http://rdf.ncbi.nlm.nih.gov/pubchem/patent/IT-1021384-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D- |
| filingDate | 1974-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1978-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1978-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | IT-1021384-B |
| titleOfInvention | POLYESTER FILM WITH SINGLE-AXIAL ORIENTATION SUBJECTED TO POST HEAT TREATMENT AND PROCE DIMENTO TO MANUFACTURE IT |
| abstract | A monoaxially oriented polyester film, which has been subjected to heat after-treatment, possesses the following features: the transmission diffraction pattern of the wide-angle X-ray diffraction of the film is a diffuser halo; when the film, held at a specific width and length, is subjected to a temp. rise from ambient to 160 degrees C at 10 degrees per minute and then held at 160 degrees C for 30 mins., four peaks are obtd. with azimuthal sensing of the (100) diffraction in the transmission pattern and, when readings are taken in the monoaxially oriented direction of the film coinciding with the meridional direction of the pattern, two pairs of the projecting peaks, on opposite sides in relation to the equator, make an angle at the centre which contains the equatorial line and is >=35 degrees but =180 degrees; when the film is immersed for 10 secs. in water at 90 degrees C, shrinkage in the monoaxially oriented direction does not exceed 25% of the length before immersion; and the film has a density not exceeding 1.34 g.-/millilitre at 25 degrees C. The prefd. angle at the equator, as defined above, is 45-150 degrees C. The prefd. matl. is a linear polyester of the polyethylene terephthalate type, contg. >=85 mol. % of ethylene terephthalate units. |
| priorityDate | 1974-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 14.