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:
Jan. 23, 2001
Filed:
Aug. 30, 1999
Marla Marzinke, Ft. Washington, PA (US);
John H. MacMillan, Ambler, PA (US);
Thomas F. August, Glenolden, PA (US);
Michael J. Telepchak, Yardley, PA (US);
United Chemical Technologies, Inc., Bristol, PA (US);
Abstract
A new method for the preparation of aminopropyl terminated or internal functionalized polyalkyl or aryl siloxanes is described. The method involves readily available commercial starting materials and proceeds under mild conditions in high yield. Purification is facilitated over present commercial procedures and a wider variety of internal functionalized siloxanes may be prepared. The method involves hydrosilation of commercially availably alkyl or aryl functional hydrosilicones with allyl amine or other alkenyl or arenyl amine in the presence of platinum (0) divinyltetramethylsiloxane or platinum (0) cyclovinyl complexes.