Hyperbranched compounds with a tetrafunctional central group and use of same

US6515192B1 · kind B1 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Heinz-Peter Rink · Hachenburg, DE
• Dunja Mikolajetz · Ascheberg, DE

Key dates

• Filing date: Feb 20, 2001
• Grant date: Feb 4, 2003
• Expiry date: Feb 20, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K2200/0655
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Hyperbranched compounds having a tetrafunctional central group of the general formula IC[—Aq—X—]m[—Ar—X—]n[—As—X—]o[—At—X—]p  (I),in which the indices and variables have the following meanings:m+n+o+p=4; wherem=an integer from 1 to 3 andn, o and p=0 or an integer from 1 to 3;q,r,s and t=an integer from 1 to 5, where q>r, s and t;X=—O—, —S— or —NH—;A=—CR2—; whereR=—H, —F, —Cl, —Br, —CN, —NO2, C1-C3 alkyl or C1-C3 haloalkyl or C1-C3 alkoxy radical or, if q, r, s and/or t=at least 2, a C2-C4 alkanediyl and/or C2-C4 oxaalkanediyl radical which bridges 2 to 5 carbon atoms, and/or an oxygen atom —O—, which bridges 3 to 5 carbon atoms, of the radical —A—.