Thermochromic color-memory composition

C - Chemistry – Metallurgy – 09 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09D 5/26 (2006.01) B41M 5/28 (2006.01) B41M 5/30 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2138897

A thermochromic color-memory compositions exhibiting high color contrast between high color density in a colored state and sufficiently low color density in a decolored state with high freedom of selection of the reaction medium, and highly useful as a thermochromic material. The thermochromic color-memory composition comprises a homogeneous solubilized mixture of essential three components of (a) an electron-donating color-developing organic compound, (b) an electron-accepting compound, and (c) a reaction medium for controlling a color reaction of the component (a) with the component (b); the component (c) being selected from aliphatic ketones of 10 to 22 total carbons and aryl alkyl ketones of 12 to 24 total carbons; and the composition changing the color thereof with a large hysteresis width (AH) of from 8°C to 80°C.

Composition thermochrome à mémoire de couleur, présentant un fort contraste de couleur entre une forte densité de coloration dans un état coloré et une densité de coloration suffisamment faible dans un état décoloré, avec une grande liberté de sélection du milieu de réaction et une grande utilité comme matériau thermochrome. La composition thermochrome à mémoire de couleur comprend un mélange homogène solubilisé de trois constituants principaux : a) un composé organique révélateur de couleur, donneur d'électron; b) un composé accepteur d'électron; c) un milieu réactionnel pour contrôler la réaction de coloration du constituant (a) avec le constituant (b); le constituant (c) est choisi parmi des cétones aliphatiques de 10 à 22 carbones et des arylalkylcétones de 12 à 24 carbones; composition changeant la couleur avec une large bande d'hystérésis (AH) de 8 à 80 degrés C.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Thermochromic color-memory composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermochromic color-memory composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermochromic color-memory composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1632987

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.