SINGLE FIBRE INCLUDING THERMALLY RESPONSIVE LIQUID-CRYSTAL ELASTOMER, FILAMENT YARN, AND FIBRE PRODUCT
申请人:TOYO TIRE & RUBBER CO., LTD.
公开号:EP3318663A1
公开(公告)日:2018-05-09
The purpose of the present invention is to provide: a single fibre including a thermally responsive liquid-crystal elastomer which reversibly expands and contracts in response to heat; a filament yarn including said single fibre; and a fibre product using the single fibre or the filament yarn. This single fibre includes a thermally responsive liquid-crystal elastomer which reversibly expands and contracts using, as a boundary, a transition temperature (Ti) at which phase transition from a liquid-crystal phase to an isotropic phase or from the isotropic phase to the liquid-crystal phase occurs.
Roetz, U.; Lindau, J.; Weissflog, W., Molecular Crystals and Liquid Crystals (1969-1991), 1989, vol. 170, p. 185 - 194
作者:Roetz, U.、Lindau, J.、Weissflog, W.、Reinhold, G.、Unseld, W.、Kuschel, F.
DOI:——
日期:——
Synthesis and Characterization of Block Copolymers of Polystyrene and Thermotropic Liquid Crystalline Polyesters
作者:Cheng-Chih Chen、Chih-Hung Lin
DOI:10.13005/ojc/340114
日期:2018.2.28
measurement. Optical polarizing microscopy measurements verify the presence of a smectic liquidcrystalline phase for the block copolymers. The block copolymers represent a microphaseseparated morphology, i.e., both amorphous and liquidcrystalline properties were displayed by the polystyrene and liquidcrystallinepolyester segments respectively.
LIQUID-CRYSTAL URETHANE COMPOUND, THERMALLY RESPONSIVE LIQUID-CRYSTAL POLYURETHANE ELASTOMER, AND PRODUCTION METHOD THEREFOR
申请人:TOYO TIRE & RUBBER CO., LTD.
公开号:US20180171233A1
公开(公告)日:2018-06-21
The purpose of the present invention is to provide: a thermally responsive liquid-crystal polyurethane elastomer which is capable of being industrially continuously molded, and which is liquid crystal and has rubber elasticity at low temperatures (in the vicinity of room temperature); and a production method and a starting material therefor. This liquid-crystal urethane compound is obtained by reacting a mesogenic group-containing compound having at least active hydrogen groups, an alkylene oxide and/or a styrene oxide, and a diisocyanate compound.