Claims
- 1. A stoving lacquer comprising
- I) an effective quantity of a crosslinking agent containing methylol and/or blocked methylol groups; and
- II) an effective quantity of a binder mixture comprising
- A) at least one alkyd resin; and
- B) at least one poly-N-acyl alkyleneimine prepared by cationic polymerization of a monomer mixture of
- a) from 10 to 90% by weight of at least one monomer corresponding to formula (I): ##STR7## in which Z is a direct bond or the group CR.sup.5 R.sup.6, R.sup.1 to R.sup.4 can be the same or different and represent H or a C.sub.1-8 alkyl group, R.sup.5 and R.sup.6 can be the same or different and R.sup.7 is a hydroxyl-containing alkyl or alkylene group of a hydroxycarboxylic acid containing 2 to 32 carbon atoms,
- b) from 90 to 10% by weight of at least one monomer corresponding to formula (II): ##STR8## in which Z and R.sup.1 to R.sup.6 are as defined above and R.sup.8 is the radical of an aromatic monocarboxylic acid, and
- c) from 0 to 80% by weight of at least one monomer corresponding to formula (III): ##STR9## in which Z and R.sup.1 to R.sup.6 are as defined for formula (I), and R.sup.9 represents a non-hydroxy-substituted aliphatic radical of a carboxylic acid wherein the above percentages by weight are based on the weight of the monomer mixture.
- 2. The stoving lacquer of claim 1 wherein component II) B) a) R.sup.7 is a poly-N-acyl alkyleneimine prepared from monomers a) and b) in which Z is a direct bond and R.sup.1 and R.sup.4 are hydrogen in said monomers.
- 3. The stoving lacquer of claim 1 wherein in component II) B) a) R.sup.7 is the alkyl or alkylene radical of a hydroxycarboxylic acid containing 4 to 22 carbon atoms.
- 4. The stoving lacquer of claim 3 wherein R.sup.7 is the alkyl radical of hydroxyhexanoic acid or hydroxystearic acid and/or the alkylene radical of ricinoleic acid.
- 5. The stoving lacquer of claim 1 wherein in component II) B) the at least one poly-N-acyl alkyleneimine is prepared from
- a) 20 to 60% by weight of at least one monomer corresponding to formula (I) in which Z is a direct bond and R.sup.1 to R.sup.4 are hydrogen,
- b) 40 to 60% by weight of at least one monomer corresponding to formula (II) in which Z is a direct bond and R.sup.1 to R.sup.4 are hydrogen, and
- c) 0 to 40% by weight of at least one monomer corresponding to formula (III) in which Z is a direct bond, R.sup.1 to R.sup.4 are hydrogen and R.sup.9 is the radical of a non-hydroxy-substituted aliphatic carboxylic acid containing 2 to 22 carbon atoms,
- wherein the above percentages by weight are based on the total weight of the monomers.
- 6. The stoving lacquer of claim 5 wherein component II) B) a) is ricinoloxazoline and/or hydroxypentyloxazoline, and component b) is phenyloxazoline.
- 7. The stoving lacquer of claim 1 wherein in component II), from 50 to 100 mol % of the residual acid groups present in component A) have been neutralized.
- 8. The stoving lacquer of claim 7 wherein said residual acid groups have been neutralized with ammonia and/or a volatile amine.
- 9. The stoving lacquer of claim 1 wherein component II) A) is at least one alkyd resin produced from a monobasic and a polybasic carboxylic acid and/or anhydrides thereof, and polyethylene glycol in a quantity of from 0.1 to 15% by weight based on alkyd-resin-forming reaction mixture.
- 10. The stoving lacquer of claim 1 wherein component II) A) is present in from 10 to 90% by weight and component B) is present in from 90 to 10% by weight, based on the binder mixture.
- 11. The stoving lacquer of claim 10 wherein component lI) A) is present in from 40 to 60% by weight and component II) B) is present in from 60 to 40% by weight based on the binder mixture.
- 12. The stoving lacquer of claim 1 wherein in the at least one alkyd resin of component II) A) the hydroxyl value is in the range of from 20 to 200.
- 13. The stoving lacquer of claim 12 wherein said hydroxyl value is in the range of from 50 to 150.
- 14. The stoving lacquer of claim 1 wherein in component II) A) at least one alkyd resin has been produced from an unsaturated fatty acid.
- 15. A stoving lacquer of claim 1 wherein component II) is in the form of an emulsion or solution containing from 30 to 50% by weight of said binder mixture.
- 16. The stoving lacquer of claim 1 wherein component I) is selected from the group consisting of phenol/formaldehyde condensates, urea/formaldehyde condensates, and melamine/formaldehyde condensates.
- 17. The stoving lacquer of claim 1 wherein component I) is a urea/formaldehyde condensate containing methylol groups.
- 18. The stoving lacquer of claim 1 which also contains at least one of a solvent, plasticizer, pigment, or siccative.
Priority Claims (1)
Number |
Date |
Country |
Kind |
42 26 805.2 |
Aug 1992 |
DEX |
|
Parent Case Info
Priority is claimed for German Application No. P 42 26 805.2, filed Aug. 13, 1992 and for PCT Application No. PCT/EP93/02079, filed Aug. 5, 1993.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/EP93/02079 |
8/5/1993 |
|
|
2/13/1995 |
2/13/1995 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO94/04621 |
3/3/1994 |
|
|
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Entry |
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