Use of persistent heterocyclic free-radicals in magnetic resonance
申请人:Nycomed Innovation AB
公开号:US05435991A1
公开(公告)日:1995-07-25
The present invention provides the use of a persistent .pi.-system free radical for the manufacture of a contrast medium for use in magnetic resonance imaging, wherein the electron delocalising .pi.-system of said radical comprises at least one homo or heterocyclic ring, said radical being other than the chloranil semiquinone anion radical or a trityl radical. Also provided are magnetic resonance imaging contrast media containing and methods using such radicals.
USE OF PERSISTENT FREE-RADICALS IN MAGNETIC RESONANCE IMAGING
申请人:Nycomed Innovation AB
公开号:EP0662004B1
公开(公告)日:1998-03-18
POLAR GROUP-CONTAINING OLEFIN COPOLYMER
申请人:THE UNIVERSITY OF TOKYO
公开号:US20220220239A1
公开(公告)日:2022-07-14
To provide a novel polar group-containing olefin copolymer in which an enone structure is introduced into the main chain as a structural unit. A polar group-containing olefin copolymer comprising a structural unit (A) derived from one or more monomers selected from the group consisting of ethylene and an olefin containing 3 to 20 carbon atoms, and a structural unit (B) represented by the following general formula (I):
(R
x
and R
y
in the general formula (I) are as described in the Description.)