Title:
ELASTOMER MADE BY USING ANIONIC POLYMERIZATION INITIATOR AND PRODUCT THEREFROM
Document Type and Number:
Japanese Patent JP2539188
Kind Code:
B2
Abstract:
PURPOSE: To obtain an elastomer which gives, e.g. a tire reduced hysteresis having low rolling resistance by the anionic polymerization of a solution containing a specified monomer in the presence of a specified Sn- and Li- containing organic initiator.
CONSTITUTION: A monomer solution containing at least one monomer selected from among a 4-12C conjugated diene monomer, an 8-18C aromatic monovinyl monomer and a mixture thereof is polymerized in the presence of an Sn- and Li-containing organic initiator to give an elastomer represented by the formula (wherein R is 1-20C alkyl, 3-20C cycloalkyl, 6-20C aryl or 7-20C aralkyl; and Y is a divalent polymer group derived from any one of a diene homopolymer and aromatic monovinyl random and block copolymers), having a molecular weight (Mn) of 79,400 to 119,900 and reduced in hysteresis. This elastomer can give a vulcanizing rubber composition reduced in hysteresis.
Inventors:
UIRIAMU ERU HAAGENROZAA
TORISUTORAMU DABURYUU BESEA
JON EMU DOSHAKU
TORISUTORAMU DABURYUU BESEA
JON EMU DOSHAKU
Application Number:
JP15564595A
Publication Date:
October 02, 1996
Filing Date:
May 31, 1995
Export Citation:
Assignee:
BRIDGESTONE FIRESTONE INC
International Classes:
B60C1/00; C07F7/22; C08C19/44; C08F2/38; C08F4/00; C08F4/42; C08F4/48; C08F4/54; C08F4/58; C08F4/72; C08F12/00; C08F12/02; C08F36/04; C08F297/04; C08K3/00; C08K3/04; C08L9/06; C08L21/00; C08L25/02; (IPC1-7): C08F12/02; B60C1/00; C08F36/04; C08K3/04; C08L9/06; C08L25/02
Attorney, Agent or Firm:
Heiyoshi Odashima