Title:
鎖連結高分子スルフィド化合物の合成及びゴム組成中での使用
Document Type and Number:
Japanese Patent JP2005505648
Kind Code:
A
Abstract:
The invention provides chain-coupled polymeric sulfide compounds for use as the elastomeric component in vulcanizable elastomeric compositions comprising silica, carbon black or mixtures thereof. In particular, the invention provides anionically polymerized polymers having polymer chain living ends that are functionalized with sulfide groups and coupled together by a metal or nonmetal atom. The chain-coupled polymeric sulfide compounds have an initial high viscosity for ease of handling prior to compounding, a stable viscosity during storage, and a decreased compound viscosity for better filler dispersion and improved mixing efficiency. The invention further provides a pneumatic tire having at least one component produced from the vulcanizable elastomeric composition of the invention. A tire tread produced from vulcanized elastomers exhibiting these improved properties will exhibit reduced hysteresis resulting in an increase in rebound and improved rolling resistance and wet traction.
Inventors:
Terence Hogan
William El Hagen Rosa
William El Hagen Rosa
Application Number:
JP2003534466A
Publication Date:
February 24, 2005
Filing Date:
October 10, 2002
Export Citation:
Assignee:
Bridgestone Corporation
Terence Hogan
William El Hagen Rosa
Terence Hogan
William El Hagen Rosa
International Classes:
B60C1/00; C08C19/44; C08F8/00; C08F8/34; C08F8/42; C08K3/04; C08K3/06; C08K3/36; C08L101/02; (IPC1-7): C08F8/00; B60C1/00; C08K3/04; C08K3/06; C08K3/36; C08L101/02
Attorney, Agent or Firm:
Kosaku Sugimura