Silanes, process for their preparation and their application to prepare polymers and polycondensates

US5532398A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Herbert Wolter · Höchberg, DE
• Klaus Rose · Mundelsheim, DE
• Christian Egger · Höchberg, DE

Key dates

• Filing date: Dec 29, 1994
• Grant date: Jul 2, 1996
• Expiry date: Dec 29, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/58
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Silanes of the general formula (I): EQU {X.sub.a R.sub.b Si(R'(A).sub.c).sub.(4-a-b) }.sub.x B (I) in which the groups and indices have the following meaning: PA1 X: hydrogen, halogen, hydroxy, alkoxy, acyloxy, alkyl carbonyl, alkoxycaryl or --NR".sub.2 ; PA1 R: alkyl, alkenyl, aryl, alkaryl, or aralkyl; PA1 R': alkylene, arylene or alkylene arylene; PA1 R": hydrogen, alkyl or aryl; PA1 A: O, S, PR", POR", NHC(O)O or NHC(O)NR"; PA1 B: straight chain or branched organic group, which is derived from a B' compound with at least one C.dbd.C double bond for c.dbd.1 and A.dbd.NHC(O)O or NHC(O)NR") or at least two C.dbd.C double bonds, and 5 to 50 carbon atoms; PA1 a: 1, 2 or 3; PA1 b: 0, 1 or 2; PA1 c: 0 or 1; PA1 x: whole number, whose maximum value corresponds to the number of double bonds in compound B' minus 1, or is equal to the number of double bonds in compound B', when c.dbd.1 and A stands for NHC(O)O or NHC(O)NR"; are suitable to prepare homo and copolycondensates and homo or copolymers according to the sol-gel method or by photochemical or thermal polymerization.