http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020023654-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33950b90dba37baba0a14b224f586641 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L77-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-18 |
| filingDate | 2001-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_159335efabae4a66377700574fbb5b0e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7badf5b8f702152edbf419f1b6c8959 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61f73342e56da67739e413c919f1f56d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6adaea9cf71a4242a69452a26a74d515 |
| publicationDate | 2002-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20020023654-A |
| titleOfInvention | Process for the anionic polymerization of lactams |
| abstract | The present invention relates to a novel anionic polymerization method of lactam, in which:n n n (a) a catalyst capable of producing (i) lactamate and (ii) a formula R1-NH-CO-R2, wherein R1 can be substituted with a R3-CO-NH- or R3-O- radical, R 1, R 2 and R 3 represent aryl, alkyl or cycloalkyl radicals;n n n (a1) cooling the solution from step (a), optionally to a solid state in a separable form,n n n (a2) optionally reheating the product from step (a1) to a temperature below the polymerization temperature of the lactam,n n n (a3) optionally, reheating the product from step (a1) to maintain at a temperature between the melting point of the lactam to greater than 15 ° C.,n n n (b) The product from any of steps (a1), (a2) or (a3) is introduced into the mixing apparatus and then heated to a temperature sufficient to cause bulk polymerization of the lactam.n n n According to a second aspect of the invention, a molten lactam that does not contain a mixture of catalyst and modifier is also introduced into step (b), ie the solution from step (a) is a masterbatch.n n n According to a third aspect of the invention, the polymerization of lactams is carried out in the presence of at least one polymer (A).n n n According to a fourth aspect of the invention, the polymerization of lactams is carried out in the presence of one or more fillers, for example glass fibers.n n n According to a second embodiment of the invention, step (b) is sufficient to introduce the product from any of step (a1), (a2) or (a3) into the template, and then to bulk polymerization of the lactam takes place. Replaced by step (b1) of heating to temperature. Thus, polyamide items are obtained directly (the technique indicated by the "RIM" technique). This second embodiment may also be carried out in several forms as described above. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10538624-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019107758-A1 |
| priorityDate | 2000-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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