http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56143238-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C49-00 |
| filingDate | 1980-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_33bf27aeb37f49a4f7d5fd91a320a7c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed167190b8ee052ce659c67820dca502 |
| publicationDate | 1981-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56143238-A |
| titleOfInvention | Oriented polyester film |
| abstract | PURPOSE:To provide the titled film which has a high polymn. degree and low extractability of low-molecular compd. from the film surface and exhibits less occurrence of drop out in a magnetic tape, by incorporating a bis-oxazoline into a linear satd. polyester. CONSTITUTION:A mixt. consisting of a substantially linear satd. polyester (A) (e.g. a satd. polyester derived from terephthalic acid and tetramethylene glycol) and 0.1-10wt% (based on the weight of the component A) bis-oxazoline of the formula (wherein R1-R8 are each H, a hydrocarbon group) such as 2,2'-bis(2-oxazoline or 2,2'-bis(4,4'-dimethyl-2-oxazoline), is melt-extruded under heating at a temp. of from the m.p. of the component A to 320 deg.C into film which is then stretched to produce an oriented polyester film having an intrinsic viscosity of 0.55 or above. The extractability of low-molecular compd. from this film with xylene solvent is not more than 1wt%. Absorbance at a wavelength of 248nm is 0.30 or below, when the soln. of low-molecular compd. extracted from the film surface with chloroform solvent is measured with a spectrophotometer. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5025052-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010031174-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5753553-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6365707-B2 |
| priorityDate | 1980-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.