Regenerative nucleating agents
Temperature indicating compositions
Cholesteric liquid crystal water base ink and laminates formed therefrom
Carboxylic acid composition for forming thermoparticulating coating
ApplicationNo. 05/932126 filed on 08/09/1978
US Classes:252/408.1, NONREACTIVE ANALYTICAL, TESTING, OR INDICATING COMPOSITIONS116/207, By heat116/216, Temperature responsive or compensating means116/217, Fusible substance252/583, Modification caused by energy other than light252/962, TEMPERATURE OR THERMAL HISTORY374/161, Change of optical property428/323, Including a second component containing structurally defined particles428/67NONPARTICULATE ELEMENT EMBEDDED OR INLAID IN SUBSTRATE AND VISIBLE
ExaminersPrimary: Gron, Teddy S.
Attorney, Agent or Firm
International ClassesG01K 11/00 (20060101)
G01K 11/16 (20060101)
F24J 2/00 (20060101)
F24J 2/50 (20060101)
F24J 2/40 (20060101)
Foreign Application Priority Data1977-08-25 DE
AbstractIn order, in the case of bodies with reversibly-variable absorbence, to adjust the zone of transition from transparent to opaque or vice versa at desired goal temperatures and to give the bodies a preferred form, such as sheet form, they consist of a substantially optically transparent polymeric and/or resinous matrix material (A) and an organic substance (B) which is embedded therein as a dispersed second phase and which is at least partially insoluble therein, and which melts or congeals at the goal temperature of light-absorbence variation, and the refractive index of which, either above or below the goal temperature of the light-absorbence variation, substantially agrees with the refractive index of the matrix material.Such bodies are usable in sheet (or film) form, for example, for temperature-measuring devices, temperature-indicating devices, and slippery-ice warning devices, as well as for devices on glass windows for protection against solar irradiation.