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

1976-08-26

1978-03-21

Schenkman, Leonard

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 97, 106 15FP, 260 2S, 260 37SB, 260 465E, 260 465R, 2604297, 424184, 427387, 428447, A01N 900, C08G 7704, C07F 722

Patent

active

040801900

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: 3384648 (1968-05-01), Itoi
patent: 3653930 (1972-04-01), Law et al.

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