http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009247689-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b99b9c0cfbbaee90bf68a47f9911eae |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-0016 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L25-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-013 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L53-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L53-02 |
| filingDate | 2007-09-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6a0349a6e13cd0711e8f6e90b2ced41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46e1aba59350d74a593084f3046bf7a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c5b1cde887fae54fa39d56428690259 |
| publicationDate | 2009-10-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2009247689-A1 |
| titleOfInvention | Elastic film grade thermoplastic polymer compositions having improved elastic performance |
| abstract | The present invention provides an improved block copolymer composition for extruding films having excellent stress relaxation and increased retained tension or load at elevated temperatures, as well as a film cast from this composition. The composition is comprised of (a) 100 parts by weight of a mixture of two or more hydrogenated styrenic block copolymers (HSBC's) having at least two polystyrene end-blocks and a mid-block of a polymerized diene wherein at least 80 mol % of the residual unsaturation has been hydrogenated, wherein HSBC #1 has an apparent number average molecular weight between 35,000 and 90,000 and a polystyrene content between 15 and 40 percent by weight, wherein HSBC #2 has an apparent number average molecular weight between 95,000 and 150,000 and a polystyrene content between 15 and 40 percent by weight, wherein the ration w/w of HSBC #1 versus HSBC #2 is in the range of from 8:1 to 1:8, (b) from 10 to 50 parts by weight per 100 parts by weight of polymer (phr) of a a medium molecular weight polystyrene (2) or a mixture of a low molecular weight polystyrene (1) and a medium molecular weight polystyrene (2), wherein PS (1) has a molecular weight in the range of 500 to 4,000 and PS(2) has a molecular weight in the range of 20,000 to 150,000 and wherein PS(1) and PS(2) are used in a weight ratio of 1:5 to 5:1, (c) from 3 to 50 phr of a filler, and (d) from 30 to 70 phr of a softening agent. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010099784-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9260578-B2 |
| priorityDate | 2006-09-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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