The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2010
Filed:
Sep. 27, 2006
Hartmut Ackermann, Burghausen, DE;
Hartmut Ackermann, Burghausen, DE;
Wacker Chemie AG, Munich, DE;
Abstract
A continuous process for the preparation of organopolysiloxanes involves, in a first step, reacting chlorosilanes with from 0.01 to 0.7 mol of water per mole of hydrolyzable chlorine and with from 0.2 to 1.7 mol of alcohol per mole of hydrolyzable chlorine, the molar ratio of water to alcohol being from 0.005 to 3.5; in a second step, the reaction mixture obtained in the first step is optionally mixed continuously with a water-insoluble organic solvent having a density of less than 0.9 kg/l, and water is metered in continuously in amounts of from 0.2 to 100 mol of water per mole of silicon component; and in a third step, the aqueous alcoholic phase is separated off.