US 2003/0212286 A1Published application

Purification of silicone oil

AssigneeShin-Etsu Chemical Co., Ltd.

InventorsHiroshi Nakayama, Masao Maruyama, Hiromi Nakabayashi, Susumu Ueno

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Abstract

An unpurified silicone oil is treated with fibrous activated carbon, yielding a silicone oil of high purity, which will find use in the electric and electronic industry and as cosmetics.

Claims3

Dependent claims

A method for purifying silicone oil, comprising treating silicone oil with fibrous activated carbon.

Dependencies are inferred from the claim text.

Facts

Application: 10/436,085Filed 13 May 2003
Priority: JP 2002-13669413 May 2002
Published: 13 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

C08G 77/34
Post-polymerisation treatment: purification
A61K 8/891
Polysiloxanes: saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
A61Q 19/00
Preparations for care of the skin
C08G
Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Family

US 6,737,538 B2Related patent
US 2003/0212286 A1This patent

From the US filing history. Foreign family members aren’t listed.

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