Title:
PROCESS FOR PREPARING FUNCTIONALIZED DIENE (CO) POLYMERS BY USING INITIATOR
Document Type and Number:
WIPO Patent Application WO/2016/108719
Kind Code:
A8
Abstract:
The invention relates to the field of production of synthetic rubbers, in particular to an anionic (co-polymerization initiator, a method for preparing thereof and a method for preparing functionalized diene (co)polymers by using thereof. The present invention is to develop an anionic polymerization initiator having functional groups, characterized by a high long-term storage stability and an ability to reduce the time of polymerization (increase a polymerization rate) by 10-20%. The polymerization initiator is prepared by a method comprising reacting an amino alcohol with an alkali metal or an organolithium compound in a hydrocarbon solvent, with said amino alcohol being a mixture of products produced by reacting primary or secondary amine aniline with an epoxyalkane. The present invention also provides a process for preparing functionalized diene (co-)polymer rubbers characterized by a random distribution of their monomer units, a high content of vinyl units, such as 1,2-butadiene and/or 3,4-isoprene units (more than 50 wt. %), and a narrow molecular weight distribution (1.4-1.7) using said anionic polymerization initiator. Vulcanizates produced from the rubbers prepared according to the process are characterized with an improved combination of physico-mechanical and elastic-hysteresis properties.
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Inventors:
BUDEEVA ANNA VIKTOROVNA (RU)
LIPSKIKH MAXIM VLADIMIROVICH (RU)
FILONENKO ANASTASIYA VADIMOVNA (RU)
LIPSKIKH MAXIM VLADIMIROVICH (RU)
FILONENKO ANASTASIYA VADIMOVNA (RU)
Application Number:
PCT/RU2014/001017
Publication Date:
October 19, 2017
Filing Date:
December 30, 2014
Export Citation:
Assignee:
SIBUR HOLDING PUBLIC JOINT STOCK CO (RU)
International Classes:
C07F1/02; C08F4/48; C08F36/04; C08F236/02
Attorney, Agent or Firm:
LAW FIRM "GORODISSKY & PARTNERS" LTD (RU)
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