Optically clear organosilicon compounds

Details Optically clear organosilicon compounds Optically clear organosilicon compounds

1974-07-29

1976-01-20

Padgett, Benjamin R.

Compositions

Inorganic luminescent compositions

Tungsten containing

350 96C, 350179, F21V 900

Patent

active

039336786

ABSTRACT:
Organosilicon grease-like compounds having good shear stability and being suitable for optical coupling are prepared by mixing a phenylmethylpolysiloxane fluid or a trimethylsiloxy endblocked fluid consisting of decylmethylsiloxane, tetradecylmethylsiloxane and alpha-methylstyrenemethylsiloxane units, a finely divided silica, and a polyalkylene oxide. A typical compound would be a mixture of 150 parts of a phenylmethylpolysiloxane, 15.5 parts of a fume silica having surface area of 380 square meters per gram, and 4 parts of polypropylene oxide having a molecular weight of 2,000. Such a compound has a light transmission in excess of 80% and excellent work shear stability.

REFERENCES:
patent: 3036985 (1962-05-01), Daudt
patent: 3299267 (1967-01-01), Christianson et al.
patent: 3356616 (1967-12-01), Sandler et al.
patent: 3650979 (1972-03-01), Steinbach et al.
patent: 3655274 (1972-04-01), Craig
patent: 3784479 (1974-01-01), Keil
patent: 3856701 (1974-12-01), Householder

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