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. 07, 2015
Filed:
Jan. 24, 2013
Shin-etsu Chemical Co., Ltd., Chiyoda-ku, JP;
Yuji Ando, Annaka, JP;
Shin-Etsu Chemical Co., Ltd., Chiyoda-ku, JP;
Abstract
A method for producing an organopolysiloxane emulsion composition, which enables the organopolysiloxane to be formed with a high viscosity in a short period of time, and suppresses the amount of octamethylcyclotetrasiloxane (D4) to not more than 3,000 ppm. Specifically, a method for producing an organopolysiloxane emulsion which includes emulsifying a mixture containing an organopolysiloxane represented by formula: HO(RSiO)H and having a D4 content of not more than 1,000 ppm, a nonionic surfactant, an anionic surfactant, and water, and subjecting the obtained emulsion composition to emulsion polymerization, thus preparing the emulsion composition.