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. 11, 2000
Filed:
Apr. 20, 1998
Applicant:
Inventors:
Frederic Dalle, Kraainem, BE;
Leon Marteaux, Brussels, BE;
Assignee:
Dow Corning S. A., Seneffe, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
516 55 ; 528 15 ; 528 31 ; 524862 ;
Abstract
Described is a method of making a silicone in water emulsion. The method comprises mixing (I) a composition containing at least one polysiloxane, at least one organosilicon material that reacts with said polysiloxane by a chain extension reaction and a metal containing catalyst for said chain extension reaction, (II) at least one surfactant and (III) water to form a mixture. The mixture is emulsified to form an emulsion which can have a wide variety of silicone volume fractions, a broad range of mono-disperse particle sizes and a wide variety of molecular weight polymers.