Molded bodies made of polyester containing covalent-bonded oxide particles

US5698309A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hermann Dallmann · Wiesbaden, DE
• Joachim Kinkel · Guldental, DE
• Kurt Marquard · Reinheim, DE
• Ludwig Pohl · Darmstadt, DE

Key dates

• Filing date: Apr 5, 1995
• Grant date: Dec 16, 1997
• Expiry date: Apr 5, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31786
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Moldings, preferably comprising polyester which contains oxide particles which have been subjected to a surface modification with a silylating agent of the formula I EQU R.sup.1 R.sup.2 R.sup.3 !Si--(CH.sub.2).sub.l --X--R.sup.4 (I) wherein PA1 R.sup.1 is Cl or alkoxy having 1 to 6 carbon atoms, PA1 R.sup.2 and R.sup.3 are alkyl having 1 to 6 carbon atoms or R.sup.1, PA1 l is a number from 1 to 6, PA1 X is a single bond, O, NH, CONH or NHCONH, PA1 R.sup.4 is ##STR1## where Y is CH, ##STR2## Z is OR or two radicals Z together are --O-- or NR and m and n are a number from 0 to 6, or R.sub.4 is ##STR3## where X is a single bond and R, R' and R" are H or alkyl having 1 to 6 carbon atoms, and the use of said moldings are described.