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:
Apr. 01, 2014
Filed:
Nov. 13, 2009
Amy Gehrig, Merrill, MI (US);
Kelly Humburg, Midland, MI (US);
Kimmai T. Nguyen, Midland, MI (US);
Michael David Telgenhoff, Midland, MI (US);
Robert Wells, Midland, MI (US);
Amy Gehrig, Merrill, MI (US);
Kelly Humburg, Midland, MI (US);
Kimmai T. Nguyen, Midland, MI (US);
Michael David Telgenhoff, Midland, MI (US);
Robert Wells, Midland, MI (US);
Dow Corning Corporation, Midland, MI (US);
Abstract
The invention relates to a process for producing siloxanes comprising reacting at least two siloxanes in the presence of an ion exchange resin catalyst comprising from 6 to 19 weight %, based upon the dry weight of the ion exchange resin catalyst, water, at a temperature from ambient to 110° C. The invention also relates to a process for reusing the ion exchange resin catalyst after the reacting of the at least two siloxanes in the presence of the ion exchange resin catalysts comprising adding water to the ion exchange resin catalyst to readjust the water content to from 6 to 19 weight % water, based on the dry weight of the catalyst, and then reacting at least two siloxanes in the presence of the readjusted water content ion exchange resin catalyst.