http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2219016-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_132721b781afede2175d04e894580568 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-14 |
| filingDate | 1997-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d80e52e668130af8ee42ffa839bf8c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ce9545e2b1d7213374f52acebb3af7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bff27d1aec0a09bb3787e9b1fb933d3 |
| publicationDate | 1998-04-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2219016-A1 |
| titleOfInvention | Method for producing foamed board based on polystyrenic resin |
| abstract | Disclosed herein is a method for producing a foamed board based on a polystyrenic resin by foam-extruding a foamable composition obtained by incorporating a foaming agent into the polystyrenic resin, which comprises using, as a raw resin, a polystyrenic resin in which a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is at least 3.2, the z average molecular weight is at least 5 x 10 5, and the MFR is 1-10 g/10 min, or a polystyrenic resin in which a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) is lower than 3.2, the z average molecular weight is at least 5 x 10 5, and a slope value of storage elastic modulus, G' at a circular frequency, .omega. within a range of from 10-1 to 10 1 (rad/sec) falls within a range of 0.8-1.2 as determined by dynamic viscoelasticity measurement in which vibrating strain is given under temperature conditions of 220°C. |
| priorityDate | 1996-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.