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US 7,009,006 B2Granted
Crosslinkable composition
AssigneeRohm and Haas Company
InventorWard Thomas Brown
Life of this patent
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Abstract
A crosslinkable composition is provided including copolymer particles having phosphorus acid groups dispersed in an aqueous medium, and polycarbodiimide, wherein the crosslinkable composition is substantially free of water soluble phosphorus acid compounds. Also provided is a process for forming the crosslinkable composition and a method for crosslinking the crosslinkable composition. The crosslinkable composition is useful as a coating composition to prepare coatings for various substrates including metal, wood, glass, paper, and leather.
Claims5
A crosslinkable composition comprising:
- a) copolymer particles having first phosphorus acid groups;
- b) polycarbodiimide;
- c) an aqueous medium;
- and
- d) at least one water soluble phosphorus acid compound having at least one second phosphorus acid group;
- wherein the ratio of equivalents of said second phosphorus acid groups to equivalents of said first phosphorus acid groups is between greater than 0 and 2.
3 more elements
Dependencies are inferred from the claim text.