Corrosion and alkali-resistant compositions and methods for using the same
First Claim
Patent Images
1. A composition comprising:
- a) a reaction product of one or more epoxy-containing materials and one or more phosphorus-containing materials;
b) a curing agent; and
c) a particulate material consisting essentially of elemental silicon, wherein the composition is substantially free of conductive pigments and wherein the equivalent ratio of the phosphorous-containing material to epoxy-containing material is between about 0.3;
1 and 5;
1.
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Abstract
A corrosion resistant, alkali resistant coating composition is disclosed. The composition comprises a binder comprising a reaction product of an epoxy-containing material and a phosphorus-containing material together with a curing agent. Aminoplasts, especially melamine-based aminoplasts, are particularly suitable curing agents. A source of silicon can optionally be included. The compositions also provide excellent adhesion and can be used with or without a weldable primer. The compositions are applied to and cured on a metal substrate.
14 Citations
47 Claims
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1. A composition comprising:
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a) a reaction product of one or more epoxy-containing materials and one or more phosphorus-containing materials; b) a curing agent; and c) a particulate material consisting essentially of elemental silicon, wherein the composition is substantially free of conductive pigments and wherein the equivalent ratio of the phosphorous-containing material to epoxy-containing material is between about 0.3;
1 and 5;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A weldable, corrosion resistant layer deposited on a substrate, wherein the weldable layer provides alkaline resistance to the substrate, is substantially free of conductive pigments, and comprising:
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a) a cured reaction product of (i) a reaction product of at least one epoxy-functional material and at least one phosphorus-containing material, and (ii) a curing agent; and b) a particulate material consisting essentially of elemental silicon. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A weldable, corrosion resistant layer deposited on a substrate, wherein the weldable layer is of a thickness to provide corrosion resistance without inhibiting welding, is substantially free of conductive pigments, and comprises
a) the cured reaction product of (i) at least one epoxy-functional material and at least one phosphorus-containing material, and (ii) a curing agent; - and
b) a particulate material consisting essentially of elemental silicon wherein the equivalent ratio of the phosphorous-containing material to epoxy-functional material is between 0.3;
1 and 5;
1. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification