http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3222073-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70390d8001e613e5ba202b828ff6ed6a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F14-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F14-06 |
| filingDate | 1982-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_96f79c4121f00ed30c2e248b74094671 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_904a70a509738aa7190d85610acbd60f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_339dc305e898738422a0e2bddbab88df |
| publicationDate | 1983-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-3222073-A1 |
| titleOfInvention | METHOD FOR PRODUCING HOMO- AND / OR COPOLYMERISATES OF VINYL CHLORIDE |
| abstract | The invention relates to a process for the preparation of homopolymers and/or copolymers of vinyl chloride with olefinically unsaturated comonomers which have only a low content of defective particles, so-called fish eyes, or none at all, by free-radical suspension homopolymerisation and/or copolymerisation at from 5 to 80 DEG C, in general in a suspension using assistants. According to the invention, the process is carried out by exposing the reaction space, before the starting materials are added or at least before the polymerisation initiator or an initiator mixture is employed, to the action of at least one polymerisation inhibitor and/or at least one antioxidant, i.e. phenols, sulphur dioxide, hydrogen sulphites and the like. These substances are then preferably removed from the reaction medium, the necessary reaction components are added, the reaction conditions are established and the polymerisation and/or copolymerisation of vinyl chloride is then carried out. When the polymerisation is complete, inhibitors or antioxidants are added, if necessary, and the suspension is worked up. |
| priorityDate | 1981-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.