Process for the continuous preparation of organopolysiloxanes having aminoalkyl groups

• Main Authors: SCHILDBACH, DANIEL, BINDL, JOHANN, GEISBERGER, GILBERT
• Format: Patent
• Language: English; French; German
• Published: 26.11.2008
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Producing organopolysiloxane exhibiting amino alkyl groups, comprises: reacting (A) organopolysiloxane with (B) amino alkyl silane, which shows a silicon carbide bound hydrocarbon exhibiting basic nitrogen and 2 or 3 hydrolyzing groups or their partial or complete hydrolysate, optionally in the presence of (C) basic catalyst and optionally (D) chain terminating reagent; and neutralizing the catalyst with the condition that the compounds (A), (B) and (D) and optionally (C) are reacted continuously in a reaction chamber, whose ratio of length to diameter is >= 4.