The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1981
Filed:
Aug. 22, 1979
Viktor P Judin, Voronezh, SU;
Valentin P Shatalov, Voronezh, SU;
Leonid V Kovtunenko, Voronezh, SU;
Valeria G Shalganova, Voronezh, SU;
Nadezhda K Kashkina, Voronezh, SU;
Lidia N Mistjukova, Voronezh, SU;
Neonila M Semenova, Voronezh, SU;
Zinaida N Korbanova, Voronezh, SU;
Ivan P Mitin, Voronezh, SU;
Vladimir V Moiseev, Voronezh, SU;
Vladimir V Kosovtsev, Voronezh, SU;
Other;
Abstract
A process for producing carbo-chain homopolymers, block- and random copolymers of conjugated dienes and vinylaromatic monomers comprising polymerization of dienes, vinyl- or di-vinylaromatic monomers or copolymerization thereof in a medium of a hydrocarbon solvent at a temperature ranging from -30.degree. to +150.degree. C. in the presence of an organolithium catalyst of the formula R(Li).sub.x, wherein R is a hydrocarbon radical or a diene polymer, x is an integer of from 1 to 4, and a modifying additive which is a compound comprising a product of interaction between a phenolamine resin and an alkali metal and having the general formula: ##STR1## wherein n is an integer of from 1 to 10;