Use Of Block Copolymers In Coatings
AssigneeEvonik Degussa GmbH
InventorsNicolai Kolb, Patrick Glöckner
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Abstract
The present invention relates to the use of block copolymers based on OH-, COOH- or amino-functionalized polyolefins and polyesters as binders in coating compositions, preferably paints, especially for improving the adhesion of coatings, especially coil coatings on metals, and to coating compositions comprising the block copolymers mentioned.
Claims12
A coating composition formed from OH-, COOH- or amino-functionalized polymers and polyesters as binders in coating compositions, wherein the OH-, COOH- or amino-functionalized polymers are selected from the group consisting of NH2- or NHR- or NR2-functionalized polyamides, NH2- or NHR- or NR2-functionalized polyamines, OH- or COOH-functionalized polystyrene, and OH- or COOH-functionalized polyolefins, where R is identical or different organic radicals.
A coating composition comprising (a) block copolymers formed from OH-, COOH- or amino-functionalized polymers (block B) and polyesters (block A), and (b) a further OH-, COOH- or amino-functionalized component, wherein the OH-, COOH- or amino-functionalized polymers are selected from the group consisting of NH2- or NHR- or NR2-functionalized polyamides, NH2- or NHR- or NR2-functionalized polyamines, OH- or COOH-functionalized polystyrene and OH- or COOH-functionalized polyolefins, where R is identical or different organic radicals.
Dependencies are inferred from the claim text.