Amino and hydroxyl functional compounds
AssigneeNuplex Resins B.V.
InventorsMohamad Deeb SHALATI, NANDA Ajaya, HELLEMS Stephen
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Abstract
The invention relates to amino and hydroxy-functional compounds other than polyesters, wherein the compound includes an amine in the form of aspartic acid esters functionality, and wherein the amino and hydroxy-functional compound has (a) a molecular weight (Mn) of at least about 500, (b) an acid value of about 5 or less, (c) a hydroxyl value of about 30 or more, and (d) an amine value of about 30 or more. Preferably, the compound includes molecules having on the average: at least 1 secondary amino group as an aspartate, and/or at least 1 hydroxy group, and an average total functionality of about 1.8 or higher.
Claims19
An amino and hydroxy-functional compound, not being a polyester, wherein the amino and hydroxy-functional compound comprises an amine in the form of aspartic acid esters functionality, and wherein the amino and hydroxy-functional compound has:
- (a) a molecular weight (Mn) of at least about 500;
- (b) an acid value of about 5 or less;
- (c) a hydroxyl value of about 30 or more;
- and
- (d) an amine value of about 30 or more.
A process for preparing an amino and hydroxy-functional compound, wherein a hydroxyl functional acrylic polymer or other polyol is reacted with maleic acid anhydride producing newly generated free acid groups, and wherein the newly generated free acid groups are converted to esters by reaction with an epoxy compound and wherein at least one of a maleate and fumarate unsaturation is reacted with an aliphatic or aromatic primary monoamine to prepare a corresponding aspartate derivative.
A process for preparing an amino and hydroxy-functional compound, wherein an epoxy functional acrylic polymer or other epoxy compound is reacted with monoalkylmaleate half acid-ester to convert epoxy group into ester groups and wherein at least one of maleate and fumarate unsaturation is reacted with an aliphatic or aromatic primary monoamine to prepare a corresponding aspartate derivative.
A coating composition comprising the following components in parts by weight (pbw):
- (a) amino and hydroxy-functional compound (1-80 pbw), wherein the amino and hydroxy-functional compound is not a polyester, and wherein the compound comprises an amine in the form of aspartic acid esters functionality, and wherein the amino and hydroxy-functional compound has
- (i) a molecular weight (Mn) of at least about 500;
- (ii) an acid value of about 5 or less;
- (iii) a hydroxyl value of about 30 or more;
- and
- (iv) an amine value of about 30 or more.
- (b) polyisocyanate compound (1-65 pbw)
- (c) other binder constituents (0-60 pbw)
- (d) colorants (0-40 pbw)
- (e) additives (0-10 pbw)
- (f) tin catalyst (0-0.1 pbw)
- (g) solvents (0-30 pbw)
- wherein components (a)-(f) together are 100 pbw.
Dependencies are inferred from the claim text.