http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020063289-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F255-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F255-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-28 |
| filingDate | 2001-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2002-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20020063289-A |
| titleOfInvention | Making polyolefin graft copolymers with low molecular weight side chains using a polymeric peroxide as an initiator |
| abstract | The present inventionn n n Irradiating the propylene polymer material in the absence of oxygen (1),n n n A controlled amount of oxygen was added to the irradiated propylene polymer material such that the polymer was exposed to greater than 0.004% and less than 15% by volume of oxygen at a temperature of 40 to 40 ° C., containing more than 1 mmol per kg of propylene polymer material. Producing an oxidized propylene polymer material (2),n n n Optionally (3) heating the oxidized propylene polymer material to a softening point of the polymer at 80 ° C., in a non-oxidizing atmosphere,n n n One or more additives added to control the molecular weight of the polymerized grafting monomer side chain [the additives include one or more hydroxylamine derivative polymerization initiators (a) and one or more thio-, nitro- or halogen-substituted aliphatic and aromatic compounds or Selected from the group consisting of aliphatic and aromatic phosphine derivatives (b)], in a non-oxidizing atmosphere, treating the oxidized propylene polymer material with one or more grafting monomers which can be polymerized by free radicals. (4) andn n n A method for producing a graft copolymer having a low molecular weight side chain, comprising the step (5) of inactivating residual free radicals in the obtained grafted propylene polymer material and removing unreacted vinyl monomers from the propylene polymer material. . |
| priorityDate | 2000-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 85.