Patent Number: 7,820,768

Title: Process for the preparation of storage-stable polyamidoimide resins and coating materials which contain them

Abstract: Process for the preparation of polyamidoimide resins, in which the centers of the polyamidoimide resins which are reactive toward moisture are reacted with one or more compounds of the following general H--X--R.sup.1, in which, where X=oxygen, R.sup.1 is a straight-chain or branched alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or an aralkyl group and, where X.dbd.NR.sup.2, R.sup.1 is a straight-chain or branched alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or an aralkyl group or an aryl group and R.sup.2 is a straight-chain or branched alkyl group having 1 to 6 carbon atoms, an aralkyl group or an aryl group, or R.sup.1 and R.sup.2 together form a cycloalkyl radical having 4 or 5 methylene groups, it being possible for a methylene group to be replaced by oxygen or an NR.sup.3 group, and R.sup.3 being a straight-chain or branched alkyl group having 1 to 3 carbon atoms, and polyamidoimide coating materials which are prepared by the process.

Inventors: Stevens; Guenter (Kempen, DE), Herlinger; Heinz (Seckach, DE)

Assignee: ALTANA Electrical Insulation GmbH

International Classification: C08G 18/60 (20060101); C08L 79/08 (20060101); C08L 77/00 (20060101); C08G 69/48 (20060101); C08F 283/04 (20060101)

Expiration Date: 2018-10-26 0:00:00