| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad2cd796f8c4dcb425ddcc68707d3444 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2250-244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0017
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2009-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2007-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0089
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2307-736
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2067-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2067-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2307-558
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2307-518
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B2307-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-143
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D7-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-14 |
| filingDate |
2020-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52e0555e18fd4b64d435ee03e9fa20de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57b83dc5bc56c9f4fe05bb081f03a1d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2fb80591eeed13c06bd715596c0da3f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0855ab5e4d2436f3bdb43a5aa9763fb |
| publicationDate |
2022-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022403124-A1 |
| titleOfInvention |
Biaxially oriented polyester film and method for producing same |
| abstract |
The invention provides a biaxially oriented polyester film having excellent impact strength and heat resistance and a method for producing same. The method comprises (A) melt-extruding a composition comprising polyester resin for which Tc−(Tg+Tm)/2 is 25−30° C. to obtain unstretched polyester resin composition sheet, which (B) is heated at Tg+5 (° C.) to Tg+40 (° C.) of the polyester resin and stretched in the machine direction at 2×-6× to obtain uniaxially oriented polyester resin composition film, which (C) is heated at Tc−46 (° C.) to Tc+25 (° C.) of the polyester resin and stretched in the transverse direction at 4×−8× to obtain biaxially oriented polyester resin composition film, which (D) undergoes relaxation at 3%-20% in the transverse direction as heated at Tm−40 (° C.) to Tm−5 (° C.) of the polyester resin. |
| priorityDate |
2019-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |