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US 7,479,514 B2Granted
Adhesion promoting composition and method
AssigneeBASF SE
InventorAnthony Tye
Life of this patent
Estimating the term…
Abstract
An adhesion promoting composition includes a polymer, such as an acrylic copolymer, having acetoacetoxy functionality and adhesion-promoting functionality and a metal alkoxide, chelate, and/or alkoxide chelate. The composition is applied in a first layer over a metal substrate or a coated substrate, then coated with a desired refinish coating composition.
Claims18
An adhesion promoting composition, consisting of:
- a solvent;
- a polymer comprising acetoacetoxy functionality and an adhesion-promoting functionality selected from the group consisting of a hindered secondary amine group, a tertiary amine group, an aziridinyl group, a urea group, a carbamate group, a carbodiimide group, a halogen group, and a combination thereof;
- a metal alkoxide, metal chelate, metal alkoxide chelate, or a mixture thereof;
- optionally, an alcohol, an acetoacetate ester, and a combination thereof;
- and
- optionally, an additive selected from the group consisting of a silicone, a flow additive, a UV absorber, a hindered amine light stabilizer, an antioxidant, an alkoxysilane, a plasticizer, a pigment, a dye, and a combination thereof.
3 more elements
A method of coating a substrate, comprising steps of:
- (a) applying a layer of an adhesion promoting composition comprising
- (i) a polymer comprising acetoacetoxy functionality and an adhesion-promoting functionality selected from the group consisting of a hindered secondary amine group, a tertiary amine group, an aziridinyl group, a urea group, a carbamate group, a carbodiimide group, a halogen group, and a combination thereof;
- and
- (ii) a metal alkoxide and/or alkoxide chelate;
- and
- (b) applying over the layer of adhesion promoting composition a layer of a refinish coating composition.
3 more elements
An adhesion promoting composition, consisting of:
- a solvent;
- a polymer comprising aceotacetoxy functionality and an adhesion-promoting functionality selected from the group consisting of a hindered secondary amine group, a tertiary amine group, an aziridinyl group, a urea group, a carbamate group, a carbodiimide group, a halogen group, and a combination thereof;
- a metal alkoxide, metal chelate, metal alkoxide chelate, or a mixture thereof
- an alcohol, an acetoacetate ester, and a combination thereof;
- and
- an additive selected from the group consisting of a silicone, a flow additive, a UV absorber, a hindered amine light stabilizer, an antioxidant, an alkoxysilane, a plasticizer, a pigment, a dye, and a combination thereof.
3 more elements
Dependencies are inferred from the claim text.