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:
Jun. 16, 2009
Filed:
Aug. 29, 2006
Akira Yamamoto, Gunma, JP;
Shoji Ichinohe, Gunma, JP;
Akira Yamamoto, Gunma, JP;
Shoji Ichinohe, Gunma, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A highly volatile electrical/electronic parts surfactant containing a polyether-modified silicone having one polyether chain in the molecule, wherein the surface tension at 25° C. of a 0.01 mass % aqueous solution thereof is 25 mN/m or less, the aforesaid silicone is expressed by the following average structural formula (1), and when heated from room temperature to 200° C. at a rate of 5° C./minute to 200° C. and maintained at a temperature of 200° C. for 100 minutes, the polyether-modified silicone completely volatilizes without leaving any remainder, and a method of manufacturing this highly volatile polyether-modified silicone are disclosed.AMeSiO(MeASiO)SiMeA  (1) In formula (1), any one of A is a substituent group expressed by the following general formula (2), the remaining A are methyl groups and n is an integer from 0-2.—CHO(CHO)R  (2) In formula (2), a is 3-4, b is an integer from 1-7 and R is a methyl group or an ethyl group.