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:
Jul. 02, 2019
Filed:
Oct. 26, 2017
Momentive Performance Materials Inc., Waterford, NY (US);
John Banevicius, Clifton Park, NY (US);
Misty Huang, New City, NY (US);
Brendan O'Keefe, Parkersburg, WV (US);
Vikram Kumar, Tarrytown, NY (US);
Bruce Barbera, Sleepy Hollow, NY (US);
Momentive Performance Materials Inc., Waterford, NY (US);
Abstract
A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.