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89f8bdd47300ff851ecb470ac33935c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60b9c25dd387c614d96ee78378c90857 |
| publicationDate | 2002-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2002188087-A1 |
| titleOfInvention | Ethylenic copolymer, composition containing said copolymer, and ethylenic copolymer film |
| abstract | Disclosed is an ethylenic copolymer having Mw/Mn, as measured through GPC, of from 1.5 to 4, Mw of from 3,000 to 1,000,000, and a resin density of from 0.85 and 0.95 g/cm 3 . The relationship between the half width at the half maximum [W/2] of the curve as obtained through Gaussian distribution approximation relative to the essential peak of the compositional distribution curve of the copolymer obtained through temperature rising elution fractionation analysis, and the average, n, of short-chain branches existing in the copolymer satisfies an equation, 0.704+0.147n ≦W/2≦−0.055+0.577n. Also disclosed is an ethylenic copolymer having Mw/Mn of from 1.5 to 4 and a resin density of from 0.85 and 0.95 g/cm 3 . The tear strength (TS, kgf/cm) of the copolymer satisfies equations, n TS ≧131.5−155×log[{( B+C+D )/ A }+0.1], n and n 0.1≦( B+C+D )/ A ≦1. n In these, A indicates the area of the range surrounded by the curve as obtained through the Gaussian distribution approximation, and the base line of the compositional distribution curve; B indicates the area of the range surrounded by the compositional distribution curve, the curve obtained through Gaussian distribution approximation, and the base line, the area of B being in the lower elution temperature side and being at an elution temperature higher than 32° C., while C indicates the area of the range surrounded by these three and falling in the higher elution temperature side; and D indicates the area of the range surrounded by the compositional distribution curve and the base line and falling within at an elution temperature range between 25 and 32° C. Further disclosed is an ethylenic copolymer composition comprising any of such ethylenic copolymers. The ethylenic copolymers have a narrow molecular weight distribution and a narrow branching degree distribution while having a controlled compositional distribution profile, and therefore can be formed into films having good mechanical characteristics including tear strength and impact strength and having good heat-sealing properties and high ESCR (environmental stress crack resistance). |
| priorityDate | 1997-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 587.