Siloxane-tin coatings and their use for protecting materials fro

Details Siloxane-tin coatings and their use for protecting materials fro Siloxane-tin coatings and their use for protecting materials fro

1980-02-15

1982-04-20

Schenkman, Leonard

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 97, 106 1505, 2604297, 424184, 528 9, 524857, 556458, 556483, A01N 900, C07F 722, C08G 7704

Patent

active

RE0309095

ABSTRACT:
Compositions for protecting materials from growth of pestiferous organisms, and particularly for protecting marine surfaces from fouling organisms, are formed from precursors having the formula ##STR1## where m is from 1 to about 10, where each X is independently selected from the group consisting of alkyl and alkoxyalkyl radicals containing less than about 6 carbon atoms and Y, where Y has the formula ##STR2## where R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl, cycloalkyl, and aryl radicals, where R.sub.1, R.sub.2 and R.sub.3 contain in combination up to about 18 carbon atoms. The ratio of the tin atoms to silicon atoms in the precursors is at least about 1:50. The precursors can be directly used as an additive for coatings. The precursors can also be used by subjecting them to hydrolysis and polycondensation to form an organotin substituted polysiloxane for use as an additive and a binder for coatings.

REFERENCES:
patent: 2956045 (1960-10-01), Merker
patent: 3167473 (1965-01-01), Leebrick
patent: 3307973 (1967-03-01), Gibbons
patent: 3384648 (1968-05-01), Itoi
patent: 3392036 (1968-07-01), McLeod
patent: 3541215 (1970-11-01), DeMarco
patent: 3653930 (1972-04-01), Law et al.
patent: 3917648 (1975-11-01), McLeod
"The Colloid Chemistry of Silica & Silicates", by Ralph Iler (1955), pp. 72-86.

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