Infrared absorber

Details Infrared absorber Infrared absorber

1979-03-16

1981-01-13

Nielsen, Earl A.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 19, 106177, 10628718, 252300, 260 42, 525 2, 525 4, C09D 1100, C09D 532

Patent

active

042447410

ABSTRACT:
This document discloses the use of reduced heteropoly acids as additives to absorbing material to impart reduced infrared reflectivity or transmission thereto. The reduced infrared reflectivity is especially suitable for use in inks for reading bar coded and optical character reader mail by a special sensing device wherein the infrared portion of the spectrum is betwen about 700 and 1000 nanometers. It is also useful in plastics, aqueous solutions, photographic screens, and paints.

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patent: 2971921 (1961-02-01), Coleman et al.
patent: 3000833 (1961-09-01), Coleman et al.
patent: 3291746 (1966-12-01), Donoian et al.
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patent: 3713880 (1973-01-01), Krekeler
patent: 3870528 (1975-03-01), Edds et al.
Prado et al., "reparing Soln's of Reduced Phosphomolybdic Acid", Chemical Abstracts 78, 143541y, (1973).
Miqunova, "Variation of Molybdosilicic Acid with Time", Chemical Abstracts 84, 9520m, (1976).

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