Mixture of diesters of adipic or phthalic acid with isomers of nonanols

US6437170B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Lucien Thil · Schifferstadt, DE
• Boris Breitscheidel · Fulda, DE
• Walter Disteldorf · Monsheim, DE
• Edgar Zeller · Mannheim, DE
• Marc Walter · Bischofswerda, DE
• Bernd Morsbach · Ludwigshafen, DE
• Knut Dornik · Schifferstadt, DE

Key dates

• Filing date: Nov 26, 1999
• Grant date: Aug 20, 2002
• Expiry date: Nov 26, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The mixture described is a mixture of isomeric nonanol diesters of a dicarboxylic acid, selected from the class consisting of a mixture of diesters of adipic acid in the 1H NMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.0 to 2.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.0 ppm with respect to TMS is from 1.20 to 5.00 and a mixture of diesters of phthalic acid, in the 1H NMR spectrum of which, observed in CDCl3, the ratio of the area under the resonance signals at chemical shifts in the range from 1.1 to 3.0 ppm with respect to TMS to the area under the resonance signals at chemical shifts in the range from 0.5 to 1.1 ppm with respect to TMS is from 1.00 to 4.00.The diesters of adipic and phthalic acid are suitable as plasticizers for PVC-based molding compositions and have high compatibility, a low cold crack temperature, low torsional rigidity and/or high thermal stability.