02-01-2020 дата публикации
Номер: US20200002516A1
An elastomeric polymer of formula 1 is described, 2. An elastomeric polymer according to claim 1 , wherein the at least one conjugated diene is selected from 1 claim 1 ,3-butadiene claim 1 , 2-(C-Calkyl)-1 claim 1 ,3-butadiene claim 1 , especially isoprene (2-methyl-1 claim 1 ,3-butadiene) claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , 1 claim 1 ,3-pentadiene claim 1 , 2 claim 1 ,4-hexadiene claim 1 , 1 claim 1 ,3-hexadiene claim 1 , 1 claim 1 ,3-heptadiene claim 1 , 1 claim 1 ,3-octadiene claim 1 , 2-methyl-2 claim 1 ,4-pentadiene claim 1 , cyclopentadiene and 1 claim 1 ,3-cyclooctadiene.3. An elastomeric polymer according to claim 2 , wherein the conjugated diene is 1 claim 2 ,3-butadiene.4. The elastomeric polymer according to claim 1 , wherein the at least one conjugated diene is used in a total amount of 30 to 100 wt. % based on the total amount of monomers.5. The elastomeric polymer according to claim 1 , wherein the vinylaromatic compound is selected from styrene claim 1 , C-Calkyl-substituted styrene claim 1 , especially 2-methyl styrene claim 1 , 3-methyl styrene claim 1 , 4-methyl styrene claim 1 , 2 claim 1 ,4-dimethyl styrene claim 1 , 2 claim 1 ,4 claim 1 ,6-trimethyl styrene claim 1 , α-methyl styrene claim 1 , 2 claim 1 ,4-diisopropyl styrene and 4-tert-butyl styrene claim 1 , stilbene claim 1 , vinylbenzyl dimethyl amine claim 1 , (4-vinylbenzyl)-dimethylaminoethyl ether claim 1 , N claim 1 ,N-dimethylaminoethyl styrene claim 1 , tert-butoxystyrene claim 1 , vinyl pyridine and divinylaromatic compounds.6. The elastomeric polymer according to claim 5 , wherein the vinylaromatic compound is styrene.7. The elastomeric polymer according to claim 1 , wherein the one or more vinylaromatic compounds may be used in a total amount of up to 5 to 70 wt. % based on the total amount of monomers claim 1 , provided the di- claim 1 , tri- and higher vinylaromatic compounds are used in a total amount of not more than 1 wt. % based on the total ...
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