http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0042985-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F279-02 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F279-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-00 |
| filingDate | 1981-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_469a4fcc053e5f0b0cbbd465cec57573 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a6d5fc276b5f05592f32cf6a50a7043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28d40dc4a24dcc3fbf245574717b03df http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23e2b7c31cfc18616ab3a80e55e6a83b |
| publicationDate | 1982-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0042985-A2 |
| titleOfInvention | Process for the preparation of vinylaromatic polymers modified by rubbers |
| abstract | The invention relates to a process for the continuous production of rubber-modified polymers of vinyl aromatics, which is carried out in bulk or solution in more than 2 reaction zones. Here, a monomeric aromatic vinyl compound and a rubber-like polymer, in a proportion of 3 to 16% by weight, based on monomers (s), in the absence of radical initiators, but in the presence of mercaptans as chain transfer agents at temperatures of 80 to 180 ° C. a first reaction zone with stirring to a maximum conversion, Umax, based on monomer, polymerized that the relationship is sufficient [K = amount of rubber in% by weight, based on monomers (s)].n n n In a second reaction zone, polymerization is continued with conversions up to about 50% by weight and then a chain transfer agent is introduced in amounts of 0.01 to 0.2% by weight, based on vinyl aromatic monomer, with a conversion of up to less than 85% by weight, based on monomers (s), is optionally further polymerized in more than one reaction zone. The polymer is freed from vinylaromatic monomers and, if appropriate, from the solvent in a degassing zone, the latter being returned to the process.n n n The claimed process allows products with a good gloss and, at the same time, a good mechanical level to be produced, which can be used in conventional fields of application. |
| priorityDate | 1980-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.