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US 2010/0247922 A1Published application
Water Based Non-Chromated Primers for Structural Bonding Applications
AssigneeCytec Technology Corp.
InventorsKunal Gaurang Shah, Dalip Kumar Kohli
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Abstract
Non-chromated corrosion inhibiting primer formulations having one or more active corrosion inhibitors covalently anchored, or optionally covalently anchored, onto an organic and/or inorganic reactive specie are provided herein.
Claims46
A non-chromated corrosion inhibiting primer formulation comprising
- an epoxy resin;
- a curing agent comprising a cure temperature greater than 300° F.;
- an organosilane comprising a hydrolysable group;
- and
- a corrosion inhibiting material comprising one or more active corrosion inhibitors chosen from:
- a) an amino benzothiazole-based compound having the formula:
- wherein R3 is chosen from H, CnH2n+1 and OCnH2n+1;
- b) an inorganic compound comprising an ion chosen from:
- NaVO3, molybdate, cerium, and combinations thereof;
- c) a benzotriazole-based compound having the formula
- wherein R1 is chosen from H, CnH2n+1, COOH, and OH;
- wherein R2 is chosen from H and CnHn+1;
- (d) a phenylmaleimide-based compound having the formula:
- wherein each R4 is independently chosen from:
- S, NH, and O;
- and
- (e) a mercaptobenzoimidazole-based compound having the formula:
- wherein R5 is chosen from:
- H, CnH2n+1, COOH, and OH;
- and
- wherein n is an integer;
- and
- wherein the corrosion inhibitor is covalently anchored onto an organic or inorganic reactive specie when chosen from (a), (c), (d) or (e);
- and wherein the corrosion inhibitor is optionally covalently anchored onto an organic or inorganic reactive specie when chosen from (b).
21 more elements
A non-chromated corrosion inhibiting primer formulation comprising:
- an epoxy resin;
- a curing agent;
- an organosilane comprising a hydrolysable group;
- and
- a corrosion inhibiting material comprising a first and a second active corrosion inhibitor chosen from:
- a) an amino benzothiazole-based compound having the formula:
- wherein R3 is chosen from H, CnH2n+1;
- and OCnH2n+1;
- b) an inorganic compound comprising an ion chosen from NaVO3, molybdate, cerium, and combinations thereof;
- c) a benzotriazole-based compound having the formula:
- wherein R1 is chosen from:
- H, CnH2n+1;
- COOH, and OH;
- wherein R2 is chosen from H and CnH2n+1;
- (d) a phenylmaleimide-based compound having the formula:
- wherein each R4 is independently chosen from:
- S, NH, and O;
- and
- (e) a mercaptobenzoimidazole-based compound having the formula:
- wherein R5 is chosen from:
- H, C1H2n+1, COOH, and OH;
- and
- wherein n is an integer;
- and
- wherein the corrosion inhibitor is covalently anchored onto an organic or inorganic reactive specie when chosen from (a), (c), (d) or (e);
- and wherein the corrosion inhibitor is optionally covalently anchored onto an organic or inorganic reactive specie when chosen from (b).
23 more elements
Dependencies are inferred from the claim text.