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US 6,281,321 B1Granted
Coating compositions
AssigneeAkzo Nobel N.V.
InventorsSarah Anne Mackie Kelly, Christopher Robin Birkert, Adrian Ferguson Andrews
Life of this patent
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AssigneeAkzo Nobel N.V.
InventorsSarah Anne Mackie Kelly, Christopher Robin Birkert, Adrian Ferguson Andrews
Estimating the term…
A curable coating composition has a binder comprising a compound or polymer (A) containing at least one primary or secondary amine group, a compound or polymer (B) containing at least one ethylenically unsaturated double bond activated by an adjacent electron-withdrawing group, and a polymer (C) containing at least two silicon-bonded alkoxy groups. Either (A) or (B) contains at least one silicon-bonded alkoxy group in its molecule. The coating is capable of curing at ambient temperature and humidity both by hydrolysis and condensation of the Si—O—C bonds of the polyorganosiloxane (C) and of the aminoalkyl silane (A) and by Michael-type addition reaction of the amine group of the aminoalkyl silane (A) with the activated ethylenically unsaturated double bonds of (B).
A curable coating composition having a binder comprising a compound or polymer (A) containing at least one primary or secondary amine group and a compound or polymer (B) containing at least one ethylenically unsaturated double bond activated by an adjacent electron-withdrawing group, wherein the compound or polymer (B) contains at least two activated ethylenically unsaturated double bonds if the compound or polymer (A) contains only one primary or secondary amine group, wherein either (A) or (B) contains at least one silicon-bonded alkoxy group in its molecule and the composition additionally contains a polymer (C) containing at least two silicon-bonded alkoxy groups.
A curable coating composition comprising a polyorganosiloxane (C) containing at least two alkoxy groups bonded to silicon and an aminoalkyl silane (A) containing at least one alkoxy group bonded to silicon, and a compound or polymer (B) containing at least two ethylenically unsaturated double bonds each activated by an adjacent electron-withdrawing group, wherein the coating is capable of curing at ambient temperature and humidity both by hydrolysis and condensation of the Si—O—C bonds of the polyorganosiloxane (C) and of the aminoalkyl silane (A) and by Michael-type addition reaction of the amine group of the aminoalkyl silane (A) with the activated ethylenically unsaturated double bonds of (B).
A coating composition according to claim to 19, wherein the composition contains a catalyst which is a nitrate of a polyvalent metal ion.
Dependencies are inferred from the claim text.