Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1994-02-25
1995-05-16
Nakarani, D. S.
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
52516, 4273936, 427420, 427421, 427428, 4274301, 427440, 428141, 428142, 428144, 428340, 428341, 428405, 428406, 428446, 428447, 428516, 428540, 428543, B05D 118, B32B 2102, D06N 704
Patent
active
054159199
ABSTRACT:
Materials, particularly wood materials and calcium carbonate-containing materials such as concrete and marble, can be protected from the growth of algae by being treated with a compound containing tin covalently bonded to a silylating group such that cleavage of the covalent bonds due to hydrolysis or photolysis is minimized, thus making the treatment ecologically safe. One such compound is (n-Bu).sub.3 SnCH.sub.2 CH.sub.2 Si(OEt).sub.3. The tin compound can either be incorporated into raw materials from which materials are to be made, or it can be applied to the finished materials. When the tin compound is applied to a material that is algae streaked, the streaking should disappear.
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Brown-Wensley Katherine A.
George Billy L.
Griswold Gary L.
Hoch Ramon R.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Nakarani D. S.
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