Cyclic amine based polymers and process for their production

US6111056A · kind A · utility

Assignee

• BASF SE

Inventors

• Soren Hildebrandt · Speyer, DE
• Elisabeth Kappes · Schifferstadt, DE
• Dieter Boeckh · Schifferstadt, DE
• Rajan Keshav Panandiker · Sharonville, US
• Sherri Lynn Randall · Hamilton, US
• Eugene Paul Gosselink · Cincinnati, US
• William Conrad Wertz · West Harrison, US

Key dates

• Filing date: Sep 15, 1998
• Grant date: Aug 29, 2000
• Expiry date: Sep 15, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3776
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A cyclic amine containing polymer substantially free of primary and secondary amino groups which is prepared by reacting: PA1 a) an amine selected from the group consisting of: PA2 i) cyclic amines having at least one nitrogen atom in the ring and at least one primary amino alkyl group bonded to the nitrogen atom of the ring, and PA2 ii) mixtures of cyclic amines containing at least two nitrogen atoms which react with a cross-linking agent with at least one other amine containing 1-6 nitrogen atoms which react with a cross-linking agent, with PA1 b) at least one cross-linker selected from the group consisting of at least one compound containing two groups which react with the primary amino group and said nitrogen atoms and mixtures of at least one compound containing two groups which react with the primary amino group and said nitrogen atoms with at least one compound containing at least three groups which react with the primary amino group and said nitrogen atoms in a molar ratio of (a):(b) of from 2.5:1 to 1:1.5 thereby forming a cyclic amine containing polymer containing primary or secondary amino groups and reacting said cyclic amine based polymer, with PA1 c) an alkylating age…