| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0031
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2067-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-902
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2023-001 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-73927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D23-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-26 |
| filingDate |
1984-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1987-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_194ad4f3f6f6862bc350325fd5db37ca
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5cedf9e93336f379ab6fdc9c4150178a |
| publicationDate |
1987-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4659534-A |
| titleOfInvention |
Production of thin-walled cylindrical body of aromatic polyester |
| abstract |
A process for producing a thin-walled cylindrical body of an aromatic polyester, which comprises (A) heating a continuous thick-walled tubular body of an aromatic polyester by introducing it continuously into a heating zone while feeding a pressure fluid into the thick-walled tubular body, (B) expanding the heated thick-walled tubular body into a cylindrical form, and (C) continuously stretching and taking up the resulting cylindrical expanded body, while at least forming a fold-free portion in the expanded body in its longitudinal direction; and a thin-walled cylindrical body of an aromatic polyester characterized by a specific intrinsic viscosity, density, wall thickness, surface roughness (CLA), and difference of its refractive indices in the circumferential direction and in a direction perpendicular to the circumferential direction, and substantial freedom from folded marks which cannot be removed at a temperature of 80 DEG C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1655322-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2021260807-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004236063-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4831071-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11752680-B2 |
| priorityDate |
1983-10-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |