Claims
- 1. An ungelled, water-dispersible composition suitable for use in electrodeposition comprising:
- A. an essentially epoxy group-free, quaternary ammonium salt-containing resin comprising the reaction product of:
- 1. an organic epoxide having a 1,2-epoxide equivalent of at least about 1, and
- 2. an amine acid salt,
- i. said amine acid salt reacted with said organic epoxide at a temperature of at least room temperature, said temperature being sufficient to form quaternary ammonium salt groups,
- ii. said amine acid salt reacted with said epoxide in an amount sufficient to form quaternary ammonium salt groups and an essentially epoxy group-free composition, this being accomplished by reacting at least a stoichiometric amount of the amine salt with the organic epoxide, or by post reacting the organic epoxide-amine salt reaction product to remove residual epoxy groups; and
- B. boron in the form of boric acid, a boron ester, or other compound of boron which forms boric acid in aqueous medium; said boron being present in an amount sufficient to harden an electrodeposited film.
- 2. The composition of claim 1 wherein said resin contains in the resin molecule at least about 0.05 percent by weight of chemically-bound nitrogen in the form of quaternary ammonium base salt.
- 3. The composition of claim 2, wherein said quaternary ammonium base salt is the salt of an acid having a dissociation constant greater than about 1 .times.10.sup.-.sup.5.
- 4. The composition of claim 3, wherein (B) is chemically-bound to the resin (A).
- 5. The composition of claim 3, wherein the resin contains from about 0.05 to about 16 percent by weight of chemically-bound nitrogen in the form of quaternary ammonium base salt.
- 6. The composition of claim 5, wherein the acid forming said salt is an organic carboxylic acid.
- 7. The composition of claim 3, wherein (B) is in physical admixture with the resin (A).
- 8. The composition of claim 3, wherein the acid salt is in the form of an internal Zwitterion.
- 9. The composition of claim 1, wherein said organic epoxide is a polyglycidal ether of a polyphenol.
- 10. An aqueous dispersion suitable for use in electrodeposition comprising:
- A. an essentially epoxy group-free, quaternary ammonium salt-containing resin comprising the ungelled reaction product of:
- 1. an organic epoxide having a 1,2-epoxide equivalent of at least about 1, and
- 2. an amine acid salt,
- i. said amine acid salt reacted with the organic epoxide at at least room temperature, said temperature being sufficient to form quaternary ammonium salt groups,
- ii. said amine acid salt reacted with said organic epoxide in an amount sufficient to form quaternary ammonium salt groups and an essentially epoxy group-free composition, this being accomplished by reacting at least a stoichiometric amount of amine salt with the organic epoxide, or by post reacting the organic epoxide-amine salt reaction product to remove residual epoxy groups; and
- B. boric acid.
- 11. The aqueous dispersion of claim 10, wherein said resin contains in the resin molecule at least about 0.05 percent by weight of chemically-bound nitrogen in the form of quaternary ammonium base salt.
- 12. The aqueous dispersion of claim 11, wherein said quaternary ammonium base salt is the salt of an acid having a dissociation constant greater than about 1 .times. 10.sup.-.sup.5.
- 13. The aqueous dispersion of claim 12 wherein the acid salt is in the form of an internal Zwitterion.
- 14. The aqueous dispersion of claim 12, wherein the resin contains from about 0.05 to about 16 percent by weight of chemically-bound nitrogen in the form of quaternary ammonium base salt.
- 15. The aqueous dispersion of claim 14 wherein the acid forming said salt is an organic carboxylic acid.
- 16. The aqueous dispersion of claim 10, wherein said organic epoxide is a polyglycidyl ether of a polyphenol.
- 17. The ungelled, water-dispersible composition of claim 1 in which the amine acid salt is reacted with the organic epoxide at a temperature over the range of room temperature to 110.degree.C., said temperature being sufficient to form quaternary ammonium salt groups.
- 18. The ungelled, water-dispersible composition of claim 1 in which the organic epoxide is reacted with at least a stoichiometric amount of amine salt.
- 19. The aqueous dispersion of claim 10 in which the amine acid salt is reacted with the organic epoxide at a temperature over the range of room temperature to 110.degree.C., said temperature being sufficient to form quaternary ammonium salt groups.
- 20. The aqueous dispersion of claim 10 in which the organic epoxide is reacted with at least a stoichiometric amount of amine salt.
CROSS-REFERENCES TO RELATED APPLICATIONS
This application is a continuation-in-part of copending application Ser. No. 277,697, filed Aug. 3, 1972, now abandoned which in turn is a continuation-in-part of applications (A) Ser. No. 158,063, filed June 29, 1971, now abandoned; (B) Ser. No. 167,470, filed July 29, 1971; (C) Ser. No. 129,267, filed Mar. 29, 1971, now abandoned; and (D) Ser. Nos. 100,825 and 100,834, both filed Dec. 22, 1970, and both now abandoned. Application Ser. No. 158,063 (A) in turn is a division of copending Application Ser. No. 772,366, filed Oct. 31, 1968, now abandoned; Application Ser. No. 167,470 (B) is, in turn, a continuation-in-part of copending Applications Ser. Nos. 840,847 and 840,848, both filed July 10, 1969, both now abandoned, as well as a continuation-in-part of copending Applications Ser. Nos. 100,825 and 100,834 (D), both filed Dec. 22, 1970; Applications Ser. Nos. 100,825 and 100,834 (D) both, in turn, being continuations-in-part of copending Application Ser. No. 56,730, filed July 20, 1970, now abandoned, which, in turn, is a continuation-in-part of copending Application Ser. No. 772,366, filed Oct. 31, 1968, now abandoned.
US Referenced Citations (5)
Related Publications (8)
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Number |
Date |
Country |
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158063 |
Jun 1971 |
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129267 |
Mar 1971 |
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100825 |
Dec 1970 |
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100834 |
Dec 1970 |
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100834 |
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840847 |
Jul 1969 |
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840848 |
Jul 1969 |
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100834 |
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Divisions (1)
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Number |
Date |
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Parent |
772366 |
Oct 1968 |
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Continuation in Parts (5)
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Number |
Date |
Country |
Parent |
277697 |
Aug 1972 |
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Parent |
167470 |
Jul 1971 |
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Parent |
100825 |
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Parent |
56730 |
Jul 1970 |
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Parent |
772366 |
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