MONOREACTOR SYNTHESIS OF NANOPARTICLES AND LIQUID POLYMER FOR FIELDS OF CAOUTCHOUC APPLICATION Russian patent published in 2013 - IPC B82B3/00 C08F279/02 C08F236/10 C08L53/02 B60C1/00 

FIELD: chemistry.

SUBSTANCE: method of obtaining in solvent mixture of nanoparticles and liquid polymer, synthesised in one reactor, is described, with method containing the following stages: (a) carrying out either polymerisation of first monomer until liquid polymer is obtained, or copolymerisation of first monomer and second monomer until liquid polymer is obtained, in reaction container, where first monomer is selected from group, consisting of C₄-C₈ -conjugated dienes and their mixtures, and second monomer is selected from group, consisting of styrene, α-methylstyrene, 1-vinylnaphthaline, 2-vinylnaphthaline, 1-α-methylvinylnaphthaline, 2-α-methylvinylnaphthaline, vinyltoluol, methoxystyrene, tert-butoxystyrene and their alkyl, cycloalkyl, aryl, alkaryl and aralkyl derivatives, in which total number of carbon atoms in derivative in not larger than 18, or any di- or tri-substituted aromatic hydrocarbons and their mixtures; (b) partial stop of polymerisation by application of agent for inhibition of active centres; and (c) addition of polyfunctional comonomer, monovinylaromatic monomer and optional loading of polymerisation initiator; where said nanoparticles have core, which includes monovinylaromatic monomer, and shell, including first monomer or first and second monomer, with nanoparticles being formed as a result of self-aggregation into micelles and cross-linking of micelles by polyfunctional comonomer. Also described is method of obtaining caoutchouc composition, with method including: obtaining described above mixture of nanoparticles and liquid polymer and adding mixture to caoutchouc composition. Method of tyre manufacturing with application of nanoparticles and liquid polymer is described, with method including: obtaining described above mixture of nanoparticles and liquid polymer, adding mixture to caoutchouc composition; formation of tyre tread from caoutchouc composition; and constructing tyre with application of said tread. Composition of substances for application on caoutchouc composition, obtained in accordance with method described above, is described. Said composition, in fact, consists of: micellar nanoparticles, belonging to "core-shell" type, where nanoparticles are formed as a result of self-aggregation into micelles and cross-linking of micelles by polyfunctional comonomer; and liquid polymer, which is characterised by Mw value in the range from approximately 10000 to approximately 120000; where nanoparticles are dispersed and mixed inside liquid polymer.

EFFECT: simplification of method of obtaining mixture of nanoparticles and liquid polymer and their further processing.

22 cl, 2 dwg, 4 tbl, 7 ex