| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-834 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C47-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C47-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C47-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12 |
| filingDate |
1981-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62eb918f5f385c295c3285e5f92142a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e867e0dfc476c27d46827d1db66084b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_959b47fc43e42b827cb6e57a1c4233ce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f8ffb0abd08bb78719760ee9b7371e8 |
| publicationDate |
1982-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-S57197132-A |
| titleOfInvention |
Manufacture of polypropylene foam |
| abstract |
PURPOSE: To manufacture the titled foam which has a uniform and fine cell structure and is highly expanded, by performing an extrusion-foaming without a crosslinking using a polypropylene which has a minimum melt tension above a certain value and a small range of fluctuation of its value. n CONSTITUTION: A polypropylene resin (e.g.; isotactic polypropylene or ethylene- propylene copolymer) of which a minimum value of melt tension at 190°C is 3g or above and a ratio of its maximum and minimum values is 2.5 or below and a nucleating agent (e.g.; CaCO 3 or talc) are fed to an extruder, melted, and plasticized. Then a volatile foaming agent (e.g.; a mixture of trichlorotrifluoroethane and dichloro-tetrafluoroethane) is fed from a cylinder of the extruder and mixed uniformly, and the mixture is extruded to a low-pressure zone under cooling to obtain the foam. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9914266-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0526647-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S60224519-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H05506875-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1072389-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100837106-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9928111-A1 |
| priorityDate |
1981-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |