Compositions having a phosphazene derivative and a cross-linking agent

US5994497A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Thomas Raith · Westerstetten, DE
• Wolfgang Nuding · Ulm, DE

Key dates

• Filing date: Nov 4, 1997
• Grant date: Nov 30, 1999
• Expiry date: Nov 4, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to hardenable compositions which contain as the essential constituent, in the non-hardened condition, at least one phosphazene derivative of the general formula [NP--(X--Y--Z).sub.2 ].sub.n, and at least one cross-linking agent with at least two functional groups which are selected among the Z radicals and which can react with the functional Z radicals of the phosphazene derivative is provided, wherein PA1 X radicals are from the group --O--, --S--, --NH-- or --NR--, preferably oxygen, PA1 Y are aliphatic, cycloaliphatic, aromatic and/or heteroaromatic hydrocarbon groups, PA1 Z are functional radicals from the group --OH, --NH.sub.2, --NCO, --COOH, --CHO, --CH.dbd.CH.sub.2, allyl, N-methylol, acrylate, methacrylate, silyl, glycidyl or epoxy or preliminary stages of the radicals from this group or radicals from this group which are blocked by protective groups, preferably acrylate or methacylrate radicals and PA1 n is an integer of at least 3 and no more than 10; The NP radicals of the above formula are preferably combined to a phosphazene ring, n being 3 or 4. The phophazene derivatives can be used for the production of hardenable lacquers, coating agents or f…