Claims
- 1. A two-component binder composition comprising primarily components (A) and (B) in the equivalent weight ratio of from 2:1 to 1:1.5,
- (A) a CH-acid component that is a polymer with at least two enamine functions in the molecule and is obtained by transesterification of an aliphatic .beta.-ketocarboxylic acid ester, with one or more OH-containing reactants which have at least two-OH-groups in the molecule, the reactant having an OH value of at least 50 and a number-average molecular weight of from 500 to 10,000, the transesterification next including reaction with ammonia or a primary and/or secondary amine, in the presence of from about 0.01 to about 5% wt. based on the total composition of a Lewis or Bronsted base catalyst the conjugate acid of which has a minimum pKA of 10, and
- (B) an .alpha.,.beta.-unsaturated compound containing at least two groups of the formula
- R.sub.1 R.sub.2 C.dbd.CR.sub.3 X (I)
- wherein X is --CO-- bonded through a member of the group consisting of a polyhydric alcohol, a polyamine, and an aminoalcohol residue to a further R.sub.1 R.sub.2 C.dbd.CR.sub.3 X group, and R.sub.1 R.sub.2 and R.sub.3 are independently of each other selected from the group consisting of a hydrogen atom, and a linear or branched chain C.sub.1-10 alkyl group which can have olefinic unsaturations, and/or one or more OH groups.
- 2. The two-component binder composition of claim 1, wherein in (A) the OH-group-containing reactant is selected from the group consisting of:
- (i) a linear or branched chain C.sub.2-12 alkane polyol,
- (ii) a OH-containing poly(meth)acrylate derived from a C.sub.4-12 alkyl-containing (meth)acrylic acid hydroxyalkyl ester, and a poly(methyl)acrylamide derived from a C.sub.2-12 alkyl-containing (meth)acrylic acid hydroxyalkylamide, optionally copolymerized with an .alpha.,.beta.-unsaturated monomer, having a number-average molecular weight Mn of from 1,000 to 10,000,
- (iii) a OH-containing poly(methy)acrylate derived from a C.sub.2-12 alkyl containing (meth)acrylic acid hydroxyalkyl ester and optionally a copolymerizable .alpha.,.beta.-unsaturated monomer modified with cyclic ester of a C.sub.4-6 hydroxycarboxylic acid, having a number-average molecular weight Mn of from 1,000 to 10,000, and
- (iv) a polyester polyol or polyether polyol either having a number-average molecular weight Mn of from 500 to 2,000.
- 3. The binder composition of claim 2, further comprising a pigment.
- 4. The binder composition of claim 3, wherein said pigment is selected from the group consisting of a metal flake pigment and a pearly luster pigment.
- 5. The binder composition of claim 3, wherein said pigment is selected from the group consisting of a metal flake pigment and a color bearing pigment, and the composition optionally further comprises a filler.
- 6. The binder composition of claim 3, wherein said pigment is a color-bearing pigment, and the composition optionally further contains a filler.
- 7. The binder composition of claim 3, wherein said pigment is selected from the group consisting of a pearly luster pigment and a color bearing pigment, and said composition optionally further contains a metal flake pigment.
- 8. The binder composition of claim 3, wherein said pigment is selected from the group consisting of a metallic pigment, and a transparent paint.
Priority Claims (1)
Number |
Date |
Country |
Kind |
39 32 517.2 |
Sep 1989 |
DEX |
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Parent Case Info
This is a continuing application of U.S. Ser. No. 08/219,869, filed on Mar. 30, 1994, which was a continuing application of U.S. Ser. No. 08/004,172, filed on Jan. 13, 1993, which was a continuation of U.S. Ser. No. 07/575,372, filed on Aug. 29, 1990, all now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0160824 |
Nov 1986 |
EPX |
Continuations (3)
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Number |
Date |
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Parent |
219869 |
Mar 1994 |
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Parent |
4172 |
Jan 1993 |
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Parent |
575372 |
Aug 1990 |
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