http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1070897-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F12-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F212-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F12-08 |
| filingDate | 1975-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1980-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d72b6d7a026e6428eb875000416c9c27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d0d61620a26c2ae03c6f3a2bb034e20 |
| publicationDate | 1980-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1070897-A |
| titleOfInvention | Continuous solvent-free polymerisation of vinyl derivatives |
| abstract | Abstract Or the Disclosure A process for the polymerisation of aromatic vinyl compounds and their copolymerisation with alkyl esters or nitriles of acry-lic and/or methacrylic acid, wherein 1) in a first stage, the monomer or monomers is or are conti-nuously introduced at excess pressure into a first reaction zone and polymerised there to a degree of conversion of 5 -40 % by weight at a temperature of from 80 to 170°C; 2) in a second stage, the reaction mixture is conducted at con-stant pressure into a second reaction zone designed for con-ducting highly viscous melts, the mixture flowing through this reaction zone at a rate which is 1.1 to 5 times the in-trinsic rate, and polymerised there to a degree of conversion of 40 to 95% at temperatures of from 120 to 250°C, the ex-cess pressure in the first and second stage being chosen so that the monomer or monomers is or are liquid, and the poly-mer is continuously removed from this zone with release of the pressure; and 3) in a third stage, unreacted monomer is removed by evaporation, the pressure being chosen so that the monomer or monomers is or are evaporated, and the polymer is discharged as a melt. |
| priorityDate | 1974-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.