Polyepoxy resin compositions
View Patent ↗The present invention relates to polyepoxy resins, methods for making polyepoxy resins water soluble, curable coating compositions, and kits useful in their preparation.
1. A composition comprising:
water; and
a polyepoxy resin composition comprising
a compound of formula III:
wherein:
R 1 and R 2 are each independently alkyl or -(alkylene)-epoxyethyl;
R 3 is alkyl, aralkyl, or aryl, wherein said alkyl, aralkyl or aryl is optionally substituted with 0-5 Z;
R 4 and R 5 are each independently H, alkyl, or aryl, wherein said alkyl or aryl is optionally substituted with 0-5 Z;
Z is:
R 7 and R 8 are each independently H, alkyl, or aryl;
R 9 and R 10 are each independently alkyl or -(alkylene)-epoxyethyl, provided that at least two of R 1 , R 2 , R 9 and R 10 are -(alkylene)epoxyethyl;
j is the integer 0 or 1; and
a carboxylic acid;
wherein the carboxylic acid is HCO 2 H or alkyl-CO 2 H, said alkyl optionally substituted with halo, alkoxy, monohaloalkoxy, polyhaloalkoxy, alkyl, aralkyl, aryl, hydroxyl (—OH), nitro (—NO 2 ), cyano (—CN), sulfonyl (—SO 2 R 4 ), sulfamoyl (—SO 2 NR 5 R 6 ), or amino (—NH 2 , NHR 5 , NHR 6 , N(R 5 R 6 );
wherein the polyepoxy resin composition is substantially water soluble.
2. The composition of claim 1 , wherein the ratio of carboxylic acid equivalents to amine equivalents of the compound of formula III is at least about 0.8.
3. The composition of claim 2 , wherein said ratio is within the range of about 0.8 to about 5.
4. The composition of claim 3 , wherein R 3 is:
5. The composition of claim 2 , wherein said ratio is within the range of about 0.8 to about 2.
6. The composition of claim 2 , wherein said ratio is within the range of about 0.8 to about 1.5.
7. The composition of claim 1 , wherein said aryl is:
wherein R 7 and R 8 are each H, wherein Z is —CH 2 NR 9 R 10 , and wherein each of R 1 , R 2 , R 9 , and R 10 is:
8. A coating produced from a mixture comprising: the composition of claim 1 ; and
a curative.
9. The coating produced of claim 8 , wherein said carboxylic acid is acetic acid.
10. The coating produced of claim 8 , wherein the compound of formula III of said polyepoxy resin is:
11. The coating produced of claim 10 , wherein said formula III compound is:
12. The coating produced of claim 11 , wherein said carboxylic acid is acetic acid.
13. The coating produced of claim 10 , wherein said formula III compound is:
14. A kit for forming a coating produced from a mixture comprising the composition of claim 1 .
15. The kit of claim 14 , further comprising a curative.
16. The kit of claim 14 , wherein the carboxylic acid is acetic acid.
17. The kit of claim 14 , wherein the compound of formula III is:
18. The kit of claim 17 , wherein said formula III compound is:
19. The kit of claim 17 , wherein said formula III compound is: