×

FREEZE INDICATOR EMPLOYING LIGHT SCATTERING AND METHOD OF MAKING SAME

  • US 20140048010A1
  • Filed: 08/16/2013
  • Published: 02/20/2014
  • Est. Priority Date: 08/16/2012
  • Status: Active Grant
First Claim
Patent Images

1. An indicator dispersion comprising:

  • a liquid medium; and

    particles of a colored indicator agent dispersed in the liquid medium, the colored indicator agent particles having an inherent color;

    wherein the indicator dispersion exhibits the inherent color of the colored indicator agent particles after freezing and is configured to have a less colored appearance before freezing and wherein light scattering masks the inherent color of the colored indicator agent particles before freezing; and

    wherein the indicator dispersion is free of color-changing chemical co-reactants.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×