Compositions – Light transmission modifying compositions
Patent
1996-07-19
1998-06-16
Kelly, C. H.
Compositions
Light transmission modifying compositions
25229901, F21V 900, C09K 1952
Patent
active
057665184
ABSTRACT:
A light modulating material having an excellent energy saving effect as window materials and others which comprises as a main component member a laminate wherein a liquid crystalline material is placed over at least one light transmitting substrate, said laminate having properties of a light transmittance of not less than 50% at a wavelength of 400-750 nm at an overall temperature from not lower than 273K to not higher than 313K, a light transmittance of not less than 60% at a wavelength of 750-2000 nm at an overall temperature from not lower than 273K to low than 288K and a light transmittance of not more than 40% and a light reflectance of not less than 50% at a wavelength of 750-2000 nm at a wavelength of 750-2000 nm at an overall temperature from not lower than 298K to not higher than 313K.
REFERENCES:
patent: 3446181 (1969-05-01), Cooley et al.
patent: 5512215 (1996-04-01), Tachizono et al.
patent: 5514296 (1996-05-01), Chen et al.
patent: 5554707 (1996-09-01), Nagase et al.
patent: 5585035 (1996-12-01), Nerad et al.
Kelly C. H.
Nippon Oil Company Limited
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