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:
Aug. 12, 2008
Filed:
Mar. 20, 2003
Fernande Boisson, Villeurbanne, FR;
Lucile Gambut, Lyons, FR;
Gérard Mignani, Lyons, FR;
Bluestar Silicones France SAS, Lyons, FR;
Abstract
The invention provides a method for preparing functionalized polyorganosiloxane resins (POS) comprising units M: (RSiO), Q: (SiO) and M': (YRSiO) and optionally D: (RSiO) and/or D′: (RYSiO) and T: (RSiO) and/or T′: (YSiO), wherein in said units R is C-C, alkyl or C-C, aryl and Y is a functional group (such as Si—H), by redistributing POS resins, using POSf bearing functional groups M′ and/or D′ and/or in the presence of an acid catalyst such as triflic acid or one of its derivatives and a non-basic inert filler: carbon black, diatomaceous earth, zeolite or acid or neutral oxide (AlO, NaO, TiO, MgO, silica). The invention also provides said catalyst system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile