Phenylamino saccharide derivatives, their production and pharmaceutical compositions containing them
申请人:KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
公开号:EP0038195A1
公开(公告)日:1981-10-21
Saccharide derivatives are represented by the general formula [I]
wherein R1 represents a residual group formed by removing the hemiacetal hydroxyl group from a monosaccharide, disaccharide or trisaccharide, R2 represents
-CONH2 or -CH2COOR3 and R3 represents a hydrogen atom, an alkyl of one to four carbon atoms or an equivalent of pharmaceutically acceptable metal. These derivatives can be used either alone or in the form of compositions with a pharmaceutically acceptable carrier or diluent to reduce blood sugar levels and blood pressure.
[Object] To provide a reversibly thermochromic composition free from accidental discoloration by heat conducting from the opposite side writing surface or by self-heating due to quick writing; and also to provide a solid writing material and a writing ink composition comprising that composition.
[Means to solve the problem] A reversibly thermochromic composition comprising a combination of: (a) a reversibly thermochromic component capable of being discolored or decolored by heat and (b) a component for controlling heat conducting to the reversibly thermochromic component; and also a solid writing material and a writing ink composition comprising that composition.
Tunable directional color transition compositions and methods of making and using the same
申请人:Segan Industries, Inc.
公开号:US10168307B1
公开(公告)日:2019-01-01
Color change compositions that transition from a first to second color state upon application of an applied stimulus are provided. Also provided are substrates having the compositions on a surface thereof, as well as methods of making and using the compositions.
Compounds for reducing background color in color change compositions
申请人:Segan Industries, Inc.
公开号:US10570294B2
公开(公告)日:2020-02-25
Aspects of the invention include color change compositions having a color former and color developer composition that transitions from a first color state to a second color state upon application of an applied stimulus and an amount of a copolymer sufficient to eliminate background color of the color former and color developer composition during transition from the first color state to the second color state. Methods for preparing and devices employing the color change compositions of the invention are also described.