http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1476500-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d2c475434fc4a757760575500f7416c4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 1974-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1476500-A |
| titleOfInvention | Method of preparing liquid homopolymers and copolymers having terminal halogen atoms |
| abstract | 1476500 Halogen-terminated diene polymers E N BARANTSEVICH, B N PRONIN, I B BELOV A F KALAUS N K BERESNEVA and A P TROITSKY 6 Sept 1974 [18 Sept 1973] 38994/74 Heading C3P Liquid homopolymer or copolymer having terminal halogen atoms (of use in the rubber industry in the production, for example, of sealing, coating and moulding compositions) is prepared by polymerising a conjugated diene, either alone or together with vinyl monomer, in the presence of initiator which is an azonitrile compound of formula wherein n is an integer of from 2 to 6 and X is halogen, for example wherein n is 2 and X is bromine. Preferred conjugated dienes have from 4 to 6 carbon atoms. Suitable vinyl monomers are compounds having polar groups, for example styrene, acrylonitrile and methacrylates, and preferably are used in amount not exceeding 10 parts by weight per 100 parts by weight of diene. The azonitrile compound may be used in amount of from 3 to 9 parts by weight per 100 parts by weight of total monomer to be polymerized. The polymerization may be effected in an organic solvent medium, for example acetone or benzene. The liquid polymer may be cured by a tertiary polyfunctional amine, for example fully methylated triethylenetetramine or pentaethylenehexamine. As exemplified, 4,4-azobis (4-cyano-l-bromo-npentane) is used as initiator in the homopolymerization of butadiene-1,3 in acetone (Examples 1, 3, 6 and 7) or in benzene (Example 4) and of 2-methyl-butadiene-1,3 in acetone (Example 2) and in the copolymerization of butadiene-1,3 and acrylonitrile in acetone (Example 5), the resulting oligomers being cured by tertiary polyfunctional amines in non-extended and carbon black-extended systems. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9243100-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2749579-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9745394-B2 |
| priorityDate | 1973-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.